caoxuewen created SPARK-26289:
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Summary: cleanup enablePerfMetrics parameter from BytesToBytesMap
Key: SPARK-26289
URL: https://issues.apache.org/jira/browse/SPARK-26289
Project: Spark
Issue Type: Improvement
Components: Spark Core, SQL
Affects Versions: 2.5.0
Reporter: caoxuewen
enablePerfMetrics was originally designed in BytesToBytesMap to control
getNumHashCollisions getTimeSpentResizingNs getAverageProbesPerLookup.
However, as the Spark version gradual progress. This parameter is only used for
getAverageProbesPerLookup and always given to true when using BytesToBytesMap.
it is also dangerous to determine whether getAverageProbesPerLookup opens and
throws an IllegalStateException exception. So this pr will be remove
enablePerfMetrics parameter from BytesToBytesMap. thanks.
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