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https://issues.apache.org/jira/browse/QPID-5843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042318#comment-14042318
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Ernest Allen commented on QPID-5843:
------------------------------------
A workaround is to increase the number of worker threads to approx. 1.5 times
the number of heavy producers.
This is done with the --worker-threads ## configuration setting.
By default, the broker sets the number of worker threads to the number of cores
+ 1. In some cases the broker will be more responsive to new connections when
the number of worker threads is increased.
> Producing to many queues locks I/O threads for new connections
> --------------------------------------------------------------
>
> Key: QPID-5843
> URL: https://issues.apache.org/jira/browse/QPID-5843
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.18, 0.22
> Reporter: Ernest Allen
> Attachments: 2a.diff
>
>
> When publishing via an exchange to a large number of queues, the broker is
> not responding to new connections in a timely manor. This leads to client
> time outs.
>
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