| <!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> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * Unless required by applicable law or agreed to in writing, software<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * See the License for the specific language governing permissions and<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * limitations under the License.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> */<a name="line.15"></a> |
| <span class="sourceLineNo">016</span>package org.apache.hadoop.hbase.replication;<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.io.IOException;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.util.ArrayList;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.List;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.NavigableMap;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.TreeMap;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.fs.Path;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HConstants;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Waiter;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.replication.regionserver.Replication;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.replication.regionserver.ReplicationSource;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceInterface;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.testclassification.ReplicationTests;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.wal.WALKeyImpl;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.junit.Assert;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.junit.Before;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.junit.ClassRule;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.junit.Test;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.experimental.categories.Category;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@Category<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> ({ ReplicationTests.class, LargeTests.class }) public class TestReplicationEmptyWALRecovery<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> extends TestReplicationBase {<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> MultiVersionConcurrencyControl mvcc = new MultiVersionConcurrencyControl();<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> static final RegionInfo info = RegionInfoBuilder.newBuilder(tableName).build();<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> NavigableMap<byte[], Integer> scopes = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> @ClassRule public static final HBaseClassTestRule CLASS_RULE =<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> HBaseClassTestRule.forClass(TestReplicationEmptyWALRecovery.class);<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> @Before<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> public void setUp() throws IOException, InterruptedException {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> cleanUp();<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> scopes.put(famName, HConstants.REPLICATION_SCOPE_GLOBAL);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> replicateCount.set(0);<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> replicatedEntries.clear();<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> /**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Waits until there is only one log(the current writing one) in the replication queue<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> *<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @param numRs number of region servers<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private void waitForLogAdvance(int numRs) {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> Waiter.waitFor(CONF1, 100000, new Waiter.Predicate<Exception>() {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> @Override<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public boolean evaluate() throws Exception {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> for (int i = 0; i < numRs; i++) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> HRegionServer hrs = UTIL1.getHBaseCluster().getRegionServer(i);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> RegionInfo regionInfo =<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> UTIL1.getHBaseCluster().getRegions(htable1.getName()).get(0).getRegionInfo();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> WAL wal = hrs.getWAL(regionInfo);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> Path currentFile = ((AbstractFSWAL<?>) wal).getCurrentFileName();<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> Replication replicationService =<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> (Replication) UTIL1.getHBaseCluster().getRegionServer(i).getReplicationSourceService();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> for (ReplicationSourceInterface rsi : replicationService.getReplicationManager()<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> .getSources()) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> ReplicationSource source = (ReplicationSource) rsi;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> // We are making sure that there is only one log queue and that is for the<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // current WAL of region server<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> String logPrefix = source.getQueues().keySet().stream().findFirst().get();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (!currentFile.equals(source.getCurrentPath())<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> || source.getQueues().keySet().size() != 1<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> || source.getQueues().get(logPrefix).size() != 1) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return false;<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> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> return true;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<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><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> private void verifyNumberOfLogsInQueue(int numQueues, int numRs) {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> Waiter.waitFor(CONF1, 10000, new Waiter.Predicate<Exception>() {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> @Override<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> public boolean evaluate() {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> for (int i = 0; i < numRs; i++) {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> Replication replicationService =<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> (Replication) UTIL1.getHBaseCluster().getRegionServer(i).getReplicationSourceService();<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> for (ReplicationSourceInterface rsi : replicationService.getReplicationManager()<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> .getSources()) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> ReplicationSource source = (ReplicationSource) rsi;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> String logPrefix = source.getQueues().keySet().stream().findFirst().get();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (source.getQueues().get(logPrefix).size() != numQueues) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return false;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return