Repository: spark
Updated Branches:
  refs/heads/master 10c27a655 -> 7a51e7135


[SPARK-22574][MESOS][SUBMIT] Check submission request parameters

## What changes were proposed in this pull request?

It solves the problem when submitting a wrong CreateSubmissionRequest to Spark 
Dispatcher was causing a bad state of Dispatcher and making it inactive as a 
Mesos framework.

https://issues.apache.org/jira/browse/SPARK-22574

## How was this patch tested?

All spark test passed successfully.

It was tested sending a wrong request (without appArgs) before and after the 
change. The point is easy, check if the value is null before being accessed.

This was before the change, leaving the dispatcher inactive:

```
Exception in thread "Thread-22" java.lang.NullPointerException
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler.getDriverCommandValue(MesosClusterScheduler.scala:444)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler.buildDriverCommand(MesosClusterScheduler.scala:451)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler.org$apache$spark$scheduler$cluster$mesos$MesosClusterScheduler$$createTaskInfo(MesosClusterScheduler.scala:538)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler$$anonfun$scheduleTasks$1.apply(MesosClusterScheduler.scala:570)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler$$anonfun$scheduleTasks$1.apply(MesosClusterScheduler.scala:555)
        at 
scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
        at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler.scheduleTasks(MesosClusterScheduler.scala:555)
        at 
org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler.resourceOffers(MesosClusterScheduler.scala:621)
```

And after:

```
  "message" : "Malformed request: 
org.apache.spark.deploy.rest.SubmitRestProtocolException: Validation of message 
CreateSubmissionRequest 
failed!\n\torg.apache.spark.deploy.rest.SubmitRestProtocolMessage.validate(SubmitRestProtocolMessage.scala:70)\n\torg.apache.spark.deploy.rest.SubmitRequestServlet.doPost(RestSubmissionServer.scala:272)\n\tjavax.servlet.http.HttpServlet.service(HttpServlet.java:707)\n\tjavax.servlet.http.HttpServlet.service(HttpServlet.java:790)\n\torg.spark_project.jetty.servlet.ServletHolder.handle(ServletHolder.java:845)\n\torg.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)\n\torg.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)\n\torg.spark_project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)\n\torg.spark_project.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)\n\torg.spark_project.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\torg.spark
 
_project.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)\n\torg.spark_project.jetty.server.Server.handle(Server.java:524)\n\torg.spark_project.jetty.server.HttpChannel.handle(HttpChannel.java:319)\n\torg.spark_project.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)\n\torg.spark_project.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)\n\torg.spark_project.jetty.io.FillInterest.fillable(FillInterest.java:95)\n\torg.spark_project.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)\n\torg.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)\n\torg.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)\n\torg.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)\n\torg.spark_project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java
 
:671)\n\torg.spark_project.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)\n\tjava.lang.Thread.run(Thread.java:745)"
```

Author: German Schiavon <[email protected]>

Closes #19793 from Gschiavon/fix-submission-request.


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/7a51e713
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/7a51e713
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/7a51e713

Branch: refs/heads/master
Commit: 7a51e71355485bb176a1387d99ec430c5986cbec
Parents: 10c27a6
Author: German Schiavon <[email protected]>
Authored: Tue Dec 12 11:46:57 2017 -0800
Committer: Marcelo Vanzin <[email protected]>
Committed: Tue Dec 12 11:46:57 2017 -0800

