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https://issues.apache.org/jira/browse/QPID-6577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14577739#comment-14577739
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Alan Conway commented on QPID-6577:
-----------------------------------
The problem is that under the 0-10 protocol (used by HA) brokers add an
"exchange" property to each message for the exchange the message arrived on
.This is different (and sometimes longer) on the backup brokers from the
primary since on the backups the message arrives on a special replication
exchange. The fix is to not modify the exchange property when a message arrives
on a backup broker.
> HA - backup broker messages are larger than primary messages.
> -------------------------------------------------------------
>
> Key: QPID-6577
> URL: https://issues.apache.org/jira/browse/QPID-6577
> Project: Qpid
> Issue Type: Bug
> Components: C++ Clustering
> Affects Versions: 0.32
> Reporter: Alan Conway
> Assignee: Alan Conway
> Fix For: 0.33
>
>
> Start a HA cluster, send some messages to a queue, then run
> qpid-stat -q <somequeue> --ha-admin
> on each broker in the cluster. Messages on the backup brokers will be
> slighlty larger than on the primary.
> This is a problem when backup brokers reach their queue limits before the
> primary due to the larger messages, they are no longer able to function as
> backups.
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