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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.fs;</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.apache.hadoop.hbase.util.LocatedBlockHelper.getLocatedBlockLocations;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import java.lang.reflect.InvocationTargetException;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.lang.reflect.Method;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.net.BindException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.net.ServerSocket;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.fs.BlockLocation;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.fs.FSDataInputStream;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.fs.FSDataOutputStream;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.fs.FileStatus;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.testclassification.LargeTests;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.testclassification.MiscTests;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hdfs.DistributedFileSystem;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hdfs.MiniDFSCluster;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hdfs.protocol.DatanodeInfo;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hdfs.protocol.LocatedBlock;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hdfs.protocol.LocatedBlocks;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hdfs.server.datanode.DataNode;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.junit.After;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.junit.Assert;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.junit.Before;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.junit.ClassRule;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.junit.Rule;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.junit.Test;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.junit.rules.TestName;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.slf4j.Logger;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55">/**</span> |
| <span class="source-line-no">056</span><span id="line-56"> * Tests for the hdfs fix from HBASE-6435. Please don't add new subtest which involves starting /</span> |
| <span class="source-line-no">057</span><span id="line-57"> * stopping MiniDFSCluster in this class. When stopping MiniDFSCluster, shutdown hooks would be</span> |
| <span class="source-line-no">058</span><span id="line-58"> * cleared in hadoop's ShutdownHookManager in hadoop 3. This leads to 'Failed suppression of fs</span> |
| <span class="source-line-no">059</span><span id="line-59"> * shutdown hook' error in region server.</span> |
| <span class="source-line-no">060</span><span id="line-60"> */</span> |
| <span class="source-line-no">061</span><span id="line-61">@Category({ MiscTests.class, LargeTests.class })</span> |
| <span class="source-line-no">062</span><span id="line-62">public class TestBlockReorder {</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> @ClassRule</span> |
| <span class="source-line-no">065</span><span id="line-65"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">066</span><span id="line-66"> HBaseClassTestRule.forClass(TestBlockReorder.class);</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> private static final Logger LOG = LoggerFactory.getLogger(TestBlockReorder.class);</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> private Configuration conf;</span> |
| <span class="source-line-no">071</span><span id="line-71"> private MiniDFSCluster cluster;</span> |
| <span class="source-line-no">072</span><span id="line-72"> private HBaseTestingUtil htu;</span> |
| <span class="source-line-no">073</span><span id="line-73"> private DistributedFileSystem dfs;</span> |
| <span class="source-line-no">074</span><span id="line-74"> private static final String host1 = "host1";</span> |
| <span class="source-line-no">075</span><span id="line-75"> private static final String host2 = "host2";</span> |
| <span class="source-line-no">076</span><span id="line-76"> private static final String host3 = "host3";</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> @Rule</span> |
| <span class="source-line-no">079</span><span id="line-79"> public TestName name = new TestName();</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> @Before</span> |
| <span class="source-line-no">082</span><span id="line-82"> public void setUp() throws Exception {</span> |
| <span class="source-line-no">083</span><span id="line-83"> htu = new HBaseTestingUtil();</span> |
