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From Joakim Örtbrant (Commented) (JIRA) <j...@apache.org>
Subject [jira] [Commented] (AMQ-2106) Allow broker to evenly distribute message groups among consumers
Date Tue, 27 Sep 2011 06:09:12 GMT

    [ https://issues.apache.org/jira/browse/AMQ-2106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115250#comment-13115250
] 

Joakim Örtbrant commented on AMQ-2106:
--------------------------------------

This feature is very important not only to utilize all consumers after a consumer crash and
recovery but also deliberate shutdown/startup of consumers. In our case this happens each
time we do a new release of our distributed consumer application. We have consumers spread
across multiple servers and redeploy 1 server at a time to not have any downtime, the end
result of this is that after the release the consumers are no longer evenly distributed across
the servers (last server that was updated does not have any active consumers and is now a
pure backup). A config setting to configure the behaviour and/or some way to force a reassign
at runtime would be much appriciated!
                
> Allow broker to evenly distribute message groups among consumers
> ----------------------------------------------------------------
>
>                 Key: AMQ-2106
>                 URL: https://issues.apache.org/jira/browse/AMQ-2106
>             Project: ActiveMQ
>          Issue Type: New Feature
>          Components: Broker
>    Affects Versions: 5.2.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.x
>
>
> Currently the broker will not reassign message groups if new consumers becomes available
(or existing ones are removed). We could allow the broker to try reassign the message groups
when consumers are added/removed so that we have a even distribution among consumers. 

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