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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2293) Scoring for NMs to identify a better candidate to launch AMs
Date Mon, 04 May 2015 09:12:07 GMT

    [ https://issues.apache.org/jira/browse/YARN-2293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14526441#comment-14526441
] 

Sunil G commented on YARN-2293:
-------------------------------

Hi [~zjshen]
This work is moved to YARN-2005, I will share a basic prototype soon in that.
This can be made as duplicated to YARN-2005.

> Scoring for NMs to identify a better candidate to launch AMs
> ------------------------------------------------------------
>
>                 Key: YARN-2293
>                 URL: https://issues.apache.org/jira/browse/YARN-2293
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager, resourcemanager
>            Reporter: Sunil G
>            Assignee: Sunil G
>
> Container exit status from NM is giving indications of reasons for its failure. Some
times, it may be because of container launching problems in NM. In a heterogeneous cluster,
some machines with weak hardware may cause more failures. It will be better not to launch
AMs there more often. Also I would like to clear that container failures because of buggy
job should not result in decreasing score. 
> As mentioned earlier, based on exit status if a scoring mechanism is added for NMs in
RM, then NMs with better scores can be given for launching AMs. Thoughts?



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