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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. 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class="sourceLineNo">057</span>import org.slf4j.LoggerFactory;<a name="line.57"></a> +<span class="sourceLineNo">058</span><a name="line.58"></a> +<span class="sourceLineNo">059</span>/**<a name="line.59"></a> +<span class="sourceLineNo">060</span> * Test {@link FSUtils}.<a name="line.60"></a> +<span class="sourceLineNo">061</span> */<a name="line.61"></a> +<span class="sourceLineNo">062</span>@Category({MiscTests.class, MediumTests.class})<a name="line.62"></a> +<span class="sourceLineNo">063</span>public class TestFSUtils {<a name="line.63"></a> +<span class="sourceLineNo">064</span><a name="line.64"></a> +<span class="sourceLineNo">065</span> @ClassRule<a name="line.65"></a> +<span class="sourceLineNo">066</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.66"></a> +<span class="sourceLineNo">067</span> HBaseClassTestRule.forClass(TestFSUtils.class);<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> private static final Logger LOG = LoggerFactory.getLogger(TestFSUtils.class);<a name="line.69"></a> +<span class="sourceLineNo">070</span><a name="line.70"></a> +<span class="sourceLineNo">071</span> private HBaseTestingUtility htu;<a name="line.71"></a> +<span class="sourceLineNo">072</span> private FileSystem fs;<a name="line.72"></a> +<span class="sourceLineNo">073</span> private Configuration conf;<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> @Before<a name="line.75"></a> +<span class="sourceLineNo">076</span> public void setUp() throws IOException {<a name="line.76"></a> +<span class="sourceLineNo">077</span> htu = new HBaseTestingUtility();<a name="line.77"></a> +<span class="sourceLineNo">078</span> fs = htu.getTestFileSystem();<a name="line.78"></a> +<span class="sourceLineNo">079</span> conf = htu.getConfiguration();<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> @Test public void testIsHDFS() throws Exception {<a name="line.82"></a> +<span class="sourceLineNo">083</span> assertFalse(FSUtils.isHDFS(conf));<a name="line.83"></a> +<span class="sourceLineNo">084</span> MiniDFSCluster cluster = null;<a name="line.84"></a> +<span class="sourceLineNo">085</span> try {<a name="line.85"></a> +<span class="sourceLineNo">086</span> cluster = htu.startMiniDFSCluster(1);<a name="line.86"></a> +<span class="sourceLineNo">087</span> assertTrue(FSUtils.isHDFS(conf));<a name="line.87"></a> +<span class="sourceLineNo">088</span> } finally {<a name="line.88"></a> +<span class="sourceLineNo">089</span> if (cluster != null) cluster.shutdown();<a name="line.89"></a> +<span class="sourceLineNo">090</span> }<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> private void WriteDataToHDFS(FileSystem fs, Path file, int dataSize)<a name="line.93"></a> +<span class="sourceLineNo">094</span> throws Exception {<a name="line.94"></a> +<span class="sourceLineNo">095</span> FSDataOutputStream out = fs.create(file);<a name="line.95"></a> +<span class="sourceLineNo">096</span> byte [] data = new byte[dataSize];<a name="line.96"></a> +<span class="sourceLineNo">097</span> out.write(data, 0, dataSize);<a name="line.97"></a> +<span class="sourceLineNo">098</span> out.close();<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> @Test public void testcomputeHDFSBlocksDistribution() throws Exception {<a name="line.101"></a> +<span class="sourceLineNo">102</span> final int DEFAULT_BLOCK_SIZE = 1024;<a name="line.102"></a> +<span class="sourceLineNo">103</span> conf.setLong("dfs.blocksize", DEFAULT_BLOCK_SIZE);<a name="line.103"></a> +<span class="sourceLineNo">104</span> MiniDFSCluster cluster = null;<a name="line.104"></a> +<span class="sourceLineNo">105</span> Path testFile = null;<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> try {<a name="line.107"></a> +<span class="sourceLineNo">108</span> // set up a cluster with 3 nodes<a name="line.108"></a> +<span class="sourceLineNo">109</span> String hosts[] = new String[] { "host1", "host2", "host3" };<a name="line.109"></a> +<span class="sourceLineNo">110</span> cluster = htu.startMiniDFSCluster(hosts);<a name="line.110"></a> +<span class="sourceLineNo">111</span> cluster.waitActive();<a name="line.111"></a> +<span class="sourceLineNo">112</span> FileSystem fs = cluster.getFileSystem();<a name="line.112"></a> +<span class="sourceLineNo">113</span><a name="line.113"></a> +<span class="sourceLineNo">114</span> // create a file with two blocks<a name="line.114"></a> +<span class="sourceLineNo">115</span> testFile = new Path("/test1.txt");<a name="line.115"></a> +<span class="sourceLineNo">116</span> WriteDataToHDFS(fs, testFile, 2*DEFAULT_BLOCK_SIZE);<a name="line.116"></a> +<span class="sourceLineNo">117</span><a name="line.117"></a> +<span class="sourceLineNo">118</span> // given the default replication factor is 3, the same as the number of<a name="line.118"></a> +<span class="sourceLineNo">119</span> // datanodes; the locality index for each host should be 100%,<a name="line.119"></a> +<span class="sourceLineNo">120</span> // or getWeight for each host should be the same as getUniqueBlocksWeights<a name="line.120"></a> +<span class="sourceLineNo">121</span> final long maxTime = System.currentTimeMillis() + 2000;<a name="line.121"></a> +<span class="sourceLineNo">122</span> boolean ok;<a name="line.122"></a> +<span class="sourceLineNo">123</span> do {<a name="line.123"></a> +<span class="sourceLineNo">124</span> ok = true;<a name="line.124"></a> +<span class="sourceLineNo">125</span> FileStatus status = fs.getFileStatus(testFile);<a name="line.125"></a> +<span class="sourceLineNo">126</span> HDFSBlocksDistribution blocksDistribution =<a name="line.126"></a> +<span class="sourceLineNo">127</span> FSUtils.computeHDFSBlocksDistribution(fs, status, 0, status.getLen());<a name="line.127"></a> +<span class="sourceLineNo">128</span> long uniqueBlocksTotalWeight =<a name="line.128"></a> +<span class="sourceLineNo">129</span> blocksDistribution.getUniqueBlocksTotalWeight();<a name="line.129"></a> +<span class="sourceLineNo">130</span> for (String host : hosts) {<a name="line.130"></a> +<span class="sourceLineNo">131</span> long weight = blocksDistribution.getWeight(host);<a name="line.131"></a> +<span class="sourceLineNo">132</span> ok = (ok && uniqueBlocksTotalWeight == weight);<a name="line.132"></a> +<span class="sourceLineNo">133</span> }<a name="line.133"></a> +<span class="sourceLineNo">134</span> } while (!ok && System.currentTimeMillis() < maxTime);<a name="line.134"></a> +<span class="sourceLineNo">135</span> assertTrue(ok);<a name="line.135"></a> +<span class="sourceLineNo">136</span> } finally {<a name="line.136"></a> +<span class="sourceLineNo">137</span> htu.shutdownMiniDFSCluster();<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><a