Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/12388#discussion_r59923261
--- Diff:
core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala ---
@@ -434,50 +434,50 @@ class JobProgressListener(conf: SparkConf) extends
SparkListener with Logging {
val execSummary = stageData.executorSummary.getOrElseUpdate(execId,
new ExecutorSummary)
val shuffleWriteDelta =
- (taskMetrics.shuffleWriteMetrics.map(_.bytesWritten).getOrElse(0L)
- -
oldMetrics.flatMap(_.shuffleWriteMetrics).map(_.bytesWritten).getOrElse(0L))
+ taskMetrics.shuffleWriteMetrics.bytesWritten
+ - oldMetrics.map(_.shuffleWriteMetrics.bytesWritten).getOrElse(0L)
stageData.shuffleWriteBytes += shuffleWriteDelta
execSummary.shuffleWrite += shuffleWriteDelta
val shuffleWriteRecordsDelta =
- (taskMetrics.shuffleWriteMetrics.map(_.recordsWritten).getOrElse(0L)
- -
oldMetrics.flatMap(_.shuffleWriteMetrics).map(_.recordsWritten).getOrElse(0L))
+ taskMetrics.shuffleWriteMetrics.recordsWritten
+ -
oldMetrics.map(_.shuffleWriteMetrics.recordsWritten).getOrElse(0L)
stageData.shuffleWriteRecords += shuffleWriteRecordsDelta
execSummary.shuffleWriteRecords += shuffleWriteRecordsDelta
val shuffleReadDelta =
- (taskMetrics.shuffleReadMetrics.map(_.totalBytesRead).getOrElse(0L)
- -
oldMetrics.flatMap(_.shuffleReadMetrics).map(_.totalBytesRead).getOrElse(0L))
+ taskMetrics.shuffleReadMetrics.totalBytesRead
+ - oldMetrics.map(_.shuffleReadMetrics.totalBytesRead).getOrElse(0L)
--- End diff --
oh come on... no one likes mandatory semi-colons right? ð
Does this case not even generate a warning? I guess it doesn't know your
`.map` is a pure expression.
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