Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/7820#discussion_r36031707
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -261,7 +269,27 @@ private[spark] class CoarseMesosSchedulerBackend(
val taskId = status.getTaskId.getValue.toInt
val state = status.getState
logInfo(s"Mesos task $taskId is now $state")
+ val slaveId: String = status.getSlaveId.getValue
stateLock.synchronized {
+ if (TaskState.fromMesos(state).equals(TaskState.RUNNING) &&
--- End diff --
this block of code needs a huge comment:
```
// If the shuffle service is enabled, have the driver register with each one
// of them. This is important for cleaning up state on the shuffle services
// after this application exits; there is currently not a great way to
detect
// this through Mesos, since the shuffle services are set up independently.
```
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