Stress tests: Weblogic Passivation of entity beans
Dear all,
I'm doing stress tests that consist of hundreds of concurrent access calling the same entity beans.
I noticed a strange behaviour:
- we developed with weblogic 6.1 and everything is Ok.
- The production environment is in weblogic 7.1: the two most used entity Beans are never passivated. Each time such a bean is created, it is afterwards never reused and never passivated. This causes an undesirable full cache Exception.
I configured max-bean in cache to 2000 and timeout to 60 sec.
I'm sure it is a problem of WEBLOGIC 7.1 configuration but I do not have any idea on how to solve it.
Did someone have the same problem?
Regards.
BEA provides a fix that may solve some of the caching problems you mentioned. Name of the fix is: CR110440
Similar Messages
-
statement
In an entity bean, passivation includes releasing resources as well as pushing back the data it is
holding to the underlying database prior to the passivation process.
Hi, when i read stateful session bean the author mentioned about passivation because the stateful bean must have to store the conversational states of many clients. so the bean pushes the data to the secondary stoarge (disk) for future use, if at some time any client needs them the bean could use those states.... thats passivation.
but in Entity bean, i see author also talking about passivation. though author did not explain much. the entity bean is already using a permanent storage . why they need any secondary storage which is meant for passivation ?
because here activation means grabbing data from underlying DB. How does passivation helps here ?Just a guess - I have no idea about EJBs:
Could it be that passivaion in this case simply means "performing the stuff that's needed for an entity bean to be persistent"? An entity bean IIRC represents a persistent set of data, which means that at one point in time, the data must be stored (written to DB) to be accessible later. That'd mean "passivation" is simply a name for an entity bean's normal behavior. -
NON-transactional session bean access entity bean
We are currently profiling our product using Borland OptmizeIt tool, and we
found some interesting issues. Due to our design, we have many session beans which
are non transactional, and these session beans will access entity beans to do
the reading operations, such as getWeight, getRate, since it's read only, there
is no need to do transaction commit stuff which really takes time, this could
be seen through the profile. I know weblogic support readonly entity bean, but
it seems that it only has benefit on ejbLoad call, my test program shows that
weblogic still creates local transaction even I specified it as transaction not
supported, and Transaction.commit() will always be called in postInvoke(), from
the profile, we got that for a single method call, such as getRate(), 80% time
spent on postInvoke(), any suggestion on this? BTW, most of our entity beans are
using Exclusive lock, that's the reason that we use non-transactional session
bean to avoid dead lock problem.
ThanksSlava,
Thanks for the link, actually I read it before, and following is what I extracted
it from the doc:
<weblogic-doc>
Do not set db-is-shared to "false" if you set the entity bean's concurrency
strategy to the "Database" option. If you do, WebLogic Server will ignore the
db-is-shared setting.
</weblogic-doc>
Thanks
"Slava Imeshev" <[email protected]> wrote:
Hi Jinsong,
You may want to read this to get more detailed explanation
on db-is-shared (cache-between-transactions for 7.0):
http://e-docs.bea.com/wls/docs61/ejb/EJB_environment.html#1127563
Let me know if you have any questions.
Regards,
Slava Imeshev
"Jinsong HU" <[email protected]> wrote in message
news:[email protected]...
Thanks.
But it's still not clear to me in db-is-shared setting, if I specifiedentity
lock as database lock, I assumed db-is-shared is useless, because foreach
new
transaction, entity bean will reload data anyway. Correct me if I amwrong.
Jinsong
"Slava Imeshev" <[email protected]> wrote:
Jinsong,
See my answers inline.
"Jinsong Hu" <[email protected]> wrote in message
news:[email protected]...
Hi Slava,
Thanks for your reply, actually, I agree with you, we need to
review
our db
schema and seperate business logic to avoid db lock. I can not say,guys,
we need
to change this and that, since it's a big application and developedsince
EJB1.0
spec, I think they are afraid to do such a big change.Total rewrite is the worst thing that can happen to an app. The
better aproach would be identifying the most critical piece and
make a surgery on it.
Following are questions in my mind:
(1) I think there should be many companies using weblogic serverto
develop
large enterprise applications, I am just wondering what's the maintransaction/lock
mechanism that is used? Transional session / database lock,
db-is-shared
entity
I can't say for the whole community, as for my experience the standard
usage patthern is session fasades calling Entity EJBs while having
Required TX attribute plus plain transacted JDBC calls for bulk
reads or inserts.
is the dominant one? It seems that if you speficy database lock,
the
db-is-shared
should be true, right?Basically it's not true. One will need db-is-shared only if thereare
changes
to the database done from outside of the app server.
(2) For RO bean, if I specify read-idle-timeout to 0, it shouldonly
load
once at the first use time, right?I assume read-timeout-seconds was meant. That's right, but if
an application constantly reads new RO data, RO beans will be
constantly dropped from cache and new ones will be loaded.
You may want to looks at server console to see if there's a lot
of passivation for RO beans.
(3) For clustering part, have anyone use it in real enterpriseapplication?
My concern, since database lock is the only way to choose, how aboutthe
affect
of ejbLoad to performance, since most transactions are short live,if high
volume
transactions are in processing, I am just scared to death about
the
ejbLoad overhead.
ejbLoad is a part of bean's lifecycle, how would you be scared ofit?
If ejbLoads take too much time, it could be a good idea to profile
used SQLs. Right index optimization can make huge difference.
Also you may want cosider using CMP beans to let weblogic
take care about load optimization.
(4) If using Optimization lock, all the ejbStore need to do
version
check
or timestamp check, right? How about this overhead?As for optimistic concurrency, it performs quite well as you can
use lighter isolation levels.
HTH,
Slava Imeshev
"Jinsong Hu" <[email protected]> wrote in message
news:[email protected]...
We are using Exclusive Lock for entity bean, because of we do
not
want
to
load
data in each new transaction. If we use Database lock, that means
we
dedicate
data access calls to database, if database deadlock happens,
it's
hard
to
detect,
while using Exclusive lock, we could detect this dead lock in
container
level.
The problem is, using Exclusive concurrency mode you serialize
access to data represented by the bean. This aproach has negative
effect on ablity of application to process concurrent requests.As
a
result the app may have performance problems under load.
Actually, at the beginnning, we did use database lock and usingtransactional
The fact that you had database deadlocking issues tells that
application logic / database schema may need some review.
Normally to avoid deadlocking it's good to group database
operations mixing in updattes and inserts into one place so
that db locking sequence is not spreaded in time. Moving to
forced serialized data access just hides design/implementation
problems.
session bean, but the database dead lock and frequent ejbLoad
really
kill
us,
so we decided to move to use Exclusive lock and to avoid dead
lock,
we
change
some session bean to non-transactional.Making session beans non-transactions makes container
creating short-living transactions for each call to entity bean
methods. It's a costly process and it puts additional load to
both container and database.
We could use ReadOnly lock for some entity beans, but since weblogicserver will
always create local transaction for entity bean, and we found
transaction
commit
is expensive, I am arguing why do we need create container leveltransaction for
read only bean.First, read-only beans still need to load data. Also, you may seeRO
beans
contanly loading data if db-is-shared set to true. Other reason
can
be
that
RO semantics is not applicable the data presented by RO bean (forinstance,
you have a reporting engine that constantly produces "RO" data,
while
application-consumer of that data retrieves only new data and neverasks
for "old" data). RO beans are good when there is a relatively stable
data
accessed repeatedly for read only access.
You may want to tell us more about your app, we may be of help.
Regards,
Slava Imeshev
I will post the performance data, let's see how costful
transaction.commit
is.
"Cameron Purdy" <[email protected]> wrote:
We are currently profiling our product using Borland
OptmizeIt
tool,
and we
found some interesting issues. Due to our design, we have
many
session
beans which
are non transactional, and these session beans will access
entity
beans
to
do
the reading operations, such as getWeight, getRate, since
it's
read
only,
there
is no need to do transaction commit stuff which really takes
time,
this
could
be seen through the profile. I know weblogic support readonly
entity
bean,
but
it seems that it only has benefit on ejbLoad call, my test
program
shows
that
weblogic still creates local transaction even I specified
it
as
transaction not
supported, and Transaction.commit() will always be called
in
postInvoke(),
from
the profile, we got that for a single method call, such as
getRate(),
80%
time
spent on postInvoke(), any suggestion on this? BTW, most of
our
entity
beans are
using Exclusive lock, that's the reason that we use
non-transactional
session
bean to avoid dead lock problem.I am worried that you have made some decisions based on an improper
understand of what WebLogic is doing.
First, you say "non transactional", but from your description
you
should
have those marked as tx REQUIRED to avoid multiple transactions
(since
non-transactional just means that the database operation becomesits
own
little transaction).
Second, you say you are using exclusive lock, which you shouldonly
use
if
you are absolutely sure that you need it, (and note that it
does
not
work in
a cluster).
Peace,
Cameron Purdy
Tangosol, Inc.
http://www.tangosol.com/coherence.jsp
Tangosol Coherence: Clustered Replicated Cache for Weblogic
"Jinsong Hu" <[email protected]> wrote in message
news:[email protected]...
