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Posted to yarn-issues@hadoop.apache.org by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org> on 2013/02/27 20:57:13 UTC

[jira] [Updated] (YARN-171) NodeManager should serve logs directly if log-aggregation is not enabled

     [ https://issues.apache.org/jira/browse/YARN-171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated YARN-171:
-----------------------------------------

    Issue Type: Sub-task  (was: Bug)
        Parent: YARN-431
    
> NodeManager should serve logs directly if log-aggregation is not enabled
> ------------------------------------------------------------------------
>
>                 Key: YARN-171
>                 URL: https://issues.apache.org/jira/browse/YARN-171
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 0.23.3
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Siddharth Seth
>         Attachments: YARN171_WIP.txt
>
>
> NodeManagers never serve logs for completed applications. If log-aggregation is not enabled, in the interim, due to bugs like YARN-162, this is a serious problem for users as logs are necessarily not available.
> We should let nodes serve logs directly if YarnConfiguration.LOG_AGGREGATION_ENABLED is set. This should be okay as NonAggregatingLogHandler can retain logs upto YarnConfiguration.NM_LOG_RETAIN_SECONDS.

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