[jboss-jira] [JBoss JIRA] Created: (JBRULES-1919) JBRMS has memory leak for RuleAgent url access

[Richard Ambridge (JIRA)]

JBRMS has memory leak for RuleAgent url access
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                 Key: JBRULES-1919
                 URL: https://jira.jboss.org/jira/browse/JBRULES-1919
             Project: JBoss Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-guvnor
    Affects Versions: 4.0.7
         Environment: Solaris, JBOSS server and Glassfish 9
            Reporter: Richard Ambridge
            Assignee: Mark Proctor


Drools JBRMS has a memory leak when the RulesAgent accesses the BRMS to check the status of a snapshot.

If a RuleAgent is configured with
url=http://localhost:8080/.../package/NAME/SNAPSHOT
poll=60

then the memory usage in the VM will increase until eventually it runs out of memory.
This can be observed using jconsole.


The problem lies in 
drools-jbrms
org.drools.brms.server.files.FileManagerUtils.java

This creates a Seam EVENT each time the RuleAgent accesses the GUI,
the EVENT is only in context for the event, so it creates a RulesRepository during creation,
but it never releases the RulesRepository so a session is left open, and the Event cannot be GC.

Fix is

46d45
< import org.jboss.seam.annotations.Destroy;
64,67d62
<     @Destroy
<     public void close(){
<         repository.logout();
<     }



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