| <span class="source-line-no">084</span><span id="line-84"> htu.getConfiguration().setInt("dfs.blocksize", 1024);// For the test with multiple blocks</span> |
| <span class="source-line-no">085</span><span id="line-85"> htu.getConfiguration().setInt("dfs.replication", 3);</span> |
| <span class="source-line-no">086</span><span id="line-86"> htu.startMiniDFSCluster(3, new String[] { "/r1", "/r2", "/r3" },</span> |
| <span class="source-line-no">087</span><span id="line-87"> new String[] { host1, host2, host3 });</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> conf = htu.getConfiguration();</span> |
| <span class="source-line-no">090</span><span id="line-90"> cluster = htu.getDFSCluster();</span> |
| <span class="source-line-no">091</span><span id="line-91"> dfs = (DistributedFileSystem) FileSystem.get(conf);</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> @After</span> |
| <span class="source-line-no">095</span><span id="line-95"> public void tearDownAfterClass() throws Exception {</span> |
| <span class="source-line-no">096</span><span id="line-96"> htu.shutdownMiniCluster();</span> |
| <span class="source-line-no">097</span><span id="line-97"> }</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> /**</span> |
| <span class="source-line-no">100</span><span id="line-100"> * Test that we're can add a hook, and that this hook works when we try to read the file in HDFS.</span> |
| <span class="source-line-no">101</span><span id="line-101"> */</span> |
| <span class="source-line-no">102</span><span id="line-102"> @Test</span> |
| <span class="source-line-no">103</span><span id="line-103"> public void testBlockLocationReorder() throws Exception {</span> |
| <span class="source-line-no">104</span><span id="line-104"> Path p = new Path("hello");</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> Assert.assertTrue((short) cluster.getDataNodes().size() > 1);</span> |
| <span class="source-line-no">107</span><span id="line-107"> final int repCount = 2;</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> // Let's write the file</span> |
| <span class="source-line-no">110</span><span id="line-110"> FSDataOutputStream fop = dfs.create(p, (short) repCount);</span> |
| <span class="source-line-no">111</span><span id="line-111"> final double toWrite = 875.5613;</span> |
| <span class="source-line-no">112</span><span id="line-112"> fop.writeDouble(toWrite);</span> |
| <span class="source-line-no">113</span><span id="line-113"> fop.close();</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> // Let's check we can read it when everybody's there</span> |
| <span class="source-line-no">116</span><span id="line-116"> long start = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">117</span><span id="line-117"> FSDataInputStream fin = dfs.open(p);</span> |
| <span class="source-line-no">118</span><span id="line-118"> Assert.assertTrue(toWrite == fin.readDouble());</span> |
| <span class="source-line-no">119</span><span id="line-119"> long end = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">120</span><span id="line-120"> LOG.info("readtime= " + (end - start));</span> |
| <span class="source-line-no">121</span><span id="line-121"> fin.close();</span> |
| <span class="source-line-no">122</span><span id="line-122"> Assert.assertTrue((end - start) < 30 * 1000);</span> |
| <span class="source-line-no">123</span><span id="line-123"></span> |
| <span class="source-line-no">124</span><span id="line-124"> // Let's kill the first location. But actually the fist location returned will change</span> |
| <span class="source-line-no">125</span><span id="line-125"> // The first thing to do is to get the location, then the port</span> |
| <span class="source-line-no">126</span><span id="line-126"> FileStatus f = dfs.getFileStatus(p);</span> |
| <span class="source-line-no">127</span><span id="line-127"> BlockLocation[] lbs;</span> |
| <span class="source-line-no">128</span><span id="line-128"> do {</span> |
| <span class="source-line-no">129</span><span id="line-129"> lbs = dfs.getFileBlockLocations(f, 0, 1);</span> |
| <span class="source-line-no">130</span><span id="line-130"> } while (lbs.length != 1 && lbs[0].getLength() != repCount);</span> |
| <span class="source-line-no">131</span><span id="line-131"> final String name = lbs[0].getNames()[0];</span> |
| <span class="source-line-no">132</span><span id="line-132"> Assert.assertTrue(name.indexOf(':') > 0);</span> |