> -
Using Composite keys in Entity Beans
Hi, I am trying to develop a test application with two entity beans, (1) OrderBean (key is a string called order_no) and (2) LineBean (key is order_no and an integer line_no) using CMP 2.0. Relationship between OrderBean to LineBean is 1 to many. I created a primary key class for LineBean called, LinePK with both order_no and line_no as the public members. My home interface for LineBean has the following three finder methods:
public java.lang.Object findByPrimaryKey(LinePK lkey);
public Collection findByOrder(String order_no);
public Collection findByProduct(String product_id);
I could provide sql for the OrderBean which has only one field(order_no) as primary key, but I don't know how to code appropriate SQL for the finder methods of LineBean involving a user defined primary key class (in my case LinePK with order_no and line_no). I am trying to deploy this application in J2EE RI server, but getting deployment errors saying invalid return types for the finder methods. In the deploytool I provided the primary key class for LineBean as java.lang.Object with no primary key field name. Any help in this matter with sample sql code is greatly appreciated. Thanks !!!Some things to consider:
- Your findByPrimaryKey in the Remote interface needs to have the remote interface as return type
- The implementation of the finder needs to have your primary key class as return type
- If you're using CMP 2.0, you need to specify the search criteria as EJB QL
Using CMP 2.0, you don't code findByPrimaryKey at all, all you need is the EJB QL for findByOrder/findByProduct in the deployment descriptor. The EJB QL for findByOrder would look like:
select Object o from Line where o.order_no = ?1If you use BMP, you would code the findByPrimaryKey implementation like this:
public LinePK ejbFindByPrimaryKey(LinePK pk) throws FinderException {
String sql = "select order_no from line_table where line_no=? and order_no=?";
InitialContext ic = new InitialContext();
Object obj = ic.lookup("datasourcename");
DataSource ds = (DataSource)PortableRemoteObject.narrow(obj, DataSource.class);
Connection conn = ds.getConnection();
try {
PreparedStatement stmt = conn.prepareStatement(sql);
try {
stmt.setInteger(1, pk.line_no);
stmt.setInteger(2, pk.order_no);
ResultSet rs = stmt.executeQuery();
if (!rs.next())
throw new ObjectNotFoundException("not found: " + order_no + "." + line_no);
return pk;
finally {
stmt.close();
finally {
conn.close(); -
How to make a session bean interact with a entity bean?
hi,
An entity bean has been created and tested successfully. Values entered into the test app are successfully entered into the pointbase db.
Now trying to create the same feature through session beans. when the method is invoked, it appears ok, but when the database is queried the values have not been entered. Is there anything that could have been missed or incorrect?
the steps to setting up session bean
1)add code to create for JNDI lookup
public void ejbCreate() {
System.out.println("Entering oneManagerEJB.ejbCreate()");
Context c = null;
Object result = null;
if (this.myoneHome == null) {
try {
c = new InitialContext();
result =
c.lookup("java:comp/env/ejb/one");
myoneHome =
(oneHome)javax.rmi.PortableRemoteObject.narrow(result,
oneHome.class);
catch (Exception e) {System.out.println("Error: "+
e); }
2) add business method to enter values into entity bean
public void createone(int number) {
System.out.println("Entering ");
try {
one oneinfo =
myoneHome.create(number);
} catch (Exception e) {
// Join the following two lines in the Source Editor
System.out.println("Error in " + e);
// Join the following two lines in the Source Editor
System.out.println("Leaving ");
3) declare variables and namings
import javax.naming.*;
private oneHome myoneHome;
4) add reference to logical session bean
ejb/one
5) create test app and add entity bean "one" to module. check mappings.
run appI would do several things which will help track down the problem:
1. Where you have println statements you may want to change these to exceptions, the session bean won't really work if these problems occur and may silently fail. For example, throw a runtime exeption or EJBException to indicate that the entity bean home interface cannot be found.
2. When you create the test application you should replace the ejb module which is automatically created with the ejb module or module(s) containing both of the ejb's. This will ensure that the configuration is preserved. The test application is a standard J2EE application, so modules can be added (you could even have multiple test applications each testing a different ejb, make sure that you use different context roots).
Chris -
How set diff. timeouts for entity beans?
How do i set diff. timeouts for diff. entity beans? Is it in the ejb-jar.xml file? Is this refreshed every time it is accesses?
Hi there,
Although not familiar with all of the App servers on the market, I'd say that you are unlikely to find a timeout value for Entity Beans. Passivation of Entity beans is normally a function of the commit options supported by a specific App server. For example, with Commit Option C an entity bean instance should always be returned to the instance pool after a transaction has completed. You can find details of the various commit options in the EJB specification which you can view or download from:
http://java.sun.com/products/ejb/docs.html
Hope this helps
Amanda
Developer Technical Support
Sun Microsystems
http://www.sun.com/developers -
Weblogic 5.1 SP4 Hangs in stress test
Hi,
I am trying to stress test my application. I am using
Weblogic 5.1 SP4 JDK 1.2.2 on Windows NT.
The stress test client creates 20 threads and makes
simultaneous requests to the Weblogic Server. This hangs the
server completely. I am not able to ping the server, attach to it
via Weblogic console or anything else.
The relevant parameters are
weblogic.system.executeThreadCount=15
weblogic.system.nativeIO.enable=true
The thread dump shows all the threads trying in read (socket).
I have attached the thread dump. I would really appreciate if
someone can explain WHY Weblogic is hanging and how do I fix
this problem.
Thanks,
Mihir
Full thread dump Classic VM (JDK-1.2.2-W, native threads):
"ListenThread" (TID:0xdfe7a0, sys_thread_t:0xafbe70, state:R, native
ID:0x13
0) prio=5
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
at java.net.ServerSocket.implAccept(ServerSocket.java:240)
at java.net.ServerSocket.accept(ServerSocket.java:224)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:277)
"ExecuteThread-14" (TID:0xdeff90, sys_thread_t:0x9e0de0, state:R, native
ID:
0x142) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-13" (TID:0xdefe10, sys_thread_t:0x9e0c80, state:R, native
ID:
0x106) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-12" (TID:0xdefcb8, sys_thread_t:0x9e0b20, state:R, native
ID:
0xac) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-11" (TID:0xdefb80, sys_thread_t:0x9e09c0, state:R, native
ID:
0x49) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-10" (TID:0xdefa00, sys_thread_t:0x9e0860, state:R, native
ID:
0x139) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-9" (TID:0xdef8a8, sys_thread_t:0x9e0700, state:R, native
ID:0
x12c) prio=5
at weblogic.socket.NTSocketMuxer.getNextSocket(Native Method)
at
weblogic.socket.NTSocketMuxer.processSockets(NTSocketMuxer.java:326)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:
23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-8" (TID:0xdef770, sys_thread_t:0x9e05a0, state:R, native
ID:0
x11f) prio=5
at weblogic.socket.NTSocketMuxer.getNextSocket(Native Method)
at
weblogic.socket.NTSocketMuxer.processSockets(NTSocketMuxer.java:326)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:
23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-7" (TID:0xdef5f8, sys_thread_t:0x9e0440, state:R, native
ID:0
x160) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-6" (TID:0xdef4a0, sys_thread_t:0x9e02e0, state:R, native
ID:0
x13e) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-5" (TID:0xdef340, sys_thread_t:0x9e0180, state:R, native
ID:0
x15b) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-4" (TID:0xdef1f0, sys_thread_t:0x9dfa30, state:R, native
ID:0
x155) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-3" (TID:0xdef098, sys_thread_t:0x9df530, state:R, native
ID:0
x16c) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:90)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:190)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:229)
at java.io.BufferedInputStream.read(BufferedInputStream.java:285)
at java.io.FilterInputStream.read(FilterInputStream.java:118)
at java.io.PushbackInputStream.read(PushbackInputStream.java:168)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
at com.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-2" (TID:0xdeef50, sys_thread_t:0x9df200, state:R, native
ID:0
x16b) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInpHi Sam,
I've experienced deadlocking socket problems from my entity beans before,
except in my app I created my own HttpConnections. And like you said,
increasing the threads only temporarily solves the problem until the
requests scale up again... However, your solution, reading file from the
file system, doesn't seem much safer either, for according to ejb specs one
should not use java.io!
If I were to grab my connections from a Connection Factory registered in
weblogic.properties, will this alleviate the deadlocks? Is there a Weblogic
implementation for File ResourceBundle?
Gene Chuang
Teach the world. Join Kiko!
http://www.kiko.com/profile/join.jsp?refcode=TAF-gchuang
"WebLogic" <[email protected]> wrote in message
news:[email protected]...
Since Xerces is trying to open connections back to the server you are
running xerces in you are seeing
a classic deadlock condition. All of the execute threads are being usedup
by xereces waiting to read
a file that requires an execute thread to be available. You can try
increasing the number of threads, however,
it is difficult to avoid this problem when you are making loopback
connections. I suggest that you write
an entity resolver that does not make http connections back to the same
server, instead it would read the
file from the file system so that you cannot get in this deadlocksituation.
