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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertFalse;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertTrue;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.File;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.FileOutputStream;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.io.IOException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.io.PrintWriter;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HealthChecker.HealthCheckerExitStatus;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.testclassification.MiscTests;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.testclassification.SmallTests;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.util.Shell;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.junit.After;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.ClassRule;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.Test;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.slf4j.Logger;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42">@Category({ MiscTests.class, SmallTests.class })</span> |
| <span class="source-line-no">043</span><span id="line-43">public class TestNodeHealthCheckChore {</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> @ClassRule</span> |
| <span class="source-line-no">046</span><span id="line-46"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">047</span><span id="line-47"> HBaseClassTestRule.forClass(TestNodeHealthCheckChore.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private static final Logger LOG = LoggerFactory.getLogger(TestNodeHealthCheckChore.class);</span> |
| <span class="source-line-no">050</span><span id="line-50"> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();</span> |
| <span class="source-line-no">051</span><span id="line-51"> private static final int SCRIPT_TIMEOUT = 5000;</span> |
| <span class="source-line-no">052</span><span id="line-52"> private File healthScriptFile;</span> |
| <span class="source-line-no">053</span><span id="line-53"> private String eol = System.getProperty("line.separator");</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> @After</span> |
| <span class="source-line-no">056</span><span id="line-56"> public void cleanUp() throws IOException {</span> |
| <span class="source-line-no">057</span><span id="line-57"> // delete and recreate the test directory, ensuring a clean test dir between tests</span> |
| <span class="source-line-no">058</span><span id="line-58"> Path testDir = UTIL.getDataTestDir();</span> |
| <span class="source-line-no">059</span><span id="line-59"> FileSystem fs = UTIL.getTestFileSystem();</span> |
| <span class="source-line-no">060</span><span id="line-60"> fs.delete(testDir, true);</span> |
| <span class="source-line-no">061</span><span id="line-61"> if (!fs.mkdirs(testDir)) throw new IOException("Failed mkdir " + testDir);</span> |
| <span class="source-line-no">062</span><span id="line-62"> }</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> @Test</span> |
| <span class="source-line-no">065</span><span id="line-65"> public void testHealthCheckerSuccess() throws Exception {</span> |
| <span class="source-line-no">066</span><span id="line-66"> String normalScript = "echo \"I am all fine\"";</span> |
| <span class="source-line-no">067</span><span id="line-67"> healthCheckerTest(normalScript, HealthCheckerExitStatus.SUCCESS);</span> |
| <span class="source-line-no">068</span><span id="line-68"> }</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> @Test</span> |
| <span class="source-line-no">071</span><span id="line-71"> public void testHealthCheckerFail() throws Exception {</span> |
| <span class="source-line-no">072</span><span id="line-72"> String errorScript = "echo ERROR" + eol + "echo \"Node not healthy\"";</span> |
| <span class="source-line-no">073</span><span id="line-73"> healthCheckerTest(errorScript, HealthCheckerExitStatus.FAILED);</span> |
| <span class="source-line-no">074</span><span id="line-74"> }</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> @Test</span> |
| <span class="source-line-no">077</span><span id="line-77"> public void testHealthCheckerTimeout() throws Exception {</span> |
| <span class="source-line-no">078</span><span id="line-78"> String timeOutScript = "sleep 10" + eol + "echo \"I am fine\"";</span> |
| <span class="source-line-no">079</span><span id="line-79"> healthCheckerTest(timeOutScript, HealthCheckerExitStatus.TIMED_OUT);</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> public void healthCheckerTest(String script, HealthCheckerExitStatus expectedStatus)</span> |
| <span class="source-line-no">083</span><span id="line-83"> throws Exception {</span> |
| <span class="source-line-no">084</span><span id="line-84"> Configuration config = getConfForNodeHealthScript();</span> |
| <span class="source-line-no">085</span><span id="line-85"> config.addResource(healthScriptFile.getName());</span> |
| <span class="source-line-no">086</span><span id="line-86"> String location = healthScriptFile.getAbsolutePath();</span> |
| <span class="source-line-no">087</span><span id="line-87"> long timeout = config.getLong(HConstants.HEALTH_SCRIPT_TIMEOUT, SCRIPT_TIMEOUT);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> HealthChecker checker = new HealthChecker();</span> |
| <span class="source-line-no">090</span><span id="line-90"> checker.init(location, timeout);</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> createScript(script, true);</span> |
| <span class="source-line-no">093</span><span id="line-93"> HealthReport report = checker.checkHealth();</span> |
| <span class="source-line-no">094</span><span id="line-94"> assertEquals(expectedStatus, report.getStatus());</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> LOG.info("Health Status:" + report.getHealthReport());</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> this.healthScriptFile.delete();</span> |
| <span class="source-line-no">099</span><span id="line-99"> }</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> @Test</span> |
