Github user skonto commented on a diff in the pull request:
https://github.com/apache/spark/pull/11157#discussion_r74526246
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosSchedulerUtils.scala
---
@@ -358,6 +376,109 @@ private[mesos] trait MesosSchedulerUtils extends
Logging {
}
/**
+ * Checks executor ports if they are within some range of the offered
list of ports ranges,
+ *
+ * @param conf the Spark Config
+ * @param ports the list of ports to check
+ * @return true if ports are within range false otherwise
+ */
+ protected def checkPorts(conf: SparkConf, ports: List[(Long, Long)]):
Boolean = {
+
+ def checkIfInRange(port: Long, ps: List[(Long, Long)]): Boolean = {
+ ps.exists(r => r._1 <= port & r._2 >= port)
+ }
+
+ val portsToCheck = nonZeroPortValuesFromConfig(conf)
+ val withinRange = portsToCheck.forall(p => checkIfInRange(p, ports))
+ // make sure we have enough ports to allocate per offer
+ ports.map(r => r._2 - r._1 + 1).sum >= portsToCheck.size && withinRange
+ }
+
+ /**
+ * Partitions port resources.
+ *
+ * @param requestedPorts non-zero ports to assign
+ * @param offeredResources the resources offered
+ * @return resources left, port resources to be used.
+ */
+ def partitionPortResources(requestedPorts: List[Long], offeredResources:
List[Resource])
+ : (List[Resource], List[Resource]) = {
+ if (requestedPorts.isEmpty) {
+ (offeredResources, List[Resource]())
+ }
+ else {
--- End diff --
ok
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