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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13283) Support reset operation for new global storage statistics and per FS storage stats
Date Fri, 01 Jul 2016 22:56:11 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15359789#comment-15359789
] 

Mingliang Liu commented on HADOOP-13283:
----------------------------------------

Thanks [~hitesh] for your comment. I think you point is very valid. The v2 patch will address
this, along with unit tests.

I'll revise the NPE problem as well. Thanks, [~jnp].

> Support reset operation for new global storage statistics and per FS storage stats
> ----------------------------------------------------------------------------------
>
>                 Key: HADOOP-13283
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13283
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>             Fix For: 2.8.0
>
>         Attachments: HADOOP-13283.000.patch, HADOOP-13283.001.patch
>
>
> Applications may reuse the file system object across jobs and its storage statistics
should be reset. Specially the {{FileSystem.Statistics}} supports reset and [HADOOP-13032]
needs to keep that use case valid.
> This jira is for supporting reset operations for storage statistics.
> Thanks [~hitesh] for reporting this.



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