[jboss-jira] [JBoss JIRA] (JBMESSAGING-1947) Deadlock may happen when JBM shuts down a JGroups channel

[Yong Hao Gao (JIRA)]

     [ https://issues.jboss.org/browse/JBMESSAGING-1947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yong Hao Gao closed JBMESSAGING-1947.
-------------------------------------

    Resolution: Done

    
> Deadlock may happen when JBM shuts down a JGroups channel
> ---------------------------------------------------------
>
>                 Key: JBMESSAGING-1947
>                 URL: https://issues.jboss.org/browse/JBMESSAGING-1947
>             Project: JBoss Messaging
>          Issue Type: Bug
>          Components: JMS Clustering
>    Affects Versions: 1.4.0.SP3.CP14, 1.4.8.SP9
>            Reporter: Yong Hao Gao
>            Assignee: Yong Hao Gao
>             Fix For: 1.4.0.SP3.CP15, 1.4.8.SP10
>
>
> from Dennis:
> On 2013-09-16 20:37:51, Reed, Dennis commented:
> "The latest issue is a deadlock caused by JBoss Messaging.
> JBoss Messaging is closing the JGroups channel.
> This thread is waiting for a DISCONNECT_OK message from JGroups.
> This thread is holding a lock on a MessagingPostOffice$StateMonitor.
>   "Thread-29" prio=10 tid=0x00007f2e70f90000 nid=0xdc3 in Object.wait() [0x00007f2e590ce000]
>        ...
>        at org.jgroups.util.Promise.getResult(Promise.java:77)
>        at org.jgroups.JChannel.disconnect(JChannel.java:473)
>        ...
>        at org.jgroups.JChannel.close(JChannel.java:498)
>        at org.jboss.messaging.core.impl.postoffice.GroupMember.stop(GroupMember.java:250)
>        ...
>        at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice$StateMonitor.run(MessagingPostOffice.java:4284)
>        - locked <0x00000000e2f1d3e8> (a org.jboss.messaging.core.impl.postoffice.MessagingPostOffice$StateMonitor)
> Another thread is blocking while processing a new view.  (This is BAD and should never be done!!!).
> This thread is waiting for the MessagingPostOffice$StateMonitor locked in the thread above.
> This thread is holding a lock on the view object in JGroups.
>    "IncomingMessageHandler (channel=MessagingPostOffice-CTRL)" daemon prio=10 tid=0x00007f2e70f66800 nid=0xdad waiting for monitor entry [0x00007f2e596d3000]
>       java.lang.Thread.State: BLOCKED (on object monitor)
>        at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice$StateMonitor.stopJBMNodeForRecovery(MessagingPostOffice.java:4264)
>        - waiting to lock <0x00000000e2f1d3e8> (a org.jboss.messaging.core.impl.postoffice.MessagingPostOffice$StateMonitor)
>        at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice.quarantine(MessagingPostOffice.java:1765)
>        at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice.nodesLeft(MessagingPostOffice.java:1585)
>        at org.jboss.messaging.core.impl.postoffice.GroupMember$ControlMembershipListener.viewAccepted(GroupMember.java:609)
>        at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.passUp(MessageDispatcher.java:737)
>        at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:372)
>        at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:779)
>        at org.jgroups.JChannel.up(JChannel.java:1090)
>        ...
>        at org.jgroups.protocols.pbcast.GMS.installView(GMS.java:508)
>        - locked <0x00000000e290d740> (a org.jgroups.Membership)
>        at org.jgroups.protocols.pbcast.GMS.installView(GMS.java:422)
>        ...
> The thread that is trying to send the DISCONNECT_OK is blocked waiting on the view object locked by the thread above:
>    "ViewHandler" prio=10 tid=0x00007f2e7800e800 nid=0xe93 waiting for monitor entry [0x00007f2e58ecd000]
>       java.lang.Thread.State: BLOCKED (on object monitor)
>        at org.jgroups.protocols.pbcast.GMS.getNextView(GMS.java:283)
>        - waiting to lock <0x00000000e290d740> (a org.jgroups.Membership)
>        at org.jgroups.protocols.pbcast.CoordGmsImpl.handleMembershipChange(CoordGmsImpl.java:480)
>        at org.jgroups.protocols.pbcast.GMS$ViewHandler.process(GMS.java:1418)
>        at org.jgroups.protocols.pbcast.GMS$ViewHandler.run(GMS.java:1355)
>        at java.lang.Thread.run(Thread.java:662)"

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