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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/11/01 13:56:17 UTC

[jira] [Commented] (YARN-1383) Remove node updates from the Fair Scheduler event log

    [ https://issues.apache.org/jira/browse/YARN-1383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811222#comment-13811222 ] 

Karthik Kambatla commented on YARN-1383:
----------------------------------------

This heartbeat log was helpful, at least to me, in the past while debugging production issues. Can we not remove it entirely, may be a flag to turn it on/off would be nice.

I am not sure if FS event log is always on - if it is, I definitely see merit to turning it off by default and have a flag for users to turn it on when needed. 

> Remove node updates from the Fair Scheduler event log
> -----------------------------------------------------
>
>                 Key: YARN-1383
>                 URL: https://issues.apache.org/jira/browse/YARN-1383
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>    Affects Versions: 2.2.0
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-1383.patch
>
>
> Writing out a line whenever a node heartbeats is not useful and just too much.



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