EJB calling EJB - Very very slow in iAS

We have an EJB deployed to the iCache instance of iAS that calls another EJB on the same instance.
We experience serious performance problems when executing this call. The response time is up to 3 Minutes !!!
Are there any configurations that I have to change to make this performant?

I just noticed in the error message, this line that says :
NestedException: com.ibm.db2.jcc.c.SqlException: DB2 SQL error: SQLCODE: -204, SQLSTATE: 42704, SQLERRMC: ADMIN2.XTLKEYSBEAN
the table is ADMIN2.XTLKEYS, not ADMIN2.XTLKEYSBEAN. could this be the problem? Where is the table name defined in the EJB set up?
Thanks!
-PA

Similar Messages

Ejb calling ejb, how many threads?

A few of questions regarding the way WLS threads EJBs:
1. It seems straightforward if I deploy a WLS "application" that's composed of
a single EJB. I suppose that the app runs as a thread within the WLS JVM and "pooling"
also makes sense.
2. But what about an "application" that's composed of 2 EJBs, one calling the
methods of the other. Is each EJB ran in its on thread? It seems like they would
have to be in order to "pool" them or does the "pooling" affect the entire "application",
i.e. you don't pool the individual beans but the entire app?
3. How is all this affected by using local interfaces for the EJB-to-EJB method
calls?How does this affect pooling and threading within WLS?
Thanks.

Hi Jack,
"Jack Ottofaro" <[email protected]> wrote in message
news:[email protected]..
A few of questions regarding the way WLS threads EJBs:
1. It seems straightforward if I deploy a WLS "application" that'scomposed of
a single EJB. I suppose that the app runs as a thread within the WLS JVMand "pooling"
also makes sense.It just seems because you have the question number two :)
2. But what about an "application" that's composed of 2 EJBs, one callingthe
methods of the other. Is each EJB ran in its on thread? It seems like theywould
Actual EJB code runs within a thread that first began
processing of the request. So you may have two cases.
First, if the bean is colocated (belongs to the same jar
or ear) with the caller, by default it will be a local call
and the bean will run within a caller thread. Second,
if it's remote call, it will run within "its own" thread.
have to be in order to "pool" them or does the "pooling" affect the entire"application",
i.e. you don't pool the individual beans but the entire app?I'm not sure I understood the question.
3. How is all this affected by using local interfaces for the EJB-to-EJBmethod
calls?How does this affect pooling and threading within WLS?Local interfaces buys nothing but mess. By default all calls to
the beans residing in the same application , even if they are
declared as EJBObjects, are optimized to be local so that
parameters are passed by reference and are not subjects of
serialization.
Hope this helps.
Regards,
Slava Imeshev

Call EJB from ABAP in NW2004s

Hello everybody,
I'm trying to call a EJB function from ABAP code in NW2004s. I search SDN for almost two days now but can't get it to work.
Here is what I've done:
- created a EBJ in SAP NetWeaver Developer Studio 7.0.11 (came with our NetWeaver installation dvds)
- added a function: public void processFunction(com.sap.mw.jco.JCO.Function function)
- edited ejb-j2ee-engine.xml setting : <jndi-name>Z_ISR_BLOG</jndi-name>
- found that in jndi registry under: rfcaccessejb/Z_ISR_BLOG
now something I don't understand by reading in SDN:
- I created a JCo RFC Provider called ISRJCO and entered connection informations for our system
- I created a entry in sm59 (type TCPIP, registered remote programm) and connection test worked for it
How do I now access my EJB? Does anybody have some howto links for me?
Thank you very, very much in advance!
Thorsten