name="line.140"></a> +<span class="sourceLineNo">141</span> try {<a name="line.141"></a> +<span class="sourceLineNo">142</span> // set up a cluster with 4 nodes<a name="line.142"></a> +<span class="sourceLineNo">143</span> String hosts[] = new String[] { "host1", "host2", "host3", "host4" };<a name="line.143"></a> +<span class="sourceLineNo">144</span> cluster = htu.startMiniDFSCluster(hosts);<a name="line.144"></a> +<span class="sourceLineNo">145</span> cluster.waitActive();<a name="line.145"></a> +<span class="sourceLineNo">146</span> FileSystem fs = cluster.getFileSystem();<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> // create a file with three blocks<a name="line.148"></a> +<span class="sourceLineNo">149</span> testFile = new Path("/test2.txt");<a name="line.149"></a> +<span class="sourceLineNo">150</span> WriteDataToHDFS(fs, testFile, 3*DEFAULT_BLOCK_SIZE);<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> // given the default replication factor is 3, we will have total of 9<a name="line.152"></a> +<span class="sourceLineNo">153</span> // replica of blocks; thus the host with the highest weight should have<a name="line.153"></a> +<span class="sourceLineNo">154</span> // weight == 3 * DEFAULT_BLOCK_SIZE<a name="line.154"></a> +<span class="sourceLineNo">155</span> final long maxTime = System.currentTimeMillis() + 2000;<a name="line.155"></a> +<span class="sourceLineNo">156</span> long weight;<a name="line.156"></a> +<span class="sourceLineNo">157</span> long uniqueBlocksTotalWeight;<a name="line.157"></a> +<span class="sourceLineNo">158</span> do {<a name="line.158"></a> +<span class="sourceLineNo">159</span> FileStatus status = fs.getFileStatus(testFile);<a name="line.159"></a> +<span class="sourceLineNo">160</span> HDFSBlocksDistribution blocksDistribution =<a name="line.160"></a> +<span class="sourceLineNo">161</span> FSUtils.computeHDFSBlocksDistribution(fs, status, 0, status.getLen());<a name="line.161"></a> +<span class="sourceLineNo">162</span> uniqueBlocksTotalWeight = blocksDistribution.getUniqueBlocksTotalWeight();<a name="line.162"></a> +<span class="sourceLineNo">163</span><a name="line.163"></a> +<span class="sourceLineNo">164</span> String tophost = blocksDistribution.getTopHosts().get(0);<a name="line.164"></a> +<span class="sourceLineNo">165</span> weight = blocksDistribution.getWeight(tophost);<a name="line.165"></a> +<span class="sourceLineNo">166</span><a name="line.166"></a> +<span class="sourceLineNo">167</span> // NameNode is informed asynchronously, so we may have a delay. See HBASE-6175<a name="line.167"></a> +<span class="sourceLineNo">168</span> } while (uniqueBlocksTotalWeight != weight && System.currentTimeMillis() < maxTime);<a name="line.168"></a> +<span class="sourceLineNo">169</span> assertTrue(uniqueBlocksTotalWeight == weight);<a name="line.169"></a> +<span class="sourceLineNo">170</span><a name="line.170"></a> +<span class="sourceLineNo">171</span> } finally {<a name="line.171"></a> +<span class="sourceLineNo">172</span> htu.shutdownMiniDFSCluster();<a name="line.172"></a> +<span class="sourceLineNo">173</span> }<a name="line.173"></a> +<span class="sourceLineNo">174</span><a name="line.174"></a> +<span class="sourceLineNo">175</span><a name="line.175"></a> +<span class="sourceLineNo">176</span> try {<a name="line.176"></a> +<span class="sourceLineNo">177</span> // set up a cluster with 4 nodes<a name="line.177"></a> +<span class="sourceLineNo">178</span> String hosts[] = new String[] { "host1", "host2", "host3", "host4" };<a name="line.178"></a> +<span class="sourceLineNo">179</span> cluster = htu.startMiniDFSCluster(hosts);<a name="line.179"></a> +<span class="sourceLineNo">180</span> cluster.waitActive();<a name="line.180"></a> +<span class="sourceLineNo">181</span> FileSystem fs = cluster.getFileSystem();<a name="line.181"></a> +<span class="sourceLineNo">182</span><a name="line.182"></a> +<span class="sourceLineNo">183</span> // create a file with one block<a name="line.183"></a> +<span class="sourceLineNo">184</span> testFile = new Path("/test3.txt");<a name="line.184"></a> +<span class="sourceLineNo">185</span> WriteDataToHDFS(fs, testFile, DEFAULT_BLOCK_SIZE);<a name="line.185"></a> +<span class="sourceLineNo">186</span><a name="line.186"></a> +<span class="sourceLineNo">187</span> // given the default replication factor is 3, we will have total of 3<a name="line.187"></a> +<span class="sourceLineNo">188</span> // replica of blocks; thus there is one host without weight<a name="line.188"></a> +<span class="sourceLineNo">189</span> final long maxTime = System.currentTimeMillis() + 2000;<a name="line.189"></a> +<span class="sourceLineNo">190</span> HDFSBlocksDistribution blocksDistribution;<a name="line.190"></a> +<span class="sourceLineNo">191</span> do {<a name="line.191"></a> +<span class="sourceLineNo">192</span> FileStatus status = fs.getFileStatus(testFile);<a name="line.192"></a> +<span class="sourceLineNo">193</span> blocksDistribution = FSUtils.computeHDFSBlocksDistribution(fs, status, 0, status.getLen());<a name="line.193"></a> +<span class="sourceLineNo">194</span> // NameNode is informed asynchronously, so we may have a delay. See HBASE-6175<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span> while (blocksDistribution.getTopHosts().size() != 3 && System.currentTimeMillis() < maxTime);<a name="line.196"></a> +<span class="sourceLineNo">197</span> assertEquals("Wrong number of hosts distributing blocks.", 3,<a name="line.197"></a> +<span class="sourceLineNo">198</span> blocksDistribution.getTopHosts().size());<a name="line.198"></a> +<span class="sourceLineNo">199</span> } finally {<a name="line.199"></a> +<span class="sourceLineNo">200</span> htu.shutdownMiniDFSCluster();<a name="line.200"></a> +<span class="sourceLineNo">201</span> }<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span><a name="line.203"></a> +<span class="sourceLineNo">204</span> @Test<a name="line.204"></a> +<span class="sourceLineNo">205</span> public void testVersion() throws DeserializationException, IOException {<a name="line.205"></a> +<span class="sourceLineNo">206</span> final Path rootdir = htu.getDataTestDir();<a name="line.206"></a> +<span class="sourceLineNo">207</span> final FileSystem fs = rootdir.getFileSystem(conf);<a name="line.207"></a> +<span class="sourceLineNo">208</span> assertNull(FSUtils.getVersion(fs, rootdir));<a name="line.208"></a> +<span class="sourceLineNo">209</span> // Write out old format version file. See if we can read it in and convert.