| /** |
| * 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.resourcemanager.recovery; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.metrics2.MetricsCollector; |
| import org.apache.hadoop.metrics2.MetricsInfo; |
| import org.apache.hadoop.metrics2.MetricsSource; |
| import org.apache.hadoop.metrics2.MetricsSystem; |
| 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.MetricsRegistry; |
| |
| import static org.apache.hadoop.metrics2.lib.Interns.info; |
| import org.apache.hadoop.metrics2.lib.MutableRate; |
| |
| /** |
| * Class to capture the performance metrics of ZKRMStateStore. |
| * This should be a singleton. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| @Metrics(context="ZKRMStateStore-op-durations") |
| public final class ZKRMStateStoreOpDurations implements MetricsSource { |
| |
| @Metric("Duration for a load state call") |
| MutableRate loadStateCall; |
| |
| @Metric("Duration for a store application state call") |
| MutableRate storeApplicationStateCall; |
| |
| @Metric("Duration for a update application state call") |
| MutableRate updateApplicationStateCall; |
| |
| @Metric("Duration to handle a remove application state call") |
| MutableRate removeApplicationStateCall; |
| |
| protected static final MetricsInfo RECORD_INFO = |
| info("ZKRMStateStoreOpDurations", "Durations of ZKRMStateStore calls"); |
| |
| private final MetricsRegistry registry; |
| |
| private static final ZKRMStateStoreOpDurations INSTANCE |
| = new ZKRMStateStoreOpDurations(); |
| |
| public static ZKRMStateStoreOpDurations getInstance() { |
| return INSTANCE; |
| } |
| |
| private ZKRMStateStoreOpDurations() { |
| registry = new MetricsRegistry(RECORD_INFO); |
| registry.tag(RECORD_INFO, "ZKRMStateStoreOpDurations"); |
| |
| MetricsSystem ms = DefaultMetricsSystem.instance(); |
| if (ms != null) { |
| ms.register(RECORD_INFO.name(), RECORD_INFO.description(), this); |
| } |
| } |
| |
| @Override |
| public synchronized void getMetrics(MetricsCollector collector, boolean all) { |
| registry.snapshot(collector.addRecord(registry.info()), all); |
| } |
| |
| public void addLoadStateCallDuration(long value) { |
| loadStateCall.add(value); |
| } |
| |
| public void addStoreApplicationStateCallDuration(long value) { |
| storeApplicationStateCall.add(value); |
| } |
| |
| public void addUpdateApplicationStateCallDuration(long value) { |
| updateApplicationStateCall.add(value); |
| } |
| |
| public void addRemoveApplicationStateCallDuration(long value) { |
| removeApplicationStateCall.add(value); |
| } |
| } |