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https://issues.apache.org/activemq/browse/AMQ-2436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dejan Bosanac resolved AMQ-2436.
--------------------------------
Resolution: Fixed
Resolved with SVN revision 820955
> JDBC synchronization problems under high load
> ---------------------------------------------
>
> Key: AMQ-2436
> URL: https://issues.apache.org/activemq/browse/AMQ-2436
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.3.0
> Reporter: Dejan Bosanac
> Assignee: Dejan Bosanac
> Fix For: 5.3.0
>
>
> It's possible to get exception like this
> {code}
> java.lang.NullPointerException
> at java.util.TreeMap.rotateLeft(TreeMap.java:1261)
> at java.util.TreeMap.fixAfterInsertion(TreeMap.java:1328)
> at java.util.TreeMap.put(TreeMap.java:483)
> at java.util.TreeSet.add(TreeSet.java:210)
> at
> org.apache.activemq.store.jdbc.adapter.DefaultJDBCAdapter.doRecoverNextMessages(DefaultJDBCAdapter.java:751)
> at
> org.apache.activemq.store.jdbc.JDBCMessageStore.recoverNextMessages(JDBCMessageStore.java:214)
> at
> org.apache.activemq.store.ProxyMessageStore.recoverNextMessages(ProxyMessageStore.java:87)
> at
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch.doFillBatch(QueueStorePrefetch.java:81)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.fillBatch(AbstractStoreCursor.java:227)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.hasNext(AbstractStoreCursor.java:134)
> at
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.hasNext(StoreQueueCursor.java:131)
> at org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1280)
> at
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1419)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1103)
> at
> org.apache.activemq.thread.DeterministicTaskRunner.runTask(DeterministicTaskRunner.java:84)
> at
> org.apache.activemq.thread.DeterministicTaskRunner$1.run(DeterministicTaskRunner.java:41)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
> at java.lang.Thread.run(Thread.java:595)
> {code}
> if you run multiple producers/consumers in high load environment using JDBC
> persistence.
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