----------------------------------------------------------------------
 .../spark/deploy/rest/SubmitRestProtocolRequest.scala   |  2 ++
 .../spark/deploy/rest/SubmitRestProtocolSuite.scala     |  2 ++
 .../spark/deploy/rest/mesos/MesosRestServer.scala       | 12 ++++++++----
 3 files changed, 12 insertions(+), 4 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/spark/blob/7a51e713/core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolRequest.scala
----------------------------------------------------------------------
diff --git 
a/core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolRequest.scala
 
b/core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolRequest.scala
index 0d50a76..86ddf95 100644
--- 
a/core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolRequest.scala
+++ 
b/core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolRequest.scala
@@ -46,6 +46,8 @@ private[rest] class CreateSubmissionRequest extends 
SubmitRestProtocolRequest {
     super.doValidate()
     assert(sparkProperties != null, "No Spark properties set!")
     assertFieldIsSet(appResource, "appResource")
+    assertFieldIsSet(appArgs, "appArgs")
+    assertFieldIsSet(environmentVariables, "environmentVariables")
     assertPropertyIsSet("spark.app.name")
     assertPropertyIsBoolean("spark.driver.supervise")
     assertPropertyIsNumeric("spark.driver.cores")

http://git-wip-us.apache.org/repos/asf/spark/blob/7a51e713/core/src/test/scala/org/apache/spark/deploy/rest/SubmitRestProtocolSuite.scala
----------------------------------------------------------------------
diff --git 
a/core/src/test/scala/org/apache/spark/deploy/rest/SubmitRestProtocolSuite.scala
 
b/core/src/test/scala/org/apache/spark/deploy/rest/SubmitRestProtocolSuite.scala
index 725b884..75c50af 100644
--- 
a/core/src/test/scala/org/apache/spark/deploy/rest/SubmitRestProtocolSuite.scala
+++ 
b/core/src/test/scala/org/apache/spark/deploy/rest/SubmitRestProtocolSuite.scala
@@ -86,6 +86,8 @@ class SubmitRestProtocolSuite extends SparkFunSuite {
     message.clientSparkVersion = "1.2.3"
     message.appResource = "honey-walnut-cherry.jar"
     message.mainClass = "org.apache.spark.examples.SparkPie"
+    message.appArgs = Array("two slices")
+    message.environmentVariables = Map("PATH" -> "/dev/null")
     val conf = new SparkConf(false)
     conf.set("spark.app.name", "SparkPie")
     message.sparkProperties = conf.getAll.toMap

http://git-wip-us.apache.org/repos/asf/spark/blob/7a51e713/resource-managers/mesos/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala
----------------------------------------------------------------------
diff --git 
a/resource-managers/mesos/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala
 
b/resource-managers/mesos/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala
index ff60b88..bb8dfee 100644
--- 
a/resource-managers/mesos/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala
+++ 
b/resource-managers/mesos/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala
@@ -77,10 +77,16 @@ private[mesos] class MesosSubmitRequestServlet(
   private def buildDriverDescription(request: CreateSubmissionRequest): 
MesosDriverDescription = {
     // Required fields, including the main class because python is not yet 
supported
     val appResource = Option(request.appResource).getOrElse {
-      throw new SubmitRestMissingFieldException("Application jar is missing.")
+      throw new SubmitRestMissingFieldException("Application jar 'appResource' 
is missing.")
     }
     val mainClass = Option(request.mainClass).getOrElse {
-      throw new SubmitRestMissingFieldException("Main class is missing.")
+      throw new SubmitRestMissingFieldException("Main class 'mainClass' is 
missing.")
+    }
+    val appArgs = Option(request.appArgs).getOrElse {
+      throw new SubmitRestMissingFieldException("Application arguments 
'appArgs' are missing.")
+    }
+    val environmentVariables = Option(request.environmentVariables).getOrElse {
+      throw new SubmitRestMissingFieldException("Environment variables 
'environmentVariables' are missing.")
     }
 
     // Optional fields
@@ -91,8 +97,6 @@ private[mesos] class MesosSubmitRequestServlet(
     val superviseDriver = sparkProperties.get("spark.driver.supervise")
     val driverMemory = sparkProperties.get("spark.driver.memory")
     val driverCores = sparkProperties.get("spark.driver.cores")
-    val appArgs = request.appArgs
-    val environmentVariables = request.environmentVariables
     val name = request.sparkProperties.getOrElse("spark.app.name", mainClass)
 
     // Construct driver description


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