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https://issues.apache.org/jira/browse/QPID-7001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15153278#comment-15153278
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Keith Wall commented on QPID-7001:
----------------------------------
I saw the following test failure when running 0-9 MMS profile which looks like
it is related to my last change:
Logs attached.
{noformat}
20:05:07,258 |-INFO in
ch.qos.logback.core.FileAppender[FILE-org.apache.qpid.server.logging.BrokerLoggingTest.testBrokerStartupListeningTCPSSL]
- File property is set to
[/Users/keith/src/qpid-java/systests/target/surefire-reports/java-mms.0-9/TEST-org.apache.qpid.server.logging.BrokerLoggingTest.testBrokerStartupListeningTCPSSL.txt]
Thread terminated due to uncaught
exceptionjava.nio.channels.ClosedSelectorException
at
sun.nio.ch.KQueueSelectorImpl.implRegister(KQueueSelectorImpl.java:211)
at sun.nio.ch.SelectorImpl.register(SelectorImpl.java:132)
at
java.nio.channels.spi.AbstractSelectableChannel.register(AbstractSelectableChannel.java:212)
at
java.nio.channels.SelectableChannel.register(SelectableChannel.java:280)
at
org.apache.qpid.server.transport.SelectorThread.unregisterConnection(SelectorThread.java:511)
at
org.apache.qpid.server.transport.SelectorThread.removeConnection(SelectorThread.java:590)
at
org.apache.qpid.server.transport.NetworkConnectionScheduler.removeConnection(NetworkConnectionScheduler.java:194)
at
org.apache.qpid.server.transport.NonBlockingConnection.shutdown(NonBlockingConnection.java:377)
at
org.apache.qpid.server.transport.NonBlockingConnection.doWork(NonBlockingConnection.java:305)
at
org.apache.qpid.server.transport.NetworkConnectionScheduler.processConnection(NetworkConnectionScheduler.java:108)
at
org.apache.qpid.server.transport.SelectorThread$ConnectionProcessor.processConnection(SelectorThread.java:504)
at
org.apache.qpid.server.transport.SelectorThread$SelectionTask.performSelect(SelectorThread.java:337)
at
org.apache.qpid.server.transport.SelectorThread$SelectionTask.run(SelectorThread.java:86)
at
org.apache.qpid.server.transport.SelectorThread.run(SelectorThread.java:462)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{noformat}
> [Java Broker] NullPointerException can be thrown from Port IO Thread
> --------------------------------------------------------------------
>
> Key: QPID-7001
> URL: https://issues.apache.org/jira/browse/QPID-7001
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: qpid-java-6.0, qpid-java-6.1
> Reporter: Alex Rudyy
> Priority: Critical
> Fix For: qpid-java-6.0.1, qpid-java-6.1
>
> Attachments: 0001-WIP-Add-system-test.patch, test.log.tar.gz
>
>
> I run into the following issue in my tests:
> {noformat}
> ########################################################################
> #
> # Unhandled Exception java.lang.NullPointerException in Thread
> IO-pool-Port-amqp-1
> #
> # Exiting
> #
> ########################################################################
> java.lang.NullPointerException
> at
> org.apache.qpid.server.transport.SelectorThread$SelectionTask$1.run(SelectorThread.java:190)
> at
> org.apache.qpid.server.transport.SelectorThread.run(SelectorThread.java:457)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> {noformat}
> I've seen this exception occurring from time to time in the BDB HA test
> MultiNodeTest#testInFlightTransactionsWhilstMajorityIsLost
> It seems that NPE occurs on heavy loads when multiple connections are trying
> to restore connectivity because of failover. The issue might affect users
> severely production deployments of the 6.x brokers, as NPE kills the broker
> and manual intervention could be required to start-up the broker
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