4:39 a.m.
Last week we were talking about auto-actions in Jira.
This has now been implemented for HAWKULAR-* on all github.com/hawkular
repos.
See below for a transition that happened when a PR was sent.
I think for this to work, the JIRA state has to be in "Coding in
progress" already.
Heiko
Forwarded message:
From: Anonymous (JIRA) <issues(a)jboss.org>
To: hrupp(a)redhat.com
Subject: [JBoss JIRA] (HAWKULAR-175) Include bus sample using ActiveMQ
virtual topics
Date: Fri, 8 May 2015 11:26:46 -0400 (EDT)
[
https://issues.jboss.org/browse/HAWKULAR-175?page=com.atlassian.jira.plug...
]
Issue was automatically transitioned when Gary Brown created pull
request #17 in GitHub
---------------------------------------------------------------------------------------
Status: Pull Request Sent (was: Open)
> Include bus sample using ActiveMQ virtual topics
> ------------------------------------------------
>
> Key: HAWKULAR-175
> URL: https://issues.jboss.org/browse/HAWKULAR-175
> Project: Hawkular
> Issue Type: Task
> Components: Bus
> Reporter: Gary Brown
> Assignee: Gary Brown
>
> In standard JMS, for a consuming application to operate in a cluster
> to support load balancing and fail over it needs to consume from a
> queue.
> However in some situations, the information being published to that
> queue would also be of use for other applications. In this scenario,
> it would either be necessary for the producer to know about the
> number of consuming apps, and send the message to an individual queue
> per app (which makes it difficult to dynamically add further
> consuming apps), or switch to using a topic, so the publisher is
> independent of the number of consumers (which loses the benefit of
> load balanced consumers, as each clustered instance of the app would
> perform duplicate processing of the messages).
> ActiveMQ provides a solution using "virtual topics" where producers
> simply publish to a topic (and therefore don't care about the number
> of consumers), but the consumers use queues scoped to the application
> name - and therefore multiple independent apps can receive the same
> message, and also have multiple load balanced instances of the app on
> different servers in a cluster.
> A modified version of the simple MDB sample should be provided to
> demonstrate use of this "virtual topic" capability using the standard
> JMS APIs.
> See http://activemq.apache.org/virtual-destinations.html for further
> details.
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