Kay Ousterhout created SPARK-3577:
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Summary: Shuffle write time incorrect for sort-based shuffle
Key: SPARK-3577
URL: https://issues.apache.org/jira/browse/SPARK-3577
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.1.0
Reporter: Kay Ousterhout
After this change
https://github.com/apache/spark/commit/4e982364426c7d65032e8006c63ca4f9a0d40470
(cc [~sandyr] [~pwendell]) the ExternalSorter passes its own
ShuffleWriteMetrics into ExternalSorter. The write time recorded in those
metrics is never used -- meaning that when someone is using sort-based shuffle,
the shuffle write time will be recorded as 0.
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