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The following commit(s) were added to refs/heads/branch-2 by this push:
     new 6e7dfc9  YARN-9763. Print application tags in application summary. 
Contributed by Manoj Kumar
6e7dfc9 is described below

commit 6e7dfc998147133d7935609a625aa7e56eac34c5
Author: Jonathan Hung <[email protected]>
AuthorDate: Fri Sep 6 10:59:14 2019 -0700

    YARN-9763. Print application tags in application summary. Contributed by 
Manoj Kumar
---
 .../apache/hadoop/yarn/server/resourcemanager/RMAppManager.java    | 7 +++++--
 .../apache/hadoop/yarn/server/resourcemanager/TestAppManager.java  | 3 +++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMAppManager.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMAppManager.java
index 3412188..2ec02f4 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMAppManager.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMAppManager.java
@@ -21,7 +21,7 @@ import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
-
+import java.util.TreeSet;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
@@ -195,7 +195,10 @@ public class RMAppManager implements 
EventHandler<RMAppManagerEvent>,
               .getResourceSecondsString(metrics.getResourceSecondsMap()))
           .add("preemptedResourceSeconds", StringHelper
               .getResourceSecondsString(
-                  metrics.getPreemptedResourceSecondsMap()));
+                  metrics.getPreemptedResourceSecondsMap()))
+          .add("applicationTags", StringHelper.CSV_JOINER.join(
+              app.getApplicationTags() != null ? new TreeSet<>(
+                  app.getApplicationTags()) : Collections.<String>emptySet()));
       return summary;
     }
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestAppManager.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestAppManager.java
index 187fa3e..584fe94 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestAppManager.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestAppManager.java
@@ -101,6 +101,7 @@ import org.mockito.stubbing.Answer;
 
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
 
 /**
  * Testing applications being retired from RM.
@@ -831,6 +832,7 @@ public class TestAppManager{
     when(app.getApplicationType()).thenReturn("MAPREDUCE");
     when(app.getSubmitTime()).thenReturn(1000L);
     when(app.getLaunchTime()).thenReturn(2000L);
+    when(app.getApplicationTags()).thenReturn(Sets.newHashSet("tag2", "tag1"));
     Map<String, Long> resourceSecondsMap = new HashMap<>();
     resourceSecondsMap.put(ResourceInformation.MEMORY_MB.getName(), 16384L);
     resourceSecondsMap.put(ResourceInformation.VCORES.getName(), 64L);
@@ -858,6 +860,7 @@ public class TestAppManager{
     Assert.assertTrue(msg.contains("preemptedNonAMContainers=10"));
     Assert.assertTrue(msg.contains("preemptedResources=<memory:1234\\, 
vCores:56>"));
     Assert.assertTrue(msg.contains("applicationType=MAPREDUCE"));
+    Assert.assertTrue(msg.contains("applicationTags=tag1\\,tag2"));
  }
   
   @Test


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