Bi publisher JDBC connection

hi
I have installed Mysql ODBC connector and the test connection was successfull
but in Bi publisher in adding a data source the error occurs:
"Can not establish connection".
what is the problem? what should I do?

Hi,
Finally, made that work. Our DB has RAC setup and somehow, from from BI Publisher I couldn't connect as explained earlier. But, the workaround gave me a solution, like, in the Connection String, I have to directly give the connection like this in BIP:
jdbc:oracle:thin:@
(description =
(enable=broken)
(address_list = (failover=on)(load_balance=on)
(address = (protocol = tcp)(host = xxx)(port = 1521))
(address = (protocol = tcp)(host = xxx)(port = 1521))
(connect_data = (server = dedicated)(service_name = xxx)
(failover_mode = (type = select)(method=basic)(retries = 180)(delay = 5))
Usually, it would have been good enough if I had created the same connection info in TNS Names.ora; but, for soem reason, it didnt work for me.
Hope someone can find this info needful.

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Can not deploy a report using JDBC connection on CR2008 Server

Hi Group,
I have a report created with JDBC connection. When I tried to add it to CR2008 server, it gives an error - "An unexpected error has occurred ". Basically I want to add a report to a public folder via CMC. I am using adminstrator account.
Then I thought I need to add JDBC driver into CR2008 server. so I put oracle jdbc jar into CR2008 server classpath and add JDBC connection info into CRConfig.xml. but I still got the same error.
I also tried:
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Hello Will,
Crystal Reports supports connections to JDBC/JNDI out of the box, and have done so for a while, whether stand-alone or published to Enterprise.
To specify where the server would search for the JDBC driver jar files, you'd change the classpath tag found in the CRConfig.xml file found on the machine where the Crystal Reports Page or Job Server is running.
For early Crystal Enterprise 10 and before, it used Java Native Interface (JNI) to start the Java process to retrieve the data from the JDBC connection.
For later Crystal Enterprise 10 and later, it starts off a "Java Server" process, and communicates to the Crystal Reports process via CORBA TCP/IP connection.
Commonissues that may arise: (1) CRConfig.xml not configured properly, (2) unable to start or communicate to the "Java Server" because of permissions or firewall.
Note that this is a separate connectivity map from using ADO or ADO.NET.
Sincerely,
Ted Ueda

Cant create JDBC Connections in RMI Server

I am having a pretty weird problem which I am struggling with for the last three days. In the main method of the Server object, following three things are supposed to happen:
1) Creation of a JDBC Connection
2) Creation of a Remote Object and then publishing the same to Registry.
3) Creation of another JDBC Connection (exactly same as in step1)
step 1 and 2 successfully executes and the third one always errors out. I just simply get a NullPointerException.
If I comment out step 2, step 3 executes successfully. Can someone please tell me the mystery? I need your response really urgently so please help me.
TIA
Code Snippet:
public static void main(String[] args) {
  System.setSecurityManager(new RMISecurityManager());
  try {
   Properties dbProps = new Properties();
   dbProps.put("user", "SDAWOODI");
   dbProps.put("password", "SDAWOODI");
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  catch (Exception sqle) {
   System.out.println("[11111]"+sqle.toString());
  Properties props = new Properties();
  props.put("java.rmi.server.codebase", rmiCodeBase);
  System.setProperties(props);
  try {
   SchedulerRImpl schedulerR = new SchedulerRImpl(ssce_sch1);
   String nameStr = "s-sce-scheduler";
   try {
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   catch (AlreadyBoundException abe) {
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    try {
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  else {
   System.out.println("connection is NOT null");
catch (Exception sqle2) {
  System.out.println("[22222]"+sqle2.toString());
}