true;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> });<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> @Test<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> public void testEmptyWALRecovery() throws Exception {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> final int numRs = UTIL1.getHBaseCluster().getRegionServerThreads().size();<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // for each RS, create an empty wal with same walGroupId<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> final List<Path> emptyWalPaths = new ArrayList<>();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> long ts = System.currentTimeMillis();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> for (int i = 0; i < numRs; i++) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> RegionInfo regionInfo =<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> UTIL1.getHBaseCluster().getRegions(htable1.getName()).get(0).getRegionInfo();<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> WAL wal = UTIL1.getHBaseCluster().getRegionServer(i).getWAL(regionInfo);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> Path currentWalPath = AbstractFSWALProvider.getCurrentFileName(wal);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> String walGroupId = AbstractFSWALProvider.getWALPrefixFromWALName(currentWalPath.getName());<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> Path emptyWalPath = new Path(UTIL1.getDataTestDir(), walGroupId + "." + ts);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> UTIL1.getTestFileSystem().create(emptyWalPath).close();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> emptyWalPaths.add(emptyWalPath);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> injectEmptyWAL(numRs, emptyWalPaths);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span><a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // ReplicationSource should advance past the empty wal, or else the test will fail<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> waitForLogAdvance(numRs);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> verifyNumberOfLogsInQueue(1, numRs);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // we're now writing to the new wal<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> // if everything works, the source should've stopped reading from the empty wal, and start<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> // replicating from the new wal<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> runSimplePutDeleteTest();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> rollWalsAndWaitForDeque(numRs);<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> /**<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> * Test empty WAL along with non empty WALs in the same batch. This test is to make sure<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> * when we see the empty and handle the EOF exception, we are able to existing the previous<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> * batch of entries without loosing it. This test also tests the number of batches shipped<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> *<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> * @throws Exception throws any exception<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> */<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> @Test<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> public void testReplicationOfEmptyWALFollowingNonEmptyWAL() throws Exception {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // Disable the replication peer to accumulate the non empty WAL followed by empty WAL<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> hbaseAdmin.disableReplicationPeer(PEER_ID2);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> int numOfEntriesToReplicate = 20;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> final int numRs = UTIL1.getHBaseCluster().getRegionServerThreads().size();<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // for each RS, create an empty wal with same walGroupId<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> final List<Path> emptyWalPaths = new ArrayList<>();<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> long ts = System.currentTimeMillis();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> for (int i = 0; i < numRs; i++) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> RegionInfo regionInfo =<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> UTIL1.getHBaseCluster().getRegions(tableName.getName()).get(0).getRegionInfo();<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> WAL wal = UTIL1.getHBaseCluster().getRegionServer(i).getWAL(regionInfo);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> Path currentWalPath = AbstractFSWALProvider.getCurrentFileName(wal);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> appendEntriesToWal(numOfEntriesToReplicate, wal);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> wal.rollWriter();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> String walGroupId = AbstractFSWALProvider.getWALPrefixFromWALName(currentWalPath.getName());<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> Path emptyWalPath = new Path(UTIL1.getDefaultRootDirPath(), walGroupId + "." + ts);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> UTIL1.getTestFileSystem().create(emptyWalPath).close();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> emptyWalPaths.add(emptyWalPath);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> injectEmptyWAL(numRs, emptyWalPaths);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // There should be three WALs in queue<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> // 1. empty WAL<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // 2. non empty WAL<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // 3. live WAL<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> //verifyNumberOfLogsInQueue(3, numRs);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> hbaseAdmin.enableReplicationPeer(PEER_ID2);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> // ReplicationSource should advance past the empty wal, or else the test will fail<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> waitForLogAdvance(numRs);<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> // Now we should expect numOfEntriesToReplicate entries<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // replicated from each region server. This makes sure we didn't loose data<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> // from any previous batch when we encounter EOF exception for empty file.<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> Assert.assertEquals("Replicated entries are not correct", numOfEntriesToReplicate * numRs,<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> replicatedEntries.size());<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> // We expect just one batch of replication which will<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // be from when we handle the EOF exception.