<a name="line.209"></a> +<span class="sourceLineNo">210</span> Path versionFile = new Path(rootdir, HConstants.VERSION_FILE_NAME);<a name="line.210"></a> +<span class="sourceLineNo">211</span> FSDataOutputStream s = fs.create(versionFile);<a name="line.211"></a> +<span class="sourceLineNo">212</span> final String version = HConstants.FILE_SYSTEM_VERSION;<a name="line.212"></a> +<span class="sourceLineNo">213</span> s.writeUTF(version);<a name="line.213"></a> +<span class="sourceLineNo">214</span> s.close();<a name="line.214"></a> +<span class="sourceLineNo">215</span> assertTrue(fs.exists(versionFile));<a name="line.215"></a> +<span class="sourceLineNo">216</span> FileStatus [] status = fs.listStatus(versionFile);<a name="line.216"></a> +<span class="sourceLineNo">217</span> assertNotNull(status);<a name="line.217"></a> +<span class="sourceLineNo">218</span> assertTrue(status.length > 0);<a name="line.218"></a> +<span class="sourceLineNo">219</span> String newVersion = FSUtils.getVersion(fs, rootdir);<a name="line.219"></a> +<span class="sourceLineNo">220</span> assertEquals(version.length(), newVersion.length());<a name="line.220"></a> +<span class="sourceLineNo">221</span> assertEquals(version, newVersion);<a name="line.221"></a> +<span class="sourceLineNo">222</span> // File will have been converted. Exercise the pb format<a name="line.222"></a> +<span class="sourceLineNo">223</span> assertEquals(version, FSUtils.getVersion(fs, rootdir));<a name="line.223"></a> +<span class="sourceLineNo">224</span> FSUtils.checkVersion(fs, rootdir, true);<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> @Test<a name="line.227"></a> +<span class="sourceLineNo">228</span> public void testPermMask() throws Exception {<a name="line.228"></a> +<span class="sourceLineNo">229</span> final Path rootdir = htu.getDataTestDir();<a name="line.229"></a> +<span class="sourceLineNo">230</span> final FileSystem fs = rootdir.getFileSystem(conf);<a name="line.230"></a> +<span class="sourceLineNo">231</span> // default fs permission<a name="line.231"></a> +<span class="sourceLineNo">232</span> FsPermission defaultFsPerm = FSUtils.getFilePermissions(fs, conf,<a name="line.232"></a> +<span class="sourceLineNo">233</span> HConstants.DATA_FILE_UMASK_KEY);<a name="line.233"></a> +<span class="sourceLineNo">234</span> // 'hbase.data.umask.enable' is false. We will get default fs permission.<a name="line.234"></a> +<span class="sourceLineNo">235</span> assertEquals(FsPermission.getFileDefault(), defaultFsPerm);<a name="line.235"></a> +<span class="sourceLineNo">236</span><a name="line.236"></a> +<span class="sourceLineNo">237</span> conf.setBoolean(HConstants.ENABLE_DATA_FILE_UMASK, true);<a name="line.237"></a> +<span class="sourceLineNo">238</span> // first check that we don't crash if we don't have perms set<a name="line.238"></a> +<span class="sourceLineNo">239</span> FsPermission defaultStartPerm = FSUtils.getFilePermissions(fs, conf,<a name="line.239"></a> +<span class="sourceLineNo">240</span> HConstants.DATA_FILE_UMASK_KEY);<a name="line.240"></a> +<span class="sourceLineNo">241</span> // default 'hbase.data.umask'is 000, and this umask will be used when<a name="line.241"></a> +<span class="sourceLineNo">242</span> // 'hbase.data.umask.enable' is true.<a name="line.242"></a> +<span class="sourceLineNo">243</span> // Therefore we will not get the real fs default in this case.<a name="line.243"></a> +<span class="sourceLineNo">244</span> // Instead we will get the starting point FULL_RWX_PERMISSIONS<a name="line.244"></a> +<span class="sourceLineNo">245</span> assertEquals(new FsPermission(FSUtils.FULL_RWX_PERMISSIONS), defaultStartPerm);<a name="line.245"></a> +<span class="sourceLineNo">246</span><a name="line.246"></a> +<span class="sourceLineNo">247</span> conf.setStrings(HConstants.DATA_FILE_UMASK_KEY, "077");<a name="line.247"></a> +<span class="sourceLineNo">248</span> // now check that we get the right perms<a name="line.248"></a> +<span class="sourceLineNo">249</span> FsPermission filePerm = FSUtils.getFilePermissions(fs, conf,<a name="line.249"></a> +<span class="sourceLineNo">250</span> HConstants.DATA_FILE_UMASK_KEY);<a name="line.250"></a> +<span class="sourceLineNo">251</span> assertEquals(new FsPermission("700"), filePerm);<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> // then that the correct file is created<a name="line.253"></a> +<span class="sourceLineNo">254</span> Path p = new Path("target" + File.separator + htu.getRandomUUID().toString());<a name="line.254"></a> +<span class="sourceLineNo">255</span> try {<a name="line.255"></a> +<span class="sourceLineNo">256</span> FSDataOutputStream out = FSUtils.create(conf, fs, p, filePerm, null);<a name="line.256"></a> +<span class="sourceLineNo">257</span> out.close();<a name="line.257"></a> +<span class="sourceLineNo">258</span> FileStatus stat = fs.getFileStatus(p);<a name="line.258"></a> +<span class="sourceLineNo">259</span> assertEquals(new FsPermission("700"), stat.getPermission());<a name="line.259"></a> +<span class="sourceLineNo">260</span> // and then cleanup<a name="line.260"></a> +<span class="sourceLineNo">261</span> } finally {<a name="line.261"></a> +<span class="sourceLineNo">262</span> fs.delete(p, 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><a name="line.265"></a> +<span class="sourceLineNo">266</span> @Test<a name="line.266"></a> +<span class="sourceLineNo">267</span> public void testDeleteAndExists() throws Exception {<a name="line.267"></a> +<span class="sourceLineNo">268</span> final Path rootdir = htu.getDataTestDir();<a name="line.268"></a> +<span class="sourceLineNo">269</span> final FileSystem fs = rootdir.getFileSystem(conf);<a name="line.269"></a> +<span class="sourceLineNo">270</span> conf.setBoolean(HConstants.ENABLE_DATA_FILE_UMASK, true);<a name="line.270"></a> +<span class="sourceLineNo">271</span> FsPermission perms = FSUtils.getFilePermissions(fs, conf, HConstants.DATA_FILE_UMASK_KEY);<a name="line.271"></a> +<span class="sourceLineNo">272</span> // then that the correct file is created<a name="line.272"></a> +<span class="sourceLineNo">273</span> String file = htu.getRandomUUID().toString();<a name="line.273"></a> +<span class="sourceLineNo">274</span> Path p = new Path(htu.getDataTestDir(), "temptarget" + File.separator + file);<a name="line.274"></a> +<span class="sourceLineNo">275</span> Path p1 = new Path(htu.getDataTestDir(), "temppath" + File.separator + file);<a name="line.275"></a> +<span class="sourceLineNo">276</span> try {<a name="line.276"></a> +<span class="sourceLineNo">277</span> FSDataOutputStream out = FSUtils.create(conf, fs, p, perms, null);<a name="line.277"></a> +<span class="sourceLineNo">278</span> out.close();<a name="line.278"></a> +<span class="sourceLineNo">279</span> assertTrue("The created file should be present", FSUtils.isExists(fs, p));<a name="line.279"></a> +<span class="sourceLineNo">280</span> // delete the file with recursion as false. Only the file will be deleted.