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https://issues.apache.org/jira/browse/SPARK-26289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-26289:
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Assignee: Apache Spark
> 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
> Assignee: Apache Spark
> Priority: Major
>
> 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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