Github user mgummelt commented on a diff in the pull request:
https://github.com/apache/spark/pull/14175#discussion_r72308905
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosCoarseGrainedSchedulerBackend.scala
---
@@ -552,7 +552,12 @@ private[spark] class
MesosCoarseGrainedSchedulerBackend(
taskId: String,
reason: String): Unit = {
stateLock.synchronized {
- removeExecutor(taskId, SlaveLost(reason))
+ // Do not call removeExecutor() after this scheduler backend was
stopped because
--- End diff --
I'm fine with this going in as-is just to the get the problem solved, but I
do still think that classes should try to ensure that their public methods are
callable w/o state consideration, so I would have rather we fixed this in the
parent. Let's try to maintain that going forward.
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