YARN-3700. Made generic history service load a number of latest applications according to the parameter or the configuration. Contributed by Xuan Gong.

(cherry picked from commit 54504133f41e36eaea6bb06c7b9ddb249468ecd7)
(cherry picked from commit 839f81a6326b2f8b3d5183178382c1551b0bc259)
(cherry picked from commit 058380d9ef35f35e8c624fb8783eac0904c4d1f5)

hadoop-yarn-project/CHANGES.txt

@@ -144,6 +144,9 @@ Release 2.6.1 - UNRELEASED
     YARN-2766. Made ApplicationHistoryManager return a sorted list of apps,
     attempts and containers. (Robert Kanter via zjshen)
 
+    YARN-3700. Made generic history service load a number of latest applications
+    according to the parameter or the configuration. (Xuan Gong via zjshen)
+
 Release 2.6.0 - 2014-11-18
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java

@@ -1285,6 +1285,15 @@ public class YarnConfiguration extends Configuration {
   public static final String DEFAULT_TIMELINE_SERVICE_WEBAPP_HTTPS_ADDRESS =
       "0.0.0.0:" + DEFAULT_TIMELINE_SERVICE_WEBAPP_HTTPS_PORT;
 
+  /**
+   * Defines the max number of applications could be fetched using
+   * REST API or application history protocol and shown in timeline
+   * server web ui.
+   */
+  public static final String APPLICATION_HISTORY_PREFIX_MAX_APPS =
+      APPLICATION_HISTORY_PREFIX + "max-applications";
+  public static final long DEFAULT_APPLICATION_HISTORY_PREFIX_MAX_APPS = 10000;
+
   /** Timeline service store class */
   public static final String TIMELINE_SERVICE_STORE =
       TIMELINE_SERVICE_PREFIX + "store-class";

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/YarnWebParams.java

@@ -33,6 +33,7 @@ public interface YarnWebParams {
   String ENTITY_STRING = "entity.string";
   String APP_OWNER = "app.owner";
   String APP_STATE = "app.state";
+  String APPS_NUM = "apps.num";
   String QUEUE_NAME = "queue.name";
   String NODE_STATE = "node.state";
   String WEB_UI_TYPE = "web.ui.type";

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml

@@ -1268,6 +1268,15 @@
     <value></value>
   </property>
 
+  <property>
+    <description>
+      Defines the max number of applications could be fetched using REST API or
+      application history protocol and shown in timeline server web ui.
+    </description>
+    <name>yarn.timeline-service.generic-application-history.max-applications</name>
+    <value>10000</value>
+  </property>
+
   <property>
     <description>Store class name for timeline store.</description>
     <name>yarn.timeline-service.store-class</name>

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

@@ -178,7 +178,7 @@ public class ApplicationHistoryClientService extends AbstractService implements
           IOException {
     GetApplicationsResponse response =
         GetApplicationsResponse.newInstance(new ArrayList<ApplicationReport>(
-          history.getAllApplications().values()));
+          history.getApplications(request.getLimit()).values()));
     return response;
   }
 

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

@@ -51,16 +51,20 @@ public interface ApplicationHistoryManager {
       IOException;
 
   /**
-   * This method returns all Application {@link ApplicationReport}s
-   * 
+   * This method returns the given number of Application
+   * {@link ApplicationReport}s.
+   *
+   * @param appsNum
+   *
    * @return map of {@link ApplicationId} to {@link ApplicationReport}s.
    * @throws YarnException
    * @throws IOException
    */
   @Public
   @Unstable
-  Map<ApplicationId, ApplicationReport> getAllApplications()
-      throws YarnException, IOException;
+  Map<ApplicationId, ApplicationReport>
+      getApplications(long appsNum) throws YarnException,
+          IOException;
 
   /**
    * Application can have multiple application attempts

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

@@ -98,7 +98,7 @@ public class ApplicationHistoryManagerImpl extends AbstractService implements
   }
 
