YARN-3197. Confusing log generated by CapacityScheduler. Contributed by

Varun Saxena.

hadoop-yarn-project/CHANGES.txt

@@ -63,6 +63,9 @@ Release 2.8.0 - UNRELEASED
 
   BUG FIXES
 
+     YARN-3197. Confusing log generated by CapacityScheduler. (Varun Saxena 
+     via devaraj)
+
 Release 2.7.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java

@@ -1279,7 +1279,8 @@ public class CapacityScheduler extends
   protected synchronized void completedContainer(RMContainer rmContainer,
       ContainerStatus containerStatus, RMContainerEventType event) {
     if (rmContainer == null) {
-      LOG.info("Null container completed...");
+      LOG.info("Container " + containerStatus.getContainerId() +
+          " completed with event " + event);
       return;
     }
     
@@ -1291,7 +1292,7 @@ public class CapacityScheduler extends
     ApplicationId appId =
         container.getId().getApplicationAttemptId().getApplicationId();
     if (application == null) {
-      LOG.info("Container " + container + " of" + " unknown application "
+      LOG.info("Container " + container + " of" + " finished application "
           + appId + " completed with event " + event);
       return;
     }