>
Sam
"Mihir Mehta" <[email protected]> wrote in message
news:[email protected]...
It does not look like a Xerces problem as all the threads that are
reading
the posted data are runnable.
Mihir
"Gene Chuang" <[email protected]> wrote in message
news:[email protected]...
Possibly a Xerces problem? Which version are u using?
Gene Chuang
Teach the world. Join Kiko!
http://www.kiko.com/profile/join.jsp?refcode=TAF-gchuang
"Mihir Mehta" <[email protected]> wrote in message
news:[email protected]...
Hi,
I am trying to stress test my application. I am using
Weblogic 5.1 SP4 JDK 1.2.2 on Windows NT.
The stress test client creates 20 threads and makes
simultaneous requests to the Weblogic Server. This hangs the
server completely. I am not able to ping the server, attach to it
via Weblogic console or anything else.
The relevant parameters are
weblogic.system.executeThreadCount=15
weblogic.system.nativeIO.enable=true
The thread dump shows all the threads trying in read (socket).
I have attached the thread dump. I would really appreciate if
someone can explain WHY Weblogic is hanging and how do I fix
this problem.
Thanks,
Mihir
Full thread dump Classic VM (JDK-1.2.2-W, native threads):
"ListenThread" (TID:0xdfe7a0, sys_thread_t:0xafbe70, state:R,
native
ID:0x13
0) prio=5
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
at java.net.ServerSocket.implAccept(ServerSocket.java:240)
at java.net.ServerSocket.accept(ServerSocket.java:224)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:277)
"ExecuteThread-14" (TID:0xdeff90, sys_thread_t:0x9e0de0,
state:R,
native
ID:
0x142) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-13" (TID:0xdefe10, sys_thread_t:0x9e0c80,state:R,
native
ID:
0x106) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-12" (TID:0xdefcb8, sys_thread_t:0x9e0b20,state:R,
native
ID:
0xac) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-11" (TID:0xdefb80, sys_thread_t:0x9e09c0,state:R,
native
ID:
0x49) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-10" (TID:0xdefa00, sys_thread_t:0x9e0860,state:R,
native
ID:
0x139) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-9" (TID:0xdef8a8, sys_thread_t:0x9e0700, state:R,native
ID:0
x12c) prio=5
at weblogic.socket.NTSocketMuxer.getNextSocket(Native
Method)
at
weblogic.socket.NTSocketMuxer.processSockets(NTSocketMuxer.java:326)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:
23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-8" (TID:0xdef770, sys_thread_t:0x9e05a0, state:R,native
ID:0
x11f) prio=5
at weblogic.socket.NTSocketMuxer.getNextSocket(Native
Method)
at
weblogic.socket.NTSocketMuxer.processSockets(NTSocketMuxer.java:326)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:
23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-7" (TID:0xdef5f8, sys_thread_t:0x9e0440, state:R,native
ID:0
x160) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-6" (TID:0xdef4a0, sys_thread_t:0x9e02e0, state:R,native
ID:0
x13e) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentS
canner.java:380)
atorg.apache.xerces.framework.XMLParser.parse(XMLParser.java:861)
at
com.mycompanyxml.MyXMLDocument.createDocument(MyXMLDocument.java:125)
>>>>
atcom.mycompanyxml.MyXMLDocument.<init>(MyXMLDocument.java:86)
at
com.mycompanyintegration.servlet.MyCompanyXMLCmdServlet.doPost(MyCompanyXMLC
m
dServlet.java:65)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:772)
atjavax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:124)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:744)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
textImpl.java:692)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
ContextManager.java:251)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
a:363)
at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
>>>>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
"ExecuteThread-5" (TID:0xdef340, sys_thread_t:0x9e0180, state:R,native
ID:0
x15b) prio=5
at java.net.SocketInputStream.socketRead(Native Method)
at
java.net.SocketInputStream.read(SocketInputStream.java:90)
atjava.io.BufferedInputStream.fill(BufferedInputStream.java:190)
atjava.io.BufferedInputStream.read1(BufferedInputStream.java:229)
atjava.io.BufferedInputStream.read(BufferedInputStream.java:285)
at
java.io.FilterInputStream.read(FilterInputStream.java:118)
atjava.io.PushbackInputStream.read(PushbackInputStream.java:168)
at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:516)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:466)
at java.net.URL.openStream(URL.java:818)
at
org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultRe
aderFactory.java:149)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alEntity(DefaultEntityHandler.java:747)
at
org.apache.xerces.readers.DefaultEntityHandler.startReadingFromExtern
alSubset(DefaultEntityHandler.java:566)
at
org.apache.xerces.framework.XMLDTDScanner.scanDoctypeDecl(XMLDTDScann
er.java:1131)
at
org.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDoc
umentScanner.java:2177)
at
org.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentSc
anner.java:2133)
at
org.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispa
tch(XMLDocumentScanner.java:882)
at
org.apache.xerces.framewor -
Weblogic server hangs during stress-testing -- possibly EJB deadlocks
Hi
While running stress tests on our application, our WLS 4.5.1 hangs even at a
mere load of 20 users. We are running on a Solaris machine. Database: Oracle
8.1.5, running on the same machine. Using oracle.jdbc.driver.OracleDriver as
the JDBC driver, and using JTS as the transaction manager.
When we did a thread dump (complete lis at the end of this post) and
basically we are seeing a bunch of our entity beans in a "locked" state. A
common pattern we see in the thread dumps is that
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.organization.<Our Entiy Bean>EOImpl.<a get
method>(ERSSystemConfigurationBeanEOImpl.java:1539)
[6] com.nps.ers.ejb.awardnomination.<Our entity bean>.<some method>
After more thorough studying of EJB transactions, we changed the isolation
level of all our beans from TRANSACTION_SERIALIZED to
TRANSACTION_READ_COMMITTED and made sure all our beans say TX_REQUIRED for
their transactionAttribue. Still, this problem persists.
The basic scenario we are load testing is that of multiple users logging
into the system and trying to access a particular user's record, and right
now, this is causing deadlocks at 20 users.
What we fail to understand is that --
(a) even if a method is attempting a read-only access to the data, why would
it try to obtain a lock? or why would it matter that the data is locked?
Some of the locks we are seeing are actually on a bean that is used for
read-only purposes.
(b) if 2 or more processes are trying to access the same record, based on
whichever process got their first, shouldn't one succeed, and the other go
into a 'waiting' state?
