[jboss-jira] [JBoss JIRA] (DROOLS-690) Deadlock on LeftTupleSets

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-690.
--------------------------------
    Fix Version/s: 6.2.0.Final
       Resolution: Done


Fixed by https://github.com/droolsjbpm/drools/commit/30b295c7c50d3ab283c22bab025bb7b71bb50f87

> Deadlock on LeftTupleSets
> -------------------------
>
>                 Key: DROOLS-690
>                 URL: https://issues.jboss.org/browse/DROOLS-690
>             Project: Drools
>          Issue Type: Bug
>            Reporter: Mario Fusco
>            Assignee: Mario Fusco
>             Fix For: 6.2.0.Final
>
>
> The following deadlock has been reported:
> {code}
> Java stack information for the threads listed above:
> ===================================================
> "drools-worker-2":
>         at org.drools.core.common.DefaultAgenda.addEagerRuleAgendaItem(DefaultAgenda.java:282)
>         - waiting to lock <0x00000007d8fc80d0> (a java.util.LinkedList)
>         at org.drools.core.reteoo.PathMemory.queueRuleAgendaItem(PathMemory.java:153)
>         at org.drools.core.reteoo.PathMemory.doLinkRule(PathMemory.java:120)
>         - locked <0x00000007d91f34d0> (a org.drools.core.reteoo.PathMemory)
>         at org.drools.core.reteoo.PathMemory.linkSegment(PathMemory.java:90)
>         at org.drools.core.reteoo.SegmentMemory.notifyRuleLinkSegment(SegmentMemory.java:170)
>         at org.drools.core.reteoo.LeftInputAdapterNode$LiaNodeMemory.setNodeDirty(LeftInputAdapterNode.java:645)
>         at org.drools.core.reteoo.LeftInputAdapterNode.doUpdateSegmentMemory(LeftInputAdapterNode.java:396)
>         - locked <0x00000007d91f68a8> (a java.lang.Object)
>         at org.drools.core.reteoo.LeftInputAdapterNode.doUpdateObject(LeftInputAdapterNode.java:366)
>         at org.drools.core.reteoo.LeftInputAdapterNode.modifyObject(LeftInputAdapterNode.java:436)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:512)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:437)
>         at org.drools.core.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:382)
>         at org.drools.core.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:273)
>         at org.drools.core.common.NamedEntryPoint.update(NamedEntryPoint.java:511)
>         at org.drools.core.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:385)
>         at drools.core.Rule_vme$u46$phases_inconnues1199361134.defaultConsequence(Rule_vme$u46$phases_inconnues1199361134.java:19)
>         at drools.core.Rule_vme$u46$phases_inconnues1199361134DefaultConsequenceInvokerGenerated.evaluate(Unknown Source)
>         at drools.core.Rule_vme$u46$phases_inconnues1199361134DefaultConsequenceInvoker.evaluate(Unknown Source)
>         at org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1046)
>         - locked <0x00000007d8fc8080> (a org.drools.core.common.DefaultAgenda)
>         at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:152)
>         at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:100)
>         - locked <0x00000007d9335498> (a org.drools.core.phreak.RuleExecutor)
>         at org.drools.core.phreak.PhreakTimerNode$Executor.evauateAndFireRule(PhreakTimerNode.java:483)
>         at org.drools.core.phreak.PhreakTimerNode$TimerNodeJob$1.run(PhreakTimerNode.java:420)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:744)
> "Drools thread":
>         at org.drools.core.common.SynchronizedLeftTupleSets.takeAll(SynchronizedLeftTupleSets.java:44)
>         - waiting to lock <0x00000007d91f68a8> (a java.lang.Object)
>         at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:112)
>         at org.drools.core.phreak.RuleExecutor.evaluateNetwork(RuleExecutor.java:77)
>         - locked <0x00000007d9334c40> (a org.drools.core.phreak.RuleExecutor)
>         at org.drools.core.common.DefaultAgenda.evaluateEagerList(DefaultAgenda.java:990)
>         - locked <0x00000007d8fc80d0> (a java.util.LinkedList)
>         at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:945)
>         at org.drools.core.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1190)
>         at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:1329)
>         at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:1306)
>         at drools.core.Core$2.run(Core.java:495)
>         at java.lang.Thread.run(Thread.java:744)
> {code}



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