| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.HConstants.HBASE_SPLIT_WAL_MAX_SPLITTER;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.hamcrest.CoreMatchers.is;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.hamcrest.CoreMatchers.not;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.hamcrest.MatcherAssert.assertThat;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.junit.Assert.assertEquals;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import static org.junit.Assert.assertTrue;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import static org.mockito.Mockito.mock;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import static org.mockito.Mockito.when;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Objects;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.atomic.LongAdder;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.conf.Configuration;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.CoordinatedStateManager;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.ServerName;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.SplitLogCounters;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.SplitLogTask;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.Waiter;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.coordination.ZkCoordinatedStateManager;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.executor.ExecutorService;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.executor.ExecutorType;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.testclassification.RegionServerTests;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.MockServer;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.zookeeper.ZKSplitLog;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.zookeeper.ZNodePaths;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.zookeeper.CreateMode;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.zookeeper.ZooDefs.Ids;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.junit.After;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.junit.Before;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.junit.ClassRule;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.junit.Test;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.junit.experimental.categories.Category;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.slf4j.Logger;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.slf4j.LoggerFactory;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span>@Category({RegionServerTests.class, MediumTests.class})<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>public class TestSplitLogWorker {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> @ClassRule<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> HBaseClassTestRule.forClass(TestSplitLogWorker.class);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private static final Logger LOG = LoggerFactory.getLogger(TestSplitLogWorker.class);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private static final int WAIT_TIME = 15000;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private final ServerName MANAGER = ServerName.valueOf("manager,1,1");<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private final static HBaseTestingUtil TEST_UTIL =<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> new HBaseTestingUtil();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private DummyServer ds;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private ZKWatcher zkw;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private SplitLogWorker slw;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private ExecutorService executorService;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> static class DummyServer extends MockServer {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> private ZKWatcher zkw;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private Configuration conf;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private CoordinatedStateManager cm;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public DummyServer(ZKWatcher zkw, Configuration conf) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> this.zkw = zkw;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> this.conf = conf;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> cm = new ZkCoordinatedStateManager(this);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> @Override<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> public Configuration getConfiguration() {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return conf;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> @Override<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> public ZKWatcher getZooKeeper() {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> return zkw;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> }<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> @Override<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public CoordinatedStateManager getCoordinatedStateManager() {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> return cm;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<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> private void waitForCounter(LongAdder ctr, long oldval, long newval, long timems)<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> throws Exception {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> assertTrue("ctr=" + ctr.sum() + ", oldval=" + oldval + ", newval=" + newval,<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> waitForCounterBoolean(ctr, oldval, newval, timems));<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> }<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> private boolean waitForCounterBoolean(final LongAdder ctr, final long oldval, long newval,<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> long timems) throws Exception {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> return waitForCounterBoolean(ctr, oldval, newval, timems, true);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> private boolean waitForCounterBoolean(final LongAdder ctr, final long oldval, final long newval,<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> long timems, boolean failIfTimeout) throws Exception {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> long timeWaited = TEST_UTIL.waitFor(timems, 10, failIfTimeout,<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> new Waiter.Predicate<Exception>() {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> @Override<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> public boolean evaluate() throws Exception {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> return (ctr.sum() >= newval);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> });<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if( timeWaited > 0) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> // when not timed out<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> assertEquals(newval, ctr.sum());<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> return true;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> @Before<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> public void setup() throws Exception {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> TEST_UTIL.startMiniZKCluster();<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> Configuration conf = TEST_UTIL.getConfiguration();<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> zkw = new ZKWatcher(TEST_UTIL.getConfiguration(),<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> "split-log-worker-tests", null);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> ds = new