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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 java.io.FileNotFoundException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.NavigableMap;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.TreeMap;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.fs.FileSystem;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.Path;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HConstants;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.MiniHBaseCluster;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.ServerName;<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.Admin;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Put;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Table;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.log.HBaseMarkers;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl;<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.Bytes;<a name="line.47"></a>
<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.50"></a>
<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.51"></a>
<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.52"></a>
<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.wal.WALKeyImpl;<a name="line.53"></a>
<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.wal.WALSplitter;<a name="line.54"></a>
<span class="sourceLineNo">055</span>import org.apache.hadoop.hdfs.MiniDFSCluster;<a name="line.55"></a>
<span class="sourceLineNo">056</span>import org.junit.After;<a name="line.56"></a>
<span class="sourceLineNo">057</span>import org.junit.Assert;<a name="line.57"></a>
<span class="sourceLineNo">058</span>import org.junit.Before;<a name="line.58"></a>
<span class="sourceLineNo">059</span>import org.junit.BeforeClass;<a name="line.59"></a>
<span class="sourceLineNo">060</span>import org.junit.ClassRule;<a name="line.60"></a>
<span class="sourceLineNo">061</span>import org.junit.Test;<a name="line.61"></a>
<span class="sourceLineNo">062</span>import org.junit.experimental.categories.Category;<a name="line.62"></a>
<span class="sourceLineNo">063</span>import org.slf4j.Logger;<a name="line.63"></a>
<span class="sourceLineNo">064</span>import org.slf4j.LoggerFactory;<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> * Tests for conditions that should trigger RegionServer aborts when<a name="line.67"></a>
<span class="sourceLineNo">068</span> * rolling the current WAL fails.<a name="line.68"></a>
<span class="sourceLineNo">069</span> */<a name="line.69"></a>
<span class="sourceLineNo">070</span>@Category({RegionServerTests.class, MediumTests.class})<a name="line.70"></a>
<span class="sourceLineNo">071</span>public class TestLogRollAbort {<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span> @ClassRule<a name="line.73"></a>
<span class="sourceLineNo">074</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.74"></a>
<span class="sourceLineNo">075</span> HBaseClassTestRule.forClass(TestLogRollAbort.class);<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span> private static final Logger LOG = LoggerFactory.getLogger(AbstractTestLogRolling.class);<a name="line.77"></a>
<span class="sourceLineNo">078</span> private static MiniDFSCluster dfsCluster;<a name="line.78"></a>
<span class="sourceLineNo">079</span> private static Admin admin;<a name="line.79"></a>
<span class="sourceLineNo">080</span> private static MiniHBaseCluster cluster;<a name="line.80"></a>
<span class="sourceLineNo">081</span> protected final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.81"></a>
<span class="sourceLineNo">082</span><a name="line.82"></a>
<span class="sourceLineNo">083</span> /* For the split-then-roll test */<a name="line.83"></a>
<span class="sourceLineNo">084</span> private static final Path HBASEDIR = new Path("/hbase");<a name="line.84"></a>
<span class="sourceLineNo">085</span> private static final Path HBASELOGDIR = new Path("/hbaselog");<a name="line.85"></a>
<span class="sourceLineNo">086</span> private static final Path OLDLOGDIR = new Path(HBASELOGDIR, HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span> // Need to override this setup so we can edit the config before it gets sent<a name="line.88"></a>
<span class="sourceLineNo">089</span> // to the HDFS &amp; HBase cluster startup.<a name="line.89"></a>
<span class="sourceLineNo">090</span> @BeforeClass<a name="line.90"></a>
<span class="sourceLineNo">091</span> public static void setUpBeforeClass() throws Exception {<a name="line.91"></a>
<span class="sourceLineNo">092</span> // Tweak default timeout values down for faster recovery<a name="line.92"></a>