Hi Thorsten,
you will have to use your bean with the processFunction() method.
http://help.sap.com/saphelp_nw04s/helpdata/en/6a/82343ecc7f892ee10000000a114084/frameset.htm
       1.      On startup the JCo RFC Provider service connects to the Web AS repository.
       2.      On startup the JCo RFC Provider service registers itself at the Gateway with a defined name. It is possible to register it under different names and at different Gateways.
       3.      The Web AS calls a function for the registered RFC destination.
This graphic is explained in the accompanying text
Make sure that the function is defined in the repository!
       4.      The Gateway forwards the call to the JCo RFC Provider service.
       5.      The JCo RFC Provider service looks in the JNDI for the EJB, which is registered under the function name.
This graphic is explained in the accompanying text
The name of the function must be identical with the JNDI name of the bean, that is, it is necessary to have a JNDI name. If there is no such name, the JCo RFC Provider service will not be able to find the bean.
It is advisable for the beans to be written with a LocalHome interface.
       6.      The JCo RFC Provider service calls the processFunction(JCO.Function) method of the EJB found.
       7.      The results of that call (the modified JCO.Function) are passed to the Gateway.
       8.      The Gateway passes the results back to the Web AS.
Have a look here too: http://help.sap.com/saphelp_nw04/helpdata/en/0f/74e2963e4f9840ab9a4b9e10c5ebcb/frameset.htm
Regards,
Chris
Edited by: Christian Cz. on Apr 15, 2009 4:33 PM

WLS hanger when calling EJB in second WLS

Hello,
I have a very strange problem I need to track down. The scenario is as follows:
WLS6.1 SP3/Solaris 2.8
One WLS containing an EJB A (stateless session) that has Trx=Required on method_A,
the second WLS that has an EJB B deployed (stateless session) that has Trx=NotSupported
on method_B. Now I call in a client method_A of EJB A, which calls method_B of
EJB B. This works fine.
Now I install the second WLS on an different machine (same OS=solaris), and repeat
above scenario. The result is that I am able to call method_A of EJB A, which
calls method_B of EJB B. But after I return from method_B/EJB in EJB A, I hang
in EJB A/postInvoke.
From the thread dump I see the following:
"ExecuteThread: '46' for queue: 'default'" daemon prio=5 tid=0x7c20c0 nid=0x35d
waiting on monitor [0xdb0f000..0xdb0fdc0]
at java.lang.Object.wait(Native Method)
at weblogic.transaction.internal.ServerTransactionImpl.globalRetryCommit(ServerTransactionImpl.java:1970)
at weblogic.transaction.internal.ServerTransactionImpl.globalCommit(ServerTransactionImpl.java:1899)
at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(ServerTransactionImpl.java:220)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:189)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:272)
at com.csg.pb.tit.tdc.cptypay.ejb.CounterpartyPayPathBean_43jp4t_EOImpl.routeCif(CounterpartyPayPathBean_43jp4t_EOImpl.java
at com.csg.pb.tit.tdc.cptypay.ejb.CounterpartyPayPathBean_43jp4t_EOImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
How canI find out what is going on?
Thanks
Juerg

I am getting the same exception about an assertion failed at weblogic.t3.srvr.T3Srvr.checkServerLock. Any ideas?

EJB call across server instance with multiple Datasource

Hi,
          I posted in the EJB group and was told people here will be able to help.
          I'm currently facing a serious integration problem. The problem occurs when an EJB in my application (my instance) tries to call another EJB in a separate application (in another instance). Hope someone can help me to overcome this.
          My setup is WLS 8.1 SP2 (1 domain, 2 instances) with Oracle 9i.
          The scenario is as follows:
          EJB A (tx required) in instance A calls EJB B (tx required) in instance B.
          EJB A uses datasource A in instance A to update database A and EJB B uses datasource B in instance B to update database B.
          When I tried with both datasources using non-XA driver and both using XA driver the result is the same, EJB A executes fine and can successfully invoke the method on EJB B. But when EJB B tries to lookup the datasource B, it goes to instance A to do that and of course fails to find it.
          It only works when I create and deploy datasource B (XA) to instance A as well, meaning I now have datasources A and B in instance A.
          It all works well when I use a servlet(e.g.) in instance A to call EJB B. Leading me to suspect that the error could be due to some problems or behaviour which I may have missed out during the propagation of the transaction or the EJB context.
          This behaviour seems very illogical, can someone please enlighten me. Any help will be very much appreciated.
          Thanks,
          Kelvin

