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https://issues.apache.org/jira/browse/QPID-6741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Wall updated QPID-6741:
-----------------------------
    Description: 
NetworkConnectionScheduler uses a {{java.util.concurrent.ThreadPoolExecutor}} 
to service AMQP IO.  The intention is that the executor will dynamically scale 
the number of threads in the pool as load increases until a maximum is reached 
and then at that point requests will be queue.  However, TPE, out of the box, 
does not offer such behaviour.  When used with a unbounded queue, TPE will 
*never* increase the threads beyond the core size.



> ThreadPoolExecutors used for virtual host IO / port IO do not scale above 
> minimum pool size
> -------------------------------------------------------------------------------------------
>
>                 Key: QPID-6741
>                 URL: https://issues.apache.org/jira/browse/QPID-6741
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: qpid-java-6.0
>            Reporter: Keith Wall
>             Fix For: qpid-java-6.0
>
>
> NetworkConnectionScheduler uses a {{java.util.concurrent.ThreadPoolExecutor}} 
> to service AMQP IO.  The intention is that the executor will dynamically 
> scale the number of threads in the pool as load increases until a maximum is 
> reached and then at that point requests will be queue.  However, TPE, out of 
> the box, does not offer such behaviour.  When used with a unbounded queue, 
> TPE will *never* increase the threads beyond the core size.



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