   @Override
-  public Map<ApplicationId, ApplicationReport> getAllApplications()
+  public Map<ApplicationId, ApplicationReport> getApplications(long appsNum)
       throws IOException {
     Map<ApplicationId, ApplicationHistoryData> histData =
         historyStore.getAllApplications();

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

@@ -47,6 +47,7 @@ import org.apache.hadoop.yarn.api.records.YarnApplicationState;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEntities;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEntity;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEvent;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.ApplicationAttemptNotFoundException;
 import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException;
 import org.apache.hadoop.yarn.exceptions.ContainerNotFoundException;
@@ -73,6 +74,7 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
   private TimelineDataManager timelineDataManager;
   private ApplicationACLsManager aclsManager;
   private String serverHttpAddress;
+  private long maxLoadedApplications;
 
   public ApplicationHistoryManagerOnTimelineStore(
       TimelineDataManager timelineDataManager,
@@ -86,6 +88,9 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
   protected void serviceInit(Configuration conf) throws Exception {
     serverHttpAddress = WebAppUtils.getHttpSchemePrefix(conf) +
         WebAppUtils.getAHSWebAppURLWithoutScheme(conf);
+    maxLoadedApplications =
+        conf.getLong(YarnConfiguration.APPLICATION_HISTORY_PREFIX_MAX_APPS,
+          YarnConfiguration.DEFAULT_APPLICATION_HISTORY_PREFIX_MAX_APPS);
     super.serviceInit(conf);
   }
 
@@ -96,12 +101,12 @@ public class ApplicationHistoryManagerOnTimelineStore extends AbstractService
   }
 
   @Override
-  public Map<ApplicationId, ApplicationReport> getAllApplications()
+  public Map<ApplicationId, ApplicationReport> getApplications(long appsNum)
       throws YarnException, IOException {
     TimelineEntities entities = timelineDataManager.getEntities(
-        ApplicationMetricsConstants.ENTITY_TYPE, null, null, null, null,
-        null, null, Long.MAX_VALUE, EnumSet.allOf(Field.class),
-        UserGroupInformation.getLoginUser());
+        ApplicationMetricsConstants.ENTITY_TYPE, null, null, null, null, null,
+        null, appsNum == Long.MAX_VALUE ? this.maxLoadedApplications : appsNum,
+        EnumSet.allOf(Field.class), UserGroupInformation.getLoginUser());
     Map<ApplicationId, ApplicationReport> apps =
         new LinkedHashMap<ApplicationId, ApplicationReport>();
     if (entities != null && entities.getEntities() != null) {

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

@@ -53,6 +53,7 @@ import org.junit.Test;
 public class TestApplicationHistoryClientService {
 
   private static ApplicationHistoryClientService clientService;
+  private static TimelineDataManager dataManager;
 
   @BeforeClass
   public static void setup() throws Exception {
@@ -60,7 +61,7 @@ public class TestApplicationHistoryClientService {
     TimelineStore store =
         TestApplicationHistoryManagerOnTimelineStore.createStore(2);
     TimelineACLsManager aclsManager = new TimelineACLsManager(conf);
-    TimelineDataManager dataManager =
+    dataManager =
         new TimelineDataManager(store, aclsManager);
     ApplicationACLsManager appAclsManager = new ApplicationACLsManager(conf);
     ApplicationHistoryManagerOnTimelineStore historyManager =
@@ -97,8 +98,27 @@ public class TestApplicationHistoryClientService {
         clientService.getApplications(request);
     List<ApplicationReport> appReport = response.getApplicationList();
     Assert.assertNotNull(appReport);
-    Assert.assertEquals(appId, appReport.get(0).getApplicationId());
-    Assert.assertEquals(appId1, appReport.get(1).getApplicationId());
+    Assert.assertEquals(appId, appReport.get(1).getApplicationId());
+    Assert.assertEquals(appId1, appReport.get(0).getApplicationId());
+
+    // Create a historyManager, and set the max_apps can be loaded
+    // as 1.
+    Configuration conf = new YarnConfiguration();
+    conf.setLong(YarnConfiguration.APPLICATION_HISTORY_PREFIX_MAX_APPS, 1);
+    ApplicationHistoryManagerOnTimelineStore historyManager2 =
+        new ApplicationHistoryManagerOnTimelineStore(dataManager,
+          new ApplicationACLsManager(conf));
+    historyManager2.init(conf);
+    historyManager2.start();
+    @SuppressWarnings("resource")
+    ApplicationHistoryClientService clientService2 =
+        new ApplicationHistoryClientService(historyManager2);
+    response = clientService2.getApplications(request);
+    appReport = response.getApplicationList();
+    Assert.assertNotNull(appReport);
+    Assert.assertTrue(appReport.size() == 1);
+    // Expected to get the appReport for application with appId1
+    Assert.assertEquals(appId1, appReport.get(0).getApplicationId());
   }
 