We have also opened this issue with weblogic support, and the response so
far has been that there "may" be a bug in weblogic 4.5.1 itself that's
causing it, and they need to look into it further. Other similar posts in
the newsgroup haven't been resolved either -- hence this general plea for
help. Please advise if you've any suggestions. Thanks
Sandeep
---------------------------Complete Thread Dump Listing -------------------
"HighPriority TimeEventGenerator" (TID:0x1488278, sys_thread_t:0x14881b8,
state:CW, thread_t: t@46, threadID:0xd9271dc8, stack_bottom:0xd9272000,
stack_size:0x20000) prio=9
[1] weblogic.time.common.internal.TimeTable.snooze(TimeTable.java:249)
[2]
weblogic.time.common.internal.TimeEventGenerator.run(TimeEventGenerator.java
:143)
[3] java.lang.Thread.run(Thread.java:479)
"SSLListenThread" (TID:0x1588220, sys_thread_t:0x1588160, state:R, thread_t:
t@45, threadID:0xd9321dc8, stack_bottom:0xd9322000, stack_size:0x20000)
prio=5
[1] java.net.PlainSocketImpl.socketAccept(Native Method)
[2] java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
[3] java.net.ServerSocket.implAccept(ServerSocket.java:240)
[4] java.net.ServerSocket.accept(ServerSocket.java:224)
[5]
weblogic.security.SSL.SSLServerSocket.acceptNoHandshake(SSLServerSocket.java
:121)
[6] weblogic.security.SSL.SSLServerSocket.accept(SSLServerSocket.java:112)
[7] weblogic.t3.srvr.ListenThread.run(ListenThread.java:230)
"ListenThread" (TID:0x15f7d48, sys_thread_t:0x15f7c88, state:R, thread_t:
t@44, threadID:0xd92a1dc8, stack_bottom:0xd92a2000, stack_size:0x20000)
prio=5
[1] java.net.PlainSocketImpl.socketAccept(Native Method)
[2] java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
[3] java.net.ServerSocket.implAccept(ServerSocket.java:238)
[4] java.net.ServerSocket.accept(ServerSocket.java:223)
[5] weblogic.t3.srvr.ListenThread.run(ListenThread.java:230)
"ExecuteThread-29" (TID:0xad1c90, sys_thread_t:0xad1bd0, state:CW, thread_t:
t@40, threadID:0xd94e1dc8, stack_bottom:0xd94e2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.user.UserBeanEOImpl.display(UserBeanEOImpl.java:1384)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.updatePointsUsed(AwardNo
minationBean.java:1530)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBean.nominate(AwardNomination
Bean.java:1279)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.nominate(AwardNomi
nationBeanEOImpl.java:282)
[9]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.nomina
te(AwardNominationBeanEOImpl_ServiceStub.java:811)
[10]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[11]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[12]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[13] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[14] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[16] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[17]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[19]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[20]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[21] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[22] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-28" (TID:0xad1a78, sys_thread_t:0xad19b8, state:CW, thread_t:
t@39, threadID:0xd9511dc8, stack_bottom:0xd9512000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-27" (TID:0xad1678, sys_thread_t:0xad15b8, state:CW, thread_t:
t@38, threadID:0xd9541dc8, stack_bottom:0xd9542000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-26" (TID:0xac84e8, sys_thread_t:0xac8428, state:CW, thread_t:
t@37, threadID:0xd9571dc8, stack_bottom:0xd9572000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-25" (TID:0xab7d50, sys_thread_t:0xab7c90, state:CW, thread_t:
t@36, threadID:0xd95a1dc8, stack_bottom:0xd95a2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-24" (TID:0xab9b60, sys_thread_t:0xab9aa0, state:CW, thread_t:
t@35, threadID:0xd95d1dc8, stack_bottom:0xd95d2000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-23" (TID:0xab9948, sys_thread_t:0xab9888, state:CW, thread_t:
t@34, threadID:0xd9601dc8, stack_bottom:0xd9602000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.user.UserBeanEOImpl.getUserId(UserBeanEOImpl.java:182)
[6]
com.nps.ers.ejb.login.LoginSessionBean.getUserStatus(LoginSessionBean.java:1
61)
[7]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl.getUserStatus(LoginSessionBeanE
OImpl.java:212)
[8]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl_ServiceStub.getUserStatus(Login
SessionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.LoginRequest.processLoginRequest(LoginRequest.java:248)
[10] com.nps.ers.servlet.LoginRequest.getNextPage(LoginRequest.java:90)
[11] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[12] com.nps.common.servlet.BaseServlet.doGet(BaseServlet.java:124)
[13] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[15]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[16]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[18]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[19] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[20] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-22" (TID:0xabcc20, sys_thread_t:0xabcb60, state:CW, thread_t:
t@33, threadID:0xd9631dc8, stack_bottom:0xd9632000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-21" (TID:0xa9ccf0, sys_thread_t:0xa9cc30, state:CW, thread_t:
t@32, threadID:0xd9661dc8, stack_bottom:0xd9662000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-20" (TID:0xab2550, sys_thread_t:0xab2490, state:R, thread_t:
t@31, threadID:0xd9691dc8, stack_bottom:0xd9692000, stack_size:0x20000)
prio=5
[1] java.net.SocketInputStream.socketRead(Native Method)
[2] java.net.SocketInputStream.read(SocketInputStream.java:85)
[3] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[4] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[5] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-19" (TID:0xa640c0, sys_thread_t:0xa64000, state:CW, thread_t:
t@30, threadID:0xd96c1dc8, stack_bottom:0xd96c2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.user.UserBeanEOImpl.display(UserBeanEOImpl.java:1384)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.updatePointsUsed(AwardNo
minationBean.java:1530)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBean.nominate(AwardNomination
Bean.java:1279)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.nominate(AwardNomi
nationBeanEOImpl.java:282)
[9]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.nomina
te(AwardNominationBeanEOImpl_ServiceStub.java:811)
[10]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[11]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[12]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[13] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[14] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[16] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[17]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[19]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[20]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[21] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[22] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-18" (TID:0xa502d8, sys_thread_t:0xa50218, state:CW, thread_t:
t@29, threadID:0xd96f1dc8, stack_bottom:0xd96f2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getCashWithinD
ays(ERSSystemConfigurationBeanEOImpl.java:1231)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.getAwardNominationNotifi
cationStates(AwardNominationBean.java:772)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.getAwardNomination
NotificationStates(AwardNominationBeanEOImpl.java:247)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.getAwa
rdNominationNotificationStates(AwardNominationBeanEOImpl_ServiceStub.java:41
5)
[9]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[10]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[11]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[12] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[13] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[16]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[19]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[20] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[21] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-17" (TID:0xa242d8, sys_thread_t:0xa24218, state:CW, thread_t:
t@28, threadID:0xd9721dc8, stack_bottom:0xd9722000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.user.UserBeanEOImpl.getUserStatusCode(UserBeanEOImpl.java:22
77)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.getApprovers(ApproverS
electionBean.java:352)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.getApprovers(App
roverSelectionBeanEOImpl.java:140)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.getA
pprovers(ApproverSelectionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.ApproverSelection.getApproverList(ApproverSelection.java
:81)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-16" (TID:0xaa0ed8, sys_thread_t:0xaa0e18, state:CW, thread_t:
t@27, threadID:0xd9751dc8, stack_bottom:0xd9752000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-15" (TID:0xad0220, sys_thread_t:0xad0160, state:CW, thread_t:
t@26, threadID:0xd9781dc8, stack_bottom:0xd9782000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.user.UserBeanEOImpl.getUserId(UserBeanEOImpl.java:182)
[6]
com.nps.ers.ejb.login.LoginSessionBean.getUserStatus(LoginSessionBean.java:1
61)
[7]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl.getUserStatus(LoginSessionBeanE
OImpl.java:212)
[8]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl_ServiceStub.getUserStatus(Login
SessionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.LoginRequest.processLoginRequest(LoginRequest.java:248)
[10] com.nps.ers.servlet.LoginRequest.getNextPage(LoginRequest.java:90)
[11] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[12] com.nps.common.servlet.BaseServlet.doGet(BaseServlet.java:124)
[13] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[15]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[16]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[18]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[19] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[20] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-14" (TID:0xa8f4c0, sys_thread_t:0xa8f400, state:CW, thread_t:
t@25, threadID:0xd97b1dc8, stack_bottom:0xd97b2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2] weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4] weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getCashWithinD
ays(ERSSystemConfigurationBeanEOImpl.java:1231)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.getAwardNominationNotifi
cationStates(AwardNominationBean.java:772)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.getAwardNomination
NotificationStates(AwardNominationBeanEOImpl.java:247)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.getAwa
rdNominationNotificationStates(AwardNominationBeanEOImpl_ServiceStub.java:41
5)
[9]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[10]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[11]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[12] com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[13] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[16]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[19]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[20] weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[21] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-13" (TID:0xa194f0, sys_thread_t:0xa19430, state:CW, thread_t:
t@24, threadID:0xd97e1dc8, stack_bottom:0xd97e2000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2] weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3] weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ECan you post details on this instrumentation?
I know in the past when we ran into this type of problem, it took us a while
to think through and identify the problems.
Thanks,
Gary
Rob Woollen <[email protected]> wrote in message
news:[email protected]...
Generally this indicates a deadlock in the order that you access your
entity beans. Please follow-up with [email protected]. There is
some instrumentation that you can turn on to help spot why this is
occurring.
-- Rob
Sandeep Giri wrote:
Hi
While running stress tests on our application, our WLS 4.5.1 hangs even
at a
mere load of 20 users. We are running on a Solaris machine. Database:Oracle
8.1.5, running on the same machine. Usingoracle.jdbc.driver.OracleDriver as
the JDBC driver, and using JTS as the transaction manager.
When we did a thread dump (complete lis at the end of this post) and
basically we are seeing a bunch of our entity beans in a "locked" state.A
common pattern we see in the thread dumps is that
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5] com.nps.ers.ejb.organization.<Our Entiy Bean>EOImpl.<a get
method>(ERSSystemConfigurationBeanEOImpl.java:1539)
[6] com.nps.ers.ejb.awardnomination.<Our entity bean>.<some method>
After more thorough studying of EJB transactions, we changed theisolation
level of all our beans from TRANSACTION_SERIALIZED to
TRANSACTION_READ_COMMITTED and made sure all our beans say TX_REQUIREDfor
their transactionAttribue. Still, this problem persists.
The basic scenario we are load testing is that of multiple users logging
into the system and trying to access a particular user's record, andright
now, this is causing deadlocks at 20 users.
What we fail to understand is that --
(a) even if a method is attempting a read-only access to the data, whywould
it try to obtain a lock? or why would it matter that the data is locked?
Some of the locks we are seeing are actually on a bean that is used for
read-only purposes.
(b) if 2 or more processes are trying to access the same record, basedon
whichever process got their first, shouldn't one succeed, and the othergo
into a 'waiting' state?
