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https://issues.apache.org/jira/browse/SPARK-19937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15907481#comment-15907481
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Apache Spark commented on SPARK-19937:
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User 'jinxing64' has created a pull request for this issue:
https://github.com/apache/spark/pull/17276
> Collect metrics of block sizes when shuffle.
> --------------------------------------------
>
> Key: SPARK-19937
> URL: https://issues.apache.org/jira/browse/SPARK-19937
> Project: Spark
> Issue Type: Improvement
> Components: Shuffle
> Affects Versions: 2.1.0
> Reporter: jin xing
>
> This improvement is related to SPARK-19659 and also documented there. Metrics
> of blocks sizes(when shuffle) should be collected for later analysis. This is
> helpful for analysis when skew situations or OOM happens(though
> maxBytesInFlight is set).
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