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Posted to mapreduce-issues@hadoop.apache.org by "Mahadev konar (JIRA)" <ji...@apache.org> on 2011/09/09 01:34:09 UTC

[jira] [Updated] (MAPREDUCE-2961) Increase the default threadpool fize for container launching in the application master.

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mahadev konar updated MAPREDUCE-2961:
-------------------------------------

    Attachment: MAPREDUCE-2961.patch

Trivial patch to increase the number of threads in the launcher so that we do not bottleneck on container launching.

> Increase the default threadpool fize for container launching in the application master.
> ---------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2961
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2961
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2961.patch
>
>
> Currently the default threadpool size is 10 for launching containers in ContainerLauncherImpl. We should increase that to 100 for a reasonable default, so that container launching is not backed up by a small thread pool size.

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