YARN-4452. NPE when submit Unmanaged application. Contributed by Naganarasimha 
G R.
(cherry picked from commit 50bd067e1d63d4c80dc1e7bf4024bfaf42cf4416)

Conflicts:

        hadoop-yarn-project/CHANGES.txt


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/7d046dd3
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/7d046dd3
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/7d046dd3

Branch: refs/heads/branch-2.7
Commit: 7d046dd3751a18d3ceaadc2874dbf7322af10b1e
Parents: 6cf2fa3
Author: Jason Lowe <jl...@apache.org>
Authored: Mon Jan 25 16:32:57 2016 +0000
Committer: Jason Lowe <jl...@apache.org>
Committed: Mon Jan 25 16:32:57 2016 +0000

----------------------------------------------------------------------
 hadoop-yarn-project/CHANGES.txt                 |  6 ++++
 .../metrics/SystemMetricsPublisher.java         | 18 +++++++----
 .../metrics/TestSystemMetricsPublisher.java     | 34 ++++++++++++++++----
 3 files changed, 45 insertions(+), 13 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/7d046dd3/hadoop-yarn-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index cf47bce..1bdd633 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -51,6 +51,9 @@ Release 2.7.3 - UNRELEASED
 
     YARN-4439. Clarify NMContainerStatus#toString method. (Jian He via xgong)
 
+    YARN-4452. NPE when submit Unmanaged application. (Naganarasimha G R via
+    junping_du)
+
     YARN-4546. ResourceManager crash due to scheduling opportunity overflow.
     (Jason Lowe via junping_du)
 
@@ -949,6 +952,9 @@ Release 2.6.4 - UNRELEASED
 
   BUG FIXES
 
+    YARN-4452. NPE when submit Unmanaged application. (Naganarasimha G R
+    via junping_du)
+
     YARN-4414. Nodemanager connection errors are retried at multiple levels
     (Chang Li via jlowe)
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7d046dd3/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java
index 4d52b38..2d9ae98 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java
@@ -142,6 +142,8 @@ public class SystemMetricsPublisher extends 
CompositeService {
   public void appAttemptRegistered(RMAppAttempt appAttempt,
       long registeredTime) {
     if (publishSystemMetrics) {
+      ContainerId container = (appAttempt.getMasterContainer() == null) ? null
+          : appAttempt.getMasterContainer().getId();
       dispatcher.getEventHandler().handle(
           new AppAttemptRegisteredEvent(
               appAttempt.getAppAttemptId(),
@@ -149,7 +151,7 @@ public class SystemMetricsPublisher extends 
CompositeService {
               appAttempt.getRpcPort(),
               appAttempt.getTrackingUrl(),
               appAttempt.getOriginalTrackingUrl(),
-              appAttempt.getMasterContainer().getId(),
+              container,
               registeredTime));
     }
   }
@@ -335,9 +337,10 @@ public class SystemMetricsPublisher extends 
CompositeService {
         event.getHost());
     eventInfo.put(AppAttemptMetricsConstants.RPC_PORT_EVENT_INFO,
         event.getRpcPort());
-    eventInfo.put(
-        AppAttemptMetricsConstants.MASTER_CONTAINER_EVENT_INFO,
-        event.getMasterContainerId().toString());
+    if (event.getMasterContainerId() != null) {
+      eventInfo.put(AppAttemptMetricsConstants.MASTER_CONTAINER_EVENT_INFO,
+          event.getMasterContainerId().toString());
+    }
     tEvent.setEventInfo(eventInfo);
     entity.addEvent(tEvent);
     putEntity(entity);
@@ -362,9 +365,10 @@ public class SystemMetricsPublisher extends 
CompositeService {
         event.getFinalApplicationStatus().toString());
     eventInfo.put(AppAttemptMetricsConstants.STATE_EVENT_INFO,
         event.getYarnApplicationAttemptState().toString());
-    eventInfo.put(
-        AppAttemptMetricsConstants.MASTER_CONTAINER_EVENT_INFO,
-        event.getMasterContainerId().toString());
+    if (event.getMasterContainerId() != null) {
+      eventInfo.put(AppAttemptMetricsConstants.MASTER_CONTAINER_EVENT_INFO,
+          event.getMasterContainerId().toString());
+    }
     tEvent.setEventInfo(eventInfo);
     entity.addEvent(tEvent);
     putEntity(entity);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7d046dd3/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java
index 7ed3835..32f677b 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java
@@ -194,10 +194,30 @@ public class TestSystemMetricsPublisher {
   }
 
   @Test(timeout = 10000)
+  public void testPublishAppAttemptMetricsForUnmanagedAM() throws Exception {
+    ApplicationAttemptId appAttemptId =
+        ApplicationAttemptId.newInstance(ApplicationId.newInstance(0, 1), 1);
+    RMAppAttempt appAttempt = createRMAppAttempt(appAttemptId,true);
+    metricsPublisher.appAttemptRegistered(appAttempt, Integer.MAX_VALUE + 1L);
+    RMApp app = mock(RMApp.class);
+    
when(app.getFinalApplicationStatus()).thenReturn(FinalApplicationStatus.UNDEFINED);
+    metricsPublisher.appAttemptFinished(appAttempt, 
RMAppAttemptState.FINISHED, app,
+        Integer.MAX_VALUE + 2L);
+    TimelineEntity entity = null;
+    do {
+      entity =
+          store.getEntity(appAttemptId.toString(),
+              AppAttemptMetricsConstants.ENTITY_TYPE,
+              EnumSet.allOf(Field.class));
+      // ensure two events are both published before leaving the loop
+    } while (entity == null || entity.getEvents().size() < 2);
+  }
+
+  @Test(timeout = 10000)
   public void testPublishAppAttemptMetrics() throws Exception {
     ApplicationAttemptId appAttemptId =
         ApplicationAttemptId.newInstance(ApplicationId.newInstance(0, 1), 1);
-    RMAppAttempt appAttempt = createRMAppAttempt(appAttemptId);
+    RMAppAttempt appAttempt = createRMAppAttempt(appAttemptId, false);
     metricsPublisher.appAttemptRegistered(appAttempt, Integer.MAX_VALUE + 1L);
     RMApp app = mock(RMApp.class);
     
when(app.getFinalApplicationStatus()).thenReturn(FinalApplicationStatus.UNDEFINED);
@@ -356,15 +376,17 @@ public class TestSystemMetricsPublisher {
   }
 
   private static RMAppAttempt createRMAppAttempt(
-      ApplicationAttemptId appAttemptId) {
+      ApplicationAttemptId appAttemptId, boolean unmanagedAMAttempt) {
     RMAppAttempt appAttempt = mock(RMAppAttempt.class);
     when(appAttempt.getAppAttemptId()).thenReturn(appAttemptId);
     when(appAttempt.getHost()).thenReturn("test host");
     when(appAttempt.getRpcPort()).thenReturn(-100);
-    Container container = mock(Container.class);
-    when(container.getId())
-        .thenReturn(ContainerId.newContainerId(appAttemptId, 1));
-    when(appAttempt.getMasterContainer()).thenReturn(container);
+    if (!unmanagedAMAttempt) {
+      Container container = mock(Container.class);
+      when(container.getId())
+          .thenReturn(ContainerId.newContainerId(appAttemptId, 1));
+      when(appAttempt.getMasterContainer()).thenReturn(container);
+    }
     when(appAttempt.getDiagnostics()).thenReturn("test diagnostics info");
     when(appAttempt.getTrackingUrl()).thenReturn("test tracking url");
     when(appAttempt.getOriginalTrackingUrl()).thenReturn(

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