Revert "YARN-1462. Made RM write application tags to timeline server and exposed them to users via generic history web UI and REST API. Contributed by Xuan Gong."

This reverts commit 4e2ed34d20.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/NotRunningJob.java

@@ -90,7 +90,7 @@ public class NotRunningJob implements MRClientProtocol {
     return ApplicationReport.newInstance(unknownAppId, unknownAttemptId,
       "N/A", "N/A", "N/A", "N/A", 0, null, YarnApplicationState.NEW, "N/A",
       "N/A", 0, 0, FinalApplicationStatus.UNDEFINED, null, "N/A", 0.0f,
-      YarnConfiguration.DEFAULT_APPLICATION_TYPE, null, null);
+      YarnConfiguration.DEFAULT_APPLICATION_TYPE, null);
   }
 
   NotRunningJob(ApplicationReport applicationReport, JobState jobState) {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestClientServiceDelegate.java

@@ -516,7 +516,7 @@ public class TestClientServiceDelegate {
     return ApplicationReport.newInstance(appId, attemptId, "user", "queue",
       "appname", "host", 124, null, YarnApplicationState.FINISHED,
       "diagnostics", "url", 0, 0, FinalApplicationStatus.SUCCEEDED, null,
-      "N/A", 0.0f, YarnConfiguration.DEFAULT_APPLICATION_TYPE, null, null);
+      "N/A", 0.0f, YarnConfiguration.DEFAULT_APPLICATION_TYPE, null);
   }
 
   private ApplicationReport getRunningApplicationReport(String host, int port) {
@@ -526,7 +526,7 @@ public class TestClientServiceDelegate {
     return ApplicationReport.newInstance(appId, attemptId, "user", "queue",
       "appname", host, port, null, YarnApplicationState.RUNNING, "diagnostics",
       "url", 0, 0, FinalApplicationStatus.UNDEFINED, null, "N/A", 0.0f,
-      YarnConfiguration.DEFAULT_APPLICATION_TYPE, null, null);
+      YarnConfiguration.DEFAULT_APPLICATION_TYPE, null);
   }
 
   private ResourceMgrDelegate getRMDelegate() throws IOException {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestYARNRunner.java

@@ -196,7 +196,7 @@ public class TestYARNRunner extends TestCase {
             ApplicationReport.newInstance(appId, null, "tmp", "tmp", "tmp",
                 "tmp", 0, null, YarnApplicationState.FINISHED, "tmp", "tmp",
                 0l, 0l, FinalApplicationStatus.SUCCEEDED, null, null, 0f,
-                "tmp", null, null));
+                "tmp", null));
     yarnRunner.killJob(jobId);
     verify(clientDelegate).killJob(jobId);
   }

hadoop-yarn-project/CHANGES.txt

@@ -453,9 +453,6 @@ Release 2.7.1 - UNRELEASED
     YARN-3723. Need to clearly document primaryFilter and otherInfo value type.
     (Zhijie Shen via xgong)
 
-    YARN-1462. Made RM write application tags to timeline server and exposed them
-    to users via generic history web UI and REST API. (Xuan Gong via zjshen)
-
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ApplicationReport.java

@@ -59,8 +59,7 @@ public abstract class ApplicationReport {
       YarnApplicationState state, String diagnostics, String url,
       long startTime, long finishTime, FinalApplicationStatus finalStatus,
       ApplicationResourceUsageReport appResources, String origTrackingUrl,
-      float progress, String applicationType, Token amRmToken,
+      float progress, String applicationType, Token amRmToken) {
-      Set<String> tags) {
     ApplicationReport report = Records.newRecord(ApplicationReport.class);
     report.setApplicationId(applicationId);
     report.setCurrentApplicationAttemptId(applicationAttemptId);
@@ -81,7 +80,6 @@ public abstract class ApplicationReport {
     report.setProgress(progress);
     report.setApplicationType(applicationType);
     report.setAMRMToken(amRmToken);
-    report.setApplicationTags(tags);
     return report;
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/ProtocolHATestBase.java

@@ -647,7 +647,7 @@ public abstract class ProtocolHATestBase extends ClientBaseWithFixes {
               "fakeQueue", "fakeApplicationName", "localhost", 0, null,
               YarnApplicationState.FINISHED, "fake an application report", "",
               1000l, 1200l, FinalApplicationStatus.FAILED, null, "", 50f,
-              "fakeApplicationType", null, null);
+              "fakeApplicationType", null);
       return report;
     }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAHSClient.java

