| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ozone.grpc.metrics; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.MetricsCollector; |
| import org.apache.hadoop.metrics2.MetricsInfo; |
| import org.apache.hadoop.metrics2.MetricsRecordBuilder; |
| import org.apache.hadoop.metrics2.MetricsSource; |
| import org.apache.hadoop.metrics2.annotation.Metric; |
| import org.apache.hadoop.metrics2.annotation.Metrics; |
| import org.apache.hadoop.metrics2.lib.Interns; |
| import org.apache.hadoop.metrics2.lib.MutableCounterLong; |
| import org.apache.hadoop.metrics2.lib.MetricsRegistry; |
| import org.apache.hadoop.metrics2.lib.MutableQuantiles; |
| import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem; |
| import org.apache.hadoop.metrics2.lib.MutableRate; |
| import org.apache.hadoop.ozone.OzoneConfigKeys; |
| import org.apache.hadoop.ozone.OzoneConsts; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Class which maintains metrics related to using GRPC. |
| */ |
| @Metrics(about = "GRPC Metrics", context = OzoneConsts.OZONE) |
| public class GrpcMetrics implements MetricsSource { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(GrpcMetrics.class); |
| |
| private static final MetricsInfo LATEST_REQUEST_TYPE = Interns |
| .info( |
| "LatestRequestType", |
| "Latest type of request for " + |
| "which metrics were captured"); |
| |
| private static final String SOURCE_NAME = |
| GrpcMetrics.class.getSimpleName(); |
| |
| private final MetricsRegistry registry; |
| private final boolean grpcQuantileEnable; |
| private String requestType; |
| |
| public GrpcMetrics(Configuration conf) { |
| this.registry = new MetricsRegistry("grpc"); |
| this.requestType = "NoRequest"; |
| int[] intervals = conf.getInts( |
| OzoneConfigKeys.OZONE_GPRC_METRICS_PERCENTILES_INTERVALS_KEY); |
| grpcQuantileEnable = (intervals.length > 0); |
| if (grpcQuantileEnable) { |
| grpcQueueTimeMillisQuantiles = |
| new MutableQuantiles[intervals.length]; |
| grpcProcessingTimeMillisQuantiles = |
| new MutableQuantiles[intervals.length]; |
| for (int i = 0; i < intervals.length; i++) { |
| int interval = intervals[i]; |
| grpcProcessingTimeMillisQuantiles[i] = registry |
| .newQuantiles("grpcQueueTime" + interval |
| + "s", "grpc queue time in millisecond", "ops", |
| "latency", interval); |
| grpcProcessingTimeMillisQuantiles[i] = registry.newQuantiles( |
| "grpcProcessingTime" + interval + "s", |
| "grpc processing time in millisecond", |
| "ops", "latency", interval); |
| } |
| } |
| LOG.debug("Initialized " + registry); |
| } |
| |
| /** |
| * Create and return GrpcMetrics instance. |
| * @param conf |
| * @return GrpcMetrics |
| */ |
| public static synchronized GrpcMetrics create(Configuration conf) { |
| GrpcMetrics metrics = new GrpcMetrics(conf); |
| return DefaultMetricsSystem.instance().register(SOURCE_NAME, |
| "Metrics for using gRPC", metrics); |
| } |
| |
| /** |
| * Unregister the metrics instance. |
| */ |
| public void unRegister() { |
| DefaultMetricsSystem.instance().unregisterSource(SOURCE_NAME); |
| } |
| |
| @Override |
| public synchronized void getMetrics(MetricsCollector collector, boolean all) { |
| MetricsRecordBuilder recordBuilder = collector.addRecord(SOURCE_NAME); |
| |
| recordBuilder.tag(LATEST_REQUEST_TYPE, requestType); |
| |
| sentBytes.snapshot(recordBuilder, all); |
| receivedBytes.snapshot(recordBuilder, all); |
| unknownMessagesSent.snapshot(recordBuilder, all); |
| unknownMessagesReceived.snapshot(recordBuilder, all); |
| grpcQueueTime.snapshot(recordBuilder, all); |
| grpcProcessingTime.snapshot(recordBuilder, all); |
| numOpenClientConnections.snapshot(recordBuilder, all); |
| recordBuilder.endRecord(); |
| } |
| |
| @Metric("Number of sent bytes") |
| private MutableCounterLong sentBytes; |
| |
| @Metric("Number of received bytes") |
| private MutableCounterLong receivedBytes; |
| |
| @Metric("Number of unknown messages sent") |
| private MutableCounterLong unknownMessagesSent; |
| |
| @Metric("Number of unknown messages received") |
| private MutableCounterLong unknownMessagesReceived; |
| |
| @Metric("Queue time") |
| private MutableRate grpcQueueTime; |
| |
| // There should be no getter method to avoid |
| // exposing internal representation. FindBugs error raised. |
| private MutableQuantiles[] grpcQueueTimeMillisQuantiles; |
| |
| @Metric("Processsing time") |
| private MutableRate grpcProcessingTime; |
| |
| // There should be no getter method to avoid |
| // exposing internal representation. FindBugs error raised. |
| private MutableQuantiles[] grpcProcessingTimeMillisQuantiles; |
| |
| @Metric("Number of active clients connected") |
| private MutableCounterLong numOpenClientConnections; |
| |
| public void incrSentBytes(long byteCount) { |
| sentBytes.incr(byteCount); |
| } |
| |
| public void incrReceivedBytes(long byteCount) { |
| receivedBytes.incr(byteCount); |
| } |
| |
| public void incrUnknownMessagesSent() { |
| unknownMessagesSent.incr(); |
| } |
| |
| public void incrUnknownMessagesReceived() { |
| unknownMessagesReceived.incr(); |
| } |
| |
| public void addGrpcQueueTime(int queueTime) { |
| grpcQueueTime.add(queueTime); |
| if (grpcQuantileEnable) { |
| for (MutableQuantiles q : grpcQueueTimeMillisQuantiles) { |
| if (q != null) { |
| q.add(queueTime); |
| } |
| } |
| } |
| } |
| |
| public void addGrpcProcessingTime(int processingTime) { |
| grpcProcessingTime.add(processingTime); |
| if (grpcQuantileEnable) { |
| for (MutableQuantiles q : grpcProcessingTimeMillisQuantiles) { |
| if (q != null) { |
| q.add(processingTime); |
| } |
| } |
| } |
| } |
| |
| public void inrcNumOpenClientConnections() { |
| numOpenClientConnections.incr(); |
| } |
| |
| public void decrNumOpenClientConnections() { |
| numOpenClientConnections.incr(-1); |
| } |
| |
| public long getSentBytes() { |
| return sentBytes.value(); |
| } |
| |
| public long getReceivedBytes() { |
| return receivedBytes.value(); |
| } |
| |
| public long getUnknownMessagesSent() { |
| return unknownMessagesSent.value(); |
| } |
| |
| public long getUnknownMessagesReceived() { |
| return unknownMessagesReceived.value(); |
| } |
| |
| public MutableRate getGrpcQueueTime() { |
| return grpcQueueTime; |
| } |
| |
| public MutableRate getGrpcProcessingTime() { |
| return grpcProcessingTime; |
| } |
| |
| public long getNumActiveClientConnections() { |
| return numOpenClientConnections.value(); |
| } |
| |
| public void setRequestType(String requestType) { |
| this.requestType = requestType; |
| } |
| |
| public String getRequestType() { |
| return requestType; |
| } |
| } |