<a name="line.280"></a> +<span class="sourceLineNo">281</span> FSUtils.delete(fs, p, false);<a name="line.281"></a> +<span class="sourceLineNo">282</span> // Create another file<a name="line.282"></a> +<span class="sourceLineNo">283</span> FSDataOutputStream out1 = FSUtils.create(conf, fs, p1, perms, null);<a name="line.283"></a> +<span class="sourceLineNo">284</span> out1.close();<a name="line.284"></a> +<span class="sourceLineNo">285</span> // delete the file with recursion as false. Still the file only will be deleted<a name="line.285"></a> +<span class="sourceLineNo">286</span> FSUtils.delete(fs, p1, true);<a name="line.286"></a> +<span class="sourceLineNo">287</span> assertFalse("The created file should be present", FSUtils.isExists(fs, p1));<a name="line.287"></a> +<span class="sourceLineNo">288</span> // and then cleanup<a name="line.288"></a> +<span class="sourceLineNo">289</span> } finally {<a name="line.289"></a> +<span class="sourceLineNo">290</span> FSUtils.delete(fs, p, true);<a name="line.290"></a> +<span class="sourceLineNo">291</span> FSUtils.delete(fs, p1, true);<a name="line.291"></a> +<span class="sourceLineNo">292</span> }<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span><a name="line.294"></a> +<span class="sourceLineNo">295</span> @Test<a name="line.295"></a> +<span class="sourceLineNo">296</span> public void testFilteredStatusDoesNotThrowOnNotFound() throws Exception {<a name="line.296"></a> +<span class="sourceLineNo">297</span> MiniDFSCluster cluster = htu.startMiniDFSCluster(1);<a name="line.297"></a> +<span class="sourceLineNo">298</span> try {<a name="line.298"></a> +<span class="sourceLineNo">299</span> assertNull(FSUtils.listStatusWithStatusFilter(cluster.getFileSystem(), new Path("definitely/doesn't/exist"), null));<a name="line.299"></a> +<span class="sourceLineNo">300</span> } finally {<a name="line.300"></a> +<span class="sourceLineNo">301</span> cluster.shutdown();<a name="line.301"></a> +<span class="sourceLineNo">302</span> }<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><a name="line.305"></a> +<span class="sourceLineNo">306</span> @Test<a name="line.306"></a> +<span class="sourceLineNo">307</span> public void testRenameAndSetModifyTime() throws Exception {<a name="line.307"></a> +<span class="sourceLineNo">308</span> MiniDFSCluster cluster = htu.startMiniDFSCluster(1);<a name="line.308"></a> +<span class="sourceLineNo">309</span> assertTrue(FSUtils.isHDFS(conf));<a name="line.309"></a> +<span class="sourceLineNo">310</span><a name="line.310"></a> +<span class="sourceLineNo">311</span> FileSystem fs = FileSystem.get(conf);<a name="line.311"></a> +<span class="sourceLineNo">312</span> Path testDir = htu.getDataTestDirOnTestFS("testArchiveFile");<a name="line.312"></a> +<span class="sourceLineNo">313</span><a name="line.313"></a> +<span class="sourceLineNo">314</span> String file = htu.getRandomUUID().toString();<a name="line.314"></a> +<span class="sourceLineNo">315</span> Path p = new Path(testDir, file);<a name="line.315"></a> +<span class="sourceLineNo">316</span><a name="line.316"></a> +<span class="sourceLineNo">317</span> FSDataOutputStream out = fs.create(p);<a name="line.317"></a> +<span class="sourceLineNo">318</span> out.close();<a name="line.318"></a> +<span class="sourceLineNo">319</span> assertTrue("The created file should be present", FSUtils.isExists(fs, p));<a name="line.319"></a> +<span class="sourceLineNo">320</span><a name="line.320"></a> +<span class="sourceLineNo">321</span> long expect = System.currentTimeMillis() + 1000;<a name="line.321"></a> +<span class="sourceLineNo">322</span> assertNotEquals(expect, fs.getFileStatus(p).getModificationTime());<a name="line.322"></a> +<span class="sourceLineNo">323</span><a name="line.323"></a> +<span class="sourceLineNo">324</span> ManualEnvironmentEdge mockEnv = new ManualEnvironmentEdge();<a name="line.324"></a> +<span class="sourceLineNo">325</span> mockEnv.setValue(expect);<a name="line.325"></a> +<span class="sourceLineNo">326</span> EnvironmentEdgeManager.injectEdge(mockEnv);<a name="line.326"></a> +<span class="sourceLineNo">327</span> try {<a name="line.327"></a> +<span class="sourceLineNo">328</span> String dstFile = htu.getRandomUUID().toString();<a name="line.328"></a> +<span class="sourceLineNo">329</span> Path dst = new Path(testDir , dstFile);<a name="line.329"></a> +<span class="sourceLineNo">330</span><a name="line.330"></a> +<span class="sourceLineNo">331</span> assertTrue(FSUtils.renameAndSetModifyTime(fs, p, dst));<a name="line.331"></a> +<span class="sourceLineNo">332</span> assertFalse("The moved file should not be present", FSUtils.isExists(fs, p));<a name="line.332"></a> +<span class="sourceLineNo">333</span> assertTrue("The dst file should be present", FSUtils.isExists(fs, dst));<a name="line.333"></a> +<span class="sourceLineNo">334</span><a name="line.334"></a> +<span class="sourceLineNo">335</span> assertEquals(expect, fs.getFileStatus(dst).getModificationTime());<a name="line.335"></a> +<span class="sourceLineNo">336</span> cluster.shutdown();<a name="line.336"></a> +<span class="sourceLineNo">337</span> } finally {<a name="line.337"></a> +<span class="sourceLineNo">338</span> EnvironmentEdgeManager.reset();<a name="line.338"></a> +<span class="sourceLineNo">339</span> }<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> @Test<a name="line.342"></a> +<span class="sourceLineNo">343</span> public void testSetStoragePolicyDefault() throws Exception {<a name="line.343"></a> +<span class="sourceLineNo">344</span> verifyNoHDFSApiInvocationForDefaultPolicy();<a name="line.344"></a> +<span class="sourceLineNo">345</span> verifyFileInDirWithStoragePolicy(HConstants.DEFAULT_WAL_STORAGE_POLICY);<a name="line.345"></a> +<span class="sourceLineNo">346</span> }<a name="line.346"></a> +<span class="sourceLineNo">347</span><a name="line.347"></a> +<span class="sourceLineNo">348</span> /**<a name="line.348"></a> +<span class="sourceLineNo">349</span> * Note: currently the default policy is set to defer to HDFS and this case is to verify the<a name="line.349"></a> +<span class="sourceLineNo">350</span> * logic, will need to remove the check if the default policy is changed<a name="line.350"></a> +<span class="sourceLineNo">351</span> */<a name="line.351"></a> +<span class="sourceLineNo">352</span> private void verifyNoHDFSApiInvocationForDefaultPolicy() {<a name="line.352"></a> +<span class="sourceLineNo">353</span> FileSystem testFs = new AlwaysFailSetStoragePolicyFileSystem();<a name="line.353"></a> +<span class="sourceLineNo">354</span> // There should be no exception thrown when setting to default storage policy, which indicates<a name="line.354"></a> +<span class="sourceLineNo">355</span> // the HDFS API hasn't been called<a name="line.355"></a> +<span class="sourceLineNo">356</span> try {<a name="line.356"></a> +<span class="sourceLineNo">357</span> FSUtils.setStoragePolicy(testFs, new