   @Test

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

@@ -175,8 +175,10 @@ public class TestApplicationHistoryManagerOnTimelineStore {
       Assert.assertEquals("test app type", app.getApplicationType());
       Assert.assertEquals("user1", app.getUser());
       Assert.assertEquals("test queue", app.getQueue());
-      Assert.assertEquals(Integer.MAX_VALUE + 2L, app.getStartTime());
-      Assert.assertEquals(Integer.MAX_VALUE + 3L, app.getFinishTime());
+      Assert.assertEquals(Integer.MAX_VALUE + 2L
+          + app.getApplicationId().getId(), app.getStartTime());
+      Assert.assertEquals(Integer.MAX_VALUE + 3L
+          + +app.getApplicationId().getId(), app.getFinishTime());
       Assert.assertTrue(Math.abs(app.getProgress() - 1.0F) < 0.0001);
       // 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.
@@ -324,7 +326,7 @@ public class TestApplicationHistoryManagerOnTimelineStore {
   @Test
   public void testGetApplications() throws Exception {
     Collection<ApplicationReport> apps =
-        historyManager.getAllApplications().values();
+        historyManager.getApplications(Long.MAX_VALUE).values();
     Assert.assertNotNull(apps);
     Assert.assertEquals(SCALE + 1, apps.size());
   }
@@ -450,12 +452,12 @@ public class TestApplicationHistoryManagerOnTimelineStore {
     entity.setOtherInfo(entityInfo);
     TimelineEvent tEvent = new TimelineEvent();
     tEvent.setEventType(ApplicationMetricsConstants.CREATED_EVENT_TYPE);
-    tEvent.setTimestamp(Integer.MAX_VALUE + 2L);
+    tEvent.setTimestamp(Integer.MAX_VALUE + 2L + appId.getId());
     entity.addEvent(tEvent);
     tEvent = new TimelineEvent();
     tEvent.setEventType(
         ApplicationMetricsConstants.FINISHED_EVENT_TYPE);
-    tEvent.setTimestamp(Integer.MAX_VALUE + 3L);
+    tEvent.setTimestamp(Integer.MAX_VALUE + 3L + appId.getId());
     Map<String, Object> eventInfo = new HashMap<String, Object>();
     eventInfo.put(ApplicationMetricsConstants.DIAGNOSTICS_INFO_EVENT_INFO,
         "test diagnostics info");

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/webapp/AppsBlock.java

@@ -20,6 +20,7 @@ package org.apache.hadoop.yarn.server.webapp;
 
 import static org.apache.hadoop.yarn.util.StringHelper.join;
 import static org.apache.hadoop.yarn.webapp.YarnWebParams.APP_STATE;
+import static org.apache.hadoop.yarn.webapp.YarnWebParams.APPS_NUM;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.C_PROGRESSBAR;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.C_PROGRESSBAR_VALUE;
 
@@ -80,6 +81,11 @@ public class AppsBlock extends HtmlBlock {
     try {
       final GetApplicationsRequest request =
           GetApplicationsRequest.newInstance(reqAppStates);
+      String appsNumStr = $(APPS_NUM);
+      if (appsNumStr != null && !appsNumStr.isEmpty()) {
+        long appsNum = Long.parseLong(appsNumStr);
+        request.setLimit(appsNum);
+      }
       if (callerUGI == null) {
         appReports = appBaseProt.getApplications(request).getApplicationList();
       } else {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/webapp/WebServices.java

