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https://issues.apache.org/jira/browse/MAPREDUCE-2531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Joseph Evans updated MAPREDUCE-2531:
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Attachment: MR-2531-yarn-v1.patch
Attached is the yarn patch. The test is still under ant, even though the code
has been moved to mvn. Not sure if this is an issue or not. Also not all of
the ant contrib tests even compile. My test runs and passes though.
> org.apache.hadoop.mapred.jobcontrol.getAssignedJobID throw class cast
> exception
> --------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2531
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2531
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client
> Affects Versions: 0.22.0
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Fix For: 0.23.0
>
> Attachments: MR-2531-V1-trunk.patch, MR-2531-yarn-v1.patch
>
>
> When using a combination of the mapred and mapreduce APIs (PIG) it is
> possible to have the following exception
> Caused by: java.lang.ClassCastException: org.apache.hadoop.mapreduce.JobID
> cannot be cast to
> org.apache.hadoop.mapred.JobID
> at
> org.apache.hadoop.mapred.jobcontrol.Job.getAssignedJobID(Job.java:71)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:239)
> at org.apache.pig.PigServer.launchPlan(PigServer.java:1325)
> ... 29 more
> This is because the JobID is just downcast. It should be calling
> JobID.downgrade
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