Github user dragos commented on a diff in the pull request:
https://github.com/apache/spark/pull/4984#discussion_r33791859
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -169,14 +190,15 @@ private[spark] class CoarseMesosSchedulerBackend(
* unless we've already launched more than we wanted to.
*/
override def resourceOffers(d: SchedulerDriver, offers: JList[Offer]) {
- synchronized {
+ stateLock.synchronized {
val filters = Filters.newBuilder().setRefuseSeconds(5).build()
for (offer <- offers) {
- val slaveId = offer.getSlaveId.toString
+ val slaveId = offer.getSlaveId.getValue
--- End diff --
If it even worked before, it did so by accident. You need the value of
SlaveID, not some debug string that happens to be returned by `toString`
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