[jboss-jira] [JBoss JIRA] (DROOLS-498) Memory leak in stateful session after retracting facts

[Vitaly Lomov (JIRA)]

Vitaly Lomov created DROOLS-498:
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             Summary: Memory leak in stateful session after retracting facts
                 Key: DROOLS-498
                 URL: https://issues.jboss.org/browse/DROOLS-498
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 6.0.1.Final
            Reporter: Vitaly Lomov
            Assignee: Mark Proctor
            Priority: Minor


After adding many simple facts into the stateful session and then removing them, the factHandles for the removed facts are still referenced by the session. Eventually getting "java.lang.OutOfMemoryError: GC overhead limit exceeded" with the stack trace (sometimes) similar to DROOLS-411.

Someone on StackOverflow suggested iterating through whatever factHandles remain after deletion and delete those, but I get no factHandles (correct, since I removed all facts).

See screenshot for objects in memory _after_ deleting all facts.



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