Marcelo Vanzin created SPARK-18636:
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Summary: UnsafeShuffleWriter and DiskBlockObjectWriter do not
consider encryption / compression in metrics
Key: SPARK-18636
URL: https://issues.apache.org/jira/browse/SPARK-18636
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.0.0
Reporter: Marcelo Vanzin
Priority: Minor
The code in {{UnsafeShuffleWriter}} and {{DiskBlockObjectWriter}} only wraps
the file output stream when collecting metrics, so it does not count the time
it takes to compress and / or encrypt the data. This makes the metrics a little
less accurate than they should be.
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