Github user mridulm commented on a diff in the pull request:
https://github.com/apache/spark/pull/1525#discussion_r15725875
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala
---
@@ -47,19 +47,19 @@ class CoarseGrainedSchedulerBackend(scheduler:
TaskSchedulerImpl, actorSystem: A
{
// Use an atomic variable to track total number of cores in the cluster
for simplicity and speed
var totalCoreCount = new AtomicInteger(0)
- var totalExpectedExecutors = new AtomicInteger(0)
+ var totalExecutors = new AtomicInteger(0)
val conf = scheduler.sc.conf
private val timeout = AkkaUtils.askTimeout(conf)
private val akkaFrameSize = AkkaUtils.maxFrameSizeBytes(conf)
- // Submit tasks only after (registered executors / total expected
executors)
+ // Submit tasks only after (registered resources / total expected
resources)
// is equal to at least this value, that is double between 0 and 1.
- var minRegisteredRatio =
conf.getDouble("spark.scheduler.minRegisteredExecutorsRatio", 0)
- if (minRegisteredRatio > 1) minRegisteredRatio = 1
- // Whatever minRegisteredExecutorsRatio is arrived, submit tasks after
the time(milliseconds).
+ var minRegisteredRatio =
+ math.min(1,
conf.getDouble("spark.scheduler.minRegisteredResourcesRatio", 0))
+ // Submit tasks after maxRegisteredWaitingTime milliseconds
+ // if minRegisteredRatio has not yet been reached
val maxRegisteredWaitingTime =
- conf.getInt("spark.scheduler.maxRegisteredExecutorsWaitingTime", 30000)
+ conf.getInt("spark.scheduler.maxRegisteredResourcesWaitingTime", 30000)
--- End diff --
interface change ?
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