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[SPARK-10514] [Mesos] waiting for min no of total cores acquired by Spark by implementing the sufficientResourcesRegistered method #8672

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[SPARK-10514] [Mesos] waiting for min no of total cores acquired by Spark by implementing the sufficientResourcesRegistered method #8672

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[SPARK-10514] [Mesos] waiting for min no of total cores acquired by S…
SleepyThread Sep 9, 2015
bc06cbd
[SPARK-10514] [Mesos] Updating the documents for spark.scheduler.minR…
SleepyThread Sep 10, 2015
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4 changes: 4 additions & 0 deletions ...src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
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Expand Up @@ -222,6 +222,10 @@ private[spark] class CoarseMesosSchedulerBackend(
markRegistered()
}

override def sufficientResourcesRegistered(): Boolean = {
totalCoresAcquired >= maxCores * minRegisteredRatio
}

override def disconnected(d: SchedulerDriver) {}

override def reregistered(d: SchedulerDriver, masterInfo: MasterInfo) {}
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5 changes: 3 additions & 2 deletions docs/configuration.md
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Expand Up @@ -1109,10 +1109,11 @@ Apart from these, the following properties are also available, and may be useful
</tr>
<tr>
<td><code>spark.scheduler.minRegisteredResourcesRatio</code></td>
<td>0.8 for YARN mode; 0.0 otherwise</td>
<td>0.8 for YARN mode; 0.0 for standalone mode and Mesos Coarse grained mode</td>
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coarse-grained, I'll fix this on merge

<td>
The minimum ratio of registered resources (registered resources / total expected resources)
(resources are executors in yarn mode, CPU cores in standalone mode)
(resources are executors in yarn mode, CPU cores in standalone mode and Mesos Coarsed Grained
mode ['spark.cores.max' value is total expected resources for Mesos Coarse grained mode] )
to wait for before scheduling begins. Specified as a double between 0.0 and 1.0.
Regardless of whether the minimum ratio of resources has been reached,
the maximum amount of time it will wait before scheduling begins is controlled by config
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