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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.client;<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.assertEquals;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertNotNull;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.assertNull;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.junit.Assert.assertTrue;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.junit.Assert.fail;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span><a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.io.IOException;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Arrays;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.conf.Configuration;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.CallQueueTooBigException;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HConstants;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.MultiActionResultTooLarge;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.NotServingRegionException;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.RegionTooBusyException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.RetryImmediatelyException;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.TableName;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.exceptions.RegionOpeningException;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.quotas.RpcThrottlingException;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.regionserver.RSRpcServices;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.testclassification.ClientTests;<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.util.Bytes;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.After;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.junit.AfterClass;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.junit.BeforeClass;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.junit.ClassRule;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.junit.Test;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.junit.experimental.categories.Category;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hbase.thirdparty.com.google.common.io.Closeables;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hbase.thirdparty.com.google.protobuf.RpcController;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetResponse;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span>@Category({ MediumTests.class, ClientTests.class })<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>public class TestMetaCache {<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(TestMetaCache.class);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private final static HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private static final TableName TABLE_NAME = TableName.valueOf("test_table");<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private static final byte[] FAMILY = Bytes.toBytes("fam1");<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private static final byte[] QUALIFIER = Bytes.toBytes("qual");<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private static HRegionServer badRS;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private Connection conn;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private MetricsConnection metrics;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private AsyncRegionLocator locator;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> @BeforeClass<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> public static void setUpBeforeClass() throws Exception {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> Configuration conf = TEST_UTIL.getConfiguration();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> conf.setStrings(HConstants.REGION_SERVER_IMPL, RegionServerWithFakeRpcServices.class.getName());<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> TEST_UTIL.startMiniCluster(1);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> TEST_UTIL.getHBaseCluster().waitForActiveAndReadyMaster();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> TEST_UTIL.waitUntilAllRegionsAssigned(TableName.META_TABLE_NAME);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> badRS = TEST_UTIL.getHBaseCluster().getRegionServer(0);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> assertTrue(badRS.getRSRpcServices() instanceof FakeRSRpcServices);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> TableDescriptor desc = TableDescriptorBuilder.newBuilder(TABLE_NAME)<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(FAMILY).setMaxVersions(2).build())<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> .build();<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> TEST_UTIL.createTable(desc, null);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> @AfterClass<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> public static void tearDownAfterClass() throws Exception {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> TEST_UTIL.shutdownMiniCluster();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> @After<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> public void tearDown() throws IOException {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> Closeables.close(conn, true);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> private void setupConnection(int retry) throws IOException {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> Configuration conf = new Configuration(TEST_UTIL.getConfiguration());<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, retry);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> conf.setBoolean(MetricsConnection.CLIENT_SIDE_METRICS_ENABLED_KEY, true);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> conn = ConnectionFactory.createConnection(conf);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> AsyncConnectionImpl asyncConn = (AsyncConnectionImpl) conn.toAsyncConnection();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> locator = asyncConn.getLocator();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> metrics = asyncConn.getConnectionMetrics().get();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> @Test<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> public void testPreserveMetaCacheOnException() throws Exception {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> ((FakeRSRpcServices) badRS.getRSRpcServices())<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> .setExceptionInjector(new RoundRobinExceptionInjector());<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> setupConnection(1);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> try (Table table = conn.getTable(TABLE_NAME)) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> byte[] row = Bytes.toBytes("row1");<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> Put put = new Put(row);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> put.addColumn(FAMILY, QUALIFIER, Bytes.toBytes(10));<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> Get get = new Get(row);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> Append append = new Append(row);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> append.addColumn(FAMILY, QUALIFIER, Bytes.toBytes(11));<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> Increment increment = new Increment(row);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> increment.addColumn(FAMILY, QUALIFIER, 10);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> Delete delete = new Delete(row);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> delete.addColumn(FAMILY, QUALIFIER);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> RowMutations mutations = new RowMutations(row);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> mutations.add(put);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> mutations.add(delete);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> Exception exp;<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> boolean success;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> for (int i = 0; i < 50; i++) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> exp = null;<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> success = false;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> try {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> table.put(put);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // If at least one operation succeeded, we should have cached the region location.