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https://issues.apache.org/jira/browse/MAPREDUCE-5911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176442#comment-14176442
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Bruno P. Kinoshita commented on MAPREDUCE-5911:
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Thanks Ivan!
Looks like Jenkins is not happy about the missing tests. I'm updating the
repository and will write a new PATCH with tests.
> Terasort TeraOutputFormat does not check for output directory existance
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-5911
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5911
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: examples
> Reporter: Ivan Mitic
> Assignee: Bruno P. Kinoshita
> Priority: Minor
> Attachments: HADOOP-5911.patch
>
>
> The enforcement that the directory must not yet exist is implemented in
> {{FileOutputFormat#checkOutputSpecs}} by throwing
> {{FileAlreadyExistsException}}. However, terasort uses a specialized output
> format, {{TeraOutputFormat}}, which is a subclass of {{FileOutputFormat}}.
> The subclass overrides {{checkOutputSpecs}}, but does not re-implement the
> existence check and throw {{FileAlreadyExistsException}}.
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