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https://issues.apache.org/jira/browse/HADOOP-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12526555
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Raghu Angadi commented on HADOOP-1875:
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DFS client uses {{LocalDirAllocator.createTmpFileWrite()}}
{{LocalDirAllocator}} explicitly states that it does not check for write
permissions. I think it should try different directory when create on one dir
fails (for whatever reason).
Also during initialization it ignores the error while trying to
{{mkdirs(dir[i])}}.
> multiple dfs.client.buffer.dir directories are not treated as alternatives
> --------------------------------------------------------------------------
>
> Key: HADOOP-1875
> URL: https://issues.apache.org/jira/browse/HADOOP-1875
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Reporter: Christian Kunz
> Fix For: 0.15.0
>
>
> When specifying multiple directories in the value for dfs.client.buffer.dir,
> jobs fail when the selected directory does not exist or is not writable.
> Correct behaviour should be to create the directory when it does not exist
> and fail over to an alternative directory when it is not writable.
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