Path("non-exist"), HConstants.DEFAULT_WAL_STORAGE_POLICY,<a name="line.357"></a> +<span class="sourceLineNo">358</span> true);<a name="line.358"></a> +<span class="sourceLineNo">359</span> } catch (IOException e) {<a name="line.359"></a> +<span class="sourceLineNo">360</span> Assert.fail("Should have bypassed the FS API when setting default storage policy");<a name="line.360"></a> +<span class="sourceLineNo">361</span> }<a name="line.361"></a> +<span class="sourceLineNo">362</span> // There should be exception thrown when given non-default storage policy, which indicates the<a name="line.362"></a> +<span class="sourceLineNo">363</span> // HDFS API has been called<a name="line.363"></a> +<span class="sourceLineNo">364</span> try {<a name="line.364"></a> +<span class="sourceLineNo">365</span> FSUtils.setStoragePolicy(testFs, new Path("non-exist"), "HOT", true);<a name="line.365"></a> +<span class="sourceLineNo">366</span> Assert.fail("Should have invoked the FS API but haven't");<a name="line.366"></a> +<span class="sourceLineNo">367</span> } catch (IOException e) {<a name="line.367"></a> +<span class="sourceLineNo">368</span> // expected given an invalid path<a name="line.368"></a> +<span class="sourceLineNo">369</span> }<a name="line.369"></a> +<span class="sourceLineNo">370</span> }<a name="line.370"></a> +<span class="sourceLineNo">371</span><a name="line.371"></a> +<span class="sourceLineNo">372</span> class AlwaysFailSetStoragePolicyFileSystem extends DistributedFileSystem {<a name="line.372"></a> +<span class="sourceLineNo">373</span> @Override<a name="line.373"></a> +<span class="sourceLineNo">374</span> public void setStoragePolicy(final Path src, final String policyName)<a name="line.374"></a> +<span class="sourceLineNo">375</span> throws IOException {<a name="line.375"></a> +<span class="sourceLineNo">376</span> throw new IOException("The setStoragePolicy method is invoked");<a name="line.376"></a> +<span class="sourceLineNo">377</span> }<a name="line.377"></a> +<span class="sourceLineNo">378</span> }<a name="line.378"></a> +<span class="sourceLineNo">379</span><a name="line.379"></a> +<span class="sourceLineNo">380</span> /* might log a warning, but still work. (always warning on Hadoop < 2.6.0) */<a name="line.380"></a> +<span class="sourceLineNo">381</span> @Test<a name="line.381"></a> +<span class="sourceLineNo">382</span> public void testSetStoragePolicyValidButMaybeNotPresent() throws Exception {<a name="line.382"></a> +<span class="sourceLineNo">383</span> verifyFileInDirWithStoragePolicy("ALL_SSD");<a name="line.383"></a> +<span class="sourceLineNo">384</span> }<a name="line.384"></a> +<span class="sourceLineNo">385</span><a name="line.385"></a> +<span class="sourceLineNo">386</span> final String INVALID_STORAGE_POLICY = "1772";<a name="line.386"></a> +<span class="sourceLineNo">387</span><a name="line.387"></a> +<span class="sourceLineNo">388</span> /* should log a warning, but still work. (different warning on Hadoop < 2.6.0) */<a name="line.388"></a> +<span class="sourceLineNo">389</span> @Test<a name="line.389"></a> +<span class="sourceLineNo">390</span> public void testSetStoragePolicyInvalid() throws Exception {<a name="line.390"></a> +<span class="sourceLineNo">391</span> verifyFileInDirWithStoragePolicy(INVALID_STORAGE_POLICY);<a name="line.391"></a> +<span class="sourceLineNo">392</span> }<a name="line.392"></a> +<span class="sourceLineNo">393</span><a name="line.393"></a> +<span class="sourceLineNo">394</span> // Here instead of TestCommonFSUtils because we need a minicluster<a name="line.394"></a> +<span class="sourceLineNo">395</span> private void verifyFileInDirWithStoragePolicy(final String policy) throws Exception {<a name="line.395"></a> +<span class="sourceLineNo">396</span> conf.set(HConstants.WAL_STORAGE_POLICY, policy);<a name="line.396"></a> +<span class="sourceLineNo">397</span><a name="line.397"></a> +<span class="sourceLineNo">398</span> MiniDFSCluster cluster = htu.startMiniDFSCluster(1);<a name="line.398"></a> +<span class="sourceLineNo">399</span> try {<a name="line.399"></a> +<span class="sourceLineNo">400</span> assertTrue(FSUtils.isHDFS(conf));<a name="line.400"></a> +<span class="sourceLineNo">401</span><a name="line.401"></a> +<span class="sourceLineNo">402</span> FileSystem fs = FileSystem.get(conf);<a name="line.402"></a> +<span class="sourceLineNo">403</span> Path testDir = htu.getDataTestDirOnTestFS("testArchiveFile");<a name="line.403"></a> +<span class="sourceLineNo">404</span> fs.mkdirs(testDir);<a name="line.404"></a> +<span class="sourceLineNo">405</span><a name="line.405"></a> +<span class="sourceLineNo">406</span> String storagePolicy =<a name="line.406"></a> +<span class="sourceLineNo">407</span> conf.get(HConstants.WAL_STORAGE_POLICY, HConstants.DEFAULT_WAL_STORAGE_POLICY);<a name="line.407"></a> +<span class="sourceLineNo">408</span> FSUtils.setStoragePolicy(fs, testDir, storagePolicy);<a name="line.408"></a> +<span class="sourceLineNo">409</span><a name="line.409"></a> +<span class="sourceLineNo">410</span> String file =htu.getRandomUUID().toString();<a name="line.410"></a> +<span class="sourceLineNo">411</span> Path p = new Path(testDir, file);<a name="line.411"></a> +<span class="sourceLineNo">412</span> WriteDataToHDFS(fs, p, 4096);<a name="line.412"></a> +<span class="sourceLineNo">413</span> HFileSystem hfs = new HFileSystem(fs);<a name="line.413"></a> +<span class="sourceLineNo">414</span> String policySet = hfs.getStoragePolicyName(p);<a name="line.414"></a> +<span class="sourceLineNo">415</span> LOG.debug("The storage policy of path " + p + " is " + policySet);<a name="line.415"></a> +<span class="sourceLineNo">416</span> if (policy.equals(HConstants.DEFER_TO_HDFS_STORAGE_POLICY)<a name="line.416"></a> +<span class="sourceLineNo">417</span> || policy.equals(INVALID_STORAGE_POLICY)) {<a name="line.417"></a> +<span class="sourceLineNo">418</span> String hdfsDefaultPolicy = hfs.getStoragePolicyName(hfs.getHomeDirectory());<a name="line.418"></a> +<span class="sourceLineNo">419</span> LOG.debug("The default hdfs storage policy (indicated by home path: "<a name="line.419"></a> +<span class="sourceLineNo">420</span> + hfs.getHomeDirectory() + ") is " + hdfsDefaultPolicy);<a name="line.420"></a> +<span class="sourceLineNo">421</span> Assert.assertEquals(hdfsDefaultPolicy, policySet);<a name="line.421"></a> +<span class="sourceLineNo">422</span> } else {<a name="line.422"></a> +<span class="sourceLineNo">423</span> Assert.assertEquals(policy, policySet);<a name="line.423"></a> +<span class="sourceLineNo">424</span> }<a name="line.424"></a> +<span class="sourceLineNo">425</span> // will assert existance before deleting.