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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.procedure;<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.assertArrayEquals;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertEquals;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.mockito.Mockito.never;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.mockito.Mockito.spy;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.mockito.Mockito.times;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import static org.mockito.Mockito.verify;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.CountDownLatch;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.junit.AfterClass;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.BeforeClass;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.junit.ClassRule;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.junit.Test;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.junit.experimental.categories.Category;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.mockito.Mockito;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.mockito.invocation.InvocationOnMock;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.mockito.stubbing.Answer;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.mockito.verification.VerificationMode;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.slf4j.Logger;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.slf4j.LoggerFactory;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span>/**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * Test zookeeper-based, procedure controllers<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>@Category({ MasterTests.class, MediumTests.class })<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>public class TestZKProcedureControllers {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> @ClassRule<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> HBaseClassTestRule.forClass(TestZKProcedureControllers.class);<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private static final Logger LOG = LoggerFactory.getLogger(TestZKProcedureControllers.class);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private final static HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static final String COHORT_NODE_NAME = "expected";<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private static final String CONTROLLER_NODE_NAME = "controller";<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private static final VerificationMode once = Mockito.times(1);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private final byte[] memberData = Bytes.toBytes("data from member");<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> @BeforeClass<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static void setupTest() throws Exception {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> UTIL.startMiniZKCluster();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @AfterClass<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public static void cleanupTest() throws Exception {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> UTIL.shutdownMiniZKCluster();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> /**<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * Smaller test to just test the actuation on the cohort member<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @throws Exception on failure<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> */<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> @Test<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public void testSimpleZKCohortMemberController() throws Exception {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> ZKWatcher watcher = UTIL.getZooKeeperWatcher();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> final String operationName = "instanceTest";<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> final Subprocedure sub = Mockito.mock(Subprocedure.class);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> Mockito.when(sub.getName()).thenReturn(operationName);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> final byte[] data = new byte[] { 1, 2, 3 };<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> final CountDownLatch prepared = new CountDownLatch(1);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> final CountDownLatch committed = new CountDownLatch(1);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> final ForeignExceptionDispatcher monitor = spy(new ForeignExceptionDispatcher());<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> final ZKProcedureMemberRpcs controller = new ZKProcedureMemberRpcs(watcher, "testSimple");<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> // mock out cohort member callbacks<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> final ProcedureMember member = Mockito.mock(ProcedureMember.class);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> Mockito.doReturn(sub).when(member).createSubprocedure(operationName, data);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> Mockito.doAnswer(new Answer<Void>() {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> @Override<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> public Void answer(InvocationOnMock invocation) throws Throwable {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> controller.sendMemberAcquired(sub);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> prepared.countDown();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> return null;<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> }<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }).when(member).submitSubprocedure(sub);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> Mockito.doAnswer(new Answer<Void>() {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> @Override<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public Void answer(InvocationOnMock invocation) throws Throwable {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> controller.sendMemberCompleted(sub, memberData);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> committed.countDown();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return null;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }).when(member).receivedReachedGlobalBarrier(operationName);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // start running the listener<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> controller.start(COHORT_NODE_NAME, member);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // set a prepare node from a 'coordinator'<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> String prepare =<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> ZKProcedureUtil.getAcquireBarrierNode(controller.getZkController(), operationName);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> ZKUtil.createSetData(watcher, prepare, ProtobufUtil.prependPBMagic(data));<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // wait for the operation to be prepared<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> prepared.await();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // create the commit node so we update the operation to enter the commit phase<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> String commit =<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> ZKProcedureUtil.getReachedBarrierNode(controller.getZkController(), operationName);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> LOG.debug("Found prepared, posting commit node:" + commit);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> ZKUtil.createAndFailSilent(watcher, commit);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> LOG.debug("Commit node:" + commit + ", exists:" + ZKUtil.checkExists(watcher, commit));<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> committed.await();<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> verify(monitor, never()).receive(Mockito.any());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> // XXX: broken due to composition.