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https://issues.apache.org/jira/browse/MAPREDUCE-1510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835652#action_12835652
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Rodrigo Schmidt commented on MAPREDUCE-1510:
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Hi, Dhruba!
I just looked at the unit tests and it doesn't seem like we have this test that
you mentioned.
But you are right! In this scenario the file also gets re-raided. I didn't
change that behavior.
I just allowed files to be re-raided in case they lose their parity files for
some reason.
> RAID should regenerate parity files if they get deleted
> -------------------------------------------------------
>
> Key: MAPREDUCE-1510
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1510
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/raid
> Reporter: Rodrigo Schmidt
> Assignee: Rodrigo Schmidt
> Attachments: MAPREDUCE-1510.patch
>
>
> Currently, if a source file has a replication factor lower or equal to that
> expected by RAID, the file is skipped and no parity file is generated. I
> don't think this is a good behavior since parity files can get wrongly
> deleted, leaving the source file with a low replication factor. In that case,
> raid should be able to recreate the parity file.
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