[jboss-jira] [JBoss JIRA] (JBRULES-3583) Retracting an event with an explicit expiration results in memory leak

[Mark Proctor (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-3583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor updated JBRULES-3583:
----------------------------------

    Assignee: Edson Tirelli  (was: Mark Proctor)

    
> Retracting an event with an explicit expiration results in memory leak
> ----------------------------------------------------------------------
>
>                 Key: JBRULES-3583
>                 URL: https://issues.jboss.org/browse/JBRULES-3583
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core
>    Affects Versions: 5.4.0.Final
>         Environment: Windows 7, Java 1.6
>            Reporter: Ladd Asper
>            Assignee: Edson Tirelli
>              Labels: expiration, leak, memory, retract
>
> package drools.tests
> import drools.tests.MyEvent
> import java.util.List
> declare MyEvent @role(event) @expires(14d) end   // <====== leaks
> //declare MyEvent @role(event) end               // <====== doesn't leak
> 		
> rule "UpdateAndRetractOldEvents"
>     salience 10000
> when
>     $old : MyEvent( $key : key )
>     MyEvent( key == $key, this after $old )
> then
>     retract( $old );
>     System.err.println( "retracted $old" );
> end
> My test case is a loop that does this:
> MyEvent firstA = new MyEvent( "first", "firstA" ); // key, value
> MyEvent firstB = new MyEvent( "first", "firstB" ); // key, value
> ...
> ksession.insert( firstA );
> ksession.fireAllRules();
> Thread.sleep( 50 );
> ksession.insert( firstB );
> ksession.fireAllRules();
> Memory consumption stays flat if MyEvent is declared without an expiration time.  Memory consumption increases linearly if MyEvent is declared with an expiration time.

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