@@ -334,7 +334,7 @@ public class TestAHSClient {
             "queue", "appname", "host", 124, null,
             YarnApplicationState.RUNNING, "diagnostics", "url", 0, 0,
             FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN",
-            null, null);
+            null);
       List<ApplicationReport> applicationReports =
           new ArrayList<ApplicationReport>();
       applicationReports.add(newApplicationReport);
@@ -391,7 +391,7 @@ public class TestAHSClient {
             "queue2", "appname2", "host2", 125, null,
             YarnApplicationState.FINISHED, "diagnostics2", "url2", 2, 2,
             FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.63789f,
-            "NON-YARN", null, null);
+            "NON-YARN", null);
       applicationReports.add(newApplicationReport2);
 
       ApplicationId applicationId3 = ApplicationId.newInstance(1234, 7);
@@ -401,7 +401,7 @@ public class TestAHSClient {
             "queue3", "appname3", "host3", 126, null,
             YarnApplicationState.RUNNING, "diagnostics3", "url3", 3, 3,
             FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.73789f,
-            "MAPREDUCE", null, null);
+            "MAPREDUCE", null);
       applicationReports.add(newApplicationReport3);
 
       ApplicationId applicationId4 = ApplicationId.newInstance(1234, 8);
@@ -411,7 +411,7 @@ public class TestAHSClient {
             "queue4", "appname4", "host4", 127, null,
             YarnApplicationState.FAILED, "diagnostics4", "url4", 4, 4,
             FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.83789f,
-            "NON-MAPREDUCE", null, null);
+            "NON-MAPREDUCE", null);
       applicationReports.add(newApplicationReport4);
       reports = applicationReports;
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java

@@ -613,8 +613,7 @@ public class TestYarnClient {
           applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
           "user", "queue", "appname", "host", 124, null,
           YarnApplicationState.RUNNING, "diagnostics", "url", 0, 0,
-          FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+          FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-          null);
       List<ApplicationReport> applicationReports = new ArrayList<ApplicationReport>();
       applicationReports.add(newApplicationReport);
       List<ApplicationAttemptReport> appAttempts = new ArrayList<ApplicationAttemptReport>();
@@ -690,7 +689,7 @@ public class TestYarnClient {
           "user2", "queue2", "appname2", "host2", 125, null,
           YarnApplicationState.FINISHED, "diagnostics2", "url2", 2, 2,
           FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.63789f, "NON-YARN", 
-          null, null);
+        null);
       applicationReports.add(newApplicationReport2);
 
       ApplicationId applicationId3 = ApplicationId.newInstance(1234, 7);
@@ -699,7 +698,7 @@ public class TestYarnClient {
           "user3", "queue3", "appname3", "host3", 126, null,
           YarnApplicationState.RUNNING, "diagnostics3", "url3", 3, 3,
           FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.73789f, "MAPREDUCE",
-          null, null);
+        null);
       applicationReports.add(newApplicationReport3);
 
       ApplicationId applicationId4 = ApplicationId.newInstance(1234, 8);
@@ -710,7 +709,7 @@ public class TestYarnClient {
               "user4", "queue4", "appname4", "host4", 127, null,
               YarnApplicationState.FAILED, "diagnostics4", "url4", 4, 4,
               FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.83789f,
-              "NON-MAPREDUCE", null, null);
+              "NON-MAPREDUCE", null);
       applicationReports.add(newApplicationReport4);
       return applicationReports;
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java

@@ -104,7 +104,7 @@ public class TestYarnCLI {
           "user", "queue", "appname", "host", 124, null,
           YarnApplicationState.FINISHED, "diagnostics", "url", 0, 0,
           FinalApplicationStatus.SUCCEEDED, usageReport, "N/A", 0.53789f, "YARN",
-          null, null);
+          null);
       newApplicationReport.setLogAggregationStatus(LogAggregationStatus.SUCCEEDED);
       when(client.getApplicationReport(any(ApplicationId.class))).thenReturn(
           newApplicationReport);
@@ -350,8 +350,7 @@ public class TestYarnCLI {
         applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
         "user", "queue", "appname", "host", 124, null,
         YarnApplicationState.RUNNING, "diagnostics", "url", 0, 0,
-        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-        null);
     List<ApplicationReport> applicationReports = new ArrayList<ApplicationReport>();
     applicationReports.add(newApplicationReport);
 
