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From "Ernest Allen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5843) Producing to many queues locks I/O threads for new connections
Date Tue, 24 Jun 2014 16:22:25 GMT

    [ https://issues.apache.org/jira/browse/QPID-5843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042318#comment-14042318
] 

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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