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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.regionserver.wal;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.junit.Assert.assertFalse;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.NavigableMap;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.TreeMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HConstants;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableName;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.testclassification.RegionServerTests;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.FSTableDescriptors;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.wal.WALKeyImpl;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.junit.ClassRule;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.junit.Test;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.junit.experimental.categories.Category;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.slf4j.Logger;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.slf4j.LoggerFactory;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span>/**<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * Test many concurrent appenders to an WAL while rolling the log.<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> */<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>@Category({RegionServerTests.class, MediumTests.class})<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>public class TestLogRollingNoCluster {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> @ClassRule<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> HBaseClassTestRule.forClass(TestLogRollingNoCluster.class);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private final static byte [] EMPTY_1K_ARRAY = new byte[1024];<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private static final int NUM_THREADS = 100; // Spin up this many threads<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static final int NUM_ENTRIES = 100; // How many entries to write<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /** ProtobufLogWriter that simulates higher latencies in sync() call */<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public static class HighLatencySyncWriter extends ProtobufLogWriter {<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> @Override<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> public void sync(boolean forceSync) throws IOException {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> Threads.sleep(ThreadLocalRandom.current().nextInt(10));<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> super.sync(forceSync);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> Threads.sleep(ThreadLocalRandom.current().nextInt(10));<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> /**<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * Spin up a bunch of threads and have them all append to a WAL. Roll the<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * WAL frequently to try and trigger NPE.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @throws IOException<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @throws InterruptedException<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> @Test<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> public void testContendedLogRolling() throws Exception {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> TEST_UTIL.startMiniDFSCluster(3);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> Path dir = TEST_UTIL.getDataTestDirOnTestFS();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> // The implementation needs to know the 'handler' count.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> TEST_UTIL.getConfiguration().setInt(HConstants.REGION_SERVER_HANDLER_COUNT, NUM_THREADS);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> final Configuration conf = new Configuration(TEST_UTIL.getConfiguration());<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> conf.set(WALFactory.WAL_PROVIDER, "filesystem");<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> CommonFSUtils.setRootDir(conf, dir);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> FSTableDescriptors fsTableDescriptors = new FSTableDescriptors(TEST_UTIL.getConfiguration());<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> FSTableDescriptors.tryUpdateMetaTableDescriptor(TEST_UTIL.getConfiguration());<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> TableDescriptor metaTableDescriptor = fsTableDescriptors.get(TableName.META_TABLE_NAME);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> conf.set("hbase.regionserver.hlog.writer.impl", HighLatencySyncWriter.class.getName());<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> final WALFactory wals = new WALFactory(conf, TestLogRollingNoCluster.class.getName());<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> final WAL wal = wals.getWAL(null);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> Appender [] appenders = null;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> final int numThreads = NUM_THREADS;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> appenders = new Appender[numThreads];<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> try {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> for (int i = 0; i < numThreads; i++) {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // Have each appending thread write 'count' entries<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> appenders[i] = new Appender(metaTableDescriptor, wal, i, NUM_ENTRIES);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> for (int i = 0; i < numThreads; i++) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> appenders[i].start();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> for (int i = 0; i < numThreads; i++) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> //ensure that all threads are joined before closing the wal<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> appenders[i].join();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> } finally {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> wals.close();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> for (int i = 0; i < numThreads; i++) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> assertFalse("Error: " + appenders[i].getException(), appenders[i].isException());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> TEST_UTIL.shutdownMiniDFSCluster();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> /**<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * Appender thread. Appends to passed wal file.<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> */<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> static class Appender extends Thread {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> private final Logger log;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> private final WAL wal;<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> private final int count;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> private Exception e = null;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> private final TableDescriptor metaTableDescriptor;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> Appender(TableDescriptor metaTableDescriptor, final WAL wal, final int index, final int count) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> super("" + index);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> this.wal = wal;<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> this.count = count;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> this.metaTableDescriptor = metaTableDescriptor;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> this.log = LoggerFactory.getLogger("Appender:" + getName());<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> /**<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * @return Call when the thread is done.<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> */<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> boolean isException() {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> return !isAlive() && this.e != null;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> Exception getException() {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> return this.e;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> @Override<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> public void run() {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> this.log.info(getName() +" started");<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> final MultiVersionConcurrencyControl mvcc = new MultiVersionConcurrencyControl();<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> try {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> TableDescriptors tds = new FSTableDescriptors(TEST_UTIL.getConfiguration());<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> FSTableDescriptors.tryUpdateMetaTableDescriptor(TEST_UTIL.getConfiguration());<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> TableDescriptor htd = tds.get(TableName.META_TABLE_NAME);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> for (int i = 0; i < this.count; i++) {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> long now = System.currentTimeMillis();<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // Roll every ten edits<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (i % 10 == 0) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> this.wal.rollWriter();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> WALEdit edit = new WALEdit();<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> byte[] bytes = Bytes.toBytes(i);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> edit.add(new KeyValue(bytes, bytes, bytes, now, EMPTY_1K_ARRAY));<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> RegionInfo hri = RegionInfoBuilder.FIRST_META_REGIONINFO;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> NavigableMap<byte[], Integer> scopes = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> for(byte[] fam: this.metaTableDescriptor.getColumnFamilyNames()) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> scopes.put(fam, 0);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> final long txid = wal.appendData(hri, new WALKeyImpl(hri.getEncodedNameAsBytes(),<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> TableName.META_TABLE_NAME, now, mvcc, scopes), edit);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> Threads.sleep(ThreadLocalRandom.current().nextInt(5));<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> wal.sync(txid);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> String msg = getName() + " finished";<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> if (isException())<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> this.log.info(msg, getException());<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> else<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> this.log.info(msg);<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> } catch (Exception e) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> this.e = e;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> log.info("Caught exception from Appender:" + getName(), e);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> } finally {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // Call sync on our log.else threads just hang out.<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> try {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> this.wal.sync();<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> } catch (IOException e) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> throw new RuntimeException(e);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span><a name="line.201"></a> |
| <span class="sourceLineNo">202</span> //@org.junit.Rule<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> //public org.apache.hadoop.hbase.ResourceCheckerJUnitRule cu =<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> // new org.apache.hadoop.hbase.ResourceCheckerJUnitRule();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span>}<a name="line.205"></a> |
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