We have also opened this issue with weblogic support, and the responseso
far has been that there "may" be a bug in weblogic 4.5.1 itself that's
causing it, and they need to look into it further. Other similar postsin
the newsgroup haven't been resolved either -- hence this general pleafor
help. Please advise if you've any suggestions. Thanks
Sandeep
---------------------------Complete Thread DumpListing -------------------
>>
"HighPriority TimeEventGenerator" (TID:0x1488278,sys_thread_t:0x14881b8,
state:CW, thread_t: t@46, threadID:0xd9271dc8, stack_bottom:0xd9272000,
stack_size:0x20000) prio=9
[1] weblogic.time.common.internal.TimeTable.snooze(TimeTable.java:249)
[2]
weblogic.time.common.internal.TimeEventGenerator.run(TimeEventGenerator.java
:143)
[3] java.lang.Thread.run(Thread.java:479)
"SSLListenThread" (TID:0x1588220, sys_thread_t:0x1588160, state:R,thread_t:
t@45, threadID:0xd9321dc8, stack_bottom:0xd9322000, stack_size:0x20000)
prio=5
[1] java.net.PlainSocketImpl.socketAccept(Native Method)
[2] java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
[3] java.net.ServerSocket.implAccept(ServerSocket.java:240)
[4] java.net.ServerSocket.accept(ServerSocket.java:224)
[5]
weblogic.security.SSL.SSLServerSocket.acceptNoHandshake(SSLServerSocket.java
:121)
[6]weblogic.security.SSL.SSLServerSocket.accept(SSLServerSocket.java:112)
[7] weblogic.t3.srvr.ListenThread.run(ListenThread.java:230)
"ListenThread" (TID:0x15f7d48, sys_thread_t:0x15f7c88, state:R,thread_t:
t@44, threadID:0xd92a1dc8, stack_bottom:0xd92a2000, stack_size:0x20000)
prio=5
[1] java.net.PlainSocketImpl.socketAccept(Native Method)
[2] java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
[3] java.net.ServerSocket.implAccept(ServerSocket.java:238)
[4] java.net.ServerSocket.accept(ServerSocket.java:223)
[5] weblogic.t3.srvr.ListenThread.run(ListenThread.java:230)
"ExecuteThread-29" (TID:0xad1c90, sys_thread_t:0xad1bd0, state:CW,thread_t:
t@40, threadID:0xd94e1dc8, stack_bottom:0xd94e2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]com.nps.ers.ejb.user.UserBeanEOImpl.display(UserBeanEOImpl.java:1384)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.updatePointsUsed(AwardNo
minationBean.java:1530)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBean.nominate(AwardNomination
Bean.java:1279)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.nominate(AwardNomi
nationBeanEOImpl.java:282)
[9]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.nomina
te(AwardNominationBeanEOImpl_ServiceStub.java:811)
[10]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[11]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[12]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[13]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[14] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[16] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[17]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[19]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[20]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[21]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[22] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-28" (TID:0xad1a78, sys_thread_t:0xad19b8, state:CW,thread_t:
t@39, threadID:0xd9511dc8, stack_bottom:0xd9512000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-27" (TID:0xad1678, sys_thread_t:0xad15b8, state:CW,thread_t:
t@38, threadID:0xd9541dc8, stack_bottom:0xd9542000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-26" (TID:0xac84e8, sys_thread_t:0xac8428, state:CW,thread_t:
t@37, threadID:0xd9571dc8, stack_bottom:0xd9572000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2]weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3]weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-25" (TID:0xab7d50, sys_thread_t:0xab7c90, state:CW,thread_t:
t@36, threadID:0xd95a1dc8, stack_bottom:0xd95a2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-24" (TID:0xab9b60, sys_thread_t:0xab9aa0, state:CW,thread_t:
t@35, threadID:0xd95d1dc8, stack_bottom:0xd95d2000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2]weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3]weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-23" (TID:0xab9948, sys_thread_t:0xab9888, state:CW,thread_t:
t@34, threadID:0xd9601dc8, stack_bottom:0xd9602000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]com.nps.ers.ejb.user.UserBeanEOImpl.getUserId(UserBeanEOImpl.java:182)
[6]
com.nps.ers.ejb.login.LoginSessionBean.getUserStatus(LoginSessionBean.java:1
61)
[7]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl.getUserStatus(LoginSessionBeanE
OImpl.java:212)
[8]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl_ServiceStub.getUserStatus(Login
SessionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.LoginRequest.processLoginRequest(LoginRequest.java:248)
[10] com.nps.ers.servlet.LoginRequest.getNextPage(LoginRequest.java:90)
[11]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[12] com.nps.common.servlet.BaseServlet.doGet(BaseServlet.java:124)
[13] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[15]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[16]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[18]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[19]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[20] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-22" (TID:0xabcc20, sys_thread_t:0xabcb60, state:CW,thread_t:
t@33, threadID:0xd9631dc8, stack_bottom:0xd9632000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getEMTRoleId(E
RSSystemConfigurationBeanEOImpl.java:1539)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.checkEMT(ApproverSelec
tionBean.java:473)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.checkEMT(Approve
rSelectionBeanEOImpl.java:71)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.chec
kEMT(ApproverSelectionBeanEOImpl_ServiceStub.java:501)
[9]
com.nps.ers.servlet.NortelApproverSelection.updateApproverList(NortelApprove
rSelection.java:87)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-21" (TID:0xa9ccf0, sys_thread_t:0xa9cc30, state:CW,thread_t:
t@32, threadID:0xd9661dc8, stack_bottom:0xd9662000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2]weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3]weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-20" (TID:0xab2550, sys_thread_t:0xab2490, state:R,thread_t:
t@31, threadID:0xd9691dc8, stack_bottom:0xd9692000, stack_size:0x20000)
prio=5
[1] java.net.SocketInputStream.socketRead(Native Method)
[2] java.net.SocketInputStream.read(SocketInputStream.java:85)
[3]weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[4]weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[5] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-19" (TID:0xa640c0, sys_thread_t:0xa64000, state:CW,thread_t:
t@30, threadID:0xd96c1dc8, stack_bottom:0xd96c2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]com.nps.ers.ejb.user.UserBeanEOImpl.display(UserBeanEOImpl.java:1384)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.updatePointsUsed(AwardNo
minationBean.java:1530)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBean.nominate(AwardNomination
Bean.java:1279)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.nominate(AwardNomi
nationBeanEOImpl.java:282)
[9]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.nomina
te(AwardNominationBeanEOImpl_ServiceStub.java:811)
[10]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[11]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[12]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[13]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[14] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[16] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[17]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[19]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[20]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[21]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[22] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-18" (TID:0xa502d8, sys_thread_t:0xa50218, state:CW,thread_t:
t@29, threadID:0xd96f1dc8, stack_bottom:0xd96f2000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.organization.ERSSystemConfigurationBeanEOImpl.getCashWithinD
ays(ERSSystemConfigurationBeanEOImpl.java:1231)
[6]
com.nps.ers.ejb.awardnomination.AwardNominationBean.getAwardNominationNotifi
cationStates(AwardNominationBean.java:772)
[7]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl.getAwardNomination
NotificationStates(AwardNominationBeanEOImpl.java:247)
[8]
com.nps.ers.ejb.awardnomination.AwardNominationBeanEOImpl_ServiceStub.getAwa
>>
rdNominationNotificationStates(AwardNominationBeanEOImpl_ServiceStub.java:41
5)
[9]
com.nps.ers.servlet.AwardNominationRequest.nominate(AwardNominationRequest.j
ava:1339)
[10]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[11]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[12]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[13] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[14] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[15] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[16]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[17]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[18]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[19]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[20]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[21] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-17" (TID:0xa242d8, sys_thread_t:0xa24218, state:CW,thread_t:
t@28, threadID:0xd9721dc8, stack_bottom:0xd9722000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]
com.nps.ers.ejb.user.UserBeanEOImpl.getUserStatusCode(UserBeanEOImpl.java:22
77)
[6]
com.nps.ers.ejb.awardnomination.ApproverSelectionBean.getApprovers(ApproverS
electionBean.java:352)
[7]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl.getApprovers(App
roverSelectionBeanEOImpl.java:140)
[8]
com.nps.ers.ejb.awardnomination.ApproverSelectionBeanEOImpl_ServiceStub.getA
pprovers(ApproverSelectionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.ApproverSelection.getApproverList(ApproverSelection.java
:81)
[10]
com.nps.ers.servlet.NortelApproverSelection.getApproverList(NortelApproverSe
lection.java:62)
[11]
com.nps.ers.servlet.AwardNominationRequest.getApprovers(AwardNominationReque
st.java:1412)
[12]
com.nps.ers.servlet.AwardNominationRequest.previewNominate(AwardNominationRe
quest.java:1096)
[13]
com.nps.ers.servlet.AwardNominationRequest.processNextPage(AwardNominationRe
quest.java:276)
[14]
com.nps.ers.servlet.AwardNominationRequest.getNextPage(AwardNominationReques
t.java:109)
[15]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[16] com.nps.common.servlet.BaseServlet.doPost(BaseServlet.java:184)
[17] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[18] javax.servlet.http.HttpServlet.service(HttpServlet.java:835)
[19]
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:75)
[20]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:259)
[21]
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:244)
[22]
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:353)
[23]weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:247)
[24] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-16" (TID:0xaa0ed8, sys_thread_t:0xaa0e18, state:CW,thread_t:
t@27, threadID:0xd9751dc8, stack_bottom:0xd9752000, stack_size:0x20000)
prio=5
[1] weblogic.common.internal.DynaQueue.getW(DynaQueue.java:219)
[2]weblogic.socket.JavaSocketMuxer.processSockets(JavaSocketMuxer.java:212)
[3]weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:19)
[4] weblogic.t3.srvr.ExecuteThread.run(ExecuteThread.java:94)
"ExecuteThread-15" (TID:0xad0220, sys_thread_t:0xad0160, state:CW,thread_t:
t@26, threadID:0xd9781dc8, stack_bottom:0xd9782000, stack_size:0x20000)
prio=5
[1] weblogic.ejb.internal.BaseEJBContext.lock(BaseEJBContext.java:180)
[2]weblogic.ejb.internal.StatefulEJBCache.bind(StatefulEJBCache.java:250)
[3]
weblogic.ejb.internal.StatefulEJBObject.getContextForInvoke(StatefulEJBObjec
t.java:88)
[4]weblogic.ejb.internal.BaseEJBObject.preInvoke(BaseEJBObject.java:164)
[5]com.nps.ers.ejb.user.UserBeanEOImpl.getUserId(UserBeanEOImpl.java:182)
[6]
com.nps.ers.ejb.login.LoginSessionBean.getUserStatus(LoginSessionBean.java:1
61)
[7]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl.getUserStatus(LoginSessionBeanE
OImpl.java:212)
[8]
com.nps.ers.ejb.login.LoginSessionBeanEOImpl_ServiceStub.getUserStatus(Login
SessionBeanEOImpl_ServiceStub.java:554)
[9]
com.nps.ers.servlet.LoginRequest.processLoginRequest(LoginRequest.java:248)
[10] com.nps.ers.servlet.LoginRequest.getNextPage(LoginRequest.java:90)
[11]com.nps.common.servlet.BaseServlet.handleRequest(BaseServlet.java:245)
[12] com.nps.common.servlet.BaseServlet.doGet(BaseServlet.java:124)
[13] javax.servlet.http.HttpServlet.service(HttpServlet.java:708)
[14 -
Object locking of entity bean in a SSBean[Environment: WebLogic 10.0, EJB3.0, Kodo/OpenJPA]
Hello friends,
I am facing bottle neck with Object Locking for an Entity bean using OpenJPA Persistence Manager under Weblogic 10.0 application server deployments.