In reply to reply #4:
You can also quote the other part of my reply when it comes to snippets. There are so many pieces of code missing from your snippet that I simply cannot guess what is wrong. (Please do not put your entire class structures here.)
We get connections in many different classes at many different times. It is after all an application that does user work and the user work involves database accesses. Some of those accesses are before RMI (to establish repositories, etc). Most are after.
This URL (jdbc:oracle:thin:@wonder.cisco.com:1521:ODSDEV) appears to use a network connection (yes?). Is the 1521 a port? Are you trying to reuse this port? (the first conn uses the same URL). What port does RMI use?
There is nothing in your snippet that stands out obviously as "this is wrong".
RMI uses networking. JDBC uses networking.
Try substituting some other networking code in place of the RMI code and see if you still get a null trying the second connection. As you say, if you leave out the RMI code the second get.conn works.
Try leaving out the first get.conn. Do the RMI and second get.conn.
Try this and try that and try some more. I once had this problem with a network printer that would not print. The code was fine. The URL was fine. The response from the network and printer were both fine. The damn thing just wasn't printing. Turns out there was this bit, yes a single bit, in one word of a property called the "start print bit". If this bit wasn't on, nothing happened. I tried every combination until I finally found it.
I wish you the best.

Microsoft SQL Server JDBC Connection with Enterprise

I'm trying to establish a JDBC connection to a SQL Server 2005 database server within XML Publisher Enterprise with no luck. What I have defined is:
url = jdbc:sqlserver://servername where servername is the database server name
Database Driver Class = com.microsoft.sqlserver.jdbc.SQLServerDriver
And I have placed the sqljdbc.jar file in the c:\OraHome_1\jdk\jre\lib directory as the help file states to do. Bounced the server, but still no luck.
Is there a log file for connection issues to help point you to the potential cause?

Thank you for your quick response. I followed the instruction on Tim's blog and still no luck. Here is the URL and Driver Class I entered:
URL-
jdbc:sqlserver://our server name:1433;databaseName=northwind
Database driver class -
com.microsoft.jdbc.sqlserver.sqlServerDriver
My question:
1. Am I right to use one of databases as northwind or should use server name after "databaseName="
2. I used username "sa" that is sql server user. Is it correct?
3. Some articles mentioned "sqljdbc.jar" file. Does this mean files mssqlserver.jar, msbase.jar and msutil.jar?
Thank you for your help!
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JDBC connection for Unidata (6.1) database

Does any one know from the BI Publisher JDBC data source how to connect to a Unidata 6.1 database?
I have installed the UnidataDK on the BI Publisher machien, but not sure what's the setting for the class driver and connection string.
And also what else need to do for Oracle BIPublisher applicaton to know the Unidata driver path etc.
Appreciate anyone can give me a light.

Hi,
according to this document, Unidata JDBC driver class name is {noformat}com.ibm.u2.jdbc.UniJDBCDriver and URL format is jdbc:ibm-u2://<host>[:<port>]/<account>[[;name=value]...]{noformat}

BI Publisher JDBC for Unidata database

Does any one know how to setup the BI Publisher - JDBC add a data source to connect to Unidata database?
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Any one been setup like that please give me a light.
thanks
CK

There is information to converting Crystal Reports to BIP Publishers
http://www.oracle.com/technology/products/xml-publisher/index.html
http://download.oracle.com/otndocs/xmlp/CrystaltoBIP.pdf
Maybe it could interest you
Regards
Christophe

Obtaining an oracle.sql.STRUCT through a pooled JDBC connection

Hello,
I am using WebLogic Server 10 and and Oracle 10 and I am trying to obtain a vendor-specific oracle.sql.STRUCT from a ResultSet using a pooled connection defined in Weblogic. I need the vendor-specific object, rather than simply the java.sql.Struct implementation, because a third party library requires it.
What gets returned in the ResultSet is a non-exposed WebLogic wrapper object which implements java.sql.Struct, but which cannot be cast to an oracle.sql.STRUCT. I can use reflection on this object to find and call the getVendorObj() method to obtain the oracle.sql.STRUCT, but this solution is not acceptable because this is not a published API and is not guaranteed not to change in future versions.
How can I reliably obtain a vendor-specific implementation of java.sql.Struct through a WebLogic connection pool in WebLogic Server 10?
Thanks for any advice,
-Dan Schwemlein