You might try asking this over in the transaction group:
http://forums.bea.com/bea/forum.jspa?forumID=2052
-thorick

Calling EJB from app client

Hello, everybody,
I'm very new at EJB and I'm trying to learn it.
I have created Enterprise Application using Netbeans IDE, I have EJB and APP client. What I want is to connect to my MySql database and get some info from table.
For e.g. Login and Password.
How can I call EJB from my client app which connects to my database and gets information I need?

What server you are using?
if you use jboss AS ,here is a simple Main class how to connect EJB and access ejb methods:
package com.david.ejb.client;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;
import com.david.ejb.domain.Person;
import com.david.ejb.domain.PersonRemote;
public class Main {
     public static void main(String[] args) {
          try {
               Context ctx = getInitialContext();
               Object obj = ctx.lookup("PersonSessionRemote/remote");
            PersonRemote pr=(PersonRemote)PortableRemoteObject.narrow(obj, PersonRemote.class);
            Person p=new Person();
            p.setName("david");
            pr.addPerson(p);
            pr.findPerson(1);
               // System.out.print(br.find(pk).getAuthor_name());
          } catch (Exception ex) {
               ex.printStackTrace();
     private static Context getInitialContext() throws NamingException {
          Properties p = new Properties();
          p.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.NamingContextFactory");
          p.setProperty(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
          p.setProperty(Context.PROVIDER_URL, "jnp://localhost:1099");
          return new InitialContext(p);
}Person is ant @Entity and PersonRemote is remote interfaces, to connect database you have to make datasource file at jboss-4.2.3.GA\server\default\deploy
simle mysql-ds.xml looks like this:
datasources>
   <local-tx-datasource>
      <jndi-name>some name</jndi-name>
      <connection-url>jdbc:mysql://localhost:3306/dbname</connection-url>
      <driver-class>com.mysql.jdbc.Driver</driver-class>
      <user-name>root</user-name>
      <password>root password</password>
      <min-pool-size>5</min-pool-size>
      <max-pool-size>100</max-pool-size>
      <idle-timeout-minutes>15</idle-timeout-minutes>
      <exception-sorter-class-name>com.mysql.jdbc.integration.jboss.ExtendedMysqlExceptionSorter</exception-sorter-class-name>
      <valid-connection-checker-class-name>com.mysql.jdbc.integration.jboss.MysqlValidConnectionChecker</valid-connection-checker-class-name>
   </local-tx-datasource>
</datasources>also at resources/META-INF directory you must have persistence.xml like this
<persistence>
     <persistence-unit name="SimpleEjb">
          <jta-data-source>java:/some name</jta-data-source>
          <properties>
               <property name="hibernate.hbm2ddl.auto" value="update" />
               <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
               <property name="hibernate.show_sql" value="true"/>
               <property name="hibernate.format_sql" value="true"/>
          </properties>
     </persistence-unit>
</persistence>

My macbook pro is running very slow and very very hot

hi everyone I have a 13 inch mid 2012 MacBook pro,
it is running very very slow and extremely hot, I downloaded a program called smc fan control and it is reading the internal temperature of my computer as 80 degrees Celsius. I was looking on the forums and saw that I should run an apple hardware test. which I have done and it is coming up with Error 4/MOT/4/40000002: EXHAUST-2003
what does this mean? is it something to do with my fan?
also there is a very strange clicking noise when I lift the mac up or if its on its side and sometimes it just randomly freezes, the computer does not respond and then it restarts.
what do I do?
please help!