DummyServer(zkw, conf);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ZKUtil.deleteChildrenRecursively(zkw, zkw.getZNodePaths().baseZNode);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> ZKUtil.createAndFailSilent(zkw, zkw.getZNodePaths().baseZNode);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> assertThat(ZKUtil.checkExists(zkw, zkw.getZNodePaths().baseZNode), not(is(-1)));<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> LOG.debug(zkw.getZNodePaths().baseZNode + " created");<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> ZKUtil.createAndFailSilent(zkw, zkw.getZNodePaths().splitLogZNode);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> assertThat(ZKUtil.checkExists(zkw, zkw.getZNodePaths().splitLogZNode), not(is(-1)));<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> LOG.debug(zkw.getZNodePaths().splitLogZNode + " created");<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> ZKUtil.createAndFailSilent(zkw, zkw.getZNodePaths().rsZNode);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> assertThat(ZKUtil.checkExists(zkw, zkw.getZNodePaths().rsZNode), not(is(-1)));<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> SplitLogCounters.resetCounters();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> executorService = new ExecutorService("TestSplitLogWorker");<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> ExecutorType.RS_LOG_REPLAY_OPS).setCorePoolSize(10));<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> @After<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> public void teardown() throws Exception {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (executorService != null) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> executorService.shutdown();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> TEST_UTIL.shutdownMiniZKCluster();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> SplitLogWorker.TaskExecutor neverEndingTask =<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> new SplitLogWorker.TaskExecutor() {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span><a name="line.171"></a> |
| <span class="sourceLineNo">172</span> @Override<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> public Status exec(String name, CancelableProgressable p) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> while (true) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> try {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> Thread.sleep(1000);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> } catch (InterruptedException e) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> return Status.PREEMPTED;<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> if (!p.progress()) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> return Status.PREEMPTED;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> };<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> @Test<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> public void testAcquireTaskAtStartup() throws Exception {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> LOG.info("testAcquireTaskAtStartup");<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> SplitLogCounters.resetCounters();<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> final String TATAS = "tatas";<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> final ServerName RS = ServerName.valueOf("rs,1,1");<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> RegionServerServices mockedRS = getRegionServer(RS);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> zkw.getRecoverableZooKeeper().create(ZKSplitLog.getEncodedNodeName(zkw, TATAS),<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> new SplitLogTask.Unassigned(ServerName.valueOf("mgr,1,1")).toByteArray(),<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> Ids.OPEN_ACL_UNSAFE,<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> CreateMode.PERSISTENT);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> SplitLogWorker slw =<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS, neverEndingTask);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> slw.start();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> try {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, WAIT_TIME);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> byte [] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TATAS));<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> SplitLogTask slt = SplitLogTask.parseFrom(bytes);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> assertTrue(slt.isOwned(RS));<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> } finally {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> stopSplitLogWorker(slw);<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> }<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> private void stopSplitLogWorker(final SplitLogWorker slw)<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> throws InterruptedException {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> if (slw != null) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> slw.stop();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> slw.worker.join(WAIT_TIME);<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> if (slw.worker.isAlive()) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> assertTrue(("Could not stop the worker thread slw=" + slw) == null);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> }<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> }<a name="line.222"></a> |
| <span class="sourceLineNo">223</span><a name="line.223"></a> |
| <span class="sourceLineNo">224</span> @Test<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> public void testRaceForTask() throws Exception {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> LOG.info("testRaceForTask");<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> SplitLogCounters.resetCounters();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> final String TRFT = "trft";<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> final ServerName SVR1 = ServerName.valueOf("svr1,1,1");<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> final ServerName SVR2 = ServerName.valueOf("svr2,1,1");<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> zkw.getRecoverableZooKeeper().create(ZKSplitLog.getEncodedNodeName(zkw, TRFT),<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> new SplitLogTask.Unassigned(MANAGER).toByteArray(),<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> RegionServerServices mockedRS1 = getRegionServer(SVR1);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> RegionServerServices mockedRS2 = getRegionServer(SVR2);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> SplitLogWorker slw1 =<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS1, neverEndingTask);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> SplitLogWorker slw2 =<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS2, neverEndingTask);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> slw1.start();<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> slw2.start();<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> try {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, WAIT_TIME);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // Assert that either the tot_wkr_failed_to_grab_task_owned count was set of if<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // not it, that we fell through to the next counter in line and it was set.<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> assertTrue(waitForCounterBoolean(SplitLogCounters.tot_wkr_failed_to_grab_task_owned, 0, 1,<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> WAIT_TIME, false) ||<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> SplitLogCounters.tot_wkr_failed_to_grab_task_lost_race.sum() == 1);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> byte [] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TRFT));<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> SplitLogTask slt = SplitLogTask.parseFrom(bytes);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> assertTrue(slt.isOwned(SVR1) || slt.isOwned(SVR2));<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> } finally {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> stopSplitLogWorker(slw1);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> stopSplitLogWorker(slw2);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> }<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span><a name="line.257"></a> |