<a name="line.425"></a> +<span class="sourceLineNo">426</span> cleanupFile(fs, testDir);<a name="line.426"></a> +<span class="sourceLineNo">427</span> } finally {<a name="line.427"></a> +<span class="sourceLineNo">428</span> cluster.shutdown();<a name="line.428"></a> +<span class="sourceLineNo">429</span> }<a name="line.429"></a> +<span class="sourceLineNo">430</span> }<a name="line.430"></a> +<span class="sourceLineNo">431</span><a name="line.431"></a> +<span class="sourceLineNo">432</span> /**<a name="line.432"></a> +<span class="sourceLineNo">433</span> * Ugly test that ensures we can get at the hedged read counters in dfsclient.<a name="line.433"></a> +<span class="sourceLineNo">434</span> * Does a bit of preading with hedged reads enabled using code taken from hdfs TestPread.<a name="line.434"></a> +<span class="sourceLineNo">435</span> * @throws Exception<a name="line.435"></a> +<span class="sourceLineNo">436</span> */<a name="line.436"></a> +<span class="sourceLineNo">437</span> @Test public void testDFSHedgedReadMetrics() throws Exception {<a name="line.437"></a> +<span class="sourceLineNo">438</span> // Enable hedged reads and set it so the threshold is really low.<a name="line.438"></a> +<span class="sourceLineNo">439</span> // Most of this test is taken from HDFS, from TestPread.<a name="line.439"></a> +<span class="sourceLineNo">440</span> conf.setInt(DFSConfigKeys.DFS_DFSCLIENT_HEDGED_READ_THREADPOOL_SIZE, 5);<a name="line.440"></a> +<span class="sourceLineNo">441</span> conf.setLong(DFSConfigKeys.DFS_DFSCLIENT_HEDGED_READ_THRESHOLD_MILLIS, 0);<a name="line.441"></a> +<span class="sourceLineNo">442</span> conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 4096);<a name="line.442"></a> +<span class="sourceLineNo">443</span> conf.setLong(DFSConfigKeys.DFS_CLIENT_READ_PREFETCH_SIZE_KEY, 4096);<a name="line.443"></a> +<span class="sourceLineNo">444</span> // Set short retry timeouts so this test runs faster<a name="line.444"></a> +<span class="sourceLineNo">445</span> conf.setInt(DFSConfigKeys.DFS_CLIENT_RETRY_WINDOW_BASE, 0);<a name="line.445"></a> +<span class="sourceLineNo">446</span> conf.setBoolean("dfs.datanode.transferTo.allowed", false);<a name="line.446"></a> +<span class="sourceLineNo">447</span> MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();<a name="line.447"></a> +<span class="sourceLineNo">448</span> // Get the metrics. Should be empty.<a name="line.448"></a> +<span class="sourceLineNo">449</span> DFSHedgedReadMetrics metrics = FSUtils.getDFSHedgedReadMetrics(conf);<a name="line.449"></a> +<span class="sourceLineNo">450</span> assertEquals(0, metrics.getHedgedReadOps());<a name="line.450"></a> +<span class="sourceLineNo">451</span> FileSystem fileSys = cluster.getFileSystem();<a name="line.451"></a> +<span class="sourceLineNo">452</span> try {<a name="line.452"></a> +<span class="sourceLineNo">453</span> Path p = new Path("preadtest.dat");<a name="line.453"></a> +<span class="sourceLineNo">454</span> // We need > 1 blocks to test out the hedged reads.<a name="line.454"></a> +<span class="sourceLineNo">455</span> DFSTestUtil.createFile(fileSys, p, 12 * blockSize, 12 * blockSize,<a name="line.455"></a> +<span class="sourceLineNo">456</span> blockSize, (short) 3, seed);<a name="line.456"></a> +<span class="sourceLineNo">457</span> pReadFile(fileSys, p);<a name="line.457"></a> +<span class="sourceLineNo">458</span> cleanupFile(fileSys, p);<a name="line.458"></a> +<span class="sourceLineNo">459</span> assertTrue(metrics.getHedgedReadOps() > 0);<a name="line.459"></a> +<span class="sourceLineNo">460</span> } finally {<a name="line.460"></a> +<span class="sourceLineNo">461</span> fileSys.close();<a name="line.461"></a> +<span class="sourceLineNo">462</span> cluster.shutdown();<a name="line.462"></a> +<span class="sourceLineNo">463</span> }<a name="line.463"></a> +<span class="sourceLineNo">464</span> }<a name="line.464"></a> +<span class="sourceLineNo">465</span><a name="line.465"></a> +<span class="sourceLineNo">466</span><a name="line.466"></a> +<span class="sourceLineNo">467</span> @Test<a name="line.467"></a> +<span class="sourceLineNo">468</span> public void testCopyFilesParallel() throws Exception {<a name="line.468"></a> +<span class="sourceLineNo">469</span> MiniDFSCluster cluster = htu.startMiniDFSCluster(1);<a name="line.469"></a> +<span class="sourceLineNo">470</span> cluster.waitActive();<a name="line.470"></a> +<span class="sourceLineNo">471</span> FileSystem fs = cluster.getFileSystem();<a name="line.471"></a> +<span class="sourceLineNo">472</span> Path src = new Path("/src");<a name="line.472"></a> +<span class="sourceLineNo">473</span> fs.mkdirs(src);<a name="line.473"></a> +<span class="sourceLineNo">474</span> for (int i = 0; i < 50; i++) {<a name="line.474"></a> +<span class="sourceLineNo">475</span> WriteDataToHDFS(fs, new Path(src, String.valueOf(i)), 1024);<a name="line.475"></a> +<span class="sourceLineNo">476</span> }<a name="line.476"></a> +<span class="sourceLineNo">477</span> Path sub = new Path(src, "sub");<a name="line.477"></a> +<span class="sourceLineNo">478</span> fs.mkdirs(sub);<a name="line.478"></a> +<span class="sourceLineNo">479</span> for (int i = 0; i < 50; i++) {<a name="line.479"></a> +<span class="sourceLineNo">480</span> WriteDataToHDFS(fs, new Path(sub, String.valueOf(i)), 1024);<a name="line.480"></a> +<span class="sourceLineNo">481</span> }<a name="line.481"></a> +<span class="sourceLineNo">482</span> Path dst = new Path("/dst");<a name="line.482"></a> +<span class="sourceLineNo">483</span> List<Path> allFiles = FSUtils.copyFilesParallel(fs, src, fs, dst, conf, 4);<a name="line.483"></a> +<span class="sourceLineNo">484</span><a name="line.484"></a> +<span class="sourceLineNo">485</span> assertEquals(102, allFiles.size());<a name="line.485"></a> +<span class="sourceLineNo">486</span> FileStatus[] list = fs.listStatus(dst);<a name="line.486"></a> +<span class="sourceLineNo">487</span> assertEquals(51, list.length);<a name="line.487"></a> +<span class="sourceLineNo">488</span> FileStatus[] sublist = fs.listStatus(new Path(dst, "sub"));<a name="line.488"></a> +<span class="sourceLineNo">489</span> assertEquals(50, sublist.length);<a name="line.489"></a> +<span class="sourceLineNo">490</span> }<a name="line.490"></a> +<span class="sourceLineNo">491</span><a name="line.491"></a> +<span class="sourceLineNo">492</span> // Below is taken from TestPread over in HDFS.