@@ -361,7 +360,7 @@ public class TestYarnCLI {
         "user2", "queue2", "appname2", "host2", 125, null,
         YarnApplicationState.FINISHED, "diagnostics2", "url2", 2, 2,
         FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.63789f, "NON-YARN", 
-        null, null);
+      null);
     applicationReports.add(newApplicationReport2);
 
     ApplicationId applicationId3 = ApplicationId.newInstance(1234, 7);
@@ -370,7 +369,7 @@ public class TestYarnCLI {
         "user3", "queue3", "appname3", "host3", 126, null,
         YarnApplicationState.RUNNING, "diagnostics3", "url3", 3, 3,
         FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.73789f, "MAPREDUCE", 
-        null, null);
+        null);
     applicationReports.add(newApplicationReport3);
 
     ApplicationId applicationId4 = ApplicationId.newInstance(1234, 8);
@@ -379,7 +378,7 @@ public class TestYarnCLI {
         "user4", "queue4", "appname4", "host4", 127, null,
         YarnApplicationState.FAILED, "diagnostics4", "url4", 4, 4,
         FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.83789f, "NON-MAPREDUCE",
-        null, null);
+        null);
     applicationReports.add(newApplicationReport4);
 
     ApplicationId applicationId5 = ApplicationId.newInstance(1234, 9);
@@ -388,7 +387,7 @@ public class TestYarnCLI {
         "user5", "queue5", "appname5", "host5", 128, null,
         YarnApplicationState.ACCEPTED, "diagnostics5", "url5", 5, 5,
         FinalApplicationStatus.KILLED, null, "N/A", 0.93789f, "HIVE",
-        null, null);
+        null);
     applicationReports.add(newApplicationReport5);
 
     ApplicationId applicationId6 = ApplicationId.newInstance(1234, 10);
@@ -397,7 +396,7 @@ public class TestYarnCLI {
         "user6", "queue6", "appname6", "host6", 129, null,
         YarnApplicationState.SUBMITTED, "diagnostics6", "url6", 6, 6,
         FinalApplicationStatus.KILLED, null, "N/A", 0.99789f, "PIG",
-        null, null);
+        null);
     applicationReports.add(newApplicationReport6);
 
     // Test command yarn application -list
@@ -821,8 +820,7 @@ public class TestYarnCLI {
         applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
         "user", "queue", "appname", "host", 124, null,
         YarnApplicationState.FINISHED, "diagnostics", "url", 0, 0,
-        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-        null);
     when(client.getApplicationReport(any(ApplicationId.class))).thenReturn(
         newApplicationReport2);
     int result = cli.run(new String[] { "application","-kill", applicationId.toString() });
@@ -835,8 +833,7 @@ public class TestYarnCLI {
         applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
         "user", "queue", "appname", "host", 124, null,
         YarnApplicationState.RUNNING, "diagnostics", "url", 0, 0,
-        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-        null);
     when(client.getApplicationReport(any(ApplicationId.class))).thenReturn(
         newApplicationReport);
     result = cli.run(new String[] { "application","-kill", applicationId.toString() });
@@ -871,8 +868,7 @@ public class TestYarnCLI {
         applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
         "user", "queue", "appname", "host", 124, null,
         YarnApplicationState.FINISHED, "diagnostics", "url", 0, 0,
-        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-        null);
     when(client.getApplicationReport(any(ApplicationId.class))).thenReturn(
         newApplicationReport2);
     int result = cli.run(new String[] { "application", "-movetoqueue",
@@ -887,8 +883,7 @@ public class TestYarnCLI {
         applicationId, ApplicationAttemptId.newInstance(applicationId, 1),
         "user", "queue", "appname", "host", 124, null,
         YarnApplicationState.RUNNING, "diagnostics", "url", 0, 0,
-        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null,
+        FinalApplicationStatus.SUCCEEDED, null, "N/A", 0.53789f, "YARN", null);
-        null);
     when(client.getApplicationReport(any(ApplicationId.class))).thenReturn(
         newApplicationReport);
     result = cli.run(new String[] { "application", "-movetoqueue",

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/api/TestApplicatonReport.java

@@ -58,8 +58,7 @@ public class TestApplicatonReport {
         ApplicationReport.newInstance(appId, appAttemptId, "user", "queue",
           "appname", "host", 124, null, YarnApplicationState.FINISHED,
           "diagnostics", "url", 0, 0, FinalApplicationStatus.SUCCEEDED, null,
-          "N/A", 0.53789f, YarnConfiguration.DEFAULT_APPLICATION_TYPE, null,
+          "N/A", 0.53789f, YarnConfiguration.DEFAULT_APPLICATION_TYPE, null);
-          null);
     return appReport;
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryManagerImpl.java