I want to block [ for the specific method ] entity bean being accessed from other client programs when they invoke common method in a Stateless Session EJB. Particularly, Consider the situation:
Client1: Modifying Customer entity with id: 100. Then I locked that entity using OpenJPA Entity Manager within the transaction block. And i entered that thread to sleep before committing the transaction.
At this time, started new thread, Client2: Modifying the same Customer entity with id:100. I expected this thread will be get blocked when control pass to the lock() method. But it doesn't happened. It goes through the line of codes and also put into sleep.
After thread sleep timeout, first thread Client1 commit successfully. But the second gets Rollback Exception due to optimistic lock exception occurring since customer entity is modified in another transaction.
This exception is occurred because of Database level concurrency control for optimistic locking in a weblogic server. Its default to weblogic.
But, what i expected is to assert lock at the object level, thereby the 2nd thread - Client2 will be blocked while Client1 is in the middle of a transaction and then Client2 use modified Customer entity . But it doesn't happened. I used Kodo Persistance Provider as Persistence Unit, OpenJPAEntityManager to do transaction, locking , finding and merging the entity bean.
Can anyone provide help to fine grain this object locking functionality ??? I look forward to your brilliant thoughts......
Rajesh KR
Geojit TechnologiesDear Chicon,
I made thread to sleep for checking the "Object Locking" functionality of OpenJPAEntityManager. My intention was to block the second thread when the first thread being locked when a concurrent access occurs. But it doesn't happened and code execution passed to thread sleep.
I mean when 2 client access the same entity at same time (in same milliseconds) , and what happens to 2nd thread when 1st thread locks the entity object.
I guarantee you that i started the 2nd thread before the 4sec time stamp given to the object locking. I tested it with a bigger timestamp, still it given concurrent blocking of the same entity bean.
My question is why the object locking is not working with concurrent access to same entity bean from more than one thread???
I think you get the correct question what i intended ????
Regards,
Raj... -
Error in weblogic.ejbc while deploying the CMP entity bean.!!!
Tried to deploy the entity bean[CMP] with the following folder structure.
examples [package]
Product.class
productBean.class
etc.
META-INF
ejb-jar.xml
weblogic-ejb-jar.xml.
weblogic-cmp-rdbms-jar.xml
created a jar..with the following command
1.jar cvf rgegcmp.jar examples META-INF
tried to create the stubs and skeletons using weblogic.ejbc command.
2. java weblogic.ejbc rgegcmp.jar rgegcmp1.jar
C:\btcomprj\BTCOMPRJ\classes>java weblogic.ejbc rgegcmp.jar rgegcmp1.jar
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.ProductBean which is in
the classpath. This class should only be located in the ejb-jar file.>
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.ProductHome which is in
the classpath. This class should only be located in the ejb-jar file.>
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.Product which is in the
classpath. This class should only be located in the ejb-jar file.>
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.ProductLocalHome which i
s in the classpath. This class should only be located in the ejb-jar file.>
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.ProductLocal which is in
the classpath. This class should only be located in the ejb-jar file.>
<Oct 11, 2004 4:29:29 PM IST> <Warning> <EJB> <010054> <EJB Deployment: Product has a
class examples.ProductPK which is in th
e classpath. This class should only be located in the ejb-jar file.>
ERROR: Error from ejbc: null
java.lang.NullPointerException
at
weblogic.ejb20.deployer.CompositeMBeanDescriptor.getPersistenceUseIdentifier(Composite
MBeanDescriptor.java:1484)
at weblogic.ejb20.deployer.CMPInfoImpl.<init>(CMPInfoImpl.java:104)
at
weblogic.ejb20.deployer.EntityBeanInfoImpl.<init>(EntityBeanInfoImpl.java:135)
at
weblogic.ejb20.deployer.BeanInfoImpl.createBeanInfoImpl(BeanInfoImpl.java:349)
at
weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBeanInfos(MBeanDeploymentInf
oImpl.java:438)
at
weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>(MBeanDeploymentInfoImpl.java:16
5)
at weblogic.ejb20.ejbc.EJBCompiler.setupEJB(EJBCompiler.java:151)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:332)
at weblogic.ejbc20.runBody(ejbc20.java:479)
at weblogic.utils.compiler.Tool.run(Tool.java:126)
at weblogic.ejbc.main(ejbc.java:29)
ERROR: ejbc found errors
1. want to know why Null pointer exception is thrown by 'weblogic.ejbc'...
is it indicating an error in my code(bean); .....
i dont know how to fix the error.
find the deployments descriptors which i have written for deployment.
weblogic-ejb-jar.xml
<?xml version="1.0"?>
<!DOCTYPE weblogic-ejb-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 7.0.0 EJB//EN'
'http://www.bea.com/servers/wls700/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>Product</ejb-name>
<jndi-name>rgexample</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
ejb-jar.xml
<?xml version="1.0"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN"
"http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<entity>
<ejb-name>Product</ejb-name>
<home>examples.ProductHome</home>
<remote>examples.Product</remote>
<local-home>examples.ProductLocalHome</local-home>
<local>examples.ProductLocal</local>
<ejb-class>examples.ProductBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>examples.ProductPK</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>ProductBean</abstract-schema-name>
<cmp-field>
<field-name>productID</field-name>
</cmp-field>
<cmp-field>
<field-name>name</field-name>
</cmp-field>
<cmp-field>
<field-name>description</field-name>
</cmp-field>
<cmp-field>
<field-name>basePrice</field-name>
</cmp-field>
<query>
<query-method>
<method-name>findByName</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE name =
?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findByDescription</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE description
= ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findByBasePrice</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE basePrice =
?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findExpensiveProducts</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE basePrice >
?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findCheapProducts</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE basePrice < ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findAllProducts</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM ProductBean AS a WHERE productID
IS NOT NULL]]>
</ejb-ql>
</query>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>Product</ejb-name>
<method-intf>Remote</method-intf>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
weblogic-cmp-rdbms-jar.xml
<!DOCTYPE weblogic-rdbms-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 7.0.0 EJB RDBMS Persistence//EN'
'http://www.bea.com/servers/wls700/dtd/weblogic-rdbms20-persistence-700.dtd'>
<weblogic-rdbms-jar>
<weblogic-rdbms-bean>
<ejb-name>Product</ejb-name>
<data-source-name>examples-dataSource-demoPool</data-source-name>
<table-map>
<table-name>TORDER</table-name>
<field-map>
<cmp-field>productID</cmp-field>
<dbms-column>PRODUCTID</dbms-column>
</field-map>
<field-map>
<cmp-field>name</cmp-field>
<dbms-column>NAME</dbms-column>
</field-map>
<field-map>
<cmp-field>description</cmp-field>
<dbms-column>DESCRIPTION</dbms-column>
</field-map>
<field-map>
<cmp-field>basePrice</cmp-field>
<dbms-column>BASEPRICE</dbms-column>
</field-map>
</table-map>
</weblogic-rdbms-bean>
<create-default-dbms-tables>True</create-default-dbms-tables>
</weblogic-rdbms-jar>If you can have a look at a cmp example in the samples that ship with the server. My guess is that the weblogic-ejb-jar.xml file is missing the <persistence-use> element which for 810 would look like:
<persistence>
<persistence-use>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>7.0</type-version>
<type-storage>META-INF/weblogic-cmp-rdbms-jar.xml</type-storage>
</persistence-use>
</persistence>
I seem to recall that the elements might be slightly different in structure for the wls700 version of the DTD, so please check that (I cannot, I'm at home and don't have everything here).