| <span class="source-line-no">133</span><span id="line-133"> String portS = name.substring(name.indexOf(':') + 1);</span> |
| <span class="source-line-no">134</span><span id="line-134"> final int port = Integer.parseInt(portS);</span> |
| <span class="source-line-no">135</span><span id="line-135"> LOG.info("port= " + port);</span> |
| <span class="source-line-no">136</span><span id="line-136"> int ipcPort = -1;</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> // Let's find the DN to kill. cluster.getDataNodes(int) is not on the same port, so we need</span> |
| <span class="source-line-no">139</span><span id="line-139"> // to iterate ourselves.</span> |
| <span class="source-line-no">140</span><span id="line-140"> boolean ok = false;</span> |
| <span class="source-line-no">141</span><span id="line-141"> final String lookup = lbs[0].getHosts()[0];</span> |
| <span class="source-line-no">142</span><span id="line-142"> StringBuilder sb = new StringBuilder();</span> |
| <span class="source-line-no">143</span><span id="line-143"> for (DataNode dn : cluster.getDataNodes()) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> final String dnName = getHostName(dn);</span> |
| <span class="source-line-no">145</span><span id="line-145"> sb.append(dnName).append(' ');</span> |
| <span class="source-line-no">146</span><span id="line-146"> if (lookup.equals(dnName)) {</span> |
| <span class="source-line-no">147</span><span id="line-147"> ok = true;</span> |
| <span class="source-line-no">148</span><span id="line-148"> LOG.info("killing datanode " + name + " / " + lookup);</span> |
| <span class="source-line-no">149</span><span id="line-149"> ipcPort = dn.ipcServer.getListenerAddress().getPort();</span> |
| <span class="source-line-no">150</span><span id="line-150"> dn.shutdown();</span> |
| <span class="source-line-no">151</span><span id="line-151"> LOG.info("killed datanode " + name + " / " + lookup);</span> |
| <span class="source-line-no">152</span><span id="line-152"> break;</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"> Assert.assertTrue("didn't find the server to kill, was looking for " + lookup + " found " + sb,</span> |
| <span class="source-line-no">156</span><span id="line-156"> ok);</span> |
| <span class="source-line-no">157</span><span id="line-157"> LOG.info("ipc port= " + ipcPort);</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> // Add the hook, with an implementation checking that we don't use the port we've just killed.</span> |
| <span class="source-line-no">160</span><span id="line-160"> Assert</span> |
| <span class="source-line-no">161</span><span id="line-161"> .assertTrue(HFileSystem.addLocationsOrderInterceptor(conf, new HFileSystem.ReorderBlocks() {</span> |
| <span class="source-line-no">162</span><span id="line-162"> @Override</span> |
| <span class="source-line-no">163</span><span id="line-163"> public void reorderBlocks(Configuration c, LocatedBlocks lbs, String src) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> for (LocatedBlock lb : lbs.getLocatedBlocks()) {</span> |
| <span class="source-line-no">165</span><span id="line-165"> if (getLocatedBlockLocations(lb).length > 1) {</span> |
| <span class="source-line-no">166</span><span id="line-166"> DatanodeInfo[] infos = getLocatedBlockLocations(lb);</span> |
| <span class="source-line-no">167</span><span id="line-167"> if (infos[0].getHostName().equals(lookup)) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> LOG.info("HFileSystem bad host, inverting");</span> |
| <span class="source-line-no">169</span><span id="line-169"> DatanodeInfo tmp = infos[0];</span> |
| <span class="source-line-no">170</span><span id="line-170"> infos[0] = infos[1];</span> |
| <span class="source-line-no">171</span><span id="line-171"> infos[1] = tmp;</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"> }</span> |
| <span class="source-line-no">175</span><span id="line-175"> }</span> |
| <span class="source-line-no">176</span><span id="line-176"> }));</span> |
| <span class="source-line-no">177</span><span id="line-177"></span> |
| <span class="source-line-no">178</span><span id="line-178"> final int retries = 10;</span> |
| <span class="source-line-no">179</span><span id="line-179"> ServerSocket ss = null;</span> |
| <span class="source-line-no">180</span><span id="line-180"> ServerSocket ssI;</span> |
| <span class="source-line-no">181</span><span id="line-181"> try {</span> |
| <span class="source-line-no">182</span><span id="line-182"> ss = new ServerSocket(port);// We're taking the port to have a timeout issue later.</span> |