<span class="sourceLineNo">093</span> TEST_UTIL.getConfiguration().setInt(<a name="line.93"></a>
<span class="sourceLineNo">094</span> "hbase.regionserver.logroll.errors.tolerated", 2);<a name="line.94"></a>
<span class="sourceLineNo">095</span> TEST_UTIL.getConfiguration().setInt("hbase.rpc.timeout", 10 * 1000);<a name="line.95"></a>
<span class="sourceLineNo">096</span><a name="line.96"></a>
<span class="sourceLineNo">097</span> // Increase the amount of time between client retries<a name="line.97"></a>
<span class="sourceLineNo">098</span> TEST_UTIL.getConfiguration().setLong("hbase.client.pause", 5 * 1000);<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> // lower the namenode &amp; datanode heartbeat so the namenode<a name="line.100"></a>
<span class="sourceLineNo">101</span> // quickly detects datanode failures<a name="line.101"></a>
<span class="sourceLineNo">102</span> TEST_UTIL.getConfiguration().setInt("dfs.namenode.heartbeat.recheck-interval", 5000);<a name="line.102"></a>
<span class="sourceLineNo">103</span> TEST_UTIL.getConfiguration().setInt("dfs.heartbeat.interval", 1);<a name="line.103"></a>
<span class="sourceLineNo">104</span> // the namenode might still try to choose the recently-dead datanode<a name="line.104"></a>
<span class="sourceLineNo">105</span> // for a pipeline, so try to a new pipeline multiple times<a name="line.105"></a>
<span class="sourceLineNo">106</span> TEST_UTIL.getConfiguration().setInt("dfs.client.block.write.retries", 10);<a name="line.106"></a>
<span class="sourceLineNo">107</span> TEST_UTIL.getConfiguration().set(WALFactory.WAL_PROVIDER, "filesystem");<a name="line.107"></a>
<span class="sourceLineNo">108</span> }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span> private Configuration conf;<a name="line.110"></a>
<span class="sourceLineNo">111</span> private FileSystem fs;<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span> @Before<a name="line.113"></a>
<span class="sourceLineNo">114</span> public void setUp() throws Exception {<a name="line.114"></a>
<span class="sourceLineNo">115</span> TEST_UTIL.startMiniCluster(2);<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span> cluster = TEST_UTIL.getHBaseCluster();<a name="line.117"></a>
<span class="sourceLineNo">118</span> dfsCluster = TEST_UTIL.getDFSCluster();<a name="line.118"></a>
<span class="sourceLineNo">119</span> admin = TEST_UTIL.getAdmin();<a name="line.119"></a>
<span class="sourceLineNo">120</span> conf = TEST_UTIL.getConfiguration();<a name="line.120"></a>
<span class="sourceLineNo">121</span> fs = TEST_UTIL.getDFSCluster().getFileSystem();<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> // disable region rebalancing (interferes with log watching)<a name="line.123"></a>
<span class="sourceLineNo">124</span> cluster.getMaster().balanceSwitch(false);<a name="line.124"></a>
<span class="sourceLineNo">125</span> CommonFSUtils.setRootDir(conf, HBASEDIR);<a name="line.125"></a>
<span class="sourceLineNo">126</span> CommonFSUtils.setWALRootDir(conf, HBASELOGDIR);<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> @After<a name="line.129"></a>
<span class="sourceLineNo">130</span> public void tearDown() throws Exception {<a name="line.130"></a>
<span class="sourceLineNo">131</span> TEST_UTIL.shutdownMiniCluster();<a name="line.131"></a>
<span class="sourceLineNo">132</span> }<a name="line.132"></a>
<span class="sourceLineNo">133</span><a name="line.133"></a>
<span class="sourceLineNo">134</span> /**<a name="line.134"></a>
<span class="sourceLineNo">135</span> * Tests that RegionServer aborts if we hit an error closing the WAL when<a name="line.135"></a>
<span class="sourceLineNo">136</span> * there are unsynced WAL edits. See HBASE-4282.<a name="line.136"></a>
<span class="sourceLineNo">137</span> */<a name="line.137"></a>
<span class="sourceLineNo">138</span> @Test<a name="line.138"></a>
<span class="sourceLineNo">139</span> public void testRSAbortWithUnflushedEdits() throws Exception {<a name="line.139"></a>
<span class="sourceLineNo">140</span> LOG.info("Starting testRSAbortWithUnflushedEdits()");<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> // When the hbase:meta table can be opened, the region servers are running<a name="line.142"></a>
<span class="sourceLineNo">143</span> TEST_UTIL.getConnection().getTable(TableName.META_TABLE_NAME).close();<a name="line.143"></a>
<span class="sourceLineNo">144</span><a name="line.144"></a>
<span class="sourceLineNo">145</span> // Create the test table and open it<a name="line.145"></a>
<span class="sourceLineNo">146</span> TableName tableName = TableName.valueOf(this.getClass().getSimpleName());<a name="line.146"></a>