" the fan didn't seem congested with dust, at least not enough to cause any malfunction."
The lint and crap builds up in the heat exchanger radiator. It's the grilled thing at the output of the fan.
https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Unibody+Mid+2012+Fan+Replacemen t/10367
Look at step 6. It's that grilled thing at the top of the fan. If you remove the fan that radiator is probably clogged with lint. Brush it all away and if possible blow out the fan with compressed air. Make sure the fan turns freely and doesn't feel stiff.
http://s291.photobucket.com/user/spudnuty/media/13%20inch%20MacBook%20Core%202%2 05-2007%20dirty%20rainstrm/MacBookHeatsinkinlet.jpg.html?filters[user]=68196367& filters[recent]=1&sort=1&o=21
This isn't a MBP radiator but the problem will look like this.

TS1398 since i have updated the latest software i am facing problem using wifi which is very very slow most of the time or wont connect at all was that update supposed to be for better or worse

is apple product going down hill it seems their updates are creating a lot of problem now the wifi connection is really ******* me off it doesnt connect or even if it does its very very slow i used to love using iphone but i think its time to move on to something else they have taken everyone for granted

Welcome to Apple Discussions, Mark.
I've never come across your first problem on any of the Apple notebooks I currently own (or have owned in the past). Then again, perhaps I'm not looking close enough.
Have you compared it with any other 12" PowerBook? If not, perhaps you might be able to try that at a local store with units on display.
Otherwise you might want to give AppleCare a call. Alternatively, if you have an Apple Store or Apple Authorised Service Provider near you (I don't know where you are located) then you can take it in to be checked.
As for your second problem (uneven illumination), that has been known to afflict other notebooks. My own 15" PB has had its screen replaced on two occasions because of this. Depending on the severity, you might be able to get it replaced. Mine became so bad that the screen was effectively unusable.
To be honest, here in the UK, I would actually try for a replacement PowerBook - if the problems were severe enough and also because your PB is still very new. However the consumer laws in your country (wherever that may be) might be very different to mine.

How can I call EJB from JSP/Servlets in iWS?

Hi!!
My JSP/Servlets are on iWS, and I deploy EJB on iAS.
In this case, I don't know how JSP/Servlet call EJb on iAS.
I'd like to know how I can set JNDI name in JSP/Servlet on iWS.
I will thank you if you give me a simple example source using JSP/Servlet
and EJB.
Thanks in advance!!!
- Park-

Park,
Why Are you running your JSP/Servlets in iWS instead of iAS? For whatever
reason,
look at the Converter sample from iAS. You will be doing RMI/IIOP in this
case and the sample explains in detail what to do.
hth,
-robert
"SungHyun, Park" <[email protected]> wrote in message
news:9jpfmt$[email protected]..
Hi!!
My JSP/Servlets are on iWS, and I deploy EJB on iAS.
In this case, I don't know how JSP/Servlet call EJb on iAS.
I'd like to know how I can set JNDI name in JSP/Servlet on iWS.
I will thank you if you give me a simple example source using JSP/Servlet
and EJB.
Thanks in advance!!!
- Park-

Very very slow broadband , someone please help

Hi have come here as a last resort , i have been a bt internet/broadband user for over 10 years have had broadband for a long time , we often in our house have me playing games online on the pc , the kids have the xbox 360 and the mrs will have the ipad all hooked up at the same time with no problems ,
then friday the broadband dropped and we had a orange flashing light ,
it came back on about 5 mins later and ever since it is very very slow , i have tryed resteing and rebooting the router , it connects to the internet just fine but everything is running ar a snails pace , tryed calling them which is a nightmare trying to explaine to a call center guy , they told me to hang up for a line test and they would call me back and havnt bothered
i have done the line test online it it comes back as ok , we have noticed some nose on the phone line from today
can anyone please give me some advice?
here is btspeed check results:
FAQ
<script type="text/javascript"></script> Test1 comprises of Best Effort Test: -provides background information.
Download Speed
80 Kbps
0 Kbps
250 Kbps
Max Achievable Speed
Download speedachieved during the test was - 80 Kbps
For your connection, the acceptable range of speeds is 50-250 Kbps.
Additional Information:
Your DSL Connection Rate :160 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 135 Kbps
If you wish to discuss these results please contact your ISP.
If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.
Your test has completed please close this window to exit the performance tester.
Please visit FAQ section if you are unable To understand the test results.
http://speedtest.net/result/1379380863.png