<a name="line.492"></a> +<span class="sourceLineNo">493</span> static final int blockSize = 4096;<a name="line.493"></a> +<span class="sourceLineNo">494</span> static final long seed = 0xDEADBEEFL;<a name="line.494"></a> +<span class="sourceLineNo">495</span><a name="line.495"></a> +<span class="sourceLineNo">496</span> private void pReadFile(FileSystem fileSys, Path name) throws IOException {<a name="line.496"></a> +<span class="sourceLineNo">497</span> FSDataInputStream stm = fileSys.open(name);<a name="line.497"></a> +<span class="sourceLineNo">498</span> byte[] expected = new byte[12 * blockSize];<a name="line.498"></a> +<span class="sourceLineNo">499</span> Random rand = new Random(seed);<a name="line.499"></a> +<span class="sourceLineNo">500</span> rand.nextBytes(expected);<a name="line.500"></a> +<span class="sourceLineNo">501</span> // do a sanity check. Read first 4K bytes<a name="line.501"></a> +<span class="sourceLineNo">502</span> byte[] actual = new byte[4096];<a name="line.502"></a> +<span class="sourceLineNo">503</span> stm.readFully(actual);<a name="line.503"></a> +<span class="sourceLineNo">504</span> checkAndEraseData(actual, 0, expected, "Read Sanity Test");<a name="line.504"></a> +<span class="sourceLineNo">505</span> // now do a pread for the first 8K bytes<a name="line.505"></a> +<span class="sourceLineNo">506</span> actual = new byte[8192];<a name="line.506"></a> +<span class="sourceLineNo">507</span> doPread(stm, 0L, actual, 0, 8192);<a name="line.507"></a> +<span class="sourceLineNo">508</span> checkAndEraseData(actual, 0, expected, "Pread Test 1");<a name="line.508"></a> +<span class="sourceLineNo">509</span> // Now check to see if the normal read returns 4K-8K byte range<a name="line.509"></a> +<span class="sourceLineNo">510</span> actual = new byte[4096];<a name="line.510"></a> +<span class="sourceLineNo">511</span> stm.readFully(actual);<a name="line.511"></a> +<span class="sourceLineNo">512</span> checkAndEraseData(actual, 4096, expected, "Pread Test 2");<a name="line.512"></a> +<span class="sourceLineNo">513</span> // Now see if we can cross a single block boundary successfully<a name="line.513"></a> +<span class="sourceLineNo">514</span> // read 4K bytes from blockSize - 2K offset<a name="line.514"></a> +<span class="sourceLineNo">515</span> stm.readFully(blockSize - 2048, actual, 0, 4096);<a name="line.515"></a> +<span class="sourceLineNo">516</span> checkAndEraseData(actual, (blockSize - 2048), expected, "Pread Test 3");<a name="line.516"></a> +<span class="sourceLineNo">517</span> // now see if we can cross two block boundaries successfully<a name="line.517"></a> +<span class="sourceLineNo">518</span> // read blockSize + 4K bytes from blockSize - 2K offset<a name="line.518"></a> +<span class="sourceLineNo">519</span> actual = new byte[blockSize + 4096];<a name="line.519"></a> +<span class="sourceLineNo">520</span> stm.readFully(blockSize - 2048, actual);<a name="line.520"></a> +<span class="sourceLineNo">521</span> checkAndEraseData(actual, (blockSize - 2048), expected, "Pread Test 4");<a name="line.521"></a> +<span class="sourceLineNo">522</span> // now see if we can cross two block boundaries that are not cached<a name="line.522"></a> +<span class="sourceLineNo">523</span> // read blockSize + 4K bytes from 10*blockSize - 2K offset<a name="line.523"></a> +<span class="sourceLineNo">524</span> actual = new byte[blockSize + 4096];<a name="line.524"></a> +<span class="sourceLineNo">525</span> stm.readFully(10 * blockSize - 2048, actual);<a name="line.525"></a> +<span class="sourceLineNo">526</span> checkAndEraseData(actual, (10 * blockSize - 2048), expected, "Pread Test 5");<a name="line.526"></a> +<span class="sourceLineNo">527</span> // now check that even after all these preads, we can still read<a name="line.527"></a> +<span class="sourceLineNo">528</span> // bytes 8K-12K<a name="line.528"></a> +<span class="sourceLineNo">529</span> actual = new byte[4096];<a name="line.529"></a> +<span class="sourceLineNo">530</span> stm.readFully(actual);<a name="line.530"></a> +<span class="sourceLineNo">531</span> checkAndEraseData(actual, 8192, expected, "Pread Test 6");<a name="line.531"></a> +<span class="sourceLineNo">532</span> // done<a name="line.532"></a> +<span class="sourceLineNo">533</span> stm.close();<a name="line.533"></a> +<span class="sourceLineNo">534</span> // check block location caching<a name="line.534"></a> +<span class="sourceLineNo">535</span> stm = fileSys.open(name);<a name="line.535"></a> +<span class="sourceLineNo">536</span> stm.readFully(1, actual, 0, 4096);<a name="line.536"></a> +<span class="sourceLineNo">537</span> stm.readFully(4*blockSize, actual, 0, 4096);<a name="line.537"></a> +<span class="sourceLineNo">538</span> stm.readFully(7*blockSize, actual, 0, 4096);<a name="line.538"></a> +<span class="sourceLineNo">539</span> actual = new byte[3*4096];<a name="line.539"></a> +<span class="sourceLineNo">540</span> stm.readFully(0*blockSize, actual, 0, 3*4096);<a name="line.540"></a> +<span class="sourceLineNo">541</span> checkAndEraseData(actual, 0, expected, "Pread Test 7");<a name="line.541"></a> +<span class="sourceLineNo">542</span> actual = new byte[8*4096];<a name="line.542"></a> +<span class="sourceLineNo">543</span> stm.readFully(3*blockSize, actual, 0, 8*4096);<a name="line.543"></a> +<span class="sourceLineNo">544</span> checkAndEraseData(actual, 3*blockSize, expected, "Pread Test 8");<a name="line.544"></a> +<span class="sourceLineNo">545</span> // read the tail<a name="line.545"></a> +<span class="sourceLineNo">546</span> stm.readFully(11*blockSize+blockSize/2, actual, 0, blockSize/2);<a name="line.546"></a> +<span class="sourceLineNo">547</span> IOException res = null;<a name="line.547"></a> +<span class="sourceLineNo">548</span> try { // read beyond the end of the file<a name="line.548"></a> +<span class="sourceLineNo">549</span> stm.readFully(11*blockSize+blockSize/2, actual, 0, blockSize);<a name="line.549"></a> +<span class="sourceLineNo">550</span> } catch (IOException e) {<a name="line.550"></a> +<span class="sourceLineNo">551</span> // should throw an exception<a name="line.551"></a> +<span class="sourceLineNo">552</span> res = e;<a name="line.552"></a> +<span class="sourceLineNo">553</span> }<a name="line.553"></a> +<span class="sourceLineNo">554</span> assertTrue("Error reading beyond file boundary.", res != null);<a name="line.554"></a> +<span class="sourceLineNo">555</span><a name="line.555"></a> +<span class="sourceLineNo">556</span> stm.close();<a name="line.556"></a> +<span class="sourceLineNo">557</span> }<a name="line.557"></a> +<span class="sourceLineNo">558</span><a name="line.558"></a> +<span class="sourceLineNo">559</span> private void checkAndEraseData(byte[] actual, int from, byte[] expected, String message) {<a name="line.559"></a> +<span class="sourceLineNo">560</span> for (int idx = 0; idx < actual.length; idx++) {<a name="line.560"></a> +<span class="sourceLineNo">561</span> assertEquals(message+" byte "+(from+idx)+" differs. expected "+<a name="line.561"></a> +<span class="sourceLineNo">562</span> expected[from+idx]+" actual "+actual[idx],<a name="line.562"></a> +<span class="sourceLineNo">563</span> actual[idx], expected[from+idx]);<a name="line.563"></a> +<span class="sourceLineNo">564</span> actual[idx] = 0;<a name="line.564"></a> +<span class="sourceLineNo">565</span> }<a name="line.565"></a> +<span class="sourceLineNo">566</span> }<a name="line.566"></a> +<span class="sourceLineNo">567</span><a name="line.567"></a> +<span class="sourceLineNo">568</span> private void doPread(FSDataInputStream stm, long position, byte[] buffer,<a name="line.568"></a> +<span class="sourceLineNo">569</span> int offset, int length) throws IOException {<a name="line.569"></a> +<span class="sourceLineNo">570</span> int nread = 0;<a name="line.570"></a> +<span class="sourceLineNo">571</span> // long totalRead = 0;<a name="line.571"></a> +<span class="sourceLineNo">572</span> // DFSInputStream dfstm = null;<a name="line.572"></a> +<span class="sourceLineNo">573</span><a name="line.573"></a> +<span class="sourceLineNo">574</span> /* Disable. This counts do not add up. Some issue in original hdfs tests?