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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8140) TableMapReduceUtils#addDependencyJar fails when nested inside another MR job
Date Thu, 11 Apr 2013 20:31:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629323#comment-13629323
] 

Andrew Purtell commented on HBASE-8140:
---------------------------------------

IIRC the EC@ jenkins builds stopped working one or two builds prior to this commit.
                
> TableMapReduceUtils#addDependencyJar fails when nested inside another MR job
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-8140
>                 URL: https://issues.apache.org/jira/browse/HBASE-8140
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 0.98.0, 0.95.0
>
>         Attachments: 0001-HBASE-8140-addendum-add-test-category.patch, 8140-port-jarfinder-0.94.patch,
8140-port-jarfinder-trunk.patch
>
>
> TableMapReduceUtils#addDependencyJar is used when configuring a mapreduce job to make
sure dependencies of the job are shipped to the cluster. The code depends on finding an actual
jar file containing the necessary classes. This is not always the case, for instance, when
run at the end of another mapreduce job. In that case, dependency jars have already been shipped
to the cluster and expanded in the parent job's run folder. Those dependencies are there,
just not available as jars.

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