JobTrackerMetricsInst.java
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- /*
- * 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.mapred;
- import org.apache.hadoop.metrics.MetricsContext;
- import org.apache.hadoop.metrics.MetricsRecord;
- import org.apache.hadoop.metrics.MetricsUtil;
- import org.apache.hadoop.metrics.Updater;
- import org.apache.hadoop.metrics.jvm.JvmMetrics;
- import org.apache.hadoop.metrics.util.MetricsRegistry;
- import org.apache.hadoop.metrics.util.MetricsTimeVaryingInt;
- class JobTrackerMetricsInst extends JobTrackerInstrumentation implements Updater {
- private final MetricsRecord metricsRecord;
- private int numMapTasksLaunched = 0;
- private int numMapTasksCompleted = 0;
- private int numMapTasksFailed = 0;
- private int numReduceTasksLaunched = 0;
- private int numReduceTasksCompleted = 0;
- private int numReduceTasksFailed = 0;
- private int numJobsSubmitted = 0;
- private int numJobsCompleted = 0;
- private int numWaitingTasks = 0;
-
- public JobTrackerMetricsInst(JobTracker tracker, JobConf conf) {
- super(tracker, conf);
- String sessionId = conf.getSessionId();
- // Initiate JVM Metrics
- JvmMetrics.init("JobTracker", sessionId);
- // Create a record for map-reduce metrics
- MetricsContext context = MetricsUtil.getContext("mapred");
- metricsRecord = MetricsUtil.createRecord(context, "jobtracker");
- metricsRecord.setTag("sessionId", sessionId);
- context.registerUpdater(this);
- }
-
- /**
- * Since this object is a registered updater, this method will be called
- * periodically, e.g. every 5 seconds.
- */
- public void doUpdates(MetricsContext unused) {
- synchronized (this) {
- metricsRecord.incrMetric("maps_launched", numMapTasksLaunched);
- metricsRecord.incrMetric("maps_completed", numMapTasksCompleted);
- metricsRecord.incrMetric("maps_failed", numMapTasksFailed);
- metricsRecord.incrMetric("reduces_launched", numReduceTasksLaunched);
- metricsRecord.incrMetric("reduces_completed", numReduceTasksCompleted);
- metricsRecord.incrMetric("reduces_failed", numReduceTasksFailed);
- metricsRecord.incrMetric("jobs_submitted", numJobsSubmitted);
- metricsRecord.incrMetric("jobs_completed", numJobsCompleted);
- metricsRecord.incrMetric("waiting_tasks", numWaitingTasks);
- numMapTasksLaunched = 0;
- numMapTasksCompleted = 0;
- numMapTasksFailed = 0;
- numReduceTasksLaunched = 0;
- numReduceTasksCompleted = 0;
- numReduceTasksFailed = 0;
- numWaitingTasks = 0;
- numJobsSubmitted = 0;
- numJobsCompleted = 0;
- }
- metricsRecord.update();
- if (tracker != null) {
- for (JobInProgress jip : tracker.getRunningJobs()) {
- jip.updateMetrics();
- }
- }
- }
- @Override
- public synchronized void launchMap(TaskAttemptID taskAttemptID) {
- ++numMapTasksLaunched;
- decWaiting(taskAttemptID.getJobID(), 1);
- }
- @Override
- public synchronized void completeMap(TaskAttemptID taskAttemptID) {
- ++numMapTasksCompleted;
- }
- @Override
- public synchronized void failedMap(TaskAttemptID taskAttemptID) {
- ++numMapTasksFailed;
- addWaiting(taskAttemptID.getJobID(), 1);
- }
- @Override
- public synchronized void launchReduce(TaskAttemptID taskAttemptID) {
- ++numReduceTasksLaunched;
- decWaiting(taskAttemptID.getJobID(), 1);
- }
- @Override
- public synchronized void completeReduce(TaskAttemptID taskAttemptID) {
- ++numReduceTasksCompleted;
- }
- @Override
- public synchronized void failedReduce(TaskAttemptID taskAttemptID) {
- ++numReduceTasksFailed;
- addWaiting(taskAttemptID.getJobID(), 1);
- }
- @Override
- public synchronized void submitJob(JobConf conf, JobID id) {
- ++numJobsSubmitted;
- }
- @Override
- public synchronized void completeJob(JobConf conf, JobID id) {
- ++numJobsCompleted;
- }
- @Override
- public synchronized void addWaiting(JobID id, int tasks) {
- numWaitingTasks += tasks;
- }
- @Override
- public synchronized void decWaiting(JobID id, int tasks) {
- numWaitingTasks -= tasks;
- }
- }