@@ -139,7 +139,7 @@ public class ApplicationHistoryManagerImpl extends AbstractService implements
       appHistory.getYarnApplicationState(), appHistory.getDiagnosticsInfo(),
       trackingUrl, appHistory.getStartTime(), appHistory.getFinishTime(),
       appHistory.getFinalApplicationStatus(), null, "", 100,
-      appHistory.getApplicationType(), null, null);
+      appHistory.getApplicationType(), null);
   }
 
   private ApplicationAttemptHistoryData getLastAttempt(ApplicationId appId)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryManagerOnTimelineStore.java

@@ -19,14 +19,11 @@
 package org.apache.hadoop.yarn.server.applicationhistoryservice;
 
 import java.io.IOException;
-import java.util.Collection;
 import java.util.EnumSet;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -252,7 +249,6 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
     FinalApplicationStatus finalStatus = FinalApplicationStatus.UNDEFINED;
     YarnApplicationState state = YarnApplicationState.ACCEPTED;
     ApplicationResourceUsageReport appResources = null;
-    Set<String> appTags = null;
     Map<ApplicationAccessType, String> appViewACLs =
         new HashMap<ApplicationAccessType, String>();
     Map<String, Object> entityInfo = entity.getOtherInfo();
@@ -274,7 +270,7 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
             ConverterUtils.toApplicationId(entity.getEntityId()),
             latestApplicationAttemptId, user, queue, name, null, -1, null, state,
             diagnosticsInfo, null, createdTime, finishedTime, finalStatus, null,
-            null, progress, type, null, appTags), appViewACLs);
+            null, progress, type, null), appViewACLs);
       }
       if (entityInfo.containsKey(ApplicationMetricsConstants.QUEUE_ENTITY_INFO)) {
         queue =
@@ -299,17 +295,6 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
         appResources=ApplicationResourceUsageReport
             .newInstance(0, 0, null, null, null, memorySeconds, vcoreSeconds);
       }
-      if (entityInfo.containsKey(ApplicationMetricsConstants.APP_TAGS_INFO)) {
-        appTags = new HashSet<String>();
-        Object obj = entityInfo.get(ApplicationMetricsConstants.APP_TAGS_INFO);
-        if (obj != null && obj instanceof Collection<?>) {
-          for(Object o : (Collection<?>)obj) {
-            if (o != null) {
-              appTags.add(o.toString());
-            }
-          }
-        }
-      }
     }
     List<TimelineEvent> events = entity.getEvents();
     if (events != null) {
@@ -362,7 +347,7 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
         ConverterUtils.toApplicationId(entity.getEntityId()),
         latestApplicationAttemptId, user, queue, name, null, -1, null, state,
         diagnosticsInfo, null, createdTime, finishedTime, finalStatus, appResources,
-        null, progress, type, null, appTags), appViewACLs);
+        null, progress, type, null), appViewACLs);
   }
 
   private static ApplicationAttemptReport convertToApplicationAttemptReport(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/TestApplicationHistoryManagerOnTimelineStore.java

@@ -22,9 +22,7 @@ import java.security.PrivilegedExceptionAction;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.Map;
-import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.SaslRpcServer.AuthMethod;
@@ -187,9 +185,6 @@ public class TestApplicationHistoryManagerOnTimelineStore {
       Assert.assertEquals(Integer.MAX_VALUE + 3L
           + +app.getApplicationId().getId(), app.getFinishTime());
       Assert.assertTrue(Math.abs(app.getProgress() - 1.0F) < 0.0001);
-      Assert.assertEquals(2, app.getApplicationTags().size());
-      Assert.assertTrue(app.getApplicationTags().contains("Test_APP_TAGS_1"));
-      Assert.assertTrue(app.getApplicationTags().contains("Test_APP_TAGS_2"));
       // App 2 doesn't have the ACLs, such that the default ACLs " " will be used.
       // Nobody except admin and owner has access to the details of the app.
       if ((i ==  1 && callerUGI != null &&
@@ -476,10 +471,6 @@ public class TestApplicationHistoryManagerOnTimelineStore {
       entityInfo.put(ApplicationMetricsConstants.APP_VIEW_ACLS_ENTITY_INFO,
           "user2");
     }
-    Set<String> appTags = new HashSet<String>();
-    appTags.add("Test_APP_TAGS_1");
-    appTags.add("Test_APP_TAGS_2");
-    entityInfo.put(ApplicationMetricsConstants.APP_TAGS_INFO, appTags);
     entity.setOtherInfo(entityInfo);
     TimelineEvent tEvent = new TimelineEvent();
     tEvent.setEventType(ApplicationMetricsConstants.CREATED_EVENT_TYPE);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/metrics/ApplicationMetricsConstants.java