have phoned them 4 times now (2 times on 151) and they ensure me they have tested the line and i have no fault , they set up remote asstent and the guy did a soft restart of my hub which seemed to work , he then tryed to get me a better d/l speed but it whet back to a poor one again , so he again did a soft restart and i now get this:
ADSL line status
Connection Information
Line state
Connected <script type="text/javascript"></script>
Connection time
0 days, 00:40:50
Downstream
352 Kbps
Upstream
448 Kbps
ADSL Settings
VPI/VCI
0/38
Type
PPPoA
Modulation
G.992.1 Annex A
Latency type
Interleaved
Noise margin (Down/Up)
11.4 dB / 21.0 dB
Line attenuation (Down/Up)
21.4 dB / 12.0 dB
Output power (Down/Up)
1.0 dBm / 1.5 dBm
the downstream and upstream numbers are both better but it has made no differnace, every page i go to takes ages to load (if they load at all) and the ipad wont load at all , this is now getting silly i have wasted around 6 hrs of my time tonight trying to fix this and now just feel like canceling and ordering from eleswhere as i know the messing i will have to go through in the morning to explaine this from the start to a new call center worker all over again
i was led to belive that bt staff would help me if i posted here hence why i did so but even this is looking like a total waste of my time , (no dissrepect to you imjolly for your help)

MacBook Pro (13-inch, Mid 2010) VERY VERY VERY Slow

Hi Folks,
First, let me start to say I am an IT Professional by trade and know a thing or two about fixing PC/Macs, but this one is stumping me. A friend has a 13-inch Mid 2010 MacBook Pro that started to run very very very slow. I figured it was just a bad mechanical drive and figured swapping it out with a new SSD would be the fix. Well, that didn't work and I couldn't even partition the new drive. I figured maybe I had a DOA drive, so I connected the new drive via a SATA to USB adapter to another Mac and a PC and it runs great. I researched the error I got during formating and it was recommended to replace the SATA flex cable. The part took about a week to arrive, so the battery fully died. I couldn't get the Mac wouldn't power up after replacing the SATA cable and I didn't get a charge light either. I figured OK, maybe I have a bad power cord, so I tried another and didn't work either. I can only get it to power up with a 85w charger, but it doesn't seem the battery is charing either. OK, so we have power but it's acting weird... and now I could format the drive. Thought that was it and I could call this one done. I thought the install was running very slow (maybe 15 minutes to preload all the setup files) but I still let the setup routine run over night. Woke up the next day and the setup was still running! I am running out of ideas what is going on with this MacBook Pro. Any ideas??

jmkalfut,
I have the same model MacBook Pro as your friend. Regarding the speed of the setup, one possibility is that the new internal SATA cable is also faulty. What I don’t understand is the logic in this part of your post:
The part took about a week to arrive, so the battery fully died.
Why would the time it took to deliver the new internal SATA cable be the cause of its battery fully dying? Since you’re currently able to get the MacBook Pro to run by using a 85 W charger, what information is shown about the battery in System Information when it’s running? Perhaps its battery needs to be replaced? Have you tried using a different 60 W charger, to see if the original charger needs to be replaced?

Macbook is acting very very slow.....

