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[SPARK-8981][CORE][FOLLOW-UP] Clean up MDC properties after running a task #28756

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Ngone51 wants to merge 4 commits into from
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[SPARK-8981][CORE][FOLLOW-UP] Clean up MDC properties after running a task #28756

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fe27f88
fix
Ngone51 Jun 8, 2020
be3d752
remove setMDC
Ngone51 Jun 8, 2020
0cefc61
address comments
Ngone51 Jun 11, 2020
2f1b86b
clear MDC at the beginning
Ngone51 Jun 11, 2020
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12 changes: 4 additions & 8 deletions core/src/main/scala/org/apache/spark/executor/Executor.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -401,9 +401,7 @@ private[spark] class Executor(
}

override def run(): Unit = {

setMDCForTask(taskName, mdcProperties)

threadId = Thread.currentThread.getId
Thread.currentThread.setName(threadName)
val threadMXBean = ManagementFactory.getThreadMXBean
Expand Down Expand Up @@ -703,11 +701,11 @@ private[spark] class Executor(
}

private def setMDCForTask(taskName: String, mdc: Seq[(String, String)]): Unit = {
// make sure we run the task with the user-specified mdc properties only
MDC.clear()
mdc.foreach { case (key, value) => MDC.put(key, value) }
// avoid overriding the takName by the user
MDC.put("taskName", taskName)

mdc.foreach { case (key, value) =>
MDC.put(key, value)
}
}

/**
Expand Down Expand Up @@ -750,9 +748,7 @@ private[spark] class Executor(
private[this] val takeThreadDump: Boolean = conf.get(TASK_REAPER_THREAD_DUMP)

override def run(): Unit = {

setMDCForTask(taskRunner.taskName, taskRunner.mdcProperties)

val startTimeNs = System.nanoTime()
def elapsedTimeNs = System.nanoTime() - startTimeNs
def timeoutExceeded(): Boolean = killTimeoutNs > 0 && elapsedTimeNs > killTimeoutNs
Expand Down