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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2015/05/07 01:44:59 UTC
[jira] [Created] (SPARK-7413) Time to write shuffle spill files is
not captured in ShuffleWriteMetrics
Josh Rosen created SPARK-7413:
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Summary: Time to write shuffle spill files is not captured in ShuffleWriteMetrics
Key: SPARK-7413
URL: https://issues.apache.org/jira/browse/SPARK-7413
Project: Spark
Issue Type: Bug
Components: Shuffle
Reporter: Josh Rosen
In ExternalSorter's {{spillToMergeableFile()}} method, we pass ShuffleWriteMetrics instances to the disk writers, but discard the {{shuffleWriteTime}} metrics captured here. I think that we should account for this IO time, possibly by introducing new metrics to distinguish time spent writing spills vs. writing final shuffle output and extending the UI to break down the overall IO write time in terms of these two components.
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