<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> success = true;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> table.get(get);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> table.append(append);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> table.increment(increment);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> table.delete(delete);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> table.mutateRow(mutations);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> } catch (IOException ex) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // Only keep track of the last exception that updated the meta cache<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> if (ClientExceptionsUtil.isMetaClearingException(ex) || success) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> exp = ex;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // Do not test if we did not touch the meta cache in this iteration.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (exp != null && ClientExceptionsUtil.isMetaClearingException(exp)) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> assertNull(locator.getRegionLocationInCache(TABLE_NAME, row));<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> } else if (success) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> assertNotNull(locator.getRegionLocationInCache(TABLE_NAME, row));<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> @Test<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> public void testCacheClearingOnCallQueueTooBig() throws Exception {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> ((FakeRSRpcServices) badRS.getRSRpcServices())<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> .setExceptionInjector(new CallQueueTooBigExceptionInjector());<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> setupConnection(2);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> Table table = conn.getTable(TABLE_NAME);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> byte[] row = Bytes.toBytes("row1");<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> Put put = new Put(row);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> put.addColumn(FAMILY, QUALIFIER, Bytes.toBytes(10));<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> table.put(put);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // obtain the client metrics<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> long preGetRegionClears = metrics.metaCacheNumClearRegion.getCount();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> long preGetServerClears = metrics.metaCacheNumClearServer.getCount();<a name="line.180"></a> |
| <span class="sourceLineNo">181</span><a name="line.181"></a> |
| <span class="sourceLineNo">182</span> // attempt a get on the test table<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> Get get = new Get(row);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> try {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> table.get(get);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> fail("Expected CallQueueTooBigException");<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> } catch (RetriesExhaustedException ree) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> // expected<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // verify that no cache clearing took place<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> long postGetRegionClears = metrics.metaCacheNumClearRegion.getCount();<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> long postGetServerClears = metrics.metaCacheNumClearServer.getCount();<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> assertEquals(preGetRegionClears, postGetRegionClears);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> assertEquals(preGetServerClears, postGetServerClears);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> public static List<Throwable> metaCachePreservingExceptions() {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> return Arrays.asList(new RegionOpeningException(" "),<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> new RegionTooBusyException("Some old message"), new RpcThrottlingException(" "),<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> new MultiActionResultTooLarge(" "), new RetryImmediatelyException(" "),<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> new CallQueueTooBigException());<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> public static class RegionServerWithFakeRpcServices extends HRegionServer {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> private FakeRSRpcServices rsRpcServices;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span><a name="line.207"></a> |
| <span class="sourceLineNo">208</span> public RegionServerWithFakeRpcServices(Configuration conf)<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> throws IOException, InterruptedException {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> super(conf);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> @Override<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> protected RSRpcServices createRpcServices() throws IOException {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> this.rsRpcServices = new FakeRSRpcServices(this);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> return rsRpcServices;<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> public void setExceptionInjector(ExceptionInjector injector) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> rsRpcServices.setExceptionInjector(injector);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> }<a name="line.222"></a> |
| <span class="sourceLineNo">223</span><a name="line.223"></a> |
| <span class="sourceLineNo">224</span> public static class FakeRSRpcServices extends RSRpcServices {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> private ExceptionInjector exceptions;<a name="line.226"></a> |
| <span class="sourceLineNo">227</span><a name="line.227"></a> |
| <span class="sourceLineNo">228</span> public FakeRSRpcServices(HRegionServer rs) throws IOException {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> super(rs);<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> exceptions = new RoundRobinExceptionInjector();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> public void setExceptionInjector(ExceptionInjector injector) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> this.exceptions = injector;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> @Override<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public GetResponse get(final RpcController controller, final ClientProtos.GetRequest request)<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> throws ServiceException {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> exceptions.throwOnGet(this, request);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> return super.get(controller, request);<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> @Override<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> public ClientProtos.MutateResponse mutate(final RpcController controller,<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> final ClientProtos.MutateRequest request) throws ServiceException {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> exceptions.throwOnMutate(this, request);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> return super.mutate(controller, request);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> }<a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> @Override<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> public ClientProtos.ScanResponse scan(final RpcController controller,<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> final ClientProtos.ScanRequest request) throws ServiceException {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> exceptions.throwOnScan(this, request);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return super.scan(controller, request);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> }<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> public static abstract class ExceptionInjector {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> protected boolean isTestTable(FakeRSRpcServices rpcServices,<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> HBaseProtos.RegionSpecifier regionSpec) throws ServiceException {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> try {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> return TABLE_NAME<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> .equals(rpcServices.getRegion(regionSpec).getTableDescriptor().getTableName());<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> } catch (IOException ioe) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> throw new ServiceException(ioe);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> }<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> public abstract void throwOnGet(FakeRSRpcServices rpcServices, ClientProtos.GetRequest request)<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> throws ServiceException;<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> public abstract void throwOnMutate(FakeRSRpcServices rpcServices,<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> ClientProtos.MutateRequest request) throws ServiceException;<a name="line.274"></a> |
| <span class="sourceLineNo">275</span><a name="line.275"></a> |
| <span class="sourceLineNo">276</span> public abstract void throwOnScan(FakeRSRpcServices rpcServices,<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> ClientProtos.ScanRequest request) throws ServiceException;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> /**<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * Rotates through the possible cache clearing and non-cache clearing exceptions for requests.<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> */<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> public static class RoundRobinExceptionInjector extends ExceptionInjector {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> private int numReqs = -1;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> private int expCount = -1;<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> private List<Throwable> metaCachePreservingExceptions = metaCachePreservingExceptions();<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> @Override<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public void throwOnGet(FakeRSRpcServices rpcServices, ClientProtos.GetRequest request)<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> throws ServiceException {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> throwSomeExceptions(rpcServices, request.getRegion());<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> @Override<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> public void throwOnMutate(FakeRSRpcServices rpcServices, ClientProtos.MutateRequest request)<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> throws ServiceException {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> throwSomeExceptions(rpcServices, request.getRegion());<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> @Override<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> public void throwOnScan(FakeRSRpcServices rpcServices, ClientProtos.ScanRequest request)<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> throws ServiceException {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> if (!request.hasScannerId()) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // only handle initial scan requests<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> throwSomeExceptions(rpcServices, request.getRegion());<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> /**<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * Throw some exceptions. Mostly throw exceptions which do not clear meta cache. Periodically<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * throw NotSevingRegionException which clears the meta cache. n<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> */<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> private void throwSomeExceptions(FakeRSRpcServices rpcServices,<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> HBaseProtos.RegionSpecifier regionSpec) throws ServiceException {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> if (!isTestTable(rpcServices, regionSpec)) {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> return;<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> }<a name="line.317"></a> |
| <span class="sourceLineNo">318</span><a name="line.318"></a> |
| <span class="sourceLineNo">319</span> numReqs++;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> // Succeed every 5 request, throw cache clearing exceptions twice every 5 requests and throw<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> // meta cache preserving exceptions otherwise.<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> if (numReqs % 5 == 0) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> return;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> } else if (numReqs % 5 == 1 || numReqs % 5 == 2) {<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> throw new ServiceException(new NotServingRegionException());<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> }<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // Round robin between different special exceptions.<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> // This is not ideal since exception types are not tied to the operation performed here,<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // But, we don't really care here if we throw MultiActionTooLargeException while doing<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> // single Gets.<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> expCount++;<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> Throwable t =<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> metaCachePreservingExceptions.get(expCount % metaCachePreservingExceptions.size());<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> throw new ServiceException(t);<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span><a name="line.337"></a> |
| <span class="sourceLineNo">338</span> /**<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> * Throws CallQueueTooBigException for all gets.<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> */<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> public static class CallQueueTooBigExceptionInjector extends ExceptionInjector {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> @Override<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> public void throwOnGet(FakeRSRpcServices rpcServices, ClientProtos.GetRequest request)<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> throws ServiceException {<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> if (isTestTable(rpcServices, request.getRegion())) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> throw new ServiceException(new CallQueueTooBigException());<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><a name="line.349"></a> |
| <span class="sourceLineNo">350</span> @Override<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> public void throwOnMutate(FakeRSRpcServices rpcServices, ClientProtos.MutateRequest request)<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> throws ServiceException {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span><a name="line.354"></a> |
| <span class="sourceLineNo">355</span> @Override<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> public void throwOnScan(FakeRSRpcServices rpcServices, ClientProtos.ScanRequest request)<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> throws ServiceException {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span>}<a name="line.360"></a> |
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| </div> |
| </body> |
| </html> |