dan schwemlein wrote:
Joe,
Thanks again. With your guidance, I have arrived at the following approach, which I'll post for the benefit of others, and which I'd be thankful if you would validate:
1) Import the jar com.bea.core.datasource-1.0.0.0.jar from %BEA_HOME%\modules, which is the only location of the class WLConnection, which is the only class with the getVendorConnection() method you refer to.
2) Get the logical connection from the pooled data source, cast it to a WLConnection, call getVendorConnection() to obtain an OracleConnection (from the ojdbc jar), and use this connection to obtain the required oracle.sql.STRUCT from an OracleResultSet.
3) Be aware of the limitations and follow the guidelines in the document http://e-docs.bea.com/wls/docs81/jdbc/thirdparty.html#1043646 regarding security, error handling, releasing resources (close only the logical connection), etc.
Does this sound like the approach you had in mind?
Thanks again,
-Danyes.
Joe
>
Re: Obtaining an oracle.sql.STRUCT through a pooled JDBC connection
Posted: Jul 16, 2007 3:21 PM
dan schwemlein wrote:
Thanks for the quick response!I was working today...
Thank you for the information about the connection being closed.
I will look into using this configuration setting.
You say that you can describe a way to get a handle on an unwrapped
pool object using some documented WLS-specific code. Are you referring
here to the getVendorConnection() method?yes.
This method does not help me
get the oracle.sql.STRUCT object, because even the connection returned
by getVendorConnection() returns a wrapped WL java.sql.Struct object
from a call to getObject().I don't believe it. If you are running in WLS, with a local pool,
the getVendorConnection() will give you the Oracle connection,
which will give you an Oracle statement, etc, down to an oracle
STRUCT object. Once you have a direct reference to the oracle connection,
we're not in the picture when it returns something to you.
It would be great if getVendorObj() were
documented and could be counted on in future versions. To use this
method, one would still have to access it via Java reflection, because
the wrapper class and its getVendorObj() method would be exposed in an
API, correct? Could this method be exposed in the API, so that reflection
doesn't need to be used, or it is exposed somewhere that isn't documented?getVendorObj() is not yet exposed or therefore supported for the general
wrapped object, so you would have to start from the connection and
derive all subobjects from it.
Thanks again,
-Dan Schwemlein
Hello,
I am using WebLogic Server 10 and and Oracle 10 and I am trying to obtain a
vendor-specific oracle.sql.STRUCT from a ResultSet using a pooled connection
defined in Weblogic. I need the vendor-specific object, rather than simply
the java.sql.Struct implementation, because a third party library requires it.
What gets returned in the ResultSet is a non-exposed WebLogic wrapper object
which implements java.sql.Struct, but which cannot be cast to an oracle.sql.STRUCT.
I can use reflection on this object to find and call the getVendorObj() method to
obtain the oracle.sql.STRUCT, but this solution is not acceptable because this is
not a published API and is not guaranteed not to change in future versions.Understood. We all benefit from sticking to the J2EE standards,
but we could also wish Oracle had done so with it's driver objects.
I will assume your code is running in the WebLogic server, because
an external JVM can never access the real driver object, which will
always really be in the WLS JVM. No active JDBC object is serializable.
How can I reliably obtain a vendor-specific implementation of java.sql.Struct
through a WebLogic connection pool in WebLogic Server 10?There is no way to get a handle on an unwrapped pool object without using some
WLS-specific code, though I can describe a way with documented methods,
and/or I can get our documentation altered to say we'll support the
getVendorObj() method. We introspect every vendor object, and for those
implementations that have done the wise thing, projecting any non-standard
methods as an Interface, we are able to also project that Interface so
the vndor example code should work. However, in some poorly-done
cases, such as for some Oracle stuff, there is either no Interface,
or the Oracle code has extensions that take java.sql objects as input,
(at least that's the signature of the method) but two lines into the
method, the Oracle code assumes and casts the java.sql object to a concrete
Oracle object. In these use cases you need the direct unwrapped object.
We provide and document Connection.getVendorConnection(), and intend
getVendorObj() to serve the same for subobjects, but note the dangers
and responsibilities: We rely on our wrappers to implement the security
and thread-safety of our pooling system. Because user code can get
unrestricted access to the actual connection from most JDBC objects,
we can never trust that we have complete control once a vendor object
is exposed. Therefore, by default we will close and replace every JDBC
connection so exposed, as soon as the current thread is finished with
the pool connection. This hurts performance. We also document a pool
config setting that will tell us that you take responsibility for any such
problems, and not to close connections just because they've been exposed.
HTH,
Joe
Thanks for any advice,
-Dan Schwemlein

Test JDBC connection problem

Hi all,
I got a very weird problem when I click Test Connection Button.
I installed xml publisher Enterprise 5.6.2 in the server, I attempt to configure Jdbc connection in this server. once I click the Test Connection Button after I input all information, all information will be cleaned in this server, i can not get any message if the connection works well.But if i use url like http://serverIP:15101/xmlpserver/ to login xml publisher on other machine, I will get successful or error message.
who has same experience in JDBC configuration?how to solve it ,thanks in advance.

