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https://issues.apache.org/jira/browse/QPID-4343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gordon Sim closed QPID-4343.
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Resolution: Won't Fix
Cluster has been removed from trunk, so this issue is no longer reproducible
there.
> cluster initial update stall when a queue has >10k messages with message
> groups set
> -----------------------------------------------------------------------------------
>
> Key: QPID-4343
> URL: https://issues.apache.org/jira/browse/QPID-4343
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.18
> Reporter: Pavel Moravec
> Labels: patch
> Attachments: bz854666.patch
>
>
> Description of problem:
> Having qpid broker in a cluster and using message groups, an attempt to join
> a clustered peer causes cluster stall during initial update process, when
> some queue has >10k messages with message groups set.
> The reason is that updater node sends information about message groups in
> ClusterConnectionQueueObserverStateBody message (exactly one message per one
> queue). If some queue has "too much" messages with msg.groups, such
> ClusterConnectionQueueObserverStateBody message does not fit into one AMQP
> frame and it is silently(!) dropped by the updater.
> Updatee node then waits for the message while updater node (and consequently
> whole cluster) waits for updatee to mark itself as ready.
> Version-Release number of selected component (if applicable):
> 0.14-21, almost surely in 0.18
> How reproducible:
> 100%
> Steps to Reproduce:
> 1. Have 2node cluster with 1 node running
> 2. Produce at least 10k messages with message groups to it:
> qpid-send --group-key "GROUP_KEY" -m 10000 -a "groupQ; {create:always,
> node:{type:queue, x-declare:{ arguments:{'qpid.group_header_key':'GROUP_KEY',
> 'qpid.shared_msg_group':1 }}}}"
> 3. (re)start 2nd node twice - due to some unknown reason, the first start
> succeeds while the second does not.
> Actual results:
> New joiner stalls the cluster.
> Expected results:
> No broker joining a cluster can stall the cluster.
> Additional info:
> patch proposed
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