| /** |
| * 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.ipc.metrics; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| 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.util.MetricsBase; |
| import org.apache.hadoop.metrics.util.MetricsRegistry; |
| import org.apache.hadoop.metrics.util.MetricsTimeVaryingRate; |
| |
| /** |
| * |
| * This class is for maintaining the various RPC method related statistics |
| * and publishing them through the metrics interfaces. |
| * This also registers the JMX MBean for RPC. |
| */ |
| @InterfaceAudience.Private |
| public class RpcDetailedMetrics implements Updater { |
| public final MetricsRegistry registry = new MetricsRegistry(); |
| private final MetricsRecord metricsRecord; |
| private static final Log LOG = LogFactory.getLog(RpcDetailedMetrics.class); |
| RpcDetailedActivityMBean rpcMBean; |
| |
| /** |
| * Statically added metrics to expose at least one metrics, without |
| * which other dynamically added metrics are not exposed over JMX. |
| */ |
| final MetricsTimeVaryingRate getProtocolVersion = |
| new MetricsTimeVaryingRate("getProtocolVersion", registry); |
| |
| public RpcDetailedMetrics(final String hostName, final String port) { |
| MetricsContext context = MetricsUtil.getContext("rpc"); |
| metricsRecord = MetricsUtil.createRecord(context, "detailed-metrics"); |
| |
| metricsRecord.setTag("port", port); |
| |
| LOG.info("Initializing RPC Metrics with hostName=" |
| + hostName + ", port=" + port); |
| |
| context.registerUpdater(this); |
| |
| // Need to clean up the interface to RpcMgt - don't need both metrics and server params |
| rpcMBean = new RpcDetailedActivityMBean(registry, hostName, port); |
| } |
| |
| |
| /** |
| * Push the metrics to the monitoring subsystem on doUpdate() call. |
| */ |
| public void doUpdates(final MetricsContext context) { |
| |
| synchronized (this) { |
| for (MetricsBase m : registry.getMetricsList()) { |
| m.pushMetric(metricsRecord); |
| } |
| } |
| metricsRecord.update(); |
| } |
| |
| public void shutdown() { |
| if (rpcMBean != null) |
| rpcMBean.shutdown(); |
| } |
| } |