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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.junit.Assert.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><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Optional;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.atomic.AtomicReference;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HConstants;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ServerName;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.StartTestingClusterOption;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableName;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Put;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.RetriesExhaustedException;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.Table;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.ipc.CallRunner;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.ipc.PluggableBlockingQueue;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.ipc.PriorityFunction;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.ipc.TestPluggableQueueImpl;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.testclassification.RegionServerTests;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.JVMClusterUtil;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.junit.AfterClass;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.junit.BeforeClass;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.junit.ClassRule;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.junit.Test;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.junit.experimental.categories.Category;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.slf4j.Logger;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.slf4j.LoggerFactory;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span>@Category({ RegionServerTests.class, MediumTests.class })<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>public class TestRegionServerRejectDuringAbort {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> @ClassRule<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> HBaseClassTestRule.forClass(TestRegionServerRejectDuringAbort.class);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private static final Logger LOG =<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> LoggerFactory.getLogger(TestRegionServerRejectDuringAbort.class);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private static TableName TABLE_NAME = TableName.valueOf("RSRejectOnAbort");<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private static byte[] CF = Bytes.toBytes("cf");<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private static final int REGIONS_NUM = 5;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private static final AtomicReference<Exception> THROWN_EXCEPTION = new AtomicReference<>(null);<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private static volatile boolean shouldThrowTooBig = false;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> @BeforeClass<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> public static void setUp() throws Exception {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // Will schedule a abort timeout task after SLEEP_TIME_WHEN_CLOSE_REGION ms<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> UTIL.getConfiguration().set("hbase.ipc.server.callqueue.type", "pluggable");<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> UTIL.getConfiguration().setClass("hbase.ipc.server.callqueue.pluggable.queue.class.name",<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> CallQueueTooBigThrowingQueue.class, PluggableBlockingQueue.class);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> StartTestingClusterOption option =<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> StartTestingClusterOption.builder().numRegionServers(2).build();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> UTIL.startMiniCluster(option);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> TableDescriptor td = TableDescriptorBuilder.newBuilder(TABLE_NAME)<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> .setCoprocessor(SleepWhenCloseCoprocessor.class.getName())<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(CF).build()).build();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> UTIL.getAdmin().createTable(td, Bytes.toBytes("0"), Bytes.toBytes("9"), REGIONS_NUM);<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> public static final class CallQueueTooBigThrowingQueue extends TestPluggableQueueImpl {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span><a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public CallQueueTooBigThrowingQueue(int maxQueueLength, PriorityFunction priority,<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> Configuration conf) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> super(maxQueueLength, priority, conf);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> @Override<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public boolean offer(CallRunner callRunner) {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> if (shouldThrowTooBig && callRunner.getRpcCall().getRequestAttribute("test") != null) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> return false;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> return super.offer(callRunner);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> @AfterClass<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> public static void tearDown() throws Exception {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> UTIL.shutdownMiniCluster();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> /**<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * Tests that the logic in ServerRpcConnection works such that if the server is aborted, it short<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * circuits any other logic. This means we no longer even attempt to enqueue the request onto the<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * call queue. We verify this by using a special call queue which we can trigger to always return<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * CallQueueTooBigException. If the logic works, despite forcing those exceptions, we should not<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * see them.<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> */<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> @Test<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> public void testRejectRequestsOnAbort() throws Exception {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> // We don't want to disrupt the server carrying meta, because we plan to disrupt requests to<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // the server. Disrupting meta requests messes with the test.<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> HRegionServer serverWithoutMeta = null;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> for (JVMClusterUtil.RegionServerThread regionServerThread : UTIL.getMiniHBaseCluster()<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> .getRegionServerThreads()) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> HRegionServer regionServer = regionServerThread.getRegionServer();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> if (<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> regionServer.getRegions(TableName.META_TABLE_NAME).isEmpty()<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> && !regionServer.getRegions(TABLE_NAME).isEmpty()<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> ) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> serverWithoutMeta = regionServer;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> break;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> assertNotNull("couldn't find a server without meta, but with test table regions",<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> serverWithoutMeta);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> Thread writer = new Thread(getWriterThreadRunnable(serverWithoutMeta.getServerName()));<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> writer.setDaemon(true);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> writer.start();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span><a name="line.152"></a> |
