[jira] Commented: (POOL-151) Eviction thread is able to remove (destroy) in-flight (borrowed) objects

["Phil Steitz (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/POOL-151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12855261#action_12855261 ] 

Phil Steitz commented on POOL-151:
----------------------------------

Are you sure your factory is threadsafe?  Does the factory cache or pool sessions itself?  I am confused similarly to Mark on the timestamps - the objects being evicted are not old enough to be closed by the evictor. 

> Eviction thread is able to remove (destroy) in-flight (borrowed) objects
> ------------------------------------------------------------------------
>
>                 Key: POOL-151
>                 URL: https://issues.apache.org/jira/browse/POOL-151
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 1.2, 1.4, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4
>            Reporter: Hassan Sajjad
>            Priority: Blocker
>
> Under high concurrent use, the eviction thread can temper with an in-use object from the pool, potentially causing catastrophic results, as illustrate in the below log from our use. Note the object - in our case JMSSession is closed in-flight (after message send but before commit), causing the commit to fail with {{javax.jms.IllegalStateException: MQJMS1024: session closed}} error.
> {noformat}
> 2009-10-12 15:08:40,254 DEBUG [asyncDelivery59] Borrowed session com.ibm.mq.jms.MQQueueSession@40bc88 for jms connector 
> 2009-10-12 15:08:40,341 DEBUG [Timer-0] Physically closing com.ibm.mq.jms.MQQueueSession@40bc88 for connector 
> 2009-10-12 15:08:40,669 DEBUG [asyncDelivery59] Returning session com.ibm.mq.jms.MQQueueSession@40bc88 for jms conn
> ector
> 2009-10-12 15:08:40,433 ERROR [asyncDelivery59] Exception caught while committing transaction [com.ibm.mq.jms.MQQueueSession@40bc88]
> {noformat}

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