Give that a try and see if it doesn't solve your compilation failure.
Also, the compilation should not be throwing a null pointer exception in a case like that, I consider that to be a bug.
-thorick -
Re: junit test for entity beans ... ejb 3.0
I'm confused. I'm trying to test my entity bean.
I have:
- an entity bean
- a stateless session bean for accessing the entity bean (facade)
- an interface for accessing the the stateless bean
And I'm trying to write a JUnit test class to test this bean. However, I am uncertain as to how to test this (I'm new to EJB 3.0, JBoss and Eclipse).
What would the JUnit test look like? I'm confused as to whether or not I should be injecting the interface/bean/what???
I've tried several variations. I either get "NameNotFound" - not bound exceptions or Null pointer exceptions.
What would the @EJB syntax look like or how would I do it through the context?
For Example:
@EJB private TestFacade myTest; //interface to stateless bean ?
OR
InitialContext ctx = new InitialContext();
TestResultFacadeBean myTest = (TestResultFacadeBean) ctx.lookup("localTest");
I'm confused at to which method I should be using and what object I should be accessing. If I could get either one to work, I'd be happy. :)
How do I ensure my bean is deployed to the container? What do I need to do?
If anyone has a simple example or explanation as to which method I should use and how to use it, I'd be very grateful.
Thanks very much,
LisaDOK, you need to have several layers of testing.
Layer 0. Test the entity beans are deployable (more on this later). Basically, you need to know that all your annotations work. Things to watch out for are multiple @Id fields in one class or @EmbeddedID or @IdClass in conjuction with @ManyToOne, @ManyToMany, @OneToMany, @OneToOne and fun with @JoinTable, @JoinColumn and @JoinColumns. Once you know how these are supposed to work with the spec, it's not too bad to write it correctly each time. But there are some gotchas that will break things later on.
Layer 1. Do the functions in the classes that don't depend on annotations work as expected. Typically, this is just going to be the getters and setters in your entity classes. Of course JUnit best practice says we don't bother testing functions that look like:
public T getX() {
return this.x;
or
public void setX(T x) {
this.x = x;
as there is nothing that can go wrong with them. So in that case, your level 1 tests will just be initial values specified from constructors and verifying that the non-get/set pairs work, and that the getters you have tagged @Transient work (because you've likely put some logic in them)
Layer 2. Test the session bean methods that don't require injection to work.
Layer 3. Test the session bean methods that require injection (Mock Objects). Simulate the injection for yourself, injecting Mock Objects for the entity manager. Then you can confirm that the correct methods are being called in the correct sequences, etc.
[Note this may require some skill in designing the mock. I'm working on developing my own entitymanager mock, and if it looks usefull I'll release it to the world.
Layer 4. Test the session bean methods that require injection (Real entity manager) (See Layer 0)
For this you will need an out of container persistence implementation. Currently Hibernate and Glassfish provide beta versions. You will need a different persistence.xml file that lists all the entities. You will have to use reflection to inject the entity manager(s) that you create from an entity manager factory unless you provide a constructor that takes an EntityManager as a parameter. You may need to use reflection to call any @PostConstruct method if you made it private.
Layer 5. Navigate the relationships in the objects returned from Layer 4 using a database that has been loaded with test data.
I am currently using Layers 0, 1, 2 & 4 to test my session beans and entity beans. -
Error in deploying entity beans - migration from JBoss to Weblogic 10.3.4
Hi,
I am migrating EJB2.x code from JBoss to Weblogic 10.3.4. As a first step, I am tyring to deploy just Entity beans. I get following error when deploying to server.
'weblogic.application.ModuleException: Exception preparing module: EJBModule(myEJB.jar)
Unable to deploy EJB: CollMetaData from myEJB.jar:
[EJB:011017]Error while reading 'META-INF/weblogic-cmp-rdbms-jar.xml'. The error was:
There are 1 nested errors:
java.lang.NullPointerException
at weblogic.ejb.container.cmp.rdbms.finders.EjbqlFinder.setMethods(EjbqlFinder.java:288)
at weblogic.ejb.container.cmp.rdbms.Deployer.processFinders(Deployer.java:744)
at weblogic.ejb.container.cmp.rdbms.Deployer.readTypeSpecificData(Deployer.java:446)
at weblogic.ejb.container.persistence.PersistenceType.setTypeSpecificFile(PersistenceType.java:506)
at weblogic.ejb.container.persistence.PersistenceType.setupDeployer(PersistenceType.java:455)
at weblogic.ejb.container.deployer.CMPInfoImpl.setup(CMPInfoImpl.java:118)
at weblogic.ejb.container.deployer.EJBDeployer.prepare(EJBDeployer.java:1214)
at weblogic.ejb.container.deployer.EJBModule.prepare(EJBModule.java:442)
at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:199)
at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:517)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:159)
at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:45)
at weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:613)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:184)
at weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:58)
at weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:154)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:60)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:207)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:98)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:217)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:747)
at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1216)
at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:250)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:159)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:171)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:13)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:46)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:176)
Can someone help me fixing the issue?
I changed schema locations of descriptor files as suggested at http://download.oracle.com/docs/cd/E17904_01/web.1111/e13706/overview.htm#i1074199 (see the third category for '*Enterprise Bean 2.1*' in the listing Table 1-1). Alternatively, you may see the schema locations for EJB2.0 directly at http://download.oracle.com/docs/cd/E17904_01/web.1111/e13719/dd_reference.htm#EJBPG481JRE version in JBoss is 1.6.0_16. JVM in web logic is pointing to jrockit_160_22_D1.1.1-3 which is come in the package. It doesn't seem to be related to JVM version mismatch.
I think it is an issue with definitions in weblogic-cmp-rdbms-jar.xml file. How should be the definition of entity-descriptor appear for entity bean which has finder methods in ejb-jar.xml?
Please see the snippets from corresponding descriptor files below.
ejb-jar.xml
=========
<entity>
<display-name>EmpBean</display-name>
<ejb-name>EmpBean</ejb-name>
<local-home>LocalEmpBeanHome</local-home>
<local>LocalEmpBean</local>
<ejb-class>EmpBeanBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>EmpBean</abstract-schema-name>
<cmp-field>
<field-name>firstName</field-name>
</cmp-field>
<cmp-field>
<field-name>lastName</field-name>
</cmp-field>
<cmp-field>
<field-name>phone</field-name>
</cmp-field>
<cmp-field>
<field-name>address</field-name>
</cmp-field>
<primkey-field>lastName</primkey-field>
<query>
<query-method>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql>SELECT Object(o) FROM EmpBean o WHERE o.lastName= ?1</ejb-ql>
</query>
</entity>
weblogic-jar.xml
============
<weblogic-enterprise-bean>
<ejb-name>EmpBean</ejb-name>
<entity-descriptor>
<pool>
<max-beans-in-free-pool>20</max-beans-in-free-pool>
<initial-beans-in-free-pool>5</initial-beans-in-free-pool>
</pool>
<persistence>
<persistence-use>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>6.0</type-version>
<type-storage>meta-inf/weblogic-cmp-rdbms-jar.xml</type-storage>
</persistence-use>
<finders-load-bean>true</finders-load-bean>
</persistence>
</entity-descriptor>
<local-jndi-name>ejb/EmpBean</local-jndi-name>
</weblogic-enterprise-bean>
weblogic-cmp-rdbms-jar.xml
====================
<weblogic-rdbms-bean>
<ejb-name>EmpBean</ejb-name>
<data-source-jndi-name>mysqlDS</data-source-jndi-name>
<table-map>
<table-name>emp</table-name>
<field-map>
<cmp-field>firstName</cmp-field>
<dbms-column>first_namel</dbms-column>
</field-map>
<field-map>
<cmp-field>lastName</cmp-field>
<dbms-column>last_name</dbms-column>
</field-map>
<field-map>
<cmp-field>phone</cmp-field>
<dbms-column>phone</dbms-column>
</field-map>
<field-map>
<cmp-field>address</cmp-field>
<dbms-column>address</dbms-column>
</field-map>
</table-map>
<weblogic-rdbms-bean>
Please ignore any typos that you may notice in above sample descriptions (because I just typed it here changing original names).
When I try to deploy the application, I get error message as posted in my first post above in this thread. Please correct me if I am making any erros in descriptor files.
