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https://issues.apache.org/jira/browse/PIG-2734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13288385#comment-13288385
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Johannes Schwenk commented on PIG-2734:
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Ok, thanks! My bad!
I still think this should also be mentioned in the online docs ...
So I edited the documentation in confluence
https://cwiki.apache.org/confluence/display/PIG/HowToTest
> UnitTests skipped with errors when run with umask 0002
> ------------------------------------------------------
>
> Key: PIG-2734
> URL: https://issues.apache.org/jira/browse/PIG-2734
> Project: Pig
> Issue Type: Improvement
> Reporter: Johannes Schwenk
> Priority: Minor
>
> I just figured out why the tests started with
> # ant test
> had errors. I found in the logfiles that MiniDFSCluster for example expects
> dfs data directories that are not group-writable! So doing
> # umask 0022 && ant test
> makes the tests run again.
> Alternatively on recent Ubuntu versions you can change USERGROUPS_ENAB in
> /etc/login.defs to "no"...
> This should be noted somewhere in the docs.
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