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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4664) RollingFileSystemSink should eagerly rotate directories
Date Tue, 02 Feb 2016 14:24:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15128311#comment-15128311

Daniel Templeton commented on YARN-4664:

The additional test for the new flushing behavior will go into HDFS-9637.

> RollingFileSystemSink should eagerly rotate directories
> -------------------------------------------------------
>                 Key: YARN-4664
>                 URL: https://issues.apache.org/jira/browse/YARN-4664
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.8.0
>            Reporter: Daniel Templeton
>            Assignee: Daniel Templeton
>            Priority: Critical
>         Attachments: YARN-4664.001.patch
> The RollingFileSystemSink only rolls over to a new directory if a new metrics record
comes in.  The issue is that HDFS does not update the file size until it's closed (HDFS-5478),
and if no new metrics record comes in, then the file size will never be updated.
> This JIRA is to add a background thread to the sink that will eagerly close the file
at the top of the hour.

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