@@ -73,5 +73,4 @@ public class ApplicationMetricsConstants {
   public static final String LATEST_APP_ATTEMPT_EVENT_INFO =
       "YARN_APPLICATION_LATEST_APP_ATTEMPT";
 
-  public static final String APP_TAGS_INFO = "YARN_APPLICATION_TAGS";
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/ApplicationCreatedEvent.java

@@ -18,8 +18,6 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.metrics;
 
-import java.util.Set;
-
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 
 public class ApplicationCreatedEvent extends
@@ -31,7 +29,6 @@ public class ApplicationCreatedEvent extends
   private String user;
   private String queue;
   private long submittedTime;
-  private Set<String> appTags;
 
   public ApplicationCreatedEvent(ApplicationId appId,
       String name,
@@ -39,8 +36,7 @@ public class ApplicationCreatedEvent extends
       String user,
       String queue,
       long submittedTime,
-      long createdTime,
+      long createdTime) {
-      Set<String> appTags) {
     super(SystemMetricsEventType.APP_CREATED, createdTime);
     this.appId = appId;
     this.name = name;
@@ -48,7 +44,6 @@ public class ApplicationCreatedEvent extends
     this.user = user;
     this.queue = queue;
     this.submittedTime = submittedTime;
-    this.appTags = appTags;
   }
 
   @Override
@@ -80,7 +75,4 @@ public class ApplicationCreatedEvent extends
     return submittedTime;
   }
 
-  public Set<String> getAppTags() {
-    return appTags;
-  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/SystemMetricsPublisher.java

@@ -106,7 +106,7 @@ public class SystemMetricsPublisher extends CompositeService {
               app.getUser(),
               app.getQueue(),
               app.getSubmitTime(),
-              createdTime, app.getApplicationTags()));
+              createdTime));
     }
   }
 
@@ -251,8 +251,6 @@ public class SystemMetricsPublisher extends CompositeService {
         event.getQueue());
     entityInfo.put(ApplicationMetricsConstants.SUBMITTED_TIME_ENTITY_INFO,
         event.getSubmittedTime());
-    entityInfo.put(ApplicationMetricsConstants.APP_TAGS_INFO,
-        event.getAppTags());
     entity.setOtherInfo(entityInfo);
     TimelineEvent tEvent = new TimelineEvent();
     tEvent.setEventType(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java

@@ -301,7 +301,7 @@ public abstract class MockAsm extends MockApps {
             getName(), null, 0, null, null, getDiagnostics().toString(), 
             getTrackingUrl(), getStartTime(), getFinishTime(), 
             getFinalApplicationStatus(), usageReport , null, getProgress(),
-            type, null, null);
+            type, null);
         return report;
       }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/metrics/TestSystemMetricsPublisher.java

@@ -21,11 +21,7 @@ package org.apache.hadoop.yarn.server.resourcemanager.metrics;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-import java.util.Collection;
 import java.util.EnumSet;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
 
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -147,8 +143,6 @@ public class TestSystemMetricsPublisher {
       Assert.assertEquals(app.getSubmitTime(),
           entity.getOtherInfo().get(
               ApplicationMetricsConstants.SUBMITTED_TIME_ENTITY_INFO));
-      Assert.assertTrue(verifyAppTags(app.getApplicationTags(),
-          entity.getOtherInfo()));
       if (i == 1) {
         Assert.assertEquals("uers1,user2",
             entity.getOtherInfo().get(
@@ -358,10 +352,6 @@ public class TestSystemMetricsPublisher {
         FinalApplicationStatus.UNDEFINED);
     when(app.getRMAppMetrics()).thenReturn(
         new RMAppMetrics(null, 0, 0, Integer.MAX_VALUE, Long.MAX_VALUE));
-    Set<String> appTags = new HashSet<String>();
-    appTags.add("test");
-    appTags.add("tags");
-    when(app.getApplicationTags()).thenReturn(appTags);
     return app;
   }
 
