Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4027#discussion_r25099491
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -204,35 +209,43 @@ private[spark] class CoarseMesosSchedulerBackend(
for (offer <- offers) {
val slaveId = offer.getSlaveId.toString
- val mem = getResource(offer.getResourcesList, "mem")
- val cpus = getResource(offer.getResourcesList, "cpus").toInt
- if (totalCoresAcquired < maxCores &&
- mem >= MemoryUtils.calculateTotalMemory(sc) &&
- cpus >= 1 &&
+ var totalMem = getResource(offer.getResourcesList, "mem")
+ var totalCpus = getResource(offer.getResourcesList, "cpus").toInt
+
+ val tasks = new ArrayBuffer[MesosTaskInfo]
+
+ var executorCount = slaveIdsWithExecutors.getOrElse(slaveId, 0)
+ // Launch as many executors that the resources are available and
less
+ // than the configured max executors per slave.
--- End diff --
```
// Launch as many executors as possible with the set of available resources
```
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