| <span class="sourceLineNo">258</span> @Test<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> public void testPreemptTask() throws Exception {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> LOG.info("testPreemptTask");<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> SplitLogCounters.resetCounters();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> final ServerName SRV = ServerName.valueOf("tpt_svr,1,1");<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> final String PATH = ZKSplitLog.getEncodedNodeName(zkw, "tpt_task");<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> RegionServerServices mockedRS = getRegionServer(SRV);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> SplitLogWorker slw =<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS, neverEndingTask);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> slw.start();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> try {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> Thread.yield(); // let the worker start<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> Thread.sleep(1000);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> waitForCounter(SplitLogCounters.tot_wkr_task_grabing, 0, 1, WAIT_TIME);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> // this time create a task node after starting the splitLogWorker<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> zkw.getRecoverableZooKeeper().create(PATH,<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> new SplitLogTask.Unassigned(MANAGER).toByteArray(),<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span><a name="line.277"></a> |
| <span class="sourceLineNo">278</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, WAIT_TIME);<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> assertEquals(1, slw.getTaskReadySeq());<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> byte [] bytes = ZKUtil.getData(zkw, PATH);<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> SplitLogTask slt = SplitLogTask.parseFrom(bytes);<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> assertTrue(slt.isOwned(SRV));<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> slt = new SplitLogTask.Owned(MANAGER);<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> ZKUtil.setData(zkw, PATH, slt.toByteArray());<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 0, 1, WAIT_TIME);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> } finally {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> stopSplitLogWorker(slw);<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span><a name="line.290"></a> |
| <span class="sourceLineNo">291</span> @Test<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> public void testMultipleTasks() throws Exception {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> LOG.info("testMultipleTasks");<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> SplitLogCounters.resetCounters();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> final ServerName SRV = ServerName.valueOf("tmt_svr,1,1");<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> final String PATH1 = ZKSplitLog.getEncodedNodeName(zkw, "tmt_task");<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> RegionServerServices mockedRS = getRegionServer(SRV);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> SplitLogWorker slw =<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS, neverEndingTask);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> slw.start();<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> try {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> Thread.yield(); // let the worker start<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> Thread.sleep(100);<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> waitForCounter(SplitLogCounters.tot_wkr_task_grabing, 0, 1, WAIT_TIME);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span><a name="line.305"></a> |
| <span class="sourceLineNo">306</span> SplitLogTask unassignedManager =<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> new SplitLogTask.Unassigned(MANAGER);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> zkw.getRecoverableZooKeeper().create(PATH1, unassignedManager.toByteArray(),<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, WAIT_TIME);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> // now the worker is busy doing the above task<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> // create another task<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> final String PATH2 = ZKSplitLog.getEncodedNodeName(zkw, "tmt_task_2");<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> zkw.getRecoverableZooKeeper().create(PATH2, unassignedManager.toByteArray(),<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span><a name="line.318"></a> |
| <span class="sourceLineNo">319</span> // preempt the first task, have it owned by another worker<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> final ServerName anotherWorker = ServerName.valueOf("another-worker,1,1");<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> SplitLogTask slt = new SplitLogTask.Owned(anotherWorker);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> ZKUtil.setData(zkw, PATH1, slt.toByteArray());<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 0, 1, WAIT_TIME);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 1, 2, WAIT_TIME);<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> assertEquals(2, slw.getTaskReadySeq());<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> byte [] bytes = ZKUtil.getData(zkw, PATH2);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> slt = SplitLogTask.parseFrom(bytes);<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> assertTrue(slt.isOwned(SRV));<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> } finally {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> stopSplitLogWorker(slw);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> }<a name="line.333"></a> |
| <span class="sourceLineNo">334</span><a name="line.334"></a> |
| <span class="sourceLineNo">335</span> @Test<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> public void testRescan() throws Exception {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> LOG.info("testRescan");<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> SplitLogCounters.resetCounters();<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> final ServerName SRV = ServerName.valueOf("svr,1,1");<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> RegionServerServices mockedRS = getRegionServer(SRV);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> slw = new SplitLogWorker(ds, TEST_UTIL.getConfiguration(), mockedRS, neverEndingTask);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> slw.start();<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> Thread.yield(); // let the worker start<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> Thread.sleep(100);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span><a name="line.345"></a> |
