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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3272) Handle RejectedExecutionException
Date Thu, 07 Apr 2011 09:26:06 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13016780#comment-13016780
] 

Gary Tully commented on AMQ-3272:
---------------------------------

just at thought, this might effect the send order, in that the last task gets executed ahead
of pending tasks.
Would it be better if that send blocked pending the execution of the tasks ahead of it.
so use a fixed size blocking task pool and have the number of workers configurable.

> Handle RejectedExecutionException 
> ----------------------------------
>
>                 Key: AMQ-3272
>                 URL: https://issues.apache.org/jira/browse/AMQ-3272
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.5.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.6.0
>
>
> Under heavy load, the async task executor in kahadb can throw RejectedExecutionException
meaning it can't accept more tasks.
> Thread pool executor has RejectedExecutionHandler that deals with these situations and
by default it aborts the task and throws the exception. I think it's much better to use ThreadPoolExecutor.CallerRunsPolicy
which will try to execute the task in the current thread and thus sync the execution.

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