YARN-8270 Adding JMX Metrics for Timeline Collector and Reader. Contributed by Sushil Ks.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/collector/TimelineCollectorWebService.java

@@ -41,6 +41,7 @@
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.http.JettyUtils;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.util.Time;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.timelineservice.ApplicationAttemptEntity;
 import org.apache.hadoop.yarn.api.records.timelineservice.ApplicationEntity;
@@ -54,6 +55,7 @@
 import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
 import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType;
 import org.apache.hadoop.yarn.api.records.timelineservice.UserEntity;
+import org.apache.hadoop.yarn.server.timelineservice.metrics.PerNodeAggTimelineCollectorMetrics;
 import org.apache.hadoop.yarn.webapp.ForbiddenException;
 import org.apache.hadoop.yarn.webapp.NotFoundException;
 
@@ -78,6 +80,8 @@ public class TimelineCollectorWebService {
       LoggerFactory.getLogger(TimelineCollectorWebService.class);
 
   private @Context ServletContext context;
+  private static final PerNodeAggTimelineCollectorMetrics METRICS =
+      PerNodeAggTimelineCollectorMetrics.getInstance();
 
   /**
    * Gives information about timeline collector.
@@ -152,12 +156,15 @@ public Response putEntities(
       TimelineEntities entities) {
     init(res);
     UserGroupInformation callerUgi = getUser(req);
+    boolean isAsync = async != null && async.trim().equalsIgnoreCase("true");
     if (callerUgi == null) {
       String msg = "The owner of the posted timeline entities is not set";
       LOG.error(msg);
       throw new ForbiddenException(msg);
     }
 
+    long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     try {
       ApplicationId appID = parseApplicationId(appId);
       if (appID == null) {
@@ -172,7 +179,6 @@ public Response putEntities(
         throw new NotFoundException("Application: "+ appId + " is not found");
       }
 
-      boolean isAsync = async != null && async.trim().equalsIgnoreCase("true");
       if (isAsync) {
         collector.putEntitiesAsync(processTimelineEntities(entities, appId,
             Boolean.valueOf(isSubAppEntities)), callerUgi);
@@ -181,6 +187,7 @@ public Response putEntities(
             Boolean.valueOf(isSubAppEntities)), callerUgi);
       }
 
+      succeeded = true;
       return Response.ok().build();
     } catch (NotFoundException | ForbiddenException e) {
       throw new WebApplicationException(e,
@@ -189,6 +196,13 @@ public Response putEntities(
       LOG.error("Error putting entities", e);
       throw new WebApplicationException(e,
           Response.Status.INTERNAL_SERVER_ERROR);
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      if (isAsync) {
+        METRICS.addAsyncPutEntitiesLatency(latency, succeeded);
+      } else {
+        METRICS.addPutEntitiesLatency(latency, succeeded);
+      }
     }
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/metrics/PerNodeAggTimelineCollectorMetrics.java

@@ -0,0 +1,117 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.timelineservice.metrics;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.apache.hadoop.metrics2.MetricsInfo;
+import org.apache.hadoop.metrics2.annotation.Metric;
+import org.apache.hadoop.metrics2.annotation.Metrics;
+import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
+import org.apache.hadoop.metrics2.lib.MutableQuantiles;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import static org.apache.hadoop.metrics2.lib.Interns.info;
+
+/**
+ * Metrics class for TimelineCollectorWebService
+ * running on each NM.
+ */
+@Metrics(about = "Aggregated metrics of TimelineCollector's running on each NM",
+    context = "timelineservice")
+final public class PerNodeAggTimelineCollectorMetrics {
+
+  private static final MetricsInfo METRICS_INFO =
+      info("PerNodeAggTimelineCollectorMetrics",
+      "Aggregated Metrics for TimelineCollector's running on each NM");
+  private static AtomicBoolean isInitialized = new AtomicBoolean(false);
+  private static PerNodeAggTimelineCollectorMetrics
+      instance = null;
+
+  @Metric(about = "PUT entities failure latency", valueName = "latency")
+  private MutableQuantiles putEntitiesFailureLatency;
+  @Metric(about = "PUT entities success latency", valueName = "latency")
+  private MutableQuantiles putEntitiesSuccessLatency;
+
+  @Metric(about = "async PUT entities failure latency", valueName = "latency")
+  private MutableQuantiles asyncPutEntitiesFailureLatency;
+  @Metric(about = "async PUT entities success latency", valueName = "latency")
+  private MutableQuantiles asyncPutEntitiesSuccessLatency;
+
+  private PerNodeAggTimelineCollectorMetrics() {
+  }
+
+  public static PerNodeAggTimelineCollectorMetrics getInstance() {
+    if (!isInitialized.get()) {
+      synchronized (PerNodeAggTimelineCollectorMetrics.class) {
+        if (instance == null) {
+          instance =
+              DefaultMetricsSystem.initialize("TimelineService").register(
+                  METRICS_INFO.name(), METRICS_INFO.description(),
+                  new PerNodeAggTimelineCollectorMetrics());
+          isInitialized.set(true);
+        }
+      }
+    }
+    return instance;
+  }
+
+  public synchronized static void destroy() {
+    isInitialized.set(false);
+    instance = null;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getPutEntitiesSuccessLatency() {
+    return putEntitiesSuccessLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getPutEntitiesFailureLatency() {
+    return putEntitiesFailureLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getAsyncPutEntitiesSuccessLatency() {
+    return asyncPutEntitiesSuccessLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getAsyncPutEntitiesFailureLatency() {
+    return asyncPutEntitiesFailureLatency;
+  }
+
+  public void addPutEntitiesLatency(
+      long durationMs, boolean succeeded) {
+    if (succeeded) {
+      putEntitiesSuccessLatency.add(durationMs);
+    } else {
+      putEntitiesFailureLatency.add(durationMs);
+    }
+  }
+
+  public void addAsyncPutEntitiesLatency(
+      long durationMs, boolean succeeded) {
+    if (succeeded) {
+      asyncPutEntitiesSuccessLatency.add(durationMs);
+    } else {
+      asyncPutEntitiesFailureLatency.add(durationMs);
+    }
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/metrics/TimelineReaderMetrics.java

