[jbossts-issues] [JBoss JIRA] Commented: (JBTM-352) Memory leak in TransactionReaper._timeouts
Andrew Dinn (JIRA)
jira-events at lists.jboss.org
Fri Mar 28 12:01:51 EDT 2008
[ http://jira.jboss.com/jira/browse/JBTM-352?page=comments#action_12405454 ]
Andrew Dinn commented on JBTM-352:
Yes, this will work but
i) it misses another issue -- when the OTSManager only has a non-local Control it passes the Control to remove() which is bound not to work
ii) it will still suck -- not only will the iteration take a long time it will also block concurrent transaction inserts/removes from other threads while it is running so kiss throughput goodbye
I have a proper fix which I still need to test. I'll attach the 2 files you need if you want to try it.
> Memory leak in TransactionReaper._timeouts
> Key: JBTM-352
> URL: http://jira.jboss.com/jira/browse/JBTM-352
> Project: JBoss Transaction Manager
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: Transaction Core
> Affects Versions: 4.3.0.GA
> Environment: Compiled 4.3.0.GA for the EAP 4.3 as JTS according to the instructions (by setting JBOSS_HOME to jboss-5.0.0.Beta4) on RHEL4.
> Run ~ 1500 JMS transactions in EAP 4.3 all configuration on RHEL4 to see it leaks.
> Used Sun jdk 126.96.36.199
> Reporter: Ivan Szanto
> Assigned To: Andrew Dinn
> Fix For: 4.4.CR1
> Attachments: TransactionReaper.java, TransactionReaper.zip
> The leak can also be seen by using the debugger to check the number of entries in TransactionReaper._timeouts after a couple of transactions.
> It appears that the TransactionReaper.insert method uses ControlWrapper objects as keys when putting elements into the hashtable, but the TransactionReaper.remove method sometimes unsuccessfully tries to use Uid ojbects to remove them.
> I will post a corrected version of TransactionReaper.java.
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