Not long ago I noticed that my Macbook was prone to acting slowly from time to time, which seemed to be okay until a couple of days ago when the whole system bogged down entirely. After managing to restart my system, by pushing the power button until the Macbook turned off, the system then labored for several minutes to get to the main Macbook screen, and when it finally did I couldn't click on anything or make the Mac work at all other then seeing the main screen. After several attempts to repair it using several methods, I finally was able to archive my information and go back to my old Mac startup disc, which is model 10.5.2 since my Macbook is about a year and a half old.
Anyway, this allowed me to once again navigate around my computer but everything still goes at a very very slow pace, and will hesitate frequently for several seconds before continuing, like while typing out a message, for example. Also, I get an error message stating that "the application MTWB Product quit unexpectedly" and no matter if I choose to ignore, report, or relaunch this message keeps appearing. I was just about ready to upgrade to Snow Leopard too so this has very strange timing to it in a way.
Any help would be greatly appreciated as I'm trying anything in order to fix this mysterious problem.
Message was edited by: Chris Hedden

The hard drive is 148.7 GB's and there is 93.8 GB's to spare.
I have used disc utility to verify and attempt to repair the disc, which it said was not necessary since the disc was apparently fine. However when attempting to verify or repair disc permissions it says there is a certain amount of time remaining but after a lengthy period of time it doesn't finish the job.
Other then recent file downloads such as FLAC music files I have not added any applications or new software other then a downloader for FLAC files called xAct which is usually fine for me. I was going to upgrade to Snow Leopard but I hadn't gotten to that stage yet.

Very very slow internet connection (modem: westell 327w)

hey guys, it's been 2 weeks already and my internet speed is very very slow. i checked my speed at speedtest.net and the speed is like 76kbps. i called customer service many times already but they couldnt fix the the problem, they said they're going to send a technition in about2-3 days but as you see it's been 2 weeks. of course i restarted my modem already but the speed slows down like right after a minute. i live in new york and there's no major rain on the day my internet connection slows down. i'm really tired of calling the customer service...so please help guys. thank you

If you are not useing wireless, and have no intention of useing it, I would log into the modem and turn it off. Someone else could be connecting to you router and useing your bandwidth. But not likely that is you problem.
If you are useing wireless then you should log into your modem/router and be sure you have security enabled so nobody can get into you connection.
If Verizon promised someone would come out and fix the issue, they should have given you a service order number for the repair. I would contact them and have them review you account and ask what gives? It is possible that there is a line problem and they should be able to determine that from the central office. Call tech support and insist that the problem be solved. If it requires a technician visit, ask for the order number and date when the repair will be made. Get the repair order number and insist that it be completed.
Message Edited by prisaz on 04-05-2009 11:03 AM

T500 running very very slow on specific WIFI network only???

Hi,
This problem is driving me absolutely crazy. It means that I can only use my PC at home if I use a cable connection to the router....
Problem is that on my home network my T500 is having a very very slow access to the internet via wireless. On all other wifi network I have connected to there is no issue and speed is high.
Also several colleagues have been here with their T500 and none of them experience any issues with speed. We all run on the same t500 model, ordered at the same time and with same setup. We use Windows XP.
I have tried to update all drivers, I have called my network provider who have updated router software, changed frequency and all other things they could do to avoid interference etc.
I have two other PC's at home - none of them have any issues.
I have done a web seacrh and could see that I am far from alone with this strange issue of a T500 being slow on only a specific network (often a home network). Many different routers are involved, so I dont think it is arouter problem (would also mean that my colleagues identical t500s would have issues right??).
Have there been any reolution to this T500 problem??
Best regards and with hope of "salvation" :-)
Christian

Which model of wireless card are you using? Intel 5100 or 5300 or thinkpad version?
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Generic eWay for calling EJB?

I'm evaluating JCAPS currently for my organization. Since we base on Oracle iAS application server I'd like to investigate if there is any way to integrate easily with this server. I'm quite surprised that there is no generic eWay for EJB. Sure there are some specialized eWays foe WLS, SJAS etc. but no for iAS. This is quite surprising since most of the other integration products which I do evaluate allows aby EJB integration out-of-the-box...

Of course I can always write wiring code and call EJB. But, isn't integration platform supposed to help me doing this without code, in declarative way? Moreover other there are specialised eWays for WLS and SJSAS in CAPS. If I understand correctly they're doing exactly why I was talking about. If yes why there are no eWays for other platforms like Oracle App Server, JBOSS?

EJB calling EJB - Very very slow in iAS

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