Apologies ... not really sure what the issue is. I assume you are talking about setting up the JDBC connection for a data source?
In that case the entries would be something like:
connection string: jdbc:oracle:thin:@host.company.com:1525:ora10g
un: oe
pw oe
driver class: oracle.jdbc.driver.OracleDriver

Set JDBC connection properties somewhere?

Hi:
I have BI Publisher 10.1.3.4 in Oracle WLS 10.3.3 and I'm using JDBC connections to get the report data. I'd like to set up the JDBC properties so that they encrypt things (and doing it here would mean no SSL database connection setup, no wallets, etc.) Where would I set these values (e.g. SQLNET.ENCRYPTION_CLIENT, SQLNET.ENCRYPTION_TYPES_CLIENT, SQLNET.CRYPTO_CHECKSUM_CLIENT, SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT).
If I can't do it in BI Publisher somehow, perhaps it is possible (or desirable?) to do it in the WLS connection pool properties somehow?
Thanks.

FYI - this information can be entered via the weblogic server db connection pool creation wizard.

Error while creating a report that uses Oracle OCI JDBC connectivity

Please let me know why my CR and LF characters are removed from my forum posting *****
Hi,
I was trying to create a report that uses Oracle OCI JDBC connectivity. I am using Eclipse3.4 download from "cr4e-all-in-one-win_2.0.2.zip". I have successfully created a JDBC OCI connection.
The connection parameters are given below:
URL: jdbc:oracle:oci8:@xe
Database: xe
username: <userName>
password: <password>
I have tested the above connection in Data source Explorer and it works fine!!!
But I am getting the following error when I drag-and-drop a table from the list of tables. Not sure what I am missing here? Any help is highly appreciated.
com.businessobjects.reports.jdbinterface.common.DBException: InvalidURLOrClassName
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     at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
     at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
     at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
     at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2979)
     at com.crystaldecisions.reports.queryengine.Table.u7(SourceFile:2408)
     at com.crystaldecisions.reports.dataengine.datafoundation.AddDatabaseTableCommand.new(SourceFile:529)
     at com.crystaldecisions.reports.common.CommandManager.a(SourceFile:71)
     at com.crystaldecisions.reports.common.Document.a(SourceFile:203)
     at com.businessobjects.reports.sdk.requesthandler.f.a(SourceFile:175)
     at com.businessobjects.reports.sdk.requesthandler.DatabaseRequestHandler.byte(SourceFile:1079)
     at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1163)
     at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:657)
     at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:163)
     at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:525)
     at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:523)
     at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
     at java.util.concurrent.FutureTask.run(Unknown Source)
     at com.businessobjects.crystalreports.designer.core.util.thread.ExecutorWithIdleProcessing$3.doWork(ExecutorWithIdleProcessing.java:182)
     at com.businessobjects.crystalreports.designer.core.util.thread.AbstractCancellableRunnable.run(AbstractCancellableRunnable.java:69)
     at com.businessobjects.crystalreports.designer.core.util.thread.PriorityTask.run(PriorityTask.java:75)
     at com.businessobjects.crystalreports.designer.core.util.thread.PriorityCompoundCancellableRunnable.runSubtask(PriorityCompoundCancellableRunnable.java:187)
     at com.businessobjects.crystalreports.designer.core.util.thread.PriorityProgressAwareRunnable.runSubtask(PriorityProgressAwareRunnable.java:90)
     at com.businessobjects.crystalreports.designer.core.util.thread.PriorityCompoundCancellableRunnable.doWork(PriorityCompoundCancellableRunnable.java:144)
     at com.businessobjects.crystalreports.designer.core.util.thread.AbstractCancellableRunnable.run(AbstractCancellableRunnable.java:69)
     at com.businessobjects.crystalreports.designer.core.util.thread.ExecutorWithIdleProcessing$IdleTask.run(ExecutorWithIdleProcessing.java:320)
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Thanks
Karthik
Edited by: KARTHIK1 on Oct 14, 2009 9:38 PM

