[SPARK-11771][YARN][TRIVIAL] maximum memory in yarn is controlled by two...

[SPARK-11771][YARN][TRIVIAL] maximum memory in yarn is controlled by two params have both in error msg

When we exceed the max memory tell users to increase both params instead of just the one.

Author: Holden Karau <holden@us.ibm.com>

Closes #9758 from holdenk/SPARK-11771-maximum-memory-in-yarn-is-controlled-by-two-params-have-both-in-error-msg.

yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala

@@ -258,7 +258,8 @@ private[spark] class Client(
     if (executorMem > maxMem) {
       throw new IllegalArgumentException(s"Required executor memory (${args.executorMemory}" +
         s"+$executorMemoryOverhead MB) is above the max threshold ($maxMem MB) of this cluster! " +
-        "Please increase the value of 'yarn.scheduler.maximum-allocation-mb'.")
+        "Please check the values of 'yarn.scheduler.maximum-allocation-mb' and/or " +
+        "'yarn.nodemanager.resource.memory-mb'.")
     }
     val amMem = args.amMemory + amMemoryOverhead
     if (amMem > maxMem) {