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Posted to common-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2016/05/13 22:57:13 UTC

[jira] [Updated] (HADOOP-13145) In DistCp, prevent unnecessary getFileStatus call when not preserving metadata.

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

Chris Nauroth updated HADOOP-13145:
-----------------------------------
    Status: Patch Available  (was: Open)

> 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
>         Attachments: HADOOP-13145.001.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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