Hi Ted,
Thanks for the feedback. I was able to create a report in Creystal Reports Designer 2008 using OCI. It is not allowing only in the Eclipse plugin. In our environment we are not allowed to user Oracle thin connections and ONLY OCI is allowed.
1) Can you please let me know if there is a way to do this?
2) Will it allow data sources using native database driver?
3) If so, can I use JRC to create these reports from a desktop java program?
Thanks & Regards
Karthik
Edited by: KARTHIK1 on Oct 15, 2009 4:38 PM

Issue JDBC connection pool with Glassfish 3.1.2.2 and Oracle XE 11gR2

Hello,
I am experiencing an issue with pinging a JDBC connection Pool.
I installed the following without any warnings or errors:
Operating System: Oracle Enterprise Linux 5
Oracle XE 11gR2 (11.2.0.2.0) database
Glassfish 3.1.2.2
I will refer to the steps I did after the installations
1) In the .profile file of the OS I add the following:
JRE_HOME=/usr/java/jre1.6.0_31; export JRE_HOME
JAVA_HOME=/usr/java/jdk1.6.0_31; export JAVA_HOME
GLASSFISH_DIR=/u01/glassfish3
GLASSFISH_HOME=/u01/glassfish3/glassfish
DERBY_HOME=$GLASSFISH_DIR/javadb
OPEN_MQ_HOME=$GLASSFISH_DIR/mq
PATH=:$JAVA_HOME/bin:$JRE_HOME/bin:$PATH:$HOME/bin:$GLASSFISH_HOME/bin:$DERBY_HOME/bin:$OPEN_MQ_HOME/bin
export GLASSFISH_HOME
export DERBY_HOME
export OPEN_MQ_HOME
export PATH
LD_LIBRARY_PATH=/u01/app/oracle/product/11.2.0/xe/lib; export LD_LIBRARY_PATH
. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh
2) I copied the ojdbc6.jar to the $GLASSFISH_HOME/domains/domain1/lib
3) I login to the Glassfish admin console and created a new JDBC Connection Pool.
Pool Name: ds_orasys
Resource Type: javax.sql.DataSource
Datasource Classname: oracle.jdbc.pool.OracleDataSource
User: [myschema]
Password: [myschema password]
URL: jdbc:oracle:thin:@localhost:1521:xe
When I ping the connection pool I get the following message in the server log:
[#|2012-10-23T12:14:37.069+0300|WARNING|glassfish3.1.2|javax.enterprise.resource.resourceadapter.com.sun.enterprise.connectors.service|_ThreadID=22;_ThreadName=Thread-2;|RAR8054: Exception while creating an unpooled [test] connection for pool [ ds_orasys ], Connection could not be allocated because: Invalid Oracle URL specified|#]
[#|2012-10-23T12:14:37.071+0300|SEVERE|glassfish3.1.2|org.glassfish.admingui|_ThreadID=19;_ThreadName=Thread-2;|RestResponse.getResponse() gives FAILURE. endpoint = 'http://212.205.62.217:4848/management/domain/resources/ping-connection-pool.json'; attrs = '{id=ds_orasys}'|#]
I tried to use different jar files. I used ojdbc6dms.jar and ojdbc14.jar.
I also copied the jar files in the $GLASSFISH_HOME/domains/domain1/lib/ext directory as some people suggested. Still no luck. I keep getting the same error messages in the server.log
Can anybody help me out or point me to the right direction.
Thank you in advance

The error is in the URL. It was in front of my eyes and I couldn't see the error. I skipped the ':' before the '@' when I created the pool. It is working fine now.

