Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/13077#discussion_r72010691
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosClusterScheduler.scala
---
@@ -502,41 +502,53 @@ private[spark] class MesosClusterScheduler(
} else {
val offer = offerOption.get
val taskId =
TaskID.newBuilder().setValue(submission.submissionId).build()
- val (remainingResources, cpuResourcesToUse) =
- partitionResources(offer.resources, "cpus", driverCpu)
- val (finalResources, memResourcesToUse) =
- partitionResources(remainingResources.asJava, "mem", driverMem)
- val commandInfo = buildDriverCommand(submission)
- val appName = submission.schedulerProperties("spark.app.name")
- val taskInfo = TaskInfo.newBuilder()
- .setTaskId(taskId)
- .setName(s"Driver for $appName")
- .setSlaveId(offer.slaveId)
- .setCommand(commandInfo)
- .addAllResources(cpuResourcesToUse.asJava)
- .addAllResources(memResourcesToUse.asJava)
- offer.resources = finalResources.asJava
-
submission.schedulerProperties.get("spark.mesos.executor.docker.image").foreach
{ image =>
- val container = taskInfo.getContainerBuilder()
- val volumes = submission.schedulerProperties
- .get("spark.mesos.executor.docker.volumes")
- .map(MesosSchedulerBackendUtil.parseVolumesSpec)
- val portmaps = submission.schedulerProperties
- .get("spark.mesos.executor.docker.portmaps")
- .map(MesosSchedulerBackendUtil.parsePortMappingsSpec)
- MesosSchedulerBackendUtil.addDockerInfo(
- container, image, volumes = volumes, portmaps = portmaps)
- taskInfo.setContainer(container.build())
+ var commandInfo: CommandInfo = null
+ try {
+ commandInfo = buildDriverCommand(submission)
+ } catch {
+ case e: SparkException =>
+ afterLaunchCallback(submission.submissionId)
+ finishedDrivers += new MesosClusterSubmissionState(submission,
taskId,
+ SlaveID.newBuilder().setValue("").build(), None, null, None)
+ logError(s"Failed to launch the driver with id:
${submission.submissionId}, " +
+ s"cpu: $driverCpu, mem: $driverMem, reason: ${e.getMessage}")
+ }
+ if (commandInfo != null) {
--- End diff --
Rather than make a big long if statement, is it simpler and clearer to just
return from the method in the catch block? then you can even ...
```
val commandInfo = try { buildDriverCommand(submission) } ...
```
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