Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/21898#discussion_r207758008 --- Diff: core/src/main/scala/org/apache/spark/BarrierTaskContext.scala --- @@ -80,7 +101,45 @@ class BarrierTaskContext( @Experimental @Since("2.4.0") def barrier(): Unit = { - // TODO SPARK-24817 implement global barrier. + val callSite = Utils.getCallSite() + logInfo(s"Task $taskAttemptId from Stage $stageId(Attempt $stageAttemptNumber) has entered " + + s"the global sync, current barrier epoch is $barrierEpoch.") + logTrace(s"Current callSite: $callSite") --- End diff -- +1
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