JDBC Connection pool recovery after DB server restart

I am finding that Kodo is throwing the following exception after I restart
my database server (mysql). I am doing the database server restart while my
application server is idle, so it is not during a transaction.
Communication link failure: java.net.SocketException [code=0;state=08S01]
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper:
This is presumably due to the JDBC connection pooling. Is there a
configuration setting that allows Kodo to detect such failures and reconnect
to the database server without exposing this problem to the application
code? For example, WebLogic Server's JDBC connection pool has a setting that
enables testing a connection and recovering from such failures before
allocating it from the pool.
Ben

This is presumably due to the JDBC connection pooling. Is there a
configuration setting that allows Kodo to detect such failures and reconnect
to the database server without exposing this problem to the application
code?Not right now. You can log an enhancement request with our bug database:
http://bugzilla.solarmetric.com/

JDBC connection pool failures when used by JMS stores

          We are using WebLogic 6.1 sp2. We defined a separate connection pool for use by
          a JMS Store.
          <JDBCConnectionPool Name="sybaseJMSPool"
          Targets="cluster00"
          InitialCapacity="2"
          MaxCapacity="10"
          DriverName="com.sybase.jdbc2.jdbc.SybDriver"
          Properties="[email protected]@;[email protected]@;charset=utf8"
          URL="jdbc:sybase:Tds:@jms.db.host@/@jms.db.name@"/>
          (note that the @xxx@ string are replaced by actual values).
          We are using Sybase Jconnect 5.5 to a Sybase ASE 12.5 database.
          We deployed this configuration on a number of environments (testing, staging,
          ..). The actual hardware and network configuration is different for the different
          system, but the WebLogic domain stays the same regarding this issue.
          On the test system we frequently get the following exceptions:
          <Aug 13, 2002 1:56:04 PM CEST> <Alert> <JMS> <www00-test> <node00>
          <ExecuteThread: '6' for queue: 'JMS.TimerClientPool'> <> <> <040048>
          <JMSServer "JMSServer00", store failure while writing message for topic
          OrderChangeTopic, java.io.IOException: JMS JDBC store, connection pool =
          <sybaseJMSPool>, prefix = <JMS00>: write failed
          java.sql.SQLException: JZ006: Caught IOException:
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          closed.
          at com.sybase.jdbc2.jdbc.ErrorMessage.raiseErrorCheckDead
          (ErrorMessage.java:715)
          at com.sybase.jdbc2.tds.Tds.handleIOE(Tds.java:3124)
          at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1412)
          at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1341)
          at com.sybase.jdbc2.jdbc.SybStatement.doCancel(SybStatement.java:564)
          at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1672)
          at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate
          (SybStatement.java:1625)
          at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate
          (SybPreparedStatement.java:91)
          at com.p6spy.engine.logging.P6LogPreparedStatement.executeUpdate
          (P6LogPreparedStatement.java:179)
          at weblogic.jdbc.pool.Statement.executeUpdate(Statement.java:293)
          at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1246)
          at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
          at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          .>
          java.io.IOException: JMS JDBC store, connection pool = <sybaseJMSPool>, prefix
          = <JMS00>: write failed
          java.sql.SQLException: JZ006: Caught IOException:
          com.sybase.jdbc2.jdbc.SybConnectionDeadException: JZ0C0: Connection is already
          closed.
          at com.sybase.jdbc2.jdbc.ErrorMessage.raiseErrorCheckDead
          (ErrorMessage.java:715)
          at com.sybase.jdbc2.tds.Tds.handleIOE(Tds.java:3124)
          at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1412)
          at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1341)
          at com.sybase.jdbc2.jdbc.SybStatement.doCancel(SybStatement.java:564)
          at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1672)
          at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate
          (SybStatement.java:1625)
          at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate
          (SybPreparedStatement.java:91)
          at com.p6spy.engine.logging.P6LogPreparedStatement.executeUpdate
          (P6LogPreparedStatement.java:179)
          at weblogic.jdbc.pool.Statement.executeUpdate(Statement.java:293)
          at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1246)
          at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
          at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          at weblogic.jms.store.JDBCIOStream.throwIOException
          (JDBCIOStream.java:1213)
          at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1256)
          at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
          at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          Before that this message appeared:
          <Aug 13, 2002 11:31:16 AM CEST> <Error> <ConnectionManager> <www00-test>
          <node00> <ExecuteThread: '26' for queue: 'default'> <> <> <000000>
          <Closing: 'weblogic.rjvm.t3.T3JVMConnection@795af6' because of: 'Server
          received a message over an uninitialized connection: 'JVMMessage from: 'null'
          to: '-4555218188801970213S:192.168.13.1:[7001,7001,7002,7002,7001,7002,-
          1]:ADIS:node00' cmd: 'CMD_REQUEST', QOS: '101', responseId: '1',
          invokableId: '287', flags: 'JVMIDs Not Sent, TX Context Not Sent', abbrev
          offset: '34'''>
          This problem did not occur on another system which was used during a 2 day stress
          testing session.
          It seems that the problem occurs after a period in which no user request where
          made. The user requests trigger EJB's that start sending JMS messages.
          When the problem occurs, the JMS messaging systems seems to lock up as no messages
          are received anymore by the different listeners (MDBs).
          Undeploying and redeploying the JBDC connection pool solves the problem. This
          solution is unacceptable in case of a production system.
          A similarly defined connection pool, which is used by the EJBs to make database
          connection, does not manifest this problem.
          <JDBCConnectionPool Name="sybasePool"
          Targets="cluster00"
          InitialCapacity="10"
          CapacityIncrement="5"
          MaxCapacity="50"
          PreparedStatementCacheSize="150"
          DriverName="com.sybase.jdbc2.jdbc.SybDriver"
          Properties="[email protected]@;[email protected]@;JCONNECT_VERSION=6;charset=utf8"
          URL="jdbc:sybase:Tds:@db.host@/@db.name@"/>
          The JDBC connection pool is used as follows by the JDBC store
          <JMSJDBCStore ConnectionPool="sybaseJMSPool" Name="JDBCStore00" PrefixName="JMS00"/>
          <JMSServer Name="JMSServer00" Store="JDBCStore00" Targets="node00">
          <JMSTopic JNDIName="ADIS.JMSError" JNDINameReplicated="false" Name="ErrorTopic"/>
          <JMSTopic JNDIName="ADIS.Status"
          Name="StatusTopic" RedeliveryDelayOverride="300000"/>
          <JMSTopic JNDIName="ADIS.OrderChange" JNDINameReplicated="false"
          Name="OrderChangeTopic" RedeliveryLimit="3"/>
          </JMSServer>
          Turning on the "Test Reserved Connection" with a appropriate test table does not
          help.
          Some sources on the internet tell us that JZ0C0 errors in the Jconnect driver
          can be related to network problems. Nevertheless the connection pool should be
          able to cope with this.
          Can you provide any solution for this ? Or give us hints what can cause the problem