<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // verify(member, never()).getManager().controllerConnectionFailure(Mockito.anyString(),<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Mockito.any());<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // cleanup after the test<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> ZKUtil.deleteNodeRecursively(watcher, controller.getZkController().getBaseZnode());<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> assertEquals("Didn't delete prepare node", -1, ZKUtil.checkExists(watcher, prepare));<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> assertEquals("Didn't delete commit node", -1, ZKUtil.checkExists(watcher, commit));<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> @Test<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> public void testZKCoordinatorControllerWithNoCohort() throws Exception {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> final String operationName = "no cohort controller test";<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> final byte[] data = new byte[] { 1, 2, 3 };<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> runMockCommitWithOrchestratedControllers(startCoordinatorFirst, operationName, data);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> runMockCommitWithOrchestratedControllers(startCohortFirst, operationName, data);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> @Test<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> public void testZKCoordinatorControllerWithSingleMemberCohort() throws Exception {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> final String operationName = "single member controller test";<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> final byte[] data = new byte[] { 1, 2, 3 };<a name="line.162"></a> |
| <span class="sourceLineNo">163</span><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> runMockCommitWithOrchestratedControllers(startCoordinatorFirst, operationName, data, "cohort");<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> runMockCommitWithOrchestratedControllers(startCohortFirst, operationName, data, "cohort");<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> @Test<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> public void testZKCoordinatorControllerMultipleCohort() throws Exception {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> final String operationName = "multi member controller test";<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> final byte[] data = new byte[] { 1, 2, 3 };<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> runMockCommitWithOrchestratedControllers(startCoordinatorFirst, operationName, data, "cohort",<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> "cohort2", "cohort3");<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> runMockCommitWithOrchestratedControllers(startCohortFirst, operationName, data, "cohort",<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> "cohort2", "cohort3");<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> private void runMockCommitWithOrchestratedControllers(StartControllers controllers,<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> String operationName, byte[] data, String... cohort) throws Exception {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> ZKWatcher watcher = UTIL.getZooKeeperWatcher();<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> List<String> expected = Lists.newArrayList(cohort);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> final Subprocedure sub = Mockito.mock(Subprocedure.class);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> Mockito.when(sub.getName()).thenReturn(operationName);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> CountDownLatch prepared = new CountDownLatch(expected.size());<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> CountDownLatch committed = new CountDownLatch(expected.size());<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> ArrayList<byte[]> dataFromMembers = new ArrayList<>();<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // mock out coordinator so we can keep track of zk progress<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> ProcedureCoordinator coordinator =<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> setupMockCoordinator(operationName, prepared, committed, dataFromMembers);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> ProcedureMember member = Mockito.mock(ProcedureMember.class);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> Pair<ZKProcedureCoordinator, List<ZKProcedureMemberRpcs>> pair = controllers.start(watcher,<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> operationName, coordinator, CONTROLLER_NODE_NAME, member, expected);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> ZKProcedureCoordinator controller = pair.getFirst();<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> List<ZKProcedureMemberRpcs> cohortControllers = pair.getSecond();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> // start the operation<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> Procedure p = Mockito.mock(Procedure.class);<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> Mockito.when(p.getName()).thenReturn(operationName);<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> controller.sendGlobalBarrierAcquire(p, data, expected);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> // post the prepare node for each expected node<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> for (ZKProcedureMemberRpcs cc : cohortControllers) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> cc.sendMemberAcquired(sub);<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> // wait for all the notifications to reach the coordinator<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> prepared.await();<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> // make sure we got the all the nodes and no more<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> Mockito.verify(coordinator, times(expected.size()))<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> .memberAcquiredBarrier(Mockito.eq(operationName), Mockito.anyString());<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> // kick off the commit phase<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> controller.sendGlobalBarrierReached(p, expected);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> // post the committed node for each expected node<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> for (ZKProcedureMemberRpcs cc : cohortControllers) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> cc.sendMemberCompleted(sub, memberData);<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // wait for all commit notifications to reach the coordinator<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> committed.await();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> // make sure we got the all the nodes and no more<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> Mockito.verify(coordinator, times(expected.size())).memberFinishedBarrier(<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> Mockito.eq(operationName), Mockito.anyString(), Mockito.eq(memberData));<a name="line.230"></a> |
