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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;<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.assertNotNull;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.fail;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.io.InputStream;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.lang.ref.SoftReference;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Collections;<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 org.apache.hadoop.fs.FSDataInputStream;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FileSystem;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FilterFileSystem;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.fs.Path;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.fs.PositionedReadable;<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.HBaseTestingUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.HConstants;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.SingleProcessHBaseCluster;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.TableName;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Table;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.fs.HFileSystem;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.io.hfile.HFileContext;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.io.hfile.HFileScanner;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.testclassification.RegionServerTests;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.junit.Assume;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.junit.ClassRule;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.junit.Rule;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.junit.Test;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.junit.experimental.categories.Category;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.junit.rules.TestName;<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>/**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * Test cases that ensure that file system level errors are bubbled up appropriately to clients,<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * rather than swallowed.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>@Category({ RegionServerTests.class, LargeTests.class })<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>public class TestFSErrorsExposed {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> @ClassRule<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> HBaseClassTestRule.forClass(TestFSErrorsExposed.class);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private static final Logger LOG = LoggerFactory.getLogger(TestFSErrorsExposed.class);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> HBaseTestingUtil util = new HBaseTestingUtil();<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @Rule<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public TestName name = new TestName();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> /**<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * Injects errors into the pread calls of an on-disk file, and makes sure those bubble up to the<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * HFile scanner<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 testHFileScannerThrowsErrors() throws IOException {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> Path hfilePath = new Path(<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> new Path(util.getDataTestDir("internalScannerExposesErrors"), "regionname"), "familyname");<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> HFileSystem hfs = (HFileSystem) util.getTestFileSystem();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> FaultyFileSystem faultyfs = new FaultyFileSystem(hfs.getBackingFs());<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> FileSystem fs = new HFileSystem(faultyfs);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> CacheConfig cacheConf = new CacheConfig(util.getConfiguration());<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> HFileContext meta = new HFileContextBuilder().withBlockSize(2 * 1024).build();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> StoreFileWriter writer = new StoreFileWriter.Builder(util.getConfiguration(), cacheConf, hfs)<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> .withOutputDir(hfilePath).withFileContext(meta).build();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> TestHStoreFile.writeStoreFile(writer, Bytes.toBytes("cf"), Bytes.toBytes("qual"));<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> HStoreFile sf = new HStoreFile(fs, writer.getPath(), util.getConfiguration(), cacheConf,<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> BloomType.NONE, true);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> sf.initReader();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> StoreFileReader reader = sf.getReader();<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> HFileScanner scanner = reader.getScanner(false, true);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> FaultyInputStream inStream = faultyfs.inStreams.get(0).get();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> assertNotNull(inStream);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> scanner.seekTo();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // Do at least one successful read<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> assertTrue(scanner.next());<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> faultyfs.startFaults();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> try {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> int scanned = 0;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> while (scanner.next()) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> scanned++;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> fail("Scanner didn't throw after faults injected");<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> } catch (IOException ioe) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> LOG.info("Got expected exception", ioe);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> assertTrue(ioe.getMessage().contains("Fault"));<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> reader.close(true); // end of test so evictOnClose<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<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> * Injects errors into the pread calls of an on-disk file, and makes sure those bubble up to the<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * StoreFileScanner<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> */<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> @Test<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> public void testStoreFileScannerThrowsErrors() throws IOException {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> Path hfilePath = new Path(<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> new Path(util.getDataTestDir("internalScannerExposesErrors"), "regionname"), "familyname");<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> HFileSystem hfs = (HFileSystem) util.getTestFileSystem();<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> FaultyFileSystem faultyfs = new FaultyFileSystem(hfs.getBackingFs());<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> HFileSystem fs = new HFileSystem(faultyfs);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> CacheConfig cacheConf = new CacheConfig(util.getConfiguration());<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> HFileContext meta = new HFileContextBuilder().withBlockSize(2 * 1024).build();<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> StoreFileWriter writer = new StoreFileWriter.Builder(util.getConfiguration(), cacheConf, hfs)<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> .withOutputDir(hfilePath).withFileContext(meta).build();<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> TestHStoreFile.writeStoreFile(writer, Bytes.toBytes("cf"), Bytes.toBytes("qual"));<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> HStoreFile sf = new HStoreFile(fs, writer.getPath(), util.getConfiguration(), cacheConf,<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> BloomType.NONE, true);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> List<StoreFileScanner> scanners = StoreFileScanner.getScannersForStoreFiles(<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> Collections.singletonList(sf), false, true, false, false,<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> // 0 is passed as readpoint because this test operates on HStoreFile directly<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> 0);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> KeyValueScanner scanner = scanners.get(0);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> FaultyInputStream inStream = faultyfs.inStreams.get(0).get();<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> assertNotNull(inStream);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> scanner.seek(KeyValue.LOWESTKEY);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // Do at least one successful read<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> assertNotNull(scanner.next());<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> faultyfs.startFaults();<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> try {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> int scanned = 0;<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> while (scanner.next() != null) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> scanned++;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> fail("Scanner didn't throw after faults injected");<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> } catch (IOException ioe) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> LOG.info("Got expected exception", ioe);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> assertTrue(ioe.getMessage().contains("Could not iterate"));<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> scanner.close();<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> /**<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> * Cluster test which starts a region server with a region, then removes the data from HDFS<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> * underneath it, and ensures that errors are bubbled to the client.<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> */<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> @Test<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> public void testFullSystemBubblesFSErrors() throws Exception {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // We won't have an error if the datanode is not there if we use short circuit<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> // it's a known 'feature'.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> Assume.assumeTrue(!util.isReadShortCircuitOn());<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> try {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // Make it fail faster.<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> util.getConfiguration().setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 1);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> util.getConfiguration().setInt(HConstants.HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD, 90000);<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> util.getConfiguration().setInt("hbase.lease.recovery.timeout", 10000);<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> util.getConfiguration().setInt("hbase.lease.recovery.dfs.timeout", 1000);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> util.startMiniCluster(1);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> byte[] fam = Bytes.toBytes("fam");<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> Admin admin = util.getAdmin();<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> TableDescriptor tableDescriptor =<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> TableDescriptorBuilder.newBuilder(tableName).setColumnFamily(ColumnFamilyDescriptorBuilder<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> .newBuilder(fam).setMaxVersions(1).setBlockCacheEnabled(false).build()).build();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> admin.createTable(tableDescriptor);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> // Make a new Configuration so it makes a new connection that has the<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // above configuration on it; else we use the old one w/ 10 as default.<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> try (Table table = util.getConnection().getTable(tableName)) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> // Load some data<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> util.loadTable(table, fam, false);<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> util.flush();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> util.countRows(table);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> // Kill the DFS cluster<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> util.getDFSCluster().shutdownDataNodes();<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> try {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> util.countRows(table);<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> fail("Did not fail to count after removing data");<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> } catch (Exception e) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> LOG.info("Got expected error", e);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> assertTrue(e.getMessage().contains("Could not seek"));<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // Restart data nodes so that HBase can shut down cleanly.<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> util.getDFSCluster().restartDataNodes();<a name="line.220"></a> |
| <span class="sourceLineNo">221</span><a name="line.221"></a> |
| <span class="sourceLineNo">222</span> } finally {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> SingleProcessHBaseCluster cluster = util.getMiniHBaseCluster();<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> if (cluster != null) cluster.killAll();<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> util.shutdownMiniCluster();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> static class FaultyFileSystem extends FilterFileSystem {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> List<SoftReference<FaultyInputStream>> inStreams = new ArrayList<>();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span><a name="line.231"></a> |
| <span class="sourceLineNo">232</span> public FaultyFileSystem(FileSystem testFileSystem) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> super(testFileSystem);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> @Override<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> public FSDataInputStream open(Path p, int bufferSize) throws IOException {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> FSDataInputStream orig = fs.open(p, bufferSize);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> FaultyInputStream faulty = new FaultyInputStream(orig);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> inStreams.add(new SoftReference<>(faulty));<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> return faulty;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span><a name="line.243"></a> |
| <span class="sourceLineNo">244</span> /**<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * Starts to simulate faults on all streams opened so far<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> */<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> public void startFaults() {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> for (SoftReference<FaultyInputStream> is : inStreams) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> is.get().startFaults();<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span><a name="line.253"></a> |
| <span class="sourceLineNo">254</span> static class FaultyInputStream extends FSDataInputStream {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> boolean faultsStarted = false;<a name="line.255"></a> |
| <span class="sourceLineNo">256</span><a name="line.256"></a> |
| <span class="sourceLineNo">257</span> public FaultyInputStream(InputStream in) throws IOException {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> super(in);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> public void startFaults() {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> faultsStarted = true;<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span><a name="line.264"></a> |
| <span class="sourceLineNo">265</span> @Override<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> public int read(long position, byte[] buffer, int offset, int length) throws IOException {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> injectFault();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return ((PositionedReadable) in).read(position, buffer, offset, length);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> private void injectFault() throws IOException {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> if (faultsStarted) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> throw new IOException("Fault injected");<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span>}<a name="line.277"></a> |
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| </div> |
| </body> |
| </html> |
