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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13145) In DistCp, prevent unnecessary getFileStatus call when not preserving metadata.
Date Sat, 21 May 2016 18:11:13 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated HADOOP-13145:
------------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

+1

applied the branch-2.8 patch, tested, all is well.

> In DistCp, prevent unnecessary getFileStatus call when not preserving metadata.
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-13145
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13145
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: tools/distcp
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>             Fix For: 2.8.0
>
>         Attachments: HADOOP-13145-branch-2.004.patch, HADOOP-13145-branch-2.8.004.patch,
HADOOP-13145.001.patch, HADOOP-13145.003.patch
>
>
> After DistCp copies a file, it calls {{getFileStatus}} to get the {{FileStatus}} from
the destination so that it can compare to the source and update metadata if necessary.  If
the DistCp command was run without the option to preserve metadata attributes, then this additional
{{getFileStatus}} call is wasteful.



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