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From "Keith Wall (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-5782) VirtualHostHouseKeeper tries to check queues that are not yet open leading to NPE in logs
Date Fri, 23 May 2014 13:42:02 GMT

     [ https://issues.apache.org/jira/browse/QPID-5782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Wall updated QPID-5782:
-----------------------------

    Assignee: Rob Godfrey

> VirtualHostHouseKeeper tries to check queues that are not yet open leading to NPE in
logs
> -----------------------------------------------------------------------------------------
>
>                 Key: QPID-5782
>                 URL: https://issues.apache.org/jira/browse/QPID-5782
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: 0.29
>            Reporter: Keith Wall
>            Assignee: Rob Godfrey
>
> Since QPID-5710, there has been a possibility that the housekeeper can attempt to check
that message status on queues that are not yet open, and this leads to an NPE as such queues
have a null entry list.
> TransactionTimeoutTest occasionally shows this problem (see log excerpt below).  It does
not cause a test failure as the housekeeper merely logs all exceptions and continues.
> It seems QPID-5710 introduced this possibility as it moved the creation of the queue
entry list from construction time to onOpen().
> {noformat}
> IoReceiver - localhost/127.0.0.1:15672 2014-05-23 08:00:17,586 DEBUG [qpid.client.protocol.AMQProtocolHandler]
(1873784078)Method frame received: [ExchangeDeclareOkBodyImpl: ]
> main 2014-05-23 08:00:17,586 DEBUG [qpid.protocol] SEND: [org.apache.qpid.client.protocol.AMQProtocolHandler@6fafad0e]
Frame channelId: 3, bodyFrame: [QueueDeclareBodyImpl: ticket=0, queue=TransactionTimeoutTest-testConsumerIdleCommit,
passive=false, durable=true, exclusive=false, autoDelete=false, nowait=false, arguments=null]
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,586 DEBUG [server.protocol.v0_8.AMQProtocolEngine]
Frame handled in 0 ms. Frame: Frame channelId: 3, bodyFrame: [ExchangeDeclareBodyImpl: ticket=0,
exchange=amq.direct, type=direct, passive=true, durable=false, autoDelete=false, internal=false,
nowait=false, arguments=null]
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,586 DEBUG [server.protocol.v0_8.AMQChannel]
sync() called on channel 3(1965183178)
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,586 DEBUG [server.protocol.v0_8.AMQProtocolEngine]
RECV: Frame channelId: 3, bodyFrame: [QueueDeclareBodyImpl: ticket=0, queue=TransactionTimeoutTest-testConsumerIdleCommit,
passive=false, durable=true, exclusive=false, autoDelete=false, nowait=false, arguments=null]
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,587 DEBUG [server.store.berkeleydb.BDBMessageStore]
Create [name=TransactionTimeoutTest-testConsumerIdleCommit, categoryClass=interface org.apache.qpid.server.model.Queue,
type=Queue, id=848209cf-5c99-4b95-8488-c07973eb199f]
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,587 DEBUG [server.store.berkeleydb.BDBMessageStore]
Storing configured object record: [name=TransactionTimeoutTest-testConsumerIdleCommit, categoryClass=interface
org.apache.qpid.server.model.Queue, type=Queue, id=848209cf-5c99-4b95-8488-c07973eb199f]
> test:VirtualHostHouseKeepingTask 2014-05-23 08:00:17,589 DEBUG [qpid.server.virtualhost.AbstractVirtualHost]
Checking message status for queue: TransactionTimeoutTest-testConsumerIdleCommit
> test:VirtualHostHouseKeepingTask 2014-05-23 08:00:17,589 ERROR [qpid.server.virtualhost.AbstractVirtualHost]
Exception in housekeeping for queue: TransactionTimeoutTest-testConsumerIdleCommit
> java.lang.NullPointerException
>         at org.apache.qpid.server.queue.AbstractQueue.checkMessageStatus(AbstractQueue.java:1999)
>         at org.apache.qpid.server.virtualhost.AbstractVirtualHost$VirtualHostHouseKeepingTask.execute(AbstractVirtualHost.java:935)
>         at org.apache.qpid.server.virtualhost.HouseKeepingTask$1.run(HouseKeepingTask.java:61)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:356)
>         at org.apache.qpid.server.virtualhost.HouseKeepingTask.run(HouseKeepingTask.java:54)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
>         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
>         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
>         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)
> IoReceiver - /127.0.0.1:50620 2014-05-23 08:00:17,598 INFO [qpid.message.queue.created]
[con:952(guest@/127.0.0.1:50620/test)/ch:3] [vh(/test)/qu(TransactionTimeoutTest-testConsumerIdleCommit)]
QUE-1001 : Create : Durable
>  {noformat} 



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