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From "David Ingham (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-5166) Lazily create dispatcher thread in JMS Session implementation
Date Tue, 24 Sep 2013 10:53:05 GMT

     [ https://issues.apache.org/jira/browse/QPID-5166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Ingham updated QPID-5166:
-------------------------------

    Attachment: QPID-5166.patch

This patch updates SessionImpl to create the dispatcher thread when required rather than at
instantiation.
                
> Lazily create dispatcher thread in JMS Session implementation
> -------------------------------------------------------------
>
>                 Key: QPID-5166
>                 URL: https://issues.apache.org/jira/browse/QPID-5166
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Client
>    Affects Versions: 0.24
>         Environment: Qpid JMS AMQP 1.0 client library (v0.24)
>            Reporter: David Ingham
>            Priority: Minor
>         Attachments: QPID-5166.patch
>
>
> The implementation of JMS Session uses a thread to dispatch messages to message listeners.
This thread is created on instantiation of the Session even though it is only required if
the application goes on to create a MessageConsumer with a MessageListener from the Session.
For environments that create lots of Sessions with only MessageProducers then this is an unnecessary
overhead. The recommendation is to change the Session implementation to only create these
dispatcher threads when required. 

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