| /** |
| * 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.pulsar.zookeeper; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.zookeeper.ZooDefs.OpCode; |
| import org.apache.zookeeper.common.Time; |
| import org.apache.zookeeper.server.Request; |
| import org.aspectj.lang.ProceedingJoinPoint; |
| import org.aspectj.lang.annotation.Around; |
| import org.aspectj.lang.annotation.Aspect; |
| import org.aspectj.lang.annotation.Pointcut; |
| |
| import io.prometheus.client.Counter; |
| import io.prometheus.client.Summary; |
| |
| @Aspect |
| public class FinalRequestProcessorAspect { |
| |
| private static final Map<Integer, String> requestTypeMap = new HashMap<>(); |
| |
| static { |
| // Prefill the map |
| requestTypeMap.put(OpCode.notification, "notification"); |
| requestTypeMap.put(OpCode.create, "create"); |
| requestTypeMap.put(OpCode.delete, "delete"); |
| requestTypeMap.put(OpCode.exists, "exists"); |
| requestTypeMap.put(OpCode.getData, "getData"); |
| requestTypeMap.put(OpCode.setData, "setData"); |
| requestTypeMap.put(OpCode.getACL, "getACL"); |
| requestTypeMap.put(OpCode.setACL, "setACL"); |
| requestTypeMap.put(OpCode.getChildren, "getChildren"); |
| requestTypeMap.put(OpCode.sync, "sync"); |
| requestTypeMap.put(OpCode.ping, "ping"); |
| requestTypeMap.put(OpCode.getChildren2, "getChildren2"); |
| requestTypeMap.put(OpCode.check, "check"); |
| requestTypeMap.put(OpCode.multi, "multi"); |
| requestTypeMap.put(OpCode.auth, "auth"); |
| requestTypeMap.put(OpCode.setWatches, "setWatches"); |
| requestTypeMap.put(OpCode.sasl, "sasl"); |
| requestTypeMap.put(OpCode.createSession, "createSession"); |
| requestTypeMap.put(OpCode.closeSession, "closeSession"); |
| requestTypeMap.put(OpCode.error, "error"); |
| } |
| |
| private static final Counter requests = Counter |
| .build("zookeeper_server_requests", "Requests issued to a particular server").labelNames("type").create() |
| .register(); |
| |
| private static final Summary requestsLatency = Summary.build().name("zookeeper_server_requests_latency_ms") |
| .help("Requests latency in millis") // |
| .quantile(0.50, 0.01) // |
| .quantile(0.75, 0.01) // |
| .quantile(0.95, 0.01) // |
| .quantile(0.99, 0.01) // |
| .quantile(0.999, 0.01) // |
| .quantile(0.9999, 0.01) // |
| .quantile(1.0, 0.01) // |
| .maxAgeSeconds(60) // |
| .labelNames("type") // |
| .create().register(); |
| |
| @Pointcut("execution(void org.apache.zookeeper.server.FinalRequestProcessor.processRequest(..))") |
| public void processRequest() { |
| } |
| |
| @Around("processRequest()") |
| public void timedProcessRequest(ProceedingJoinPoint joinPoint) throws Throwable { |
| joinPoint.proceed(); |
| |
| Request request = (Request) joinPoint.getArgs()[0]; |
| |
| String type = requestTypeMap.getOrDefault(request.type, "unknown"); |
| requests.labels(type).inc(); |
| |
| long latencyMs = Time.currentElapsedTime() - request.createTime; |
| String latencyLabel = isWriteRequest(request.type) ? "write" : "read"; |
| requestsLatency.labels(latencyLabel).observe(latencyMs); |
| } |
| |
| private static boolean isWriteRequest(int opCode) { |
| switch (opCode) { |
| case OpCode.create: |
| case OpCode.delete: |
| case OpCode.setData: |
| case OpCode.setACL: |
| case OpCode.sync: |
| case OpCode.createSession: |
| case OpCode.closeSession: |
| return true; |
| |
| case OpCode.notification: |
| case OpCode.exists: |
| case OpCode.getData: |
| case OpCode.getACL: |
| case OpCode.getChildren: |
| case OpCode.ping: |
| case OpCode.getChildren2: |
| case OpCode.check: |
| case OpCode.multi: |
| case OpCode.auth: |
| case OpCode.setWatches: |
| case OpCode.sasl: |
| case OpCode.error: |
| default: |
| return false; |
| } |
| } |
| } |