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https://issues.apache.org/jira/browse/MAPREDUCE-3697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199923#comment-13199923
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Tom White commented on MAPREDUCE-3697:
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I was wrong about making Counters.Counter non-static - it *is* static in 1.x
(http://hadoop.apache.org/common/docs/r1.0.0/api/org/apache/hadoop/mapred/Counters.Counter.html).
Sorry for the extra work Alejandro!
> Hadoop Counters API limits Oozie's working across different hadoop versions
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-3697
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3697
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.1
> Reporter: John George
> Assignee: Mahadev konar
> Priority: Blocker
> Attachments: MAPREDUCE-3697-facade.patch,
> MAPREDUCE-3697-facadeV2.patch, MAPREDUCE-3697-facadeV3.patch,
> MAPREDUCE-3697.patch, MAPREDUCE-3697.patch
>
>
> Oozie uses Hadoop Counters API, by invoking Counters.getGroup(). However, in
> hadoop 23, org.apache.hadoop.mapred.Counters does not implement getGroup().
> Its
> parent class AbstractCounters implements it. This is different from hadoop20X.
> As a result, Oozie compiled with either hadoop version does not work with the
> other version.
> A specific scenario, Oozie compiled with .23 and run against 205, does not
> update job status owing to a Counters API exception.
> Will explicit re-compilation against the relevant hadoop jars be required each
> time? This will prevent launching a uniform Oozie version across different
> clusters.
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