Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4960#discussion_r33733002
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -188,39 +189,33 @@ private[spark] class CoarseMesosSchedulerBackend(
taskIdToSlaveId(taskId) = slaveId
slaveIdsWithExecutors += slaveId
coresByTaskId(taskId) = cpusToUse
- val task = MesosTaskInfo.newBuilder()
+ // Gather cpu resources from the available resources and use
them in the task.
+ val (remainingResources, taskResources) =
+ partitionResources(offer.getResourcesList, "cpus", cpusToUse)
--- End diff --
These are really CPU resources right? Can you rewrite it for readability:
```
// First allocate CPU resources, then memory resources from whatever is
remaining
val (remainingResources, cpuResourcesToUse) =
partitionResources(offer.getResourcesList, "cpus", cpusToUse)
val (_, memResourcesToUse) =
partitionResources(remainingResources, "mem",
MemoryUtils.calculateTotalMemory(sc))
```
Then down there in L200 you can just do
```
.addAllResources(cpuResourcesToUse)
.addAllResources(memResourcesToUse)
```
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