| /** |
| * 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.metrics2.MetricsBuilder; |
| import org.apache.hadoop.metrics2.MetricsSource; |
| import org.apache.hadoop.metrics2.lib.MetricMutableCounterInt; |
| import org.apache.hadoop.metrics2.lib.MetricMutableGaugeInt; |
| import org.apache.hadoop.metrics2.lib.MetricsRegistry; |
| import org.apache.hadoop.metrics2.source.JvmMetricsSource; |
| |
| /** |
| * Instrumentation for metrics v2 |
| */ |
| @SuppressWarnings("deprecation") |
| public class TaskTrackerMetricsSource extends TaskTrackerInstrumentation |
| implements MetricsSource { |
| |
| final MetricsRegistry registry = new MetricsRegistry("tasktracker"); |
| final MetricMutableGaugeInt mapsRunning = |
| registry.newGauge("maps_running", "", 0); |
| final MetricMutableGaugeInt redsRunning = |
| registry.newGauge("reduces_running", "", 0); |
| final MetricMutableGaugeInt mapSlots = |
| registry.newGauge("mapTaskSlots", "", 0); |
| final MetricMutableGaugeInt redSlots = |
| registry.newGauge("reduceTaskSlots", "", 0); |
| final MetricMutableCounterInt completedTasks = |
| registry.newCounter("tasks_completed", "", 0); |
| final MetricMutableCounterInt timedoutTasks = |
| registry.newCounter("tasks_failed_timeout", "", 0); |
| final MetricMutableCounterInt pingFailedTasks = |
| registry.newCounter("tasks_failed_ping", "", 0); |
| |
| public TaskTrackerMetricsSource(TaskTracker tt) { |
| super(tt); |
| String sessionId = tt.getJobConf().getSessionId(); |
| JvmMetricsSource.create("TaskTracker", sessionId); |
| registry.setContext("mapred").tag("sessionId", "", sessionId); |
| } |
| |
| @Override |
| public void getMetrics(MetricsBuilder builder, boolean all) { |
| mapsRunning.set(tt.mapTotal); |
| redsRunning.set(tt.reduceTotal); |
| mapSlots.set(tt.getMaxCurrentMapTasks()); |
| redSlots.set(tt.getMaxCurrentReduceTasks()); |
| registry.snapshot(builder.addRecord(registry.name()), all); |
| } |
| |
| @Override |
| public void completeTask(TaskAttemptID t) { |
| completedTasks.incr(); |
| } |
| |
| @Override |
| public void timedoutTask(TaskAttemptID t) { |
| timedoutTasks.incr(); |
| } |
| |
| @Override |
| public void taskFailedPing(TaskAttemptID t) { |
| pingFailedTasks.incr(); |
| } |
| |
| } |