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Posted to dev@activemq.apache.org by "Timothy Bish (JIRA)" <ji...@apache.org> on 2012/12/05 16:16:58 UTC

[jira] [Updated] (AMQ-4077) NullPointerException in BTreeNode.java line 110

     [ https://issues.apache.org/jira/browse/AMQ-4077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish updated AMQ-4077:
------------------------------

    Fix Version/s:     (was: 5.5.1)
                   5.x
    
> NullPointerException in BTreeNode.java line 110
> -----------------------------------------------
>
>                 Key: AMQ-4077
>                 URL: https://issues.apache.org/jira/browse/AMQ-4077
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.5.1
>         Environment:  #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
>            Reporter: Oleg Dulin
>             Fix For: 5.x
>
>
> With a queue containing several million messages we started getting these exceptions. This appears to have stalled the queue, even after the server restart. I had to delete activemq-data directory to make it move along.
> 2012-09-25 05:25:48,446 ERROR [BrokerService[localhost] Task-2008] org.apache.activemq.broker.region.cursors.AbstractSto
> reCursor.fillBatch(AbstractStoreCursor.java:262)  - QueueStorePrefetch1291856639 - Failed to fill batch
> java.lang.NullPointerException
>         at org.apache.kahadb.index.BTreeNode$BTreeIterator.findNextPage(BTreeNode.java:110)
>         at org.apache.kahadb.index.BTreeNode$BTreeIterator.hasNext(BTreeNode.java:121)
>         at org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex$MessageOrderIterator.hasNext(MessageDatabase.java:2344)
>         at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore$5.execute(KahaDBStore.java:491)
>         at org.apache.kahadb.page.Transaction.execute(Transaction.java:728)
>         at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore.recoverNextMessages(KahaDBStore.java:485)
>         at org.apache.activemq.store.ProxyMessageStore.recoverNextMessages(ProxyMessageStore.java:88)
>         at org.apache.activemq.broker.region.cursors.QueueStorePrefetch.doFillBatch(QueueStorePrefetch.java:97)
>         at org.apache.activemq.broker.region.cursors.AbstractStoreCursor.fillBatch(AbstractStoreCursor.java:260)
>         at org.apache.activemq.broker.region.cursors.AbstractStoreCursor.reset(AbstractStoreCursor.java:108)
>         at org.apache.activemq.broker.region.cursors.StoreQueueCursor.reset(StoreQueueCursor.java:157)
>         at org.apache.activemq.broker.region.Queue.doPageInForDispatch(Queue.java:1712)
>         at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1932)
>         at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1440)
>         at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:127)
>         at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)

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