@@ -0,0 +1,113 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.timelineservice.metrics;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.apache.hadoop.metrics2.MetricsInfo;
+import org.apache.hadoop.metrics2.annotation.Metric;
+import org.apache.hadoop.metrics2.annotation.Metrics;
+import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
+import org.apache.hadoop.metrics2.lib.MutableQuantiles;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import static org.apache.hadoop.metrics2.lib.Interns.info;
+
+/**
+ * Metrics class for TimelineReader.
+ */
+@Metrics(about = "Metrics for timeline reader", context = "timelineservice")
+final public class TimelineReaderMetrics {
+
+  private final static MetricsInfo METRICS_INFO = info("TimelineReaderMetrics",
+      "Metrics for TimelineReader");
+  private static AtomicBoolean isInitialized = new AtomicBoolean(false);
+  private static TimelineReaderMetrics instance = null;
+
+  @Metric(about = "GET entities failure latency", valueName = "latency")
+  private MutableQuantiles getEntitiesFailureLatency;
+  @Metric(about = "GET entities success latency", valueName = "latency")
+  private MutableQuantiles getEntitiesSuccessLatency;
+
+  @Metric(about = "GET entity types failure latency", valueName = "latency")
+  private MutableQuantiles getEntityTypesFailureLatency;
+  @Metric(about = "GET entity types success latency", valueName = "latency")
+  private MutableQuantiles getEntityTypesSuccessLatency;
+
+  private TimelineReaderMetrics() {
+  }
+
+  public static TimelineReaderMetrics getInstance() {
+    if (!isInitialized.get()) {
+      synchronized (TimelineReaderMetrics.class) {
+        if (instance == null) {
+          instance =
+              DefaultMetricsSystem.initialize("TimelineService").register(
+                  METRICS_INFO.name(), METRICS_INFO.description(),
+                  new TimelineReaderMetrics());
+          isInitialized.set(true);
+        }
+      }
+    }
+    return instance;
+  }
+
+  public synchronized static void destroy() {
+    isInitialized.set(false);
+    instance = null;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getGetEntitiesSuccessLatency() {
+    return getEntitiesSuccessLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getGetEntitiesFailureLatency() {
+    return getEntitiesFailureLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getGetEntityTypesSuccessLatency() {
+    return getEntityTypesSuccessLatency;
+  }
+
+  @VisibleForTesting
+  public MutableQuantiles getGetEntityTypesFailureLatency() {
+    return getEntityTypesFailureLatency;
+  }
+
+  public void addGetEntitiesLatency(
+      long durationMs, boolean succeeded) {
+    if (succeeded) {
+      getEntitiesSuccessLatency.add(durationMs);
+    } else {
+      getEntitiesFailureLatency.add(durationMs);
+    }
+  }
+
+  public void addGetEntityTypesLatency(
+      long durationMs, boolean succeeded) {
+    if (succeeded) {
+      getEntityTypesSuccessLatency.add(durationMs);
+    } else {
+      getEntityTypesFailureLatency.add(durationMs);
+    }
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/metrics/package-info.java

@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Package org.apache.hadoop.server.timelineservice contains classes to be used
+ * across timeline reader and collector.
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Unstable
+package org.apache.hadoop.yarn.server.timelineservice.metrics;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/reader/TimelineReaderWebServices.java

