Github user lianhuiwang commented on a diff in the pull request:
https://github.com/apache/spark/pull/634#discussion_r15156184
--- Diff:
yarn/common/src/main/scala/org/apache/spark/scheduler/cluster/YarnClientClusterScheduler.scala
---
@@ -37,14 +37,4 @@ private[spark] class YarnClientClusterScheduler(sc:
SparkContext, conf: Configur
val retval = YarnAllocationHandler.lookupRack(conf, host)
if (retval != null) Some(retval) else None
}
-
- override def postStartHook() {
-
- super.postStartHook()
--- End diff --
when it is yarn-client mode, super.postStartHook() donot be deleted.
because it can waitBackendReady when configured ratio executors have not been
registered.
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