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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6248) Persist DistCp job id in the staging directory
Date Tue, 10 Feb 2015 02:43:35 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313411#comment-14313411
] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-6248:
----------------------------------------------------

Why not have a public API in DistCp and use that programmatically instead of persisting IDs
into files and then reading them?

> Persist DistCp job id in the staging directory
> ----------------------------------------------
>
>                 Key: MAPREDUCE-6248
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6248
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: distcp
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>
> Currently the DistCp is acting as a tool and the corresponding MapReduce Job  is created
and used inside of its {{execute}} method. It is thus difficult for external services to query
its progress and counters. It may be helpful to persist the job id into a file inside its
staging directory.



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