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https://issues.apache.org/jira/browse/GERONIMO-1155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevan Miller closed GERONIMO-1155.
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> ActiveMQSessions build up during DayTrader execution
> ----------------------------------------------------
>
> Key: GERONIMO-1155
> URL: https://issues.apache.org/jira/browse/GERONIMO-1155
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Components: ActiveMQ
> Affects Versions: 1.0-M5
> Environment: Suse / JDK 1.4
> Reporter: Kevan Miller
> Fix For: 1.0
>
> Attachments: RemoveSession.patch, RemoveSessionUnified.patch
>
>
> While running DayTrader, the server got an OutOfMemoryException. At the time
> of failure, there were over 17,000 ActiveMQSession instances registered with
> an ActiveMQ TransactionContext. I believe that Sessions are being registered
> with the ActiveMQManagedConnection TransactionContext, but will never be
> unregistered via TransactionContext.removeSession(Session).
> In a standalone environment, the TransactionContext is owned by the Session.
> So, a Session does not need to be removed from the TransactionContext. Their
> lifetimes are the same.
> In a ManagedConnection environment, a TransactionContext is created for the
> ActiveMQManagedConnection. An RATransactionContext is generated for each new
> Session. This RATransactionContext will proxy any Session registrations to
> the ManagedConnection TransactionContext. So, each new Session will be
> registered with the ManagedConnection TransactionContext, but never removed.
> The above is from my reading of the code. I don't currently have an
> environment where I can directly test this. Hope to have some empirical
> results, tomorrow.
> The obvious fix is to add the following to ActiveMQSession.doClose():
> this.transactionContext.removeSession(this);
> I'll post a patch. Let me know if I'm missing something...
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