<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> Assert.assertEquals("Replicated batches are not correct", 1, replicateCount.intValue());<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> verifyNumberOfLogsInQueue(1, numRs);<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> // we're now writing to the new wal<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> // if everything works, the source should've stopped reading from the empty wal, and start<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> // replicating from the new wal<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> runSimplePutDeleteTest();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> rollWalsAndWaitForDeque(numRs);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> /**<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * Test empty WAL along with non empty WALs in the same batch. This test is to make sure<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * when we see the empty WAL and handle the EOF exception, we are able to proceed<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> * with next batch and replicate it properly without missing data.<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> *<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> * @throws Exception throws any exception<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> */<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> @Test<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> public void testReplicationOfEmptyWALFollowedByNonEmptyWAL() throws Exception {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // Disable the replication peer to accumulate the non empty WAL followed by empty WAL<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> hbaseAdmin.disableReplicationPeer(PEER_ID2);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> int numOfEntriesToReplicate = 20;<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> final int numRs = UTIL1.getHBaseCluster().getRegionServerThreads().size();<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // for each RS, create an empty wal with same walGroupId<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> final List<Path> emptyWalPaths = new ArrayList<>();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> long ts = System.currentTimeMillis();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> WAL wal = null;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> for (int i = 0; i < numRs; i++) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> RegionInfo regionInfo =<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> UTIL1.getHBaseCluster().getRegions(tableName.getName()).get(0).getRegionInfo();<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> wal = UTIL1.getHBaseCluster().getRegionServer(i).getWAL(regionInfo);<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> Path currentWalPath = AbstractFSWALProvider.getCurrentFileName(wal);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> appendEntriesToWal(numOfEntriesToReplicate, wal);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> String walGroupId = AbstractFSWALProvider.getWALPrefixFromWALName(currentWalPath.getName());<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> Path emptyWalPath = new Path(UTIL1.getDataTestDir(), walGroupId + "." + ts);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> UTIL1.getTestFileSystem().create(emptyWalPath).close();<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> emptyWalPaths.add(emptyWalPath);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> injectEmptyWAL(numRs, emptyWalPaths);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> // roll the WAL now<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> for (int i = 0; i < numRs; i++) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> wal.rollWriter();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> hbaseAdmin.enableReplicationPeer(PEER_ID2);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> // ReplicationSource should advance past the empty wal, or else the test will fail<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> waitForLogAdvance(numRs);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // Now we should expect numOfEntriesToReplicate entries<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> // replicated from each region server. This makes sure we didn't loose data<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> // from any previous batch when we encounter EOF exception for empty file.<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> Assert.assertEquals("Replicated entries are not correct", numOfEntriesToReplicate * numRs,<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> replicatedEntries.size());<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> // We expect just one batch of replication to be shipped which will<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> // for non empty WAL<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> Assert.assertEquals("Replicated batches are not correct", 1, replicateCount.get());<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> verifyNumberOfLogsInQueue(1, numRs);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> // we're now writing to the new wal<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> // if everything works, the source should've stopped reading from the empty wal, and start<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> // replicating from the new wal<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> runSimplePutDeleteTest();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> rollWalsAndWaitForDeque(numRs);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> /**<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> * This test make sure we replicate all the enties from the non empty WALs which<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * are surrounding the empty WALs<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> *<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> * @throws Exception throws exception<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> */<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> @Test<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> public void testReplicationOfEmptyWALSurroundedNonEmptyWAL() throws Exception {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> // Disable the replication peer to accumulate the non empty WAL followed by empty WAL<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> hbaseAdmin.disableReplicationPeer(PEER_ID2);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> int numOfEntriesToReplicate = 20;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span><a name="line.278"></a> |