| <span class="sourceLineNo">231</span><a name="line.231"></a> |
| <span class="sourceLineNo">232</span> assertEquals("Incorrect number of members returnd data", expected.size(),<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> dataFromMembers.size());<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> for (byte[] result : dataFromMembers) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> assertArrayEquals("Incorrect data from member", memberData, result);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span><a name="line.237"></a> |
| <span class="sourceLineNo">238</span> controller.resetMembers(p);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> // verify all behavior<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> verifyZooKeeperClean(operationName, watcher, controller.getZkProcedureUtil());<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> verifyCohort(member, cohortControllers.size(), operationName, data);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> verifyCoordinator(operationName, coordinator, expected);<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> // TODO Broken by composition.<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> // @Test<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> // public void testCoordinatorControllerHandlesEarlyPrepareNodes() throws Exception {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> // runEarlyPrepareNodes(startCoordinatorFirst, "testEarlyPreparenodes", new byte[] { 1, 2, 3 },<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // "cohort1", "cohort2");<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> // runEarlyPrepareNodes(startCohortFirst, "testEarlyPreparenodes", new byte[] { 1, 2, 3 },<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> // "cohort1", "cohort2");<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> // }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> public void runEarlyPrepareNodes(StartControllers controllers, String operationName, byte[] data,<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> String... cohort) throws Exception {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> ZKWatcher watcher = UTIL.getZooKeeperWatcher();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> List<String> expected = Lists.newArrayList(cohort);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> final Subprocedure sub = Mockito.mock(Subprocedure.class);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> Mockito.when(sub.getName()).thenReturn(operationName);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span><a name="line.262"></a> |
| <span class="sourceLineNo">263</span> final CountDownLatch prepared = new CountDownLatch(expected.size());<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> final CountDownLatch committed = new CountDownLatch(expected.size());<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> ArrayList<byte[]> dataFromMembers = new ArrayList<>();<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // mock out coordinator so we can keep track of zk progress<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> ProcedureCoordinator coordinator =<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> setupMockCoordinator(operationName, prepared, committed, dataFromMembers);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> ProcedureMember member = Mockito.mock(ProcedureMember.class);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> Procedure p = Mockito.mock(Procedure.class);<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> Mockito.when(p.getName()).thenReturn(operationName);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span><a name="line.274"></a> |
| <span class="sourceLineNo">275</span> Pair<ZKProcedureCoordinator, List<ZKProcedureMemberRpcs>> pair = controllers.start(watcher,<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> operationName, coordinator, CONTROLLER_NODE_NAME, member, expected);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> ZKProcedureCoordinator controller = pair.getFirst();<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> List<ZKProcedureMemberRpcs> cohortControllers = pair.getSecond();<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> // post 1/2 the prepare nodes early<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> for (int i = 0; i < cohortControllers.size() / 2; i++) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> cohortControllers.get(i).sendMemberAcquired(sub);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span><a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // start the operation<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> controller.sendGlobalBarrierAcquire(p, data, expected);<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> // post the prepare node for each expected node<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> for (ZKProcedureMemberRpcs cc : cohortControllers) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> cc.sendMemberAcquired(sub);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> // wait for all the notifications to reach the coordinator<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> prepared.await();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> // make sure we got the all the nodes and no more<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> Mockito.verify(coordinator, times(expected.size()))<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> .memberAcquiredBarrier(Mockito.eq(operationName), Mockito.anyString());<a name="line.297"></a> |
| <span class="sourceLineNo">298</span><a name="line.298"></a> |
| <span class="sourceLineNo">299</span> // kick off the commit phase<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> controller.sendGlobalBarrierReached(p, expected);<a name="line.300"></a> |
| <span class="sourceLineNo">301</span><a name="line.301"></a> |
| <span class="sourceLineNo">302</span> // post the committed node for each expected node<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> for (ZKProcedureMemberRpcs cc : cohortControllers) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> cc.sendMemberCompleted(sub, memberData);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span><a name="line.306"></a> |
| <span class="sourceLineNo">307</span> // wait for all commit notifications to reach the coordiantor<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> committed.await();<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> // make sure we got the all the nodes and no more<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> Mockito.verify(coordinator, times(expected.size())).memberFinishedBarrier(<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> Mockito.eq(operationName), Mockito.anyString(), Mockito.eq(memberData));<a name="line.311"></a> |
