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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.chaos;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.net.UnknownHostException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Arrays;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Collection;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.conf.Configuration;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.AuthUtil;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.ChoreService;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.ScheduledChore;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.util.GenericOptionsParser;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.slf4j.Logger;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.slf4j.LoggerFactory;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.GnuParser;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.Option;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.Options;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span>/**<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * Class used to start/stop Chaos related services (currently chaosagent)<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> */<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>@InterfaceAudience.Private<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>public class ChaosService {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span> private static final Logger LOG = LoggerFactory.getLogger(ChaosService.class.getName());<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> public static void execute(String[] args, Configuration conf) {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> LOG.info("arguments : " + Arrays.toString(args));<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> try {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> CommandLine cmdline = new GnuParser().parse(getOptions(), args);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> if (cmdline.hasOption(ChaosServiceName.CHAOSAGENT.toString().toLowerCase())) {<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> String actionStr =<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> cmdline.getOptionValue(ChaosServiceName.CHAOSAGENT.toString().toLowerCase());<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> try {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> ExecutorAction action = ExecutorAction.valueOf(actionStr.toUpperCase());<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> if (action == ExecutorAction.START) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> ChaosServiceStart(conf, ChaosServiceName.CHAOSAGENT);<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> } else if (action == ExecutorAction.STOP) {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> ChaosServiceStop();<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> }<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> } catch (IllegalArgumentException e) {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> LOG.error("action passed: {} Unexpected action. Please provide only start/stop.",<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> actionStr, e);<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> throw new RuntimeException(e);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> } else {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> LOG.error("Invalid Options");<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> } catch (Exception e) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> LOG.error("Error while starting ChaosService : ", e);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> }<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> }<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private static void ChaosServiceStart(Configuration conf, ChaosServiceName serviceName) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> switch (serviceName) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> case CHAOSAGENT:<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> ChaosAgent.stopChaosAgent.set(false);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> try {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> Thread t = new Thread(<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> new ChaosAgent(conf, ChaosUtils.getZKQuorum(conf), ChaosUtils.getHostName()));<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> t.start();<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> t.join();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> } catch (InterruptedException | UnknownHostException e) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> LOG.error("Failed while executing next task execution of ChaosAgent on : {}", serviceName,<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> e);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> break;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> default:<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> LOG.error("Service Name not known : " + serviceName.toString());<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private static void ChaosServiceStop() {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> ChaosAgent.stopChaosAgent.set(true);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> private static Options getOptions() {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> Options options = new Options();<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> options.addOption(new Option("c", ChaosServiceName.CHAOSAGENT.toString().toLowerCase(), true,<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> "expecting a start/stop argument"));<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> options<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> .addOption(new Option("D", ChaosServiceName.GENERIC.toString(), true, "generic D param"));<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> LOG.info(Arrays.toString(new Collection[] { options.getOptions() }));<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return options;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> public static void main(String[] args) throws Exception {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> Configuration conf = HBaseConfiguration.create();<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> new GenericOptionsParser(conf, args);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> ChoreService choreChaosService = null;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> ScheduledChore authChore = AuthUtil.getAuthChore(conf);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span><a name="line.113"></a> |
| <span class="sourceLineNo">114</span> try {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> if (authChore != null) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> choreChaosService = new ChoreService(ChaosConstants.CHORE_SERVICE_PREFIX);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> choreChaosService.scheduleChore(authChore);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> execute(args, conf);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> } finally {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> if (authChore != null) choreChaosService.shutdown();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> enum ChaosServiceName {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> CHAOSAGENT,<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> GENERIC<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> }<a name="line.129"></a> |
| <span class="sourceLineNo">130</span><a name="line.130"></a> |
| <span class="sourceLineNo">131</span> enum ExecutorAction {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> START,<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> STOP<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span>}<a name="line.135"></a> |
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