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From "Alex Rudyy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-6259) [Java Broker] On DatabaseException in BDB committer thread, stopping of Coalescing committer in the same committer thread hangs because it waits for committer thread to finish running
Date Thu, 04 Dec 2014 15:11:12 GMT
Alex Rudyy created QPID-6259:
--------------------------------

             Summary: [Java Broker] On DatabaseException in BDB committer thread, stopping
of Coalescing committer in the same committer thread hangs because it waits for committer
thread to finish running
                 Key: QPID-6259
                 URL: https://issues.apache.org/jira/browse/QPID-6259
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
    Affects Versions: 0.30
            Reporter: Alex Rudyy


When DatabaseException occurs in commit thread, stopping of Coalescing committer can hang
because it is invoked in commit thread and there is a code there to wait until coalescing
committer thread finishes running

{noformat}
"Commit-Thread-default" prio=10 tid=0x00007f1750c28800 nid=0x12fb in Object.wait() [0x00007f16150dc000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00000007a59fe090> (a org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread)
        at java.lang.Thread.join(Thread.java:1281)
        - locked <0x00000007a59fe090> (a org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread)
        at java.lang.Thread.join(Thread.java:1355)
        at org.apache.qpid.server.store.berkeleydb.CoalescingCommiter.stop(CoalescingCommiter.java:55)
        at org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacade.close(StandardEnvironmentFacade.java:152)
        at org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread.processJobs(CoalescingCommiter.java:275)
        at org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread.run(CoalescingCommiter.java:214)
{noformat}

That might prevent broker from shutdown with kill <pid>:

{noformat}
"QpidBrokerShutdownHook" prio=10 tid=0x00007f1498001000 nid=0x17cd in Object.wait() [0x00007f14af9f7000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00000007a59fe090> (a org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread)
        at java.lang.Thread.join(Thread.java:1281)
        - locked <0x00000007a59fe090> (a org.apache.qpid.server.store.berkeleydb.CoalescingCommiter$CommitThread)
        at java.lang.Thread.join(Thread.java:1355)
        at org.apache.qpid.server.store.berkeleydb.CoalescingCommiter.stop(CoalescingCommiter.java:55)
        at org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacade.close(StandardEnvironmentFacade.java:152)
        at org.apache.qpid.server.store.berkeleydb.BDBMessageStore.closeMessageStore(BDBMessageStore.java:92)
        at org.apache.qpid.server.virtualhost.AbstractVirtualHost.closeMessageStore(AbstractVirtualHost.java:708)
        at org.apache.qpid.server.virtualhost.AbstractVirtualHost.onClose(AbstractVirtualHost.java:691)
        at org.apache.qpid.server.model.AbstractConfiguredObject.close(AbstractConfiguredObject.java:495)
        at org.apache.qpid.server.model.AbstractConfiguredObject$1.performAction(AbstractConfiguredObject.java:467)
        at org.apache.qpid.server.model.AbstractConfiguredObject$1.performAction(AbstractConfiguredObject.java:463)
        at org.apache.qpid.server.model.AbstractConfiguredObject.applyToChildren(AbstractConfiguredObject.java:748)
        at org.apache.qpid.server.model.AbstractConfiguredObject.closeChildren(AbstractConfiguredObject.java:462)
        at org.apache.qpid.server.model.AbstractConfiguredObject.close(AbstractConfiguredObject.java:494)
        at org.apache.qpid.server.model.AbstractConfiguredObject$1.performAction(AbstractConfiguredObject.java:467)
        at org.apache.qpid.server.model.AbstractConfiguredObject$1.performAction(AbstractConfiguredObject.java:463)
        at org.apache.qpid.server.model.AbstractConfiguredObject.applyToChildren(AbstractConfiguredObject.java:748)
        at org.apache.qpid.server.model.AbstractConfiguredObject.closeChildren(AbstractConfiguredObject.java:462)
        at org.apache.qpid.server.model.AbstractConfiguredObject.close(AbstractConfiguredObject.java:494)
        at org.apache.qpid.server.registry.ApplicationRegistry.close(ApplicationRegistry.java:104)
        at org.apache.qpid.server.Broker.shutdown(Broker.java:101)
        at org.apache.qpid.server.Broker.shutdown(Broker.java:85)
        at org.apache.qpid.server.Broker$ShutdownService$1.run(Broker.java:319)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:356)
        at org.apache.qpid.server.Broker$ShutdownService.run(Broker.java:313)
        at java.lang.Thread.run(Thread.java:745)

{noformat}



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