| <span class="source-line-no">102</span><span id="line-102"> public void testRSHealthChore() throws Exception {</span> |
| <span class="source-line-no">103</span><span id="line-103"> Stoppable stop = new StoppableImplementation();</span> |
| <span class="source-line-no">104</span><span id="line-104"> Configuration conf = getConfForNodeHealthScript();</span> |
| <span class="source-line-no">105</span><span id="line-105"> String errorScript = "echo ERROR" + eol + " echo \"Server not healthy\"";</span> |
| <span class="source-line-no">106</span><span id="line-106"> createScript(errorScript, true);</span> |
| <span class="source-line-no">107</span><span id="line-107"> HealthCheckChore rsChore = new HealthCheckChore(100, stop, conf);</span> |
| <span class="source-line-no">108</span><span id="line-108"> try {</span> |
| <span class="source-line-no">109</span><span id="line-109"> // Default threshold is three.</span> |
| <span class="source-line-no">110</span><span id="line-110"> rsChore.chore();</span> |
| <span class="source-line-no">111</span><span id="line-111"> rsChore.chore();</span> |
| <span class="source-line-no">112</span><span id="line-112"> assertFalse("Stoppable must not be stopped.", stop.isStopped());</span> |
| <span class="source-line-no">113</span><span id="line-113"> rsChore.chore();</span> |
| <span class="source-line-no">114</span><span id="line-114"> assertTrue("Stoppable must have been stopped.", stop.isStopped());</span> |
| <span class="source-line-no">115</span><span id="line-115"> } finally {</span> |
| <span class="source-line-no">116</span><span id="line-116"> stop.stop("Finished w/ test");</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> private void createScript(String scriptStr, boolean setExecutable) throws Exception {</span> |
| <span class="source-line-no">121</span><span id="line-121"> if (!this.healthScriptFile.exists()) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> if (!healthScriptFile.createNewFile()) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> throw new IOException("Failed create of " + this.healthScriptFile);</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"> PrintWriter pw = new PrintWriter(new FileOutputStream(healthScriptFile));</span> |
| <span class="source-line-no">127</span><span id="line-127"> try {</span> |
| <span class="source-line-no">128</span><span id="line-128"> pw.println(scriptStr);</span> |
| <span class="source-line-no">129</span><span id="line-129"> pw.flush();</span> |
| <span class="source-line-no">130</span><span id="line-130"> } finally {</span> |
| <span class="source-line-no">131</span><span id="line-131"> pw.close();</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"> healthScriptFile.setExecutable(setExecutable);</span> |
| <span class="source-line-no">134</span><span id="line-134"> LOG.info("Created " + this.healthScriptFile + ", executable=" + setExecutable);</span> |
| <span class="source-line-no">135</span><span id="line-135"> }</span> |
| <span class="source-line-no">136</span><span id="line-136"></span> |
| <span class="source-line-no">137</span><span id="line-137"> private Configuration getConfForNodeHealthScript() throws IOException {</span> |
| <span class="source-line-no">138</span><span id="line-138"> Configuration conf = UTIL.getConfiguration();</span> |
| <span class="source-line-no">139</span><span id="line-139"> File tempDir = new File(UTIL.getDataTestDir().toString());</span> |
| <span class="source-line-no">140</span><span id="line-140"> if (!tempDir.exists()) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> if (!tempDir.mkdirs()) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> throw new IOException("Failed mkdirs " + tempDir);</span> |
| <span class="source-line-no">143</span><span id="line-143"> }</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"> String scriptName =</span> |
| <span class="source-line-no">146</span><span id="line-146"> "HealthScript" + UTIL.getRandomUUID().toString() + (Shell.WINDOWS ? ".cmd" : ".sh");</span> |
| <span class="source-line-no">147</span><span id="line-147"> healthScriptFile = new File(tempDir.getAbsolutePath(), scriptName);</span> |
| <span class="source-line-no">148</span><span id="line-148"> conf.set(HConstants.HEALTH_SCRIPT_LOC, healthScriptFile.getAbsolutePath());</span> |
| <span class="source-line-no">149</span><span id="line-149"> conf.setLong(HConstants.HEALTH_FAILURE_THRESHOLD, 3);</span> |
| <span class="source-line-no">150</span><span id="line-150"> conf.setLong(HConstants.HEALTH_SCRIPT_TIMEOUT, SCRIPT_TIMEOUT);</span> |
| <span class="source-line-no">151</span><span id="line-151"> return conf;</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> /**</span> |
| <span class="source-line-no">155</span><span id="line-155"> * Simple helper class that just keeps track of whether or not its stopped.</span> |
| <span class="source-line-no">156</span><span id="line-156"> */</span> |
| <span class="source-line-no">157</span><span id="line-157"> private static class StoppableImplementation implements Stoppable {</span> |
| <span class="source-line-no">158</span><span id="line-158"> private volatile boolean stop = false;</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> @Override</span> |
| <span class="source-line-no">161</span><span id="line-161"> public void stop(String why) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> this.stop = true;</span> |
| <span class="source-line-no">163</span><span id="line-163"> }</span> |
| <span class="source-line-no">164</span><span id="line-164"></span> |
| <span class="source-line-no">165</span><span id="line-165"> @Override</span> |
| <span class="source-line-no">166</span><span id="line-166"> public boolean isStopped() {</span> |
| <span class="source-line-no">167</span><span id="line-167"> return this.stop;</span> |
| <span class="source-line-no">168</span><span id="line-168"> }</span> |
| <span class="source-line-no">169</span><span id="line-169"></span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171">}</span> |
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| </pre> |
| </div> |
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