| <span class="sourceLineNo">279</span> final int numRs = UTIL1.getHBaseCluster().getRegionServerThreads().size();<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> // for each RS, create an empty wal with same walGroupId<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> final List<Path> emptyWalPaths = new ArrayList<>();<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> long ts = System.currentTimeMillis();<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> WAL wal = null;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> for (int i = 0; i < numRs; i++) {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> RegionInfo regionInfo =<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> UTIL1.getHBaseCluster().getRegions(tableName.getName()).get(0).getRegionInfo();<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> wal = UTIL1.getHBaseCluster().getRegionServer(i).getWAL(regionInfo);<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> Path currentWalPath = AbstractFSWALProvider.getCurrentFileName(wal);<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> appendEntriesToWal(numOfEntriesToReplicate, wal);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> wal.rollWriter();<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> String walGroupId = AbstractFSWALProvider.getWALPrefixFromWALName(currentWalPath.getName());<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> Path emptyWalPath = new Path(UTIL1.getDataTestDir(), walGroupId + "." + ts);<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> UTIL1.getTestFileSystem().create(emptyWalPath).close();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> emptyWalPaths.add(emptyWalPath);<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> injectEmptyWAL(numRs, emptyWalPaths);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span><a name="line.298"></a> |
| <span class="sourceLineNo">299</span> // roll the WAL again with some entries<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> for (int i = 0; i < numRs; i++) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> appendEntriesToWal(numOfEntriesToReplicate, wal);<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> wal.rollWriter();<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> hbaseAdmin.enableReplicationPeer(PEER_ID2);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> // ReplicationSource should advance past the empty wal, or else the test will fail<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> waitForLogAdvance(numRs);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> // Now we should expect numOfEntriesToReplicate entries<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> // replicated from each region server. This makes sure we didn't loose data<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> // from any previous batch when we encounter EOF exception for empty file.<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> Assert.assertEquals("Replicated entries are not correct", numOfEntriesToReplicate * numRs * 2,<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> replicatedEntries.size());<a name="line.313"></a> |
| <span class="sourceLineNo">314</span><a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // We expect two batch of replication to be shipped which will<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> // for non empty WAL<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> Assert.assertEquals("Replicated batches are not correct", 2, replicateCount.get());<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> verifyNumberOfLogsInQueue(1, numRs);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> // we're now writing to the new wal<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> // if everything works, the source should've stopped reading from the empty wal, and start<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> // replicating from the new wal<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> runSimplePutDeleteTest();<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> rollWalsAndWaitForDeque(numRs);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span><a name="line.325"></a> |
| <span class="sourceLineNo">326</span> // inject our empty wal into the replication queue, and then roll the original wal, which<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // enqueues a new wal behind our empty wal. We must roll the wal here as now we use the WAL to<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> // determine if the file being replicated currently is still opened for write, so just inject a<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // new wal to the replication queue does not mean the previous file is closed.<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> private void injectEmptyWAL(int numRs, List<Path> emptyWalPaths) throws IOException {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> for (int i = 0; i < numRs; i++) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> HRegionServer hrs = UTIL1.getHBaseCluster().getRegionServer(i);<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> Replication replicationService = (Replication) hrs.getReplicationSourceService();<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> replicationService.getReplicationManager().preLogRoll(emptyWalPaths.get(i));<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> replicationService.getReplicationManager().postLogRoll(emptyWalPaths.get(i));<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> RegionInfo regionInfo =<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> UTIL1.getHBaseCluster().getRegions(htable1.getName()).get(0).getRegionInfo();<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> WAL wal = hrs.getWAL(regionInfo);<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> wal.rollWriter(true);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span><a name="line.342"></a> |
| <span class="sourceLineNo">343</span> protected WALKeyImpl getWalKeyImpl() {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> return new WALKeyImpl(info.getEncodedNameAsBytes(), tableName, 0, mvcc, scopes);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span><a name="line.346"></a> |
| <span class="sourceLineNo">347</span> // Roll the WAL and wait for it to get deque from the log queue<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> private void rollWalsAndWaitForDeque(int numRs) throws IOException {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> RegionInfo regionInfo =<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> UTIL1.getHBaseCluster().getRegions(tableName.getName()).get(0).getRegionInfo();<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> for (int i = 0; i < numRs; i++) {<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> WAL wal = UTIL1.getHBaseCluster().getRegionServer(i).getWAL(regionInfo);<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> wal.rollWriter();<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> }<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> waitForLogAdvance(numRs);<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> }<a name="line.356"></a> |
| <span class="sourceLineNo">357</span><a name="line.357"></a> |
| <span class="sourceLineNo">358</span> private void appendEntriesToWal(int numEntries, WAL wal) throws IOException {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> long txId = -1;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> for (int i = 0; i < numEntries; i++) {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> byte[] b = Bytes.toBytes(Integer.toString(i));<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> KeyValue kv = new KeyValue(b, famName, b);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> WALEdit edit = new WALEdit();<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> edit.add(kv);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> txId = wal.appendData(info, getWalKeyImpl(), edit);<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> }<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> wal.sync(txId);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> }<a name="line.368"></a> |
| <span class="sourceLineNo">369</span>}<a name="line.369"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
