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https://issues.apache.org/jira/browse/AMQ-4366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13626330#comment-13626330
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Torsten Mielke commented on AMQ-4366:
-------------------------------------
I am not aware of any side effects when applying the workaround and setting
idleTimeout=0.
As a consequence sessions won't be invalidated just because they were idle for
a specific period of time. But that should generally not be a problem.
I had a customer testing this idleTimeout=0 in their integration test env and
it did not cause any problems.
Also, its my understanding that you generally should not loose any messages due
to the "The Session is closed" error.
Typically the session is checked for validity right *before* sending the
message. You app code of course needs to handle the error and should not assume
that the msg was sent.
> PooledConnectionFactory closes connections that are in use
> ----------------------------------------------------------
>
> Key: AMQ-4366
> URL: https://issues.apache.org/jira/browse/AMQ-4366
> Project: ActiveMQ
> Issue Type: Bug
> Components: activemq-pool
> Affects Versions: 5.7.0, 5.8.0
> Reporter: Petr Janata
> Assignee: Timothy Bish
> Fix For: 5.9.0
>
> Attachments: poolConClose.diff
>
>
> {{PooledConnectionFactory}} closes connections that are still referenced and
> should not be closed. Happens only when connection idle or expire time
> passes. Calling {{createConnection}} after that time will invalidate the
> connection and all previously obtained {{Sessions}} will behave as closed.
> Due to default 30 second idle timeout, it is likely not to cause problems
> when:
> * connection is continually in use
> * all {{PooledConnection}} s are borrowed at startup
> Client with session whose connection was prematurely closed will see similar
> stacktrace:
> {noformat}
> javax.jms.IllegalStateException: The Session is closed
> at
> org.apache.activemq.ActiveMQSession.checkClosed(ActiveMQSession.java:731)
> at
> org.apache.activemq.ActiveMQSession.configureMessage(ActiveMQSession.java:719)
> at
> org.apache.activemq.ActiveMQSession.createBytesMessage(ActiveMQSession.java:316)
> at
> org.apache.activemq.pool.PooledSession.createBytesMessage(PooledSession.java:168)
> {noformat}
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