Thomas Graves created SPARK-20970:
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Summary: Deprecate TaskMetrics._updatedBlockStatuses
Key: SPARK-20970
URL: https://issues.apache.org/jira/browse/SPARK-20970
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.2.0
Reporter: Thomas Graves
TaskMetrics._updatedBlockStatuses isn't used anywhere internally by spark. It
could be used by users though since its exposed by SparkListenerTaskEnd. We
made it configurable to turn off the tracking of it since it uses a lot of
memory in https://issues.apache.org/jira/browse/SPARK-20923. That config is
still true for backwards compatibility. We should turn that to false in next
release and deprecate that api altogether.
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