| <span class="sourceLineNo">346</span> String task = ZKSplitLog.getEncodedNodeName(zkw, "task");<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> SplitLogTask slt = new SplitLogTask.Unassigned(MANAGER);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> zkw.getRecoverableZooKeeper().create(task,slt.toByteArray(), Ids.OPEN_ACL_UNSAFE,<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> CreateMode.PERSISTENT);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span><a name="line.350"></a> |
| <span class="sourceLineNo">351</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, WAIT_TIME);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> // now the worker is busy doing the above task<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> // preempt the task, have it owned by another worker<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> ZKUtil.setData(zkw, task, slt.toByteArray());<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 0, 1, WAIT_TIME);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span><a name="line.357"></a> |
| <span class="sourceLineNo">358</span> // create a RESCAN node<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> String rescan = ZKSplitLog.getEncodedNodeName(zkw, "RESCAN");<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> rescan = zkw.getRecoverableZooKeeper().create(rescan, slt.toByteArray(), Ids.OPEN_ACL_UNSAFE,<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> CreateMode.PERSISTENT_SEQUENTIAL);<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 1, 2, WAIT_TIME);<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> // RESCAN node might not have been processed if the worker became busy<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> // with the above task. preempt the task again so that now the RESCAN<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> // node is processed<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> ZKUtil.setData(zkw, task, slt.toByteArray());<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 1, 2, WAIT_TIME);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired_rescan, 0, 1, WAIT_TIME);<a name="line.369"></a> |
| <span class="sourceLineNo">370</span><a name="line.370"></a> |
| <span class="sourceLineNo">371</span> List<String> nodes = ZKUtil.listChildrenNoWatch(zkw, zkw.getZNodePaths().splitLogZNode);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> LOG.debug(Objects.toString(nodes));<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> int num = 0;<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> for (String node : nodes) {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> num++;<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> if (node.startsWith("RESCAN")) {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> String name = ZKSplitLog.getEncodedNodeName(zkw, node);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> String fn = ZKSplitLog.getFileName(name);<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> byte [] data = ZKUtil.getData(zkw,<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> ZNodePaths.joinZNode(zkw.getZNodePaths().splitLogZNode, fn));<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> slt = SplitLogTask.parseFrom(data);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> assertTrue(slt.toString(), slt.isDone(SRV));<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> assertEquals(2, num);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> @Test<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> public void testAcquireMultiTasks() throws Exception {<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> LOG.info("testAcquireMultiTasks");<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> SplitLogCounters.resetCounters();<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> final String TATAS = "tatas";<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> final ServerName RS = ServerName.valueOf("rs,1,1");<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> final int maxTasks = 3;<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> Configuration testConf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> testConf.setInt(HBASE_SPLIT_WAL_MAX_SPLITTER, maxTasks);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> RegionServerServices mockedRS = getRegionServer(RS);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> for (int i = 0; i < maxTasks; i++) {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> zkw.getRecoverableZooKeeper().create(ZKSplitLog.getEncodedNodeName(zkw, TATAS + i),<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> new SplitLogTask.Unassigned(ServerName.valueOf("mgr,1,1")).toByteArray(),<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> }<a name="line.402"></a> |
| <span class="sourceLineNo">403</span><a name="line.403"></a> |
| <span class="sourceLineNo">404</span> SplitLogWorker slw = new SplitLogWorker(ds, testConf, mockedRS, neverEndingTask);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> slw.start();<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> try {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, maxTasks, WAIT_TIME);<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> for (int i = 0; i < maxTasks; i++) {<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> byte[] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TATAS + i));<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> SplitLogTask slt = SplitLogTask.parseFrom(bytes);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> assertTrue(slt.isOwned(RS));<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> }<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> } finally {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> stopSplitLogWorker(slw);<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> }<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> }<a name="line.416"></a> |
| <span class="sourceLineNo">417</span><a name="line.417"></a> |
| <span class="sourceLineNo">418</span> /**<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> * Create a mocked region server service instance<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> */<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> private RegionServerServices getRegionServer(ServerName name) {<a name="line.421"></a> |
| <span class="sourceLineNo">422</span><a name="line.422"></a> |
| <span class="sourceLineNo">423</span> RegionServerServices mockedServer = mock(RegionServerServices.class);<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> when(mockedServer.getConfiguration()).thenReturn(TEST_UTIL.getConfiguration());<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> when(mockedServer.getServerName()).thenReturn(name);<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> when(mockedServer.getZooKeeper()).thenReturn(zkw);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> when(mockedServer.isStopped()).thenReturn(false);<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> when(mockedServer.getExecutorService()).thenReturn(executorService);<a name="line.428"></a> |
| <span class="sourceLineNo">429</span><a name="line.429"></a> |
| <span class="sourceLineNo">430</span> return mockedServer;<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> }<a name="line.431"></a> |
| <span class="sourceLineNo">432</span><a name="line.432"></a> |
| <span class="sourceLineNo">433</span>}<a name="line.433"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