@@ -52,6 +52,7 @@
 import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
 import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.hadoop.yarn.server.timelineservice.metrics.TimelineReaderMetrics;
 import org.apache.hadoop.yarn.server.timelineservice.storage.TimelineReader.Field;
 import org.apache.hadoop.yarn.util.timeline.TimelineUtils;
 import org.apache.hadoop.yarn.webapp.BadRequestException;
@@ -77,6 +78,8 @@ public class TimelineReaderWebServices {
   private static final String QUERY_STRING_SEP = "?";
   private static final String RANGE_DELIMITER = "-";
   private static final String DATE_PATTERN = "yyyyMMdd";
+  private static final TimelineReaderMetrics METRICS =
+      TimelineReaderMetrics.getInstance();
 
   @VisibleForTesting
   static final ThreadLocal<DateFormat> DATE_FORMAT =
@@ -323,6 +326,7 @@ public Set<TimelineEntity> getEntities(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -343,16 +347,19 @@ public Set<TimelineEntity> getEntities(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForGenericEntities(entities, callerUGI, entityType);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit or flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -603,6 +610,7 @@ public Set<TimelineEntity> getEntities(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -620,16 +628,19 @@ public Set<TimelineEntity> getEntities(
                   fields, metricsLimit, metricsTimeStart, metricsTimeEnd));
 
       checkAccessForGenericEntities(entities, callerUGI, entityType);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit or flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -697,6 +708,7 @@ public TimelineEntity getEntity(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -711,18 +723,21 @@ public TimelineEntity getEntity(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForGenericEntity(entity, callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but entity not found" + " (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("Timeline entity with uid: " + uId +
           "is not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -889,6 +904,7 @@ public TimelineEntity getEntity(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -901,18 +917,21 @@ public TimelineEntity getEntity(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForGenericEntity(entity, callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but entity not found" + " (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("Timeline entity {id: " + entityId +
           ", type: " + entityType + " } is not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -955,6 +974,7 @@ public TimelineEntity getFlowRun(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -970,17 +990,20 @@ public TimelineEntity getFlowRun(
       entity = timelineReaderManager.getEntity(context,
           TimelineReaderWebServicesUtils.createTimelineDataToRetrieve(
           null, metricsToRetrieve, null, null, null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but flowrun not found (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("Flowrun with uid: " + uId + "is not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -1069,6 +1092,7 @@ public TimelineEntity getFlowRun(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -1083,20 +1107,23 @@ public TimelineEntity getFlowRun(
           TimelineReaderWebServicesUtils
               .createTimelineDataToRetrieve(null, metricsToRetrieve, null, null,
                   null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but flowrun not found (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("Flow run {flow name: " +
           TimelineReaderWebServicesUtils.parseStr(flowName) + ", run id: " +
           TimelineReaderWebServicesUtils.parseLongStr(flowRunId) +
           " } is not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -1161,6 +1188,7 @@ public Set<TimelineEntity> getFlowRuns(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -1179,16 +1207,19 @@ public Set<TimelineEntity> getFlowRuns(
               null, null, null, fromId),
           TimelineReaderWebServicesUtils.createTimelineDataToRetrieve(
           null, metricsToRetrieve, fields, null, null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit or fromId");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -1316,6 +1347,7 @@ public Set<TimelineEntity> getFlowRuns(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -1335,16 +1367,19 @@ public Set<TimelineEntity> getFlowRuns(
           TimelineReaderWebServicesUtils
               .createTimelineDataToRetrieve(null, metricsToRetrieve, fields,
                   null, null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit or fromId");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -1455,6 +1490,7 @@ public Set<TimelineEntity> getFlows(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -1470,18 +1506,21 @@ public Set<TimelineEntity> getFlows(
               TimelineEntityType.YARN_FLOW_ACTIVITY.toString(), null, null),
           entityFilters, TimelineReaderWebServicesUtils.
               createTimelineDataToRetrieve(null, null, null, null, null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "limit");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     } else {
       checkAccess(timelineReaderManager, callerUGI, entities,
           FlowActivityEntity.USER_INFO_KEY, true);
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -1549,6 +1588,7 @@ public TimelineEntity getApp(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -1564,17 +1604,20 @@ public TimelineEntity getApp(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForAppEntity(entity, callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but app not found" + " (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("App with uid " + uId + " not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -1723,6 +1766,7 @@ public TimelineEntity getApp(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     TimelineEntity entity = null;
@@ -1735,17 +1779,20 @@ public TimelineEntity getApp(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForAppEntity(entity, callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entity == null) {
       LOG.info("Processed URL " + url + " but app not found" + " (Took " +
-          (endTime - startTime) + " ms.)");
+          (Time.monotonicNow() - startTime) + " ms.)");
       throw new NotFoundException("App " + appId + " not found");
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entity;
   }
 