<a name="line.574"></a> +<span class="sourceLineNo">575</span> if (stm.getWrappedStream() instanceof DFSInputStream) {<a name="line.575"></a> +<span class="sourceLineNo">576</span> dfstm = (DFSInputStream) (stm.getWrappedStream());<a name="line.576"></a> +<span class="sourceLineNo">577</span> totalRead = dfstm.getReadStatistics().getTotalBytesRead();<a name="line.577"></a> +<span class="sourceLineNo">578</span> } */<a name="line.578"></a> +<span class="sourceLineNo">579</span><a name="line.579"></a> +<span class="sourceLineNo">580</span> while (nread < length) {<a name="line.580"></a> +<span class="sourceLineNo">581</span> int nbytes =<a name="line.581"></a> +<span class="sourceLineNo">582</span> stm.read(position + nread, buffer, offset + nread, length - nread);<a name="line.582"></a> +<span class="sourceLineNo">583</span> assertTrue("Error in pread", nbytes > 0);<a name="line.583"></a> +<span class="sourceLineNo">584</span> nread += nbytes;<a name="line.584"></a> +<span class="sourceLineNo">585</span> }<a name="line.585"></a> +<span class="sourceLineNo">586</span><a name="line.586"></a> +<span class="sourceLineNo">587</span> /* Disable. This counts do not add up. Some issue in original hdfs tests?<a name="line.587"></a> +<span class="sourceLineNo">588</span> if (dfstm != null) {<a name="line.588"></a> +<span class="sourceLineNo">589</span> if (isHedgedRead) {<a name="line.589"></a> +<span class="sourceLineNo">590</span> assertTrue("Expected read statistic to be incremented",<a name="line.590"></a> +<span class="sourceLineNo">591</span> length <= dfstm.getReadStatistics().getTotalBytesRead() - totalRead);<a name="line.591"></a> +<span class="sourceLineNo">592</span> } else {<a name="line.592"></a> +<span class="sourceLineNo">593</span> assertEquals("Expected read statistic to be incremented", length, dfstm<a name="line.593"></a> +<span class="sourceLineNo">594</span> .getReadStatistics().getTotalBytesRead() - totalRead);<a name="line.594"></a> +<span class="sourceLineNo">595</span> }<a name="line.595"></a> +<span class="sourceLineNo">596</span> }*/<a name="line.596"></a> +<span class="sourceLineNo">597</span> }<a name="line.597"></a> +<span class="sourceLineNo">598</span><a name="line.598"></a> +<span class="sourceLineNo">599</span> private void cleanupFile(FileSystem fileSys, Path name) throws IOException {<a name="line.599"></a> +<span class="sourceLineNo">600</span> assertTrue(fileSys.exists(name));<a name="line.600"></a> +<span class="sourceLineNo">601</span> assertTrue(fileSys.delete(name, true));<a name="line.601"></a> +<span class="sourceLineNo">602</span> assertTrue(!fileSys.exists(name));<a name="line.602"></a> +<span class="sourceLineNo">603</span> }<a name="line.603"></a> +<span class="sourceLineNo">604</span><a name="line.604"></a> +<span class="sourceLineNo">605</span><a name="line.605"></a> +<span class="sourceLineNo">606</span> private static final boolean STREAM_CAPABILITIES_IS_PRESENT;<a name="line.606"></a> +<span class="sourceLineNo">607</span> static {<a name="line.607"></a> +<span class="sourceLineNo">608</span> boolean tmp = false;<a name="line.608"></a> +<span class="sourceLineNo">609</span> try {<a name="line.609"></a> +<span class="sourceLineNo">610</span> Class.forName("org.apache.hadoop.fs.StreamCapabilities");<a name="line.610"></a> +<span class="sourceLineNo">611</span> tmp = true;<a name="line.611"></a> +<span class="sourceLineNo">612</span> LOG.debug("Test thought StreamCapabilities class was present.");<a name="line.612"></a> +<span class="sourceLineNo">613</span> } catch (ClassNotFoundException exception) {<a name="line.613"></a> +<span class="sourceLineNo">614</span> LOG.debug("Test didn't think StreamCapabilities class was present.");<a name="line.614"></a> +<span class="sourceLineNo">615</span> } finally {<a name="line.615"></a> +<span class="sourceLineNo">616</span> STREAM_CAPABILITIES_IS_PRESENT = tmp;<a name="line.616"></a> +<span class="sourceLineNo">617</span> }<a name="line.617"></a> +<span class="sourceLineNo">618</span> }<a name="line.618"></a> +<span class="sourceLineNo">619</span><a name="line.619"></a> +<span class="sourceLineNo">620</span> // Here instead of TestCommonFSUtils because we need a minicluster<a name="line.620"></a> +<span class="sourceLineNo">621</span> @Test<a name="line.621"></a> +<span class="sourceLineNo">622</span> public void checkStreamCapabilitiesOnHdfsDataOutputStream() throws Exception {<a name="line.622"></a> +<span class="sourceLineNo">623</span> MiniDFSCluster cluster = htu.startMiniDFSCluster(1);<a name="line.623"></a> +<span class="sourceLineNo">624</span> try (FileSystem filesystem = cluster.getFileSystem()) {<a name="line.624"></a> +<span class="sourceLineNo">625</span> FSDataOutputStream stream = filesystem.create(new Path("/tmp/foobar"));<a name="line.625"></a> +<span class="sourceLineNo">626</span> assertTrue(FSUtils.hasCapability(stream, "hsync"));<a name="line.626"></a> +<span class="sourceLineNo">627</span> assertTrue(FSUtils.hasCapability(stream, "hflush"));<a name="line.627"></a> +<span class="sourceLineNo">628</span> assertNotEquals("We expect HdfsDataOutputStream to say it has a dummy capability iff the " +<a name="line.628"></a> +<span class="sourceLineNo">629</span> "StreamCapabilities class is not defined.",<a name="line.629"></a> +<span class="sourceLineNo">630</span> STREAM_CAPABILITIES_IS_PRESENT,<a name="line.630"></a> +<span class="sourceLineNo">631</span> FSUtils.hasCapability(stream, "a capability that hopefully HDFS doesn't add."));<a name="line.631"></a> +<span class="sourceLineNo">632</span> } finally {<a name="line.632"></a> +<span class="sourceLineNo">633</span> cluster.shutdown();<a name="line.633"></a> +<span class="sourceLineNo">634</span> }<a name="line.634"></a> +<span class="sourceLineNo">635</span> }<a name="line.635"></a> +<span class="sourceLineNo">636</span><a name="line.636"></a> +<span class="sourceLineNo">637</span>}<a name="line.637"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html>
