[jboss-jira] [JBoss JIRA] (JBRULES-3569) Avoid JITting constraint if the used PermGen size is above a given threshold

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-3569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved JBRULES-3569.
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    Fix Version/s: 5.4.1.Final
                   5.5.0.Beta1
       Resolution: Done

    
> Avoid JITting constraint if the used PermGen size is above a given threshold
> ----------------------------------------------------------------------------
>
>                 Key: JBRULES-3569
>                 URL: https://issues.jboss.org/browse/JBRULES-3569
>             Project: Drools
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>            Reporter: Mario Fusco
>            Assignee: Mario Fusco
>             Fix For: 5.4.1.Final, 5.5.0.Beta1
>
>
> JITting all the constraints used in a large rule base can cause an OutOfMemory error in the PermGen space. Before to JIT a constraint it is necessary to check if the PermGen space currently in use is above a (optionally configurable) threshold and in this case avoid the JITting and let the constraint to be evaluated in interpreted mode.

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