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https://issues.apache.org/jira/browse/SPARK-3292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14114829#comment-14114829
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Sean Owen commented on SPARK-3292:
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Can you elaborate this? it's not clear whether you're reporting that the
process hangs, runs slowly, or creates too many files.
> Shuffle Tasks run indefinitely even though there's no inputs
> ------------------------------------------------------------
>
> Key: SPARK-3292
> URL: https://issues.apache.org/jira/browse/SPARK-3292
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 1.0.2
> Reporter: guowei
>
> such as repartition groupby join and cogroup
> it's too expensive , for example if i want outputs save as hadoop file ,then
> many emtpy file generate.
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