Github user skonto commented on a diff in the pull request:
https://github.com/apache/spark/pull/19390#discussion_r145397272
--- Diff:
resource-managers/mesos/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosCoarseGrainedSchedulerBackend.scala
---
@@ -380,7 +389,8 @@ private[spark] class MesosCoarseGrainedSchedulerBackend(
} else {
declineOffer(
driver,
- offer)
+ offer,
--- End diff --
There is a debug message if canLaunchTask fails. I will create a jira and
improve logging across the module.
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