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https://issues.apache.org/jira/browse/QPID-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490914#comment-13490914
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Chuck Rolke commented on QPID-4421:
-----------------------------------
Workaround submitted by r1405946
> C++ Broker Issue with reusing link channel Id number too soon
> -------------------------------------------------------------
>
> Key: QPID-4421
> URL: https://issues.apache.org/jira/browse/QPID-4421
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.18
> Reporter: Chuck Rolke
>
> Following on to QPID-4392
> As you add and remove replicated queues within an HA broker, bridges are
> opened and closed for each queue. Closing a bridge immediately re-adds the
> associated channel number into an available pool. As a result, when the old
> bridge (channel X) is closed it sends a "detach" command to the broker and
> the new bridge (assigned the same channel X) sends an "attach" command. The
> broker will eventually respond with a "detached" command which was meant for
> the original bridge on channel X. Unfortunately, the new bridge on channel X
> handles this detached command from the broker and flags the bridge as
> detached. This process can then repeat for several cycles until it break out
> of the detach/attach/detached race.
> In addition to the detach/attach/detached race, the immediate re-use of
> channel numbers appears to create other issues like the following:
> Nov 2 11:26:40 itcm31 qpidd[12122]: 2012-11-02 11:26:40 [Protocol] error
> Execution exception: invalid-argument:
> anonymous.qpid.bridge_session_qpid.replicator-Queue1.b64c23e6-cb01-4297-8935-c12b40
> 804ae2_84209514-2e58-4fb9-8d37-7c2440f5f144: confirmed < (2+0) but only sent
> < (0+0) (qpid/SessionState.cpp:154)
> This issue may be worked around by assigning channel Id numbers from the pool
> in increasing serial order and not immediately reusing a deallocated Id.
> Although this does not fix the problem of the race condition it will provide
> relief.
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