diff --git a/core/src/main/scala/org/apache/spark/executor/Executor.scala b/core/src/main/scala/org/apache/spark/executor/Executor.scala index dd903dc65d204..acae448a9c66f 100644 --- a/core/src/main/scala/org/apache/spark/executor/Executor.scala +++ b/core/src/main/scala/org/apache/spark/executor/Executor.scala @@ -360,7 +360,16 @@ private[spark] class Executor( if (!taskRunner.attemptedTask.isEmpty) { Option(taskRunner.task).flatMap(_.metrics).foreach { metrics => metrics.updateShuffleReadMetrics - tasksMetrics += ((taskRunner.taskId, metrics)) + if (isLocal) { + // JobProgressListener will hold an reference of it during + // onExecutorMetricsUpdate(), then JobProgressListener can not see + // the changes of metrics any more, so make a deep copy of it + val copiedMetrics = Utils.deserialize[TaskMetrics](Utils.serialize(metrics)) + tasksMetrics += ((taskRunner.taskId, copiedMetrics)) + } else { + // It will be copied by serialization + tasksMetrics += ((taskRunner.taskId, metrics)) + } } } }