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https://issues.apache.org/jira/browse/MAPREDUCE-4898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538414#comment-13538414
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Karthik Kambatla commented on MAPREDUCE-4898:
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Thanks for taking a closer look, Robert.
+1
> FileOutputFormat.checkOutputSpecs and FileOutputFormat.setOutputPath
> incompatible with MR1
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4898
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4898
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Fix For: 2.0.3-alpha
>
> Attachments: MAPREDUCE-4898.patch
>
>
> In MR1,
> {{org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs}}
> throws {{org.apache.hadoop.mapred.FileAlreadyExistsException}} but now it
> throws {{org.apache.hadoop.fs.FileAlreadyExistsException}} instead, making
> them incompatible.
> In MR1,
> {{org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.setOutputPath}}
> doesn't throw any exceptions but now it throws an {{IOException}}, making
> them incompatible.
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