@@ -402,31 +392,4 @@ public class TestSystemMetricsPublisher {
     return container;
   }
 
-  private static boolean verifyAppTags(Set<String> appTags,
-      Map<String, Object> entityInfo) {
-    if (!entityInfo.containsKey(ApplicationMetricsConstants.APP_TAGS_INFO)) {
-      return false;
-    }
-    Object obj = entityInfo.get(ApplicationMetricsConstants.APP_TAGS_INFO);
-    if (obj instanceof Collection<?>) {
-      Collection<?> collection = (Collection<?>) obj;
-      if (collection.size() != appTags.size()) {
-        return false;
-      }
-      for (String appTag : appTags) {
-        boolean match = false;
-        for (Object o : collection) {
-          if (o.toString().equals(appTag)) {
-            match = true;
-            break;
-          }
-        }
-        if (!match) {
-          return false;
-        }
-      }
-      return true;
-    }
-    return false;
-  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/TestRMWebApp.java

@@ -253,7 +253,7 @@ public class TestRMWebApp {
               app.getStartTime(), app.getFinishTime(),
               app.getFinalApplicationStatus(),
               (ApplicationResourceUsageReport) null, app.getTrackingUrl(),
-              app.getProgress(), app.getApplicationType(), (Token) null, null);
+              app.getProgress(), app.getApplicationType(), (Token) null);
       appReports.add(appReport);
     }
     GetApplicationsResponse response = mock(GetApplicationsResponse.class);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/TimelineServer.md

@@ -1125,27 +1125,7 @@ Response Body:
           "submittedTime":1430424769395,
           "startedTime":1430424769395,
           "finishedTime":1430424776594,
-          "elapsedTime":7199},
+          "elapsedTime":7199
-          {
-          "appId":"application_1430424020775_0001",
-          "currentAppAttemptId":"appattempt_1430424020775_0001_000001",
-          "user":"zshen",
-          "name":"QuasiMonteCarlo",
-          "queue":"default",
-          "type":"MAPREDUCE",
-          "host":"localhost",
-          "rpcPort":56264,
-          "appState":"FINISHED",
-          "progress":100.0,
-          "diagnosticsInfo":"",
-          "originalTrackingUrl":"http://d-69-91-129-173.dhcp4.washington.edu:19888/jobhistory/job/job_1430424020775_0001",
-          "trackingUrl":"http://d-69-91-129-173.dhcp4.washington.edu:8088/proxy/application_1430424020775_0001/",
-          "finalAppStatus":"SUCCEEDED",
-          "submittedTime":1430424053809,
-          "startedTime":1430424072153,
-          "finishedTime":1430424776594,
-          "elapsedTime":18344,
-          "applicationTags":"mrapplication,ta-example"
           }
       ]
     }
@@ -1247,7 +1227,6 @@ Response Body:
         <startedTime>1430424053809</startedTime>
         <finishedTime>1430424072153</finishedTime>
         <elapsedTime>18344</elapsedTime>
-        <applicationTags>mrapplication,ta-example</applicationTags>
       </app>
     </apps>
 
@@ -1296,8 +1275,7 @@ None
 | `allocatedVCores` | int | The sum of virtual cores allocated to the application's running containers |
 | `currentAppAttemptId` | string | The latest application attempt ID |
 | `host` | string | The host of the ApplicationMaster |
-| `rpcPort` | int | The RPC port of the ApplicationMaster; zero if no IPC service declared |
+| `rpcPort` | int | The RPC port of the ApplicationMaster; zero if no IPC service declared. |
-| `applicationTags` | string | The application tags. |
 
 ### Response Examples:
 
@@ -1333,8 +1311,7 @@ Response Body:
       "submittedTime": 1430424053809,
       "startedTime": 1430424053809,
       "finishedTime": 1430424072153,
-      "elapsedTime": 18344,
+      "elapsedTime": 18344
-      "applicationTags": mrapplication,tag-example
     }
 
 #### XML response
@@ -1372,7 +1349,6 @@ Response Body:
        <startedTime>1430424053809</startedTime>
        <finishedTime>1430424072153</finishedTime>
        <elapsedTime>18344</elapsedTime>
-       <applicationTags>mrapplication,ta-example</applicationTags>
      </app>
 
 ## <a name="REST_API_APPLICATION_ATTEMPT_LIST"></a>Application Attempt List