@@ -31,6 +31,13 @@ import javax.ws.rs.WebApplicationException;
 
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.AuthorizationException;
+import org.apache.hadoop.yarn.api.ApplicationBaseProtocol;
+import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationAttemptReportRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationAttemptsRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationsRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.GetContainerReportRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.GetContainersRequest;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptReport;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -39,13 +46,6 @@ import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.ContainerReport;
 import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
-import org.apache.hadoop.yarn.api.ApplicationBaseProtocol;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationAttemptReportRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationAttemptsRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationsRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetContainerReportRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetContainersRequest;
 import org.apache.hadoop.yarn.server.webapp.dao.AppAttemptInfo;
 import org.apache.hadoop.yarn.server.webapp.dao.AppAttemptsInfo;
 import org.apache.hadoop.yarn.server.webapp.dao.AppInfo;
@@ -71,13 +71,11 @@ public class WebServices {
       String startedEnd, String finishBegin, String finishEnd,
       Set<String> applicationTypes) {
     UserGroupInformation callerUGI = getUser(req);
-    long num = 0;
-    boolean checkCount = false;
     boolean checkStart = false;
     boolean checkEnd = false;
     boolean checkAppTypes = false;
     boolean checkAppStates = false;
-    long countNum = 0;
+    long countNum = Long.MAX_VALUE;
 
     // set values suitable in case both of begin/end not specified
     long sBegin = 0;
@@ -86,7 +84,6 @@ public class WebServices {
     long fEnd = Long.MAX_VALUE;
 
     if (count != null && !count.isEmpty()) {
-      checkCount = true;
       countNum = Long.parseLong(count);
       if (countNum <= 0) {
         throw new BadRequestException("limit value must be greater then 0");
@@ -147,19 +144,20 @@ public class WebServices {
 
     AppsInfo allApps = new AppsInfo();
     Collection<ApplicationReport> appReports = null;
+    final GetApplicationsRequest request =
+        GetApplicationsRequest.newInstance();
+    request.setLimit(countNum);
     try {
       if (callerUGI == null) {
         // TODO: the request should take the params like what RMWebServices does
         // in YARN-1819.
-        GetApplicationsRequest request = GetApplicationsRequest.newInstance();
         appReports = appBaseProt.getApplications(request).getApplicationList();
       } else {
         appReports = callerUGI.doAs(
             new PrivilegedExceptionAction<Collection<ApplicationReport>> () {
           @Override
           public Collection<ApplicationReport> run() throws Exception {
-            return appBaseProt.getApplications(
-                GetApplicationsRequest.newInstance()).getApplicationList();
+            return appBaseProt.getApplications(request).getApplicationList();
           }
         });
       }
@@ -168,10 +166,6 @@ public class WebServices {
     }
     for (ApplicationReport appReport : appReports) {
 
-      if (checkCount && num == countNum) {
-        break;
-      }
-
       if (checkAppStates
           && !appStates.contains(appReport.getYarnApplicationState().toString()
             .toLowerCase())) {
@@ -211,7 +205,6 @@ public class WebServices {
       AppInfo app = new AppInfo(appReport);
 
       allApps.add(app);
-      num++;
     }
     return allApps;
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/TimelineServer.apt.vm

@@ -103,6 +103,14 @@ YARN Timeline Server
   <value>10</value>
 </property>
 
+<property>
+  <description>The max number of applications could be fetched by using REST API
+   or application history protocol and shown in timeline server web ui. Defaults
+   to `10000`.</description>
+  <name>yarn.timeline-service.generic-application-history.max-applications</name>
+  <value>10000</value>
+</property>
+
 <property>
   <description>Enables cross-origin support (CORS) for web services where
   cross-origin web response headers are needed. For example, javascript making