Philip Harvey created QPID-4121:
-----------------------------------
Summary: ConcurrentModificationException reported by
HouseKeepingTask while closing session
Key: QPID-4121
URL: https://issues.apache.org/jira/browse/QPID-4121
Project: Qpid
Issue Type: Bug
Components: Java Broker
Affects Versions: 0.16
Reporter: Philip Harvey
Assignee: Philip Harvey
Fix For: Future
A ConcurrentModificationException was reported by a housekeeping thread while
closing a session. It was closing the session because its transaction was open
or idle for longer than the configured maximum time.
Here is the log excerpt:
{noformat}
2012-07-02 19:25:12,210 WARN [notifier:VirtualHostHouseKeepingTask]
server.AMQChannel (AMQChannel.java:1519) - IDLE TRANSACTION ALERT
org.apache.qpid.server
.logging.subjects.ChannelLogSubject@4ca3b645 503084 ms
2012-07-02 23:48:41,979 WARN [notifier:VirtualHostHouseKeepingTask]
server.AMQChannel (AMQChannel.java:1519) - IDLE TRANSACTION ALERT
org.apache.qpid.server
.logging.subjects.ChannelLogSubject@3b1d0a16 584211 ms
2012-07-02 23:48:42,033 ERROR [notifier:VirtualHostHouseKeepingTask]
virtualhost.VirtualHostImpl$VirtualHostHouseKeepingTask
(VirtualHostImpl.java:407) - Exc
eption in housekeeping for connection:
/169.115.203.31:50639(emea_uk_dcpp_notifier_ds)
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at
org.apache.qpid.server.txn.LocalTransaction.rollback(LocalTransaction.java:297)
at org.apache.qpid.server.AMQChannel.close(AMQChannel.java:535)
at
org.apache.qpid.server.protocol.AMQProtocolEngine.closeChannel(AMQProtocolEngine.java:727)
at
org.apache.qpid.server.protocol.AMQProtocolEngine.closeSession(AMQProtocolEngine.java:1350)
at
org.apache.qpid.server.AMQChannel.checkTransactionStatus(AMQChannel.java:1530)
at
org.apache.qpid.server.virtualhost.VirtualHostImpl$VirtualHostHouseKeepingTask.execute(VirtualHostImpl.java:400)
at
org.apache.qpid.server.virtualhost.HouseKeepingTask.run(HouseKeepingTask.java:61)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101
(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic
(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{noformat}
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