[SPARK-6980] Had to increase timeout on positive test case because a …

…processor slowdown could trigger an Future TimeoutException

core/src/test/scala/org/apache/spark/rpc/akka/AkkaRpcEnvSuite.scala

@@ -73,32 +73,34 @@ class AkkaRpcEnvSuite extends RpcEnvSuite {
     val echoActor = system.actorOf(Props(new EchoActor(0)), name = "echo")
     val sleepyActor = system.actorOf(Props(new EchoActor(50)), name = "sleepy")
 
+    val longProp = "spark.rpc.long.timeout"
+    val longTimeout = new RpcTimeout(1 second, longProp)
     val shortProp = "spark.rpc.short.timeout"
-    val timeout = new RpcTimeout(10 millis, shortProp)
+    val shortTimeout = new RpcTimeout(10 millis, shortProp)
 
     try {
 
       // Ask with immediate response
-      var fut = echoActor.ask("hello")(timeout.duration).mapTo[String].
-        recover(timeout.addMessageIfTimeout)
+      var fut = echoActor.ask("hello")(longTimeout.duration).mapTo[String].
+        recover(longTimeout.addMessageIfTimeout)
 
       // This should complete successfully
-      val result = timeout.awaitResult(fut)
+      val result = longTimeout.awaitResult(fut)
 
       assert(result.nonEmpty)
 
       // Ask with a delayed response and wait for response immediately that should timeout
-      fut = sleepyActor.ask("doh")(timeout.duration).mapTo[String]
+      fut = sleepyActor.ask("doh")(shortTimeout.duration).mapTo[String]
       val msg1 =
         intercept[RpcTimeoutException] {
-          timeout.awaitResult(fut)
+          shortTimeout.awaitResult(fut)
         }.getMessage()
 
       assert(msg1.contains(shortProp))
 
       // Ask with delayed response using addMessageIfTimeout in recover callback
-      fut = sleepyActor.ask("goodbye")(timeout.duration).mapTo[String].
-        recover(timeout.addMessageIfTimeout)
+      fut = sleepyActor.ask("goodbye")(shortTimeout.duration).mapTo[String].
+        recover(shortTimeout.addMessageIfTimeout)
 
       // Allow future to complete with failure using plain Await.result, this will return
       // once the future is complete to verify addMessageIfTimeout was invoked
@@ -113,7 +115,7 @@ class AkkaRpcEnvSuite extends RpcEnvSuite {
       // RpcTimeoutException, the same exception should be thrown
       val msg3 =
         intercept[RpcTimeoutException] {
-          timeout.awaitResult(fut)
+          shortTimeout.awaitResult(fut)
         }.getMessage()
 
       // Ensure description is not in message twice after addMessageIfTimeout and awaitResult