Yes, the root cause of the problem is that the JNDI lookup of the data source by the application fails. This should help address common issues with this component before calling IBM support and save you time. associateConnection(ConnectionManager.java:2335) at com.ibm.ejs.jms.JMSSessionHandle. We have seen this exception happens when connection is idle for long time, and usually the 1st retry resolves this.. have a peek at this web-site
Yes, the root cause of the problem is that the application server JVM is not properly configured to load the native libraries. No, continue to question 7. An example of a typical error message that might occur is: DSRA8040I: Failed to connect to the DataSource. The first few lines at the top of the stack trace for the J2CA0020E error look like this: J2CA0020E: The Connection Pool Manager could not allocate a Managed Connection: java.lang.IllegalStateException: Internal
No, continue to question 9. Is the Minimum Connections property in the connection pool set to 0? In addition, you can use WebSphere Application Server tracing to identify connection leaks. Check the properties that you have specified on the data source to ensure that they are correct.
No, continue to question 4. No, continue to question 6. The way the code appears to be written at the moment, the application will never be able to recover from the situation where the JMS Connection it is using has been If it occurs for every connection attempt, the root cause of the problem is likely that the data source properties are misconfigured.
java.sql.SQLException: [IBM][SQLServer JDBC Driver][SQLServer]Could not find stored procedure 'master..xp_jdbc_open'. Yes, this means that two or more connections were obtained within one local transaction containment (LTC). It is also preferable for you to have access to the source code for your application(s). http://www.ibm.com/support/docview.wss?uid=swg21247168 Also check with your DBA to make sure that the userid and password that you are using are correct for connecting to the database.
at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java(Compiled Code)) at com.ibm.ejs.j2c.ConnectionManager.associateConnection(ConnectionManager.java(Compiled Code)) at com.ibm.ejs.jms.JMSSessionHandle.getOpenSession(JMSSessionHandle.java(Compiled Code)) at com.ibm.ejs.jms.JMSQueueSessionHandle.getOpenQueueSession(JMSQueueSessionHandle.java(Compiled Code)) at com.ibm.ejs.jms.JMSQueueSenderHandle.
Are you seeing high memory usage or java.lang.OutOfMemoryErrors due to a high statement cache size? http://www.mqseries.net/phpBB/viewtopic.php?p=69281&sid=2271447cd68f63d13096f09ddf9a0029 No, continue to question 2. Refer to your database documentation or your DBA for more information about why a particular error or exception might have occurred. Was the attempt to connect to the database using the Test Connection button successful?
As part of this processing, the application server's Connection Manager is invoked to try to assign this particular application thread a JMS Session to use. Check This Out No, continue to question 9. For other backends, a fatal connection error occurs. Is the Purge Policy set to EntirePool for the connection pool?
No, continue to question 6. Review the documentation on how to handle the StaleConnectionException and implement this in your application code. No, continue to question 7. Source The first option would be for the application owner to look at modifying their application code so that it behaves like this: Try to create a JMS Text Message.
Is the web container thread pool size set too high or is the isGrowable checkbox checked in your configuration? Yes, go to the Troubleshooting stale connection problems section. Enjoy Back to top hhoang Posted: Thu Aug 19, 2004 12:54 pm Post subject: Update: Lower max connections from 500 to 100 NoviceJoined: 14 Nov 2002Posts: 21 If I lowered the
Yes, go to the Troubleshooting JDBC connection problems section. This means that if the connection goes down you WILL have to restart WAS. Check the SystemOut.log to see if a NameNotFoundException occurs when the application tries to use the data source. It really depends what you want to do with your applications.
The exception which was received is javax.jms.IllegalStateException: MQJMS3037: Message Producer is closed [2004-07-02 14:56:42,030] [ WARN] ParsingCommandProcessorBean - MQJMS3037: Message Producer is closed javax.jms.IllegalStateException: MQJMS3037: Message Producer is closed at com.ibm.mq.jms.MQMessageProducer.checkProducerOpen() Yes, continue to question 4. No, continue to question 9. have a peek here Watson Product Search Search None of the above, continue with my search Troubleshooting connection pooling (J2C) problems in WebSphere Application Server TroubleShootingDocument; TroubleShootingFlowDocument Technote (troubleshooting) Problem(Abstract) Troubleshooting for connection pooling problems
I guess, we can start using MQ API directly and without using connection pool can solve this problem. What do you think of the drawbacks beside performance? A java.lang.UnsatisfiedLinkError occurs when the JVM is unable to load a native library that is needed by the JDBC driver. Some additional information on the J2CA0020E error can be found in the following technote: http://www-01.ibm.com/support/docview.wss?uid=swg21206150 Resolving the problem Change the following properties for connection Pool and Session Pool properties: Unused timeout
You should see one or more linked exceptions. Most exceptions that occur when a connection factory is used to connect to a messaging system will have the com.ibm.ejs.jms package in the stack trace of the exception. Basically, WAS holds a live connections to MQ. Is the application handling the StaleConnectionException properly by catching the exception and then retrying the connection?
Has anybody seen this before and if so could they point me in a direction towards removing it altogether? Back to top fjb_saper Posted: Mon Aug 16, 2004 9:42 am Post subject: Grand PoobahJoined: 18 Nov 2003Posts: 18661Location: LI,NY Quote: We've a bunch of WAS running on a farm. Here is the Connection Pool setting for the WebSphere MQ Queue Connection Factories: Connection Timeout: 180 Max Connections: 500 Min Connections: 1 Reap Time: 180 Unused Timeout: 300 Aged Timeout: 600 Yes, the root cause of the problem is that the connection to the MQ queue manager is broken or invalid.
thanks! The resource reference is configured in the web, EJB, or application client deployment descriptor. This section does not include ConnectionWaitTimeoutExceptions or StaleConnectionExceptions, which are covered in subsequent sections. Have you configured your data source to do this?
Resolving the problem Tab navigation Learn more Troubleshoot- selected tab, Collect data Steps to help resolve connection pooling problems Are you having a problem using a data source to establish a The exception is: java.lang.IllegalStateException: setManagedConnection: illegal state exception. Back to top hhoang Posted: Mon Aug 16, 2004 7:41 am Post subject: Everything works fine if restart WAS NoviceJoined: 14 Nov 2002Posts: 21 We've a bunch of WAS running on
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