Edited by: 839281 on Feb 25, 2011 10:55 AM
Edited by: venkatp on Mar 1, 2011 9:31 AM -
Ejbc outofmemory error in weblogic 8.1 sp2 when compiling cmp entity beans
I have a set of entity beans which compiled [ejbc step]fine under weblogic7.0 sp4. But when i try to to the same thing under weblogic 8.1 i get an outofmemory error. Any pointers
I am using 81 sp4
-
How to Deploy an entity bean in Weblogic 6.1
Hi friends,
Could any one of u pls send me the Deployment steps for an entity bean
in Weblogic 6.1 Server? or pls send me the URL from where i can get the step by
step entity bean deployment process...
Thanx in advance...
Sridhar.Y.S.Copy Entity Ejb jar file to the config/mydomain/applications directory.
http://edocs.beasys.com/wls/docs61/ejb/EJB_deployover.html#1011066
"Sridhar" <[email protected]> wrote:
>
Hi friends,
Could any one of u pls send me the Deployment steps for an entity
bean
in Weblogic 6.1 Server? or pls send me the URL from where i can get the
step by
step entity bean deployment process...
Thanx in advance...
Sridhar.Y.S. -
Can CMT Session Bean call BMP Entity Bean in WebLogic 6.0?
Hi
Does anybody successfully use CMT Session Bean calling BMP +CMT Entity bean in
WebLogic6.0? I have the following problem.
Any idea will be appreciated.
--Winston
Let's say we have a Session bean SB, it uses container to manage the transaction.
A method of SB will call an Entity Bean EB which adopts bean-managed persistence.
Both SB and EB use CMT and all of their methods use "required" in the descriptor
file.
1. If the connection con.getAutoCommit() is true in the EB, then the transaction
within SB cannot be rolled back as the ejbCreate() has already commit into the
database.
2. On the other hand if Connecton of EB con.getAutoCommit() is false, then container
cannot successfully commit the transaction from SB's method, as EjbCreate and
EjbStore() in EB are likely using the different database connections, which causes
EbjStore() fail and the following error message will be sent to the Console:
============================================================
"<Jul 9, 2001 4:16:48 PM PDT> <Error> <EJB> <Exception during commit of transacti
on transaction=(IdHash=7738920,Name = [EJB TraderBeanImpl.buy()],Xid=105:5e6719a
ded42e332,Status=Rolled back. [Reason = weblogic.utils.NestedRuntimeException:
E
rror writing from beforeCompletion - with nested exception:
[java.rmi.NoSuchObjectException: Exception from ejbStore:javax.ejb.NoSuchEntityE
xception: ejbStore: AccountBean (4003) not updated]],numRepliesOwedMe=0,numRepli
esOwedOthers=0,seconds since begin=0,seconds left=30,SCInfo[examplesServer]=(sta
te=rolledback),properties=({weblogic.transaction.name=[EJB TraderBeanImpl.buy()]
})): java.rmi.NoSuchObjectException: Exception from ejbStore:javax.ejb.NoSuchEnt
ityException: ejbStore: AccountBean (4003) not updated
at weblogic.ejb20.internal.EJBRuntimeUtils.throwRemoteException(EJBRunti
meUtils.java:57)
at weblogic.ejb20.manager.DBManager.beforeCompletion(DBManager.java:364)
at weblogic.ejb20.internal.TxManager$TxListener.beforeCompletion(TxManag
er.java:211)
at weblogic.transaction.internal.ServerSCInfo.callBeforeCompletions(Serv
erSCInfo.java:511)
at weblogic.transaction.internal.ServerSCInfo.startPrePrepareAndChain(Se
rverSCInfo.java:78)
at weblogic.transaction.internal.ServerTransactionImpl.localPrePrepareAn
dChain(ServerTransactionImpl.java:893)
at weblogic.transaction.internal.ServerTransactionImpl.globalPrePrepare(
ServerTransactionImpl.java:1229)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:168)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
01)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl.buy(TraderBeanEOI
mpl.java:37)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl_WLSkel.invoke(Tra
derBeanEOImpl_WLSkel.java:76)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:373)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:237)
at weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestH
andler.java:118)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:17)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.utils.NestedRuntimeException: Error writing from beforeCompletion - wit
h nested exception:
[java.rmi.NoSuchObjectException: Exception from ejbStore:javax.ejb.NoSuchEntityE
xception: ejbStore: AccountBean (4003) not updated]
at weblogic.ejb20.internal.TxManager$TxListener.beforeCompletion(TxManag
er.java:220)
at weblogic.transaction.internal.ServerSCInfo.callBeforeCompletions(Serv
erSCInfo.java:511)
at weblogic.transaction.internal.ServerSCInfo.startPrePrepareAndChain(Se
rverSCInfo.java:78)
at weblogic.transaction.internal.ServerTransactionImpl.localPrePrepareAn
dChain(ServerTransactionImpl.java:893)
at weblogic.transaction.internal.ServerTransactionImpl.globalPrePrepare(
ServerTransactionImpl.java:1229)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:168)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
01)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl.buy(TraderBeanEOI
mpl.java:37)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl_WLSkel.invoke(Tra
derBeanEOImpl_WLSkel.java:76)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:373)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:237)
at weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestH
andler.java:118)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:17)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.transaction.RollbackException: Unexpected exception in beforeCompletion
: sync = weblogic.ejb20.internal.TxManager$TxListener@356eb0
Error writing from beforeCompletion - with nested exception:
[weblogic.utils.NestedRuntimeException: Error writing from beforeCompletion -
wi
th nested exception:
[java.rmi.NoSuchObjectException: Exception from ejbStore:javax.ejb.NoSuchEntityE
xception: ejbStore: AccountBean (4003) not updated]]
at weblogic.transaction.internal.TransactionImpl.throwRollbackException(
TransactionImpl.java:1261)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:218)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
01)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl.buy(TraderBeanEOI
mpl.java:37)
at examples.ejb.basic.statefulSession.TraderBeanEOImpl_WLSkel.invoke(Tra
derBeanEOImpl_WLSkel.java:76)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:373)
at weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.ja
va:237)
at weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestH
andler.java:118)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:17)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
>"
We did receive a 4.5.1 / 5.1 interoperability patch - but it wasn't quite 'seamless'.
We never tried to use it.
SOAP? Isn't that around 50 times slower than RMI?
Mike
"Gary Mui" <[email protected]> wrote:
We ran into this issue last fall and got some feedback from weblogic
support. They originally said that it could be done (as well as different
versions talking to one another via JMS) but it turned out that they
were
incorrect and ended up saying that it is not possible. Before 6.0 went
GA,
BEA said that there would be a interoperability patch to do this, but
I've
never seen nor heard of anything regarding it. As a workaround, we
implemented 4.5.1 / 6.0 communication via SOAP.
Mike Reiche wrote in message <3b1bcaec$[email protected]>...
I have the same question - and more. Last year we were told that wecould
not use
RMI (and ejbs) between 4.5.1 and 5.1. Which seems kinda weird becauseI've
heard
of people using WL ejbs from Tomcat. This issue has caused us to avoidusing
WL ejbs in any future development which has any chance of ever beingused
by any
app server (WL included) that is not under the direct control of thedata
center.
I've been trying to convince the Architecture team here that we canuse WL
EJBs
and we can call them from other app servers - but can't seem to getany
supporting
statement from BEA (maybe I haven't tried hard enough).
Anyway, a response from BEA would be appreciated.
- Mike
"Madhu K" <[email protected]> wrote:
Is it possible to call a (stateless session) bean deployed in weblogic
6.0
from a bean in weblogic 5.1? I have two versions of weblogic running
on two
different hosts and I have to call a bean that is running in 6.0 from
5.1.
Are there any limitations?
Appreciate any feedback/suggestions.
Thanks,
Madhu
Maybe you are looking for
-
Thunderbolt port - MDP fitting doesn't fit
I've just purchased a MacBook Pro 13" to replace a stolen MacBook. The port to connect to an external display has changed but everywhere seems to say my existing Mini DisplayPort cable will still work but it's a completely different fitting. I'm ver
-
PO item overview with item details for service POs
Hi experts, Is there any standard report to see the PO Item overview short description data with Item-services details in case of service POs. We raise the service pos with service short description in Item overview and against that short descriptio
-
Excel 2010 crash Terminalserver
Hi all, i have trouble with Excel 2010 that it crash and kill the terminalserver where it is running. My enviroment: Terminal server: VM WinServer 2008R2 with Citrix XenApp 6.5 and Office 2010 ( STD and or PRO ) Citrix Provisioning: VM WinServer 2008
-
Subquery inside Merge Into under 11g
create or replace PROCEDURE SP_IN_CURRENCY IS CURSOR csr IS SELECT currency_code FROM in_currency ORDER BY currency_code; v_hkd_rate NUMBER(15,9); BEGIN SELECT spot_rate INTO v_hkd_rate FROM in_currency WHERE in_currency.currency_code = 'HKD'; MERGE
-
Lost photoshop and premier elements 13
Had photoshop elements 13 and premier elements 13 on my macbook pro and lost it. Need to reinstall.