Zhenhao Qi wrote:
thanks! Joe.
The SQL statement itself can no longer be simplified, the long excuation time is due to the database size and complicated Select criteria. I can easily reproduce the problem by using this SQL. I tried "BEA's Oracle driver (Type 4): Version 8.1.7,9.0.1,9.2.0". the question can be dissect into 2 pieces:
1) why the jdbc connection (using oracle.jdbc.OracleDriver) won't return anything if the SQL execution time > 5min, that is probably the Oracle's problem
2) why the occupied connection pool won't release even I set "Statementtimeout=600", this is Weblogic's problem.
ZhenhaoHi. Yes, (1) is oracle's problem. (2) may also be. The JDBC spec has very few
allowances for one thread to interrupt a second thread's JDBC call. If we
transmit your timeout request by calling setQueryTimeout() on the oracle
statement, and if you have a weblogic-controlled transaction we call
Statement.cancel() on any ongoing statement, we end up relying on whether
the Oracle driver implements and responds to those calls.
Are you doing weblogic-controlled transactions? Are you/can you
call Statement.setQueryTimeout() on your statements, or are these
generated JDBC queries?
If you can duplicate the problem using the weblogic.jdbc.oracle.OracleDriver
we have some other debug avenues. This would be good even if you really
want to use the thin driver, because we will do the same JDBC calls to
either driver, and the debug would prove (if) we set up a query timeout
and if we call cancel(). If we do, then we can know that it is the Oracle
driver failing in these regards.
Joe

JDBC Connection pools and clusters (is max connection for entire cluster?)

Hi,
Quick question.
When using JDBC connection pools in WAS 6.40 (SP13) in a clustered environment. Are the max connections the number
a)Each application server can use
b)The entire cluster can use
Would believe a), but I'd like it confirmed from someoneelse

Hi Dagfinn,
your assumption is correct. Therefore, in a cluster environment you'd need to make sure the DB can open <i>Number of nodes X max connections</i>.

Bi publisher JDBC connection

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