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https://issues.apache.org/jira/browse/MAPREDUCE-5911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated MAPREDUCE-5911:
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Description: 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}}.
> 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: Ivan Mitic
> Priority: Minor
>
> 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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