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https://issues.apache.org/jira/browse/FLINK-2834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14965407#comment-14965407
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ASF GitHub Bot commented on FLINK-2834:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1272#issuecomment-149636019
Looks good to me, +1 to merge this!
> Global round-robin for temporary directories
> --------------------------------------------
>
> Key: FLINK-2834
> URL: https://issues.apache.org/jira/browse/FLINK-2834
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Affects Versions: 0.10
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Priority: Minor
>
> Currently each {{FileIOChannel}} performs a local round-robin among temporary
> directories. Initially every writer will be concurrently spilling to the same
> first directory, then the same second directory, etc. Even when evenly
> dispersed this effect will naturally occur due to the bunching effect.
> One solution is to use a global counter when selecting the temporary path.
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