Max. Pool size for JmsXA

[rana24]

Hi,
We are running our application with JBoss 4.2.3 GA with JBM 1.4.0SP3.
I have just changed my anti pattern ,connection creation code to JmsXA lookup. I could see a great performance improvment.

With default setting i am getting below error. I guess it has something do with default max pool size, which is 20. in hajndi-jms-ds.xml
i.e. <max-pool-size>20</max-pool-size>

 Could not create a session: javax.resource.ResourceException: No ManagedConnections available within configured blocking timeout ( 30000 [ms] )
javax.jms.JMSException: Could not create a session: javax.resource.ResourceException: No ManagedConnections available within configured blocking timeout ( 30000 [ms] )
 at org.jboss.resource.adapter.jms.JmsSessionFactoryImpl.allocateConnection(JmsSessionFactoryImpl.java:421)
 at org.jboss.resource.adapter.jms.JmsSessionFactoryImpl.createQueueSession(JmsSessionFactoryImpl.java:145)
 at com.alservices.imaging.export.process.util.AuditUtil.setjobDocResource(AuditUtil.java:281)

I have increased it max-pool-size and i could reduce frequency of above error. Our application does a heavy usage of messaging.
I have two basic question
1) Above error is because of low pool size ?
if Yes , what is the max. limit for max.pool.size
2) If above error is not because of pool size , what could be other reason ?

Thanks in advance.
Hoping for right direction.
Rana

[rana24]

Jboss Tech Team:

Anyone who can provide some pointers here?

[ataylor]

1) Above error is because of low pool size ?

I would say yes. also increasing the blocking timeout should also help. This is an app server question not a messaging question. I would post on the jboss forum and they should be able to help with settings etc.

[rana24]

Thanks Andy.

[rana24]

Andy,
This will be part of which forum exactly, will it be JCA forum ?

[timfox]

"rana24" wrote:
Andy,
This will be part of which forum exactly, will it be JCA forum ?

The thing you are using when you are looking up the thing at java:/JmsXA is the generic JMS JCA resource adapter.

It's not part of the JBM project and is handled by the JCA team. The correct forum to post on, is therefore the JCA forum.

There are wiki pages about this too.

[rana24]

I already put up same question to JCA people. Hoping for a pointer from them.
Thanks Tim.