| <span class="sourceLineNo">153</span> // Trigger the abort. Our WriterThread will detect the first RegionServerAbortedException<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> // and trigger our custom queue to reject any more requests. This would typically result in<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // CallQueueTooBigException, unless our logic in ServerRpcConnection to preempt the processing<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // of a request is working.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> serverWithoutMeta.abort("Abort RS for test");<a name="line.157"></a> |
| <span class="sourceLineNo">158</span><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> UTIL.waitFor(60_000, () -> THROWN_EXCEPTION.get() != null);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> assertEquals(THROWN_EXCEPTION.get().getCause().getClass(), RegionServerAbortedException.class);<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> private Runnable getWriterThreadRunnable(ServerName loadServer) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> return () -> {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> try {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> Configuration conf = UTIL.getConfiguration();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 5);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> try (Connection conn = ConnectionFactory.createConnection(conf);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> Table table = conn.getTableBuilder(TABLE_NAME, null)<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> .setRequestAttribute("test", new byte[] { 0 }).build()) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> // find the first region to exist on our test server, then submit requests to it<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> for (HRegionLocation regionLocation : table.getRegionLocator().getAllRegionLocations()) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> if (regionLocation.getServerName().equals(loadServer)) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> submitRequestsToRegion(table, regionLocation.getRegion());<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> return;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> throw new RuntimeException("Failed to find any regions for loadServer " + loadServer);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> } catch (Exception e) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> LOG.warn("Failed to load data", e);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> synchronized (THROWN_EXCEPTION) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> THROWN_EXCEPTION.set(e);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> THROWN_EXCEPTION.notifyAll();<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> };<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span><a name="line.189"></a> |
| <span class="sourceLineNo">190</span> private void submitRequestsToRegion(Table table, RegionInfo regionInfo) throws IOException {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // We will block closes of the regions with a CP, so no need to worry about the region getting<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // reassigned. Just use the same rowkey always.<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> byte[] rowKey = getRowKeyWithin(regionInfo);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> int i = 0;<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> while (true) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> try {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> i++;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> table.put(new Put(rowKey).addColumn(CF, Bytes.toBytes(i), Bytes.toBytes(i)));<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> } catch (IOException e) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> // only catch RegionServerAbortedException once. After that, the next exception thrown<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> // is our test case<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> if (<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> !shouldThrowTooBig && e instanceof RetriesExhaustedException<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> && e.getCause() instanceof RegionServerAbortedException<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> ) {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> shouldThrowTooBig = true;<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> } else {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> throw e;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> }<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> // small sleep to relieve pressure<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> Threads.sleep(10);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> }<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> private byte[] getRowKeyWithin(RegionInfo regionInfo) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> byte[] rowKey;<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // region is start of table, find one after start key<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> if (regionInfo.getStartKey().length == 0) {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (regionInfo.getEndKey().length == 0) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // doesn't matter, single region table<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> return Bytes.toBytes(1);<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> } else {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // find a row just before endkey<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> rowKey = Bytes.copy(regionInfo.getEndKey());<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> rowKey[rowKey.length - 1]--;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> return rowKey;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> } else {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> return regionInfo.getStartKey();<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> }<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> public static class SleepWhenCloseCoprocessor implements RegionCoprocessor, RegionObserver {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span><a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public SleepWhenCloseCoprocessor() {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> @Override<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> public Optional<RegionObserver> getRegionObserver() {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> return Optional.of(this);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> }<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> @Override<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> public void preClose(ObserverContext<RegionCoprocessorEnvironment> c, boolean abortRequested)<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> throws IOException {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> // Wait so that the region can't close until we get the information we need from our test<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> UTIL.waitFor(60_000, () -> THROWN_EXCEPTION.get() != null);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span>}<a name="line.253"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