| <span class="source-line-no">183</span><span id="line-183"> ssI = new ServerSocket(ipcPort);</span> |
| <span class="source-line-no">184</span><span id="line-184"> } catch (BindException be) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> LOG.warn("Got bind exception trying to set up socket on " + port + " or " + ipcPort</span> |
| <span class="source-line-no">186</span><span id="line-186"> + ", this means that the datanode has not closed the socket or"</span> |
| <span class="source-line-no">187</span><span id="line-187"> + " someone else took it. It may happen, skipping this test for this time.", be);</span> |
| <span class="source-line-no">188</span><span id="line-188"> if (ss != null) {</span> |
| <span class="source-line-no">189</span><span id="line-189"> ss.close();</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"> return;</span> |
| <span class="source-line-no">192</span><span id="line-192"> }</span> |
| <span class="source-line-no">193</span><span id="line-193"></span> |
| <span class="source-line-no">194</span><span id="line-194"> // Now it will fail with a timeout, unfortunately it does not always connect to the same box,</span> |
| <span class="source-line-no">195</span><span id="line-195"> // so we try retries times; with the reorder it will never last more than a few milli seconds</span> |
| <span class="source-line-no">196</span><span id="line-196"> for (int i = 0; i < retries; i++) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> start = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">198</span><span id="line-198"> fin = dfs.open(p);</span> |
| <span class="source-line-no">199</span><span id="line-199"> Assert.assertTrue(toWrite == fin.readDouble());</span> |
| <span class="source-line-no">200</span><span id="line-200"> fin.close();</span> |
| <span class="source-line-no">201</span><span id="line-201"> end = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">202</span><span id="line-202"> LOG.info("HFileSystem readtime= " + (end - start));</span> |
| <span class="source-line-no">203</span><span id="line-203"> Assert.assertFalse("We took too much time to read", (end - start) > 60000);</span> |
| <span class="source-line-no">204</span><span id="line-204"> }</span> |
| <span class="source-line-no">205</span><span id="line-205"></span> |
| <span class="source-line-no">206</span><span id="line-206"> ss.close();</span> |
| <span class="source-line-no">207</span><span id="line-207"> ssI.close();</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"></span> |
| <span class="source-line-no">210</span><span id="line-210"> /**</span> |
| <span class="source-line-no">211</span><span id="line-211"> * Allow to get the hostname, using getHostName (hadoop 1) or getDisplayName (hadoop 2)</span> |
| <span class="source-line-no">212</span><span id="line-212"> */</span> |
| <span class="source-line-no">213</span><span id="line-213"> private String getHostName(DataNode dn) throws InvocationTargetException, IllegalAccessException {</span> |
| <span class="source-line-no">214</span><span id="line-214"> Method m;</span> |
| <span class="source-line-no">215</span><span id="line-215"> try {</span> |
| <span class="source-line-no">216</span><span id="line-216"> m = DataNode.class.getMethod("getDisplayName");</span> |
| <span class="source-line-no">217</span><span id="line-217"> } catch (NoSuchMethodException e) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> try {</span> |
| <span class="source-line-no">219</span><span id="line-219"> m = DataNode.class.getMethod("getHostName");</span> |
| <span class="source-line-no">220</span><span id="line-220"> } catch (NoSuchMethodException e1) {</span> |
| <span class="source-line-no">221</span><span id="line-221"> throw new RuntimeException(e1);</span> |
| <span class="source-line-no">222</span><span id="line-222"> }</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225"> String res = (String) m.invoke(dn);</span> |
| <span class="source-line-no">226</span><span id="line-226"> if (res.contains(":")) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> return res.split(":")[0];</span> |
| <span class="source-line-no">228</span><span id="line-228"> } else {</span> |
| <span class="source-line-no">229</span><span id="line-229"> return res;</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> }</span> |
| <span class="source-line-no">232</span><span id="line-232"></span> |
| <span class="source-line-no">233</span><span id="line-233">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
