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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-16105) LLAP: refactor executor pool to not depend on RejectedExecutionEx for preemption
Date Fri, 03 Mar 2017 19:49:45 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin reassigned HIVE-16105:
---------------------------------------


> LLAP: refactor executor pool to not depend on RejectedExecutionEx for preemption
> --------------------------------------------------------------------------------
>
>                 Key: HIVE-16105
>                 URL: https://issues.apache.org/jira/browse/HIVE-16105
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>
> There's a queue inside the threadpool consisting on one item (that's how we set it up),
which means that we can submit N+1 tasks and not get rejected, with one task still not running
and no preemption happening. Having a threadpool like this also limits our options to e.g.
move the task that is being killed out immediately to start another one (that itself is out
of the scope of this jira)



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