| <span class="sourceLineNo">312</span><a name="line.312"></a> |
| <span class="sourceLineNo">313</span> controller.resetMembers(p);<a name="line.313"></a> |
| <span class="sourceLineNo">314</span><a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // verify all behavior<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> verifyZooKeeperClean(operationName, watcher, controller.getZkProcedureUtil());<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> verifyCohort(member, cohortControllers.size(), operationName, data);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> verifyCoordinator(operationName, coordinator, expected);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span><a name="line.320"></a> |
| <span class="sourceLineNo">321</span> /**<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> * n * @return a mock {@link ProcedureCoordinator} that just counts down the prepared and<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * committed latch for called to the respective method<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> */<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> private ProcedureCoordinator setupMockCoordinator(String operationName,<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> final CountDownLatch prepared, final CountDownLatch committed,<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> final ArrayList<byte[]> dataFromMembers) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> ProcedureCoordinator coordinator = Mockito.mock(ProcedureCoordinator.class);<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> Mockito.doAnswer(new Answer<Void>() {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> @Override<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> public Void answer(InvocationOnMock invocation) throws Throwable {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> prepared.countDown();<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> return null;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }).when(coordinator).memberAcquiredBarrier(Mockito.eq(operationName), Mockito.anyString());<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> Mockito.doAnswer(new Answer<Void>() {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> @Override<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> public Void answer(InvocationOnMock invocation) throws Throwable {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> dataFromMembers.add(memberData);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> committed.countDown();<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> return null;<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }).when(coordinator).memberFinishedBarrier(Mockito.eq(operationName), Mockito.anyString(),<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> Mockito.eq(memberData));<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> return coordinator;<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> * Verify that the prepare, commit and abort nodes for the operation are removed from zookeeper<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> */<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> private void verifyZooKeeperClean(String operationName, ZKWatcher watcher,<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> ZKProcedureUtil controller) throws Exception {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> String prepare = ZKProcedureUtil.getAcquireBarrierNode(controller, operationName);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> String commit = ZKProcedureUtil.getReachedBarrierNode(controller, operationName);<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> String abort = ZKProcedureUtil.getAbortNode(controller, operationName);<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> assertEquals("Didn't delete prepare node", -1, ZKUtil.checkExists(watcher, prepare));<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> assertEquals("Didn't delete commit node", -1, ZKUtil.checkExists(watcher, commit));<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> assertEquals("Didn't delete abort node", -1, ZKUtil.checkExists(watcher, abort));<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> |
| <span class="sourceLineNo">361</span> /**<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> * Verify the cohort controller got called once per expected node to start the operation<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> */<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> private void verifyCohort(ProcedureMember member, int cohortSize, String operationName,<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> byte[] data) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> // verify(member, Mockito.times(cohortSize)).submitSubprocedure(Mockito.eq(operationName),<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> // (byte[]) Mockito.argThat(new ArrayEquals(data)));<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> Mockito.verify(member, Mockito.atLeast(cohortSize)).submitSubprocedure(Mockito.any());<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> /**<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> * Verify that the coordinator only got called once for each expected node<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> */<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> private void verifyCoordinator(String operationName, ProcedureCoordinator coordinator,<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> List<String> expected) {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> // verify that we got all the expected nodes<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> for (String node : expected) {<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> verify(coordinator, once).memberAcquiredBarrier(operationName, node);<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> verify(coordinator, once).memberFinishedBarrier(operationName, node, memberData);<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> }<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> }<a name="line.382"></a> |
| <span class="sourceLineNo">383</span><a name="line.383"></a> |
| <span class="sourceLineNo">384</span> /**<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> * Specify how the controllers that should be started (not spy/mockable) for the test.<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> */<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> private abstract class StartControllers {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> public abstract Pair<ZKProcedureCoordinator, List<ZKProcedureMemberRpcs>> start(<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> ZKWatcher watcher, String operationName, ProcedureCoordinator coordinator,<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> String controllerName, ProcedureMember member, List<String> cohortNames) throws Exception;<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> }<a name="line.391"></a> |
| <span class="sourceLineNo">392</span><a name="line.392"></a> |
| <span class="sourceLineNo">393</span> private final StartControllers startCoordinatorFirst = new StartControllers() {<a name="line.393"></a> |
| <span class="sourceLineNo">394</span><a name="line.394"></a> |
| <span class="sourceLineNