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Posted to dev@crunch.apache.org by "Andrew Olson (JIRA)" <ji...@apache.org> on 2019/01/23 18:59:00 UTC

[jira] [Commented] (CRUNCH-675) HFileTarget should use DistCp when source and destination are in different filesystems

    [ https://issues.apache.org/jira/browse/CRUNCH-675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16750327#comment-16750327 ] 

Andrew Olson commented on CRUNCH-675:
-------------------------------------

Pull request,
https://github.com/apache/crunch/pull/17

> HFileTarget should use DistCp when source and destination are in different filesystems
> --------------------------------------------------------------------------------------
>
>                 Key: CRUNCH-675
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-675
>             Project: Crunch
>          Issue Type: Improvement
>            Reporter: Andrew Olson
>            Priority: Major
>
> For jobs using the HFileTarget we have found that running a DistCp to handleOutputs at the conclusion of a job, when the source and destination are in different filesystems, provides a substantial performance benefit compared to a single-threaded data copy. This enhancement is similar to what was suggested in CRUNCH-660.



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