[jboss-jira] [JBoss JIRA] (DROOLS-1487) Parallel agenda cycles itself or throws NPE

[Tibor Zimányi (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-1487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tibor Zimányi updated DROOLS-1487:
----------------------------------
    Labels: parallel-agenda reported-by-qe  (was: reported-by-qe)


> Parallel agenda cycles itself or throws NPE
> -------------------------------------------
>
>                 Key: DROOLS-1487
>                 URL: https://issues.jboss.org/browse/DROOLS-1487
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 7.0.0.Beta7
>            Reporter: Tibor Zimányi
>            Assignee: Mario Fusco
>              Labels: parallel-agenda, reported-by-qe
>
> Running AdvOperatorsExpertBenchmark benchmarks from our kie-benchmarks suite with parallel agenda option, the benchmark either cycles itself or throws NPE [1]. I created a "reproducer" here[2]. Be aware that this is failing nondeterministically, so with high probability it is a nasty race condition. 
> I tried to debug this a bit and this is the output of some variables that is available on this line [3]:
> Returned fire count: 0
> Head: null
> Group: AgendaGroup 'MAIN'
> Group is auto deactivate: true
> Limit reached: false
> IsInternalFire: false
> IsFiring: true
> [1] http://pastebin.com/sjLjQwgX
> [2] https://github.com/kiegroup/kie-benchmarks/pull/8/files
> [3] https://github.com/kiegroup/drools/blob/3038a1b9287978069bcb2765dc684f69683465a4/drools-core/src/main/java/org/drools/core/common/DefaultAgenda.java#L1084



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