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From "Raul Kripalani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-5974) camel-jms: Make ThreadPoolTaskExecutor the default Task Executor
Date Mon, 04 Feb 2013 01:44:13 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-5974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569948#comment-13569948
] 

Raul Kripalani commented on CAMEL-5974:
---------------------------------------

Finally decided to create an option called 'defaultTaskExecutorType' which can take values
SimpleAsync or ThreadPool, depending on the Task Executor type to use. Backwards functionality
is preserved.
                
> camel-jms: Make ThreadPoolTaskExecutor the default Task Executor
> ----------------------------------------------------------------
>
>                 Key: CAMEL-5974
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5974
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-jms
>            Reporter: Raul Kripalani
>            Assignee: Raul Kripalani
>             Fix For: 2.10.4, 2.11.0
>
>
> {{DefaultJmsMessageListenerContainer}} uses {{org.springframework.core.task.SimpleAsyncTaskExecutor}}
as the default task executor. 
> This causes a lot of thread thrash when setting a positive idleTaskExecutionLimit. New
threads are created every time the consumers are refreshed, i.e. closed down and started again
to keep the minimum number of them around (= concurrentConsumers).
> Replace with {{org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor}} instead,
with the following config:
> * corePoolSize = concurrentConsumers
> * maxPoolSize = maxConcurrentConsumers

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