| /** |
| * 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.ipc.Server; |
| 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.MetricsIntValue; |
| import org.apache.hadoop.metrics.util.MetricsRegistry; |
| import org.apache.hadoop.metrics.util.MetricsTimeVaryingInt; |
| import org.apache.hadoop.metrics.util.MetricsTimeVaryingLong; |
| import org.apache.hadoop.metrics.util.MetricsTimeVaryingRate; |
| |
| /** |
| * |
| * This class is for maintaining the various RPC statistics |
| * and publishing them through the metrics interfaces. |
| * This also registers the JMX MBean for RPC. |
| * <p> |
| * This class has a number of metrics variables that are publicly accessible; |
| * these variables (objects) have methods to update their values; |
| * for example: |
| * <p> {@link #rpcQueueTime}.inc(time) |
| * |
| */ |
| @InterfaceAudience.Private |
| public class RpcMetrics implements Updater { |
| private final MetricsRegistry registry = new MetricsRegistry(); |
| private final MetricsRecord metricsRecord; |
| private final Server myServer; |
| private static final Log LOG = LogFactory.getLog(RpcMetrics.class); |
| RpcActivityMBean rpcMBean; |
| |
| public RpcMetrics(final String hostName, final String port, |
| final Server server) { |
| myServer = server; |
| MetricsContext context = MetricsUtil.getContext("rpc"); |
| metricsRecord = MetricsUtil.createRecord(context, "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 RpcActivityMBean(registry, hostName, port); |
| } |
| |
| |
| /** |
| * The metrics variables are public: |
| * - they can be set directly by calling their set/inc methods |
| * -they can also be read directly - e.g. JMX does this. |
| */ |
| |
| public final MetricsTimeVaryingLong receivedBytes = |
| new MetricsTimeVaryingLong("ReceivedBytes", registry); |
| public final MetricsTimeVaryingLong sentBytes = |
| new MetricsTimeVaryingLong("SentBytes", registry); |
| public final MetricsTimeVaryingRate rpcQueueTime = |
| new MetricsTimeVaryingRate("RpcQueueTime", registry); |
| public MetricsTimeVaryingRate rpcProcessingTime = |
| new MetricsTimeVaryingRate("RpcProcessingTime", registry); |
| public final MetricsIntValue numOpenConnections = |
| new MetricsIntValue("NumOpenConnections", registry); |
| public final MetricsIntValue callQueueLen = |
| new MetricsIntValue("callQueueLen", registry); |
| public final MetricsTimeVaryingInt authenticationFailures = |
| new MetricsTimeVaryingInt("rpcAuthenticationFailures", registry); |
| public final MetricsTimeVaryingInt authenticationSuccesses = |
| new MetricsTimeVaryingInt("rpcAuthenticationSuccesses", registry); |
| public final MetricsTimeVaryingInt authorizationFailures = |
| new MetricsTimeVaryingInt("rpcAuthorizationFailures", registry); |
| public final MetricsTimeVaryingInt authorizationSuccesses = |
| new MetricsTimeVaryingInt("rpcAuthorizationSuccesses", registry); |
| /** |
| * Push the metrics to the monitoring subsystem on doUpdate() call. |
| */ |
| public void doUpdates(final MetricsContext context) { |
| |
| synchronized (this) { |
| // ToFix - fix server to use the following two metrics directly so |
| // the metrics do not have be copied here. |
| numOpenConnections.set(myServer.getNumOpenConnections()); |
| callQueueLen.set(myServer.getCallQueueLen()); |
| for (MetricsBase m : registry.getMetricsList()) { |
| m.pushMetric(metricsRecord); |
| } |
| } |
| metricsRecord.update(); |
| } |
| |
| public void shutdown() { |
| if (rpcMBean != null) |
| rpcMBean.shutdown(); |
| } |
| } |