| /** |
| * 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.ambari.metrics.core.loadsimulator; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Sample Usage: |
| * <pre> |
| * $ java -cp "dependency/*":LoadSimulator-1.0-SNAPSHOT.jar \ |
| * org.apache.ambari.metrics.MetricsLoadSimulator \ |
| * -h "bartosz.laptop" -n 2 -m "162.216.148.45" -c 10000 -s 30000</pre> |
| */ |
| public class MetricsLoadSimulator { |
| private final static Logger LOG = LoggerFactory.getLogger(MetricsLoadSimulator |
| .class); |
| |
| public static void main(String[] args) throws IOException, InterruptedException { |
| Map<String, String> mapArgs = parseArgs(args); |
| |
| LoadRunner loadRunner = new LoadRunner( |
| mapArgs.get("hostName"), |
| Integer.valueOf(mapArgs.get("numberOfHosts")), |
| mapArgs.get("metricsHostName"), |
| mapArgs.get("minHostIndex") == null ? 0 : Integer.valueOf(mapArgs.get("minHostIndex")), |
| Integer.valueOf(mapArgs.get("collectInterval")), |
| Integer.valueOf(mapArgs.get("sendInterval")), |
| Boolean.valueOf(mapArgs.get("master")) |
| ); |
| |
| loadRunner.start(); |
| } |
| |
| /* |
| Another entry point to the test to be called from ./jmetertest/AMSJMeterLoadTest.java |
| */ |
| public static void startTest(Map<String,String> mapArgs) { |
| |
| LoadRunner loadRunner = new LoadRunner( |
| mapArgs.get("hostName"), |
| Integer.valueOf(mapArgs.get("numberOfHosts")), |
| mapArgs.get("metricsHostName"), |
| mapArgs.get("minHostIndex") == null ? 0 : Integer.valueOf(mapArgs.get("minHostIndex")), |
| Integer.valueOf(mapArgs.get("collectInterval")), |
| Integer.valueOf(mapArgs.get("sendInterval")), |
| Boolean.valueOf(mapArgs.get("master")) |
| ); |
| |
| loadRunner.start(); |
| } |
| |
| private static Map<String, String> parseArgs(String[] args) { |
| Map<String, String> mapProps = new HashMap<String, String>(); |
| mapProps.put("hostName", "host"); |
| mapProps.put("numberOfHosts", "20"); |
| mapProps.put("trafficType", "burst"); |
| mapProps.put("metricsHostName", "localhost"); |
| mapProps.put("collectInterval", "10000"); |
| mapProps.put("sendInterval", "60000"); |
| |
| if (args.length == 0) { |
| printUsage(); |
| throw new RuntimeException("Unexpected argument, See usage message."); |
| } else { |
| for (int i = 0; i < args.length; i += 2) { |
| String arg = args[i]; |
| if (arg.equals("-h")) { |
| mapProps.put("hostName", args[i + 1]); |
| } else if (arg.equals("-n")) { |
| mapProps.put("numberOfHosts", args[i + 1]); |
| } else if (arg.equals("-t")) { |
| mapProps.put("trafficType", args[i + 1]); |
| } else if (arg.equals("-m")) { |
| mapProps.put("metricsHostName", args[i + 1]); |
| } else if (arg.equals("-c")) { |
| mapProps.put("collectInterval", args[i + 1]); |
| } else if (arg.equals("-s")) { |
| mapProps.put("sendInterval", args[i + 1]); |
| } else if (arg.equals("-M")) { |
| mapProps.put("master", args[i + 1]); |
| } else if (arg.equals("-d")) { |
| // a dummy switch - it says that we agree with defaults |
| } else { |
| printUsage(); |
| throw new RuntimeException("Unexpected argument, See usage message."); |
| } |
| } |
| } |
| |
| LOG.info("Recognized options: baseHostName={} hosts#={} trafficMode={} " + |
| "metricsHostName={} collectIntervalMillis={} sendIntervalMillis={} " + |
| "simulateMaster={}", |
| mapProps.get("hostName"), |
| Integer.valueOf(mapProps.get("numberOfHosts")), |
| mapProps.get("trafficType"), |
| mapProps.get("metricsHostName"), |
| Integer.valueOf(mapProps.get("collectInterval")), |
| Integer.valueOf(mapProps.get("sendInterval")), |
| Boolean.valueOf(mapProps.get("master")) |
| ); |
| |
| return mapProps; |
| } |
| |
| public static void printUsage() { |
| System.err.println("Usage: java MetricsLoadSimulator [OPTIONS]"); |
| System.err.println("Options: "); |
| System.err.println("[-h hostName] [-n numberOfHosts] " |
| + "[-t trafficMode {burst, staggered}] [-m metricsHostName] " |
| + "[-c collectIntervalMillis {10 sec}] [-s sendIntervalMillis {60 sec}]" |
| + "[-M simulateMaster {true, false}] "); |
| System.err.println(); |
| System.err.println("When you select a master, then one simulated host will play"); |
| System.err.println("a role of a master, and the rest will be slaves. Otherwise"); |
| System.err.println("all simulation threads (single thread is for single host)"); |
| System.err.println("will be slave hosts"); |
| } |
| } |