<span class="sourceLineNo">147</span> TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)<a name="line.147"></a>
<span class="sourceLineNo">148</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(HConstants.CATALOG_FAMILY)).build();<a name="line.148"></a>
<span class="sourceLineNo">149</span><a name="line.149"></a>
<span class="sourceLineNo">150</span> admin.createTable(desc);<a name="line.150"></a>
<span class="sourceLineNo">151</span> Table table = TEST_UTIL.getConnection().getTable(tableName);<a name="line.151"></a>
<span class="sourceLineNo">152</span> try {<a name="line.152"></a>
<span class="sourceLineNo">153</span> HRegionServer server = TEST_UTIL.getRSForFirstRegionInTable(tableName);<a name="line.153"></a>
<span class="sourceLineNo">154</span> WAL log = server.getWAL(null);<a name="line.154"></a>
<span class="sourceLineNo">155</span><a name="line.155"></a>
<span class="sourceLineNo">156</span> Put p = new Put(Bytes.toBytes("row2001"));<a name="line.156"></a>
<span class="sourceLineNo">157</span> p.addColumn(HConstants.CATALOG_FAMILY, Bytes.toBytes("col"), Bytes.toBytes(2001));<a name="line.157"></a>
<span class="sourceLineNo">158</span> table.put(p);<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> log.sync();<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span> p = new Put(Bytes.toBytes("row2002"));<a name="line.162"></a>
<span class="sourceLineNo">163</span> p.addColumn(HConstants.CATALOG_FAMILY, Bytes.toBytes("col"), Bytes.toBytes(2002));<a name="line.163"></a>
<span class="sourceLineNo">164</span> table.put(p);<a name="line.164"></a>
<span class="sourceLineNo">165</span><a name="line.165"></a>
<span class="sourceLineNo">166</span> dfsCluster.restartDataNodes();<a name="line.166"></a>
<span class="sourceLineNo">167</span> LOG.info("Restarted datanodes");<a name="line.167"></a>
<span class="sourceLineNo">168</span><a name="line.168"></a>
<span class="sourceLineNo">169</span> try {<a name="line.169"></a>
<span class="sourceLineNo">170</span> log.rollWriter(true);<a name="line.170"></a>
<span class="sourceLineNo">171</span> } catch (FailedLogCloseException flce) {<a name="line.171"></a>
<span class="sourceLineNo">172</span> // Expected exception. We used to expect that there would be unsynced appends but this<a name="line.172"></a>
<span class="sourceLineNo">173</span> // not reliable now that sync plays a roll in wall rolling. The above puts also now call<a name="line.173"></a>
<span class="sourceLineNo">174</span> // sync.<a name="line.174"></a>
<span class="sourceLineNo">175</span> } catch (Throwable t) {<a name="line.175"></a>
<span class="sourceLineNo">176</span> LOG.error(HBaseMarkers.FATAL, "FAILED TEST: Got wrong exception", t);<a name="line.176"></a>
<span class="sourceLineNo">177</span> }<a name="line.177"></a>
<span class="sourceLineNo">178</span> } finally {<a name="line.178"></a>
<span class="sourceLineNo">179</span> table.close();<a name="line.179"></a>
<span class="sourceLineNo">180</span> }<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> /**<a name="line.183"></a>
<span class="sourceLineNo">184</span> * Tests the case where a RegionServer enters a GC pause,<a name="line.184"></a>
<span class="sourceLineNo">185</span> * comes back online after the master declared it dead and started to split.<a name="line.185"></a>
<span class="sourceLineNo">186</span> * Want log rolling after a master split to fail. See HBASE-2312.<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 testLogRollAfterSplitStart() throws IOException {<a name="line.189"></a>
<span class="sourceLineNo">190</span> LOG.info("Verify wal roll after split starts will fail.");<a name="line.190"></a>
<span class="sourceLineNo">191</span> String logName = ServerName.valueOf("testLogRollAfterSplitStart",<a name="line.191"></a>
<span class="sourceLineNo">192</span> 16010, System.currentTimeMillis()).toString();<a name="line.192"></a>
<span class="sourceLineNo">193</span> Path thisTestsDir = new Path(HBASELOGDIR, AbstractFSWALProvider.getWALDirectoryName(logName));<a name="line.193"></a>
<span class="sourceLineNo">194</span> final WALFactory wals = new WALFactory(conf, logName);<a name="line.194"></a>
<span class="sourceLineNo">195</span><a name="line.195"></a>
<span class="sourceLineNo">196</span> try {<a name="line.196"></a>
<span class="sourceLineNo">197</span> // put some entries in an WAL<a name="line.197"></a>
<span class="sourceLineNo">198</span> TableName tableName =<a name="line.198"></a>
<span class="sourceLineNo">199</span> TableName.valueOf(this.getClass().getName());<a name="line.199"></a>
<span class="sourceLineNo">200</span> RegionInfo regionInfo = RegionInfoBuilder.newBuilder(tableName).build();<a name="line.200"></a>
