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Posted to dev@qpid.apache.org by "Rob Godfrey (JIRA)" <ji...@apache.org> on 2015/06/18 15:54:01 UTC
[jira] [Commented] (QPID-6558) Queue can continue to grow after
connection closes and does not appear in qpid-stat
[ https://issues.apache.org/jira/browse/QPID-6558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14591818#comment-14591818 ]
Rob Godfrey commented on QPID-6558:
-----------------------------------
Hi David - apologies for not responding to this sooner.
Have you tried reproducing this issue on a recent release of the Java Broker (0.32 for instance)? The logic for auto-deleting of queues and managing connections has changed a lot in the last 2.5 years so any bug in 0.18 may no longer be present.
> Queue can continue to grow after connection closes and does not appear in qpid-stat
> -----------------------------------------------------------------------------------
>
> Key: QPID-6558
> URL: https://issues.apache.org/jira/browse/QPID-6558
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.18
> Environment: RHEL Server 6.4, 64-bit
> Java SE 1.7.0_51 x86_64
> Reporter: David Friedman
> Labels: memory_leak
>
> A (Java JMS) client disconnected from the broker. (Probably killed with a SIGTERM.) It had a queue for a topic that apparently continued to grow after the connection was closed.
> We have a cron to periodically log all queues and other broker information using qpid-stat. The next log after the client shutdown does not show the queue. However, the queue was apparently still being maintained internally by the broker and had new messages appended to it. The broker eventually ran out of memory. We have the broker JVM set up to dump its heap when there is an OutOfMemoryError exception. Examining the heap dump showed most of the memory was being used by the queue from the client that had disconnected.
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