@@ -1856,6 +1903,7 @@ public Set<TimelineEntity> getFlowRunApps(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -1876,16 +1924,19 @@ public Set<TimelineEntity> getFlowRunApps(
           TimelineReaderWebServicesUtils.createTimelineDataToRetrieve(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit or flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -3262,6 +3313,7 @@ public Set<String> getEntityTypes(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<String> results = null;
@@ -3270,12 +3322,15 @@ public Set<String> getEntityTypes(
           TimelineReaderWebServicesUtils.createTimelineReaderContext(
           clusterId, userId, flowName, flowRunId, appId,
               null, null, null));
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "flowrunid");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntityTypesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return results;
   }
 
@@ -3343,6 +3398,7 @@ public Set<TimelineEntity> getSubAppEntities(
     LOG.info("Received URL " + url + " from user " +
         TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -3359,16 +3415,19 @@ public Set<TimelineEntity> getSubAppEntities(
           confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
           metricsTimeStart, metricsTimeEnd));
       checkAccessForSubAppEntities(entities,callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime,
           "createdTime start/end or limit");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info("Processed URL " + url +
+          " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info("Processed URL " + url +
-        " (Took " + (endTime - startTime) + " ms.)");
     return entities;
   }
 
@@ -3414,6 +3473,7 @@ public Set<TimelineEntity> getSubAppEntities(@Context HttpServletRequest req,
     LOG.info("Received URL " + url + " from user "
         + TimelineReaderWebServicesUtils.getUserName(callerUGI));
     long startTime = Time.monotonicNow();
+    boolean succeeded = false;
     init(res);
     TimelineReaderManager timelineReaderManager = getTimelineReaderManager();
     Set<TimelineEntity> entities = null;
@@ -3427,15 +3487,19 @@ public Set<TimelineEntity> getSubAppEntities(@Context HttpServletRequest req,
               confsToRetrieve, metricsToRetrieve, fields, metricsLimit,
               metricsTimeStart, metricsTimeEnd));
       checkAccessForSubAppEntities(entities,callerUGI);
+      succeeded = true;
     } catch (Exception e) {
       handleException(e, url, startTime, "");
+    } finally {
+      long latency = Time.monotonicNow() - startTime;
+      METRICS.addGetEntitiesLatency(latency, succeeded);
+      LOG.info(
+          "Processed URL " + url + " (Took " + latency + " ms.)");
     }
-    long endTime = Time.monotonicNow();
     if (entities == null) {
       entities = Collections.emptySet();
     }
-    LOG.info(
-        "Processed URL " + url + " (Took " + (endTime - startTime) + " ms.)");
+
     return entities;
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/test/java/org/apache/hadoop/yarn/server/timelineservice/collector/TestPerNodeAggTimelineCollectorMetrics.java

@@ -0,0 +1,56 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.timelineservice.collector;
+
+import org.apache.hadoop.yarn.server.timelineservice.metrics.PerNodeAggTimelineCollectorMetrics;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Test PerNodeAggTimelineCollectorMetrics.
+ */
+public class TestPerNodeAggTimelineCollectorMetrics {
+
+  private PerNodeAggTimelineCollectorMetrics metrics;
+
+  @Test
+  public void testTimelineCollectorMetrics() {
+    Assert.assertNotNull(metrics);
+    Assert.assertEquals(10,
+        metrics.getPutEntitiesSuccessLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getPutEntitiesFailureLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getAsyncPutEntitiesSuccessLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getAsyncPutEntitiesFailureLatency().getInterval());
+  }
+
+  @Before
+  public void setup() {
+    metrics = PerNodeAggTimelineCollectorMetrics.getInstance();
+  }
+
+  @After
+  public void tearDown() {
+    PerNodeAggTimelineCollectorMetrics.destroy();
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/test/java/org/apache/hadoop/yarn/server/timelineservice/reader/TestTimelineReaderMetrics.java

@@ -0,0 +1,56 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.timelineservice.reader;
+
+import org.apache.hadoop.yarn.server.timelineservice.metrics.TimelineReaderMetrics;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Test TimelineReaderMetrics.
+ */
+public class TestTimelineReaderMetrics {
+
+  private TimelineReaderMetrics metrics;
+
+  @Test
+  public void testTimelineReaderMetrics() {
+    Assert.assertNotNull(metrics);
+    Assert.assertEquals(10,
+        metrics.getGetEntitiesSuccessLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getGetEntitiesFailureLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getGetEntityTypesSuccessLatency().getInterval());
+    Assert.assertEquals(10,
+        metrics.getGetEntityTypesFailureLatency().getInterval());
+  }
+
+  @Before
+  public void setup() {
+    metrics = TimelineReaderMetrics.getInstance();
+  }
+
+  @After
+  public void tearDown() {
+    TimelineReaderMetrics.destroy();
+  }
+}