<span class="sourceLineNo">201</span> WAL log = wals.getWAL(regionInfo);<a name="line.201"></a>
<span class="sourceLineNo">202</span> MultiVersionConcurrencyControl mvcc = new MultiVersionConcurrencyControl(1);<a name="line.202"></a>
<span class="sourceLineNo">203</span><a name="line.203"></a>
<span class="sourceLineNo">204</span> int total = 20;<a name="line.204"></a>
<span class="sourceLineNo">205</span> for (int i = 0; i &lt; total; i++) {<a name="line.205"></a>
<span class="sourceLineNo">206</span> WALEdit kvs = new WALEdit();<a name="line.206"></a>
<span class="sourceLineNo">207</span> kvs.add(new KeyValue(Bytes.toBytes(i), tableName.getName(), tableName.getName()));<a name="line.207"></a>
<span class="sourceLineNo">208</span> NavigableMap&lt;byte[], Integer&gt; scopes = new TreeMap&lt;&gt;(Bytes.BYTES_COMPARATOR);<a name="line.208"></a>
<span class="sourceLineNo">209</span> scopes.put(Bytes.toBytes("column"), 0);<a name="line.209"></a>
<span class="sourceLineNo">210</span> log.appendData(regionInfo, new WALKeyImpl(regionInfo.getEncodedNameAsBytes(), tableName,<a name="line.210"></a>
<span class="sourceLineNo">211</span> System.currentTimeMillis(), mvcc, scopes), kvs);<a name="line.211"></a>
<span class="sourceLineNo">212</span> }<a name="line.212"></a>
<span class="sourceLineNo">213</span> // Send the data to HDFS datanodes and close the HDFS writer<a name="line.213"></a>
<span class="sourceLineNo">214</span> log.sync();<a name="line.214"></a>
<span class="sourceLineNo">215</span> ((AbstractFSWAL&lt;?&gt;) log).replaceWriter(((FSHLog)log).getOldPath(), null, null);<a name="line.215"></a>
<span class="sourceLineNo">216</span><a name="line.216"></a>
<span class="sourceLineNo">217</span> // code taken from MasterFileSystem.getLogDirs(), which is called from<a name="line.217"></a>
<span class="sourceLineNo">218</span> // MasterFileSystem.splitLog() handles RS shutdowns (as observed by the splitting process)<a name="line.218"></a>
<span class="sourceLineNo">219</span> // rename the directory so a rogue RS doesn't create more WALs<a name="line.219"></a>
<span class="sourceLineNo">220</span> Path rsSplitDir = thisTestsDir.suffix(AbstractFSWALProvider.SPLITTING_EXT);<a name="line.220"></a>
<span class="sourceLineNo">221</span> if (!fs.rename(thisTestsDir, rsSplitDir)) {<a name="line.221"></a>
<span class="sourceLineNo">222</span> throw new IOException("Failed fs.rename for log split: " + thisTestsDir);<a name="line.222"></a>
<span class="sourceLineNo">223</span> }<a name="line.223"></a>
<span class="sourceLineNo">224</span> LOG.debug("Renamed region directory: " + rsSplitDir);<a name="line.224"></a>
<span class="sourceLineNo">225</span><a name="line.225"></a>
<span class="sourceLineNo">226</span> LOG.debug("Processing the old log files.");<a name="line.226"></a>
<span class="sourceLineNo">227</span> WALSplitter.split(HBASELOGDIR, rsSplitDir, OLDLOGDIR, fs, conf, wals);<a name="line.227"></a>
<span class="sourceLineNo">228</span><a name="line.228"></a>
<span class="sourceLineNo">229</span> LOG.debug("Trying to roll the WAL.");<a name="line.229"></a>
<span class="sourceLineNo">230</span> try {<a name="line.230"></a>
<span class="sourceLineNo">231</span> log.rollWriter();<a name="line.231"></a>
<span class="sourceLineNo">232</span> Assert.fail("rollWriter() did not throw any exception.");<a name="line.232"></a>
<span class="sourceLineNo">233</span> } catch (IOException ioe) {<a name="line.233"></a>
<span class="sourceLineNo">234</span> if (ioe.getCause() instanceof FileNotFoundException) {<a name="line.234"></a>
<span class="sourceLineNo">235</span> LOG.info("Got the expected exception: ", ioe.getCause());<a name="line.235"></a>
<span class="sourceLineNo">236</span> } else {<a name="line.236"></a>
<span class="sourceLineNo">237</span> Assert.fail("Unexpected exception: " + ioe);<a name="line.237"></a>
<span class="sourceLineNo">238</span> }<a name="line.238"></a>
<span class="sourceLineNo">239</span> }<a name="line.239"></a>
<span class="sourceLineNo">240</span> } finally {<a name="line.240"></a>
<span class="sourceLineNo">241</span> wals.close();<a name="line.241"></a>
<span class="sourceLineNo">242</span> if (fs.exists(thisTestsDir)) {<a name="line.242"></a>
<span class="sourceLineNo">243</span> fs.delete(thisTestsDir, true);<a name="line.243"></a>
<span class="sourceLineNo">244</span> }<a name="line.244"></a>
<span class="sourceLineNo">245</span> }<a name="line.245"></a>
<span class="sourceLineNo">246</span> }<a name="line.246"></a>
<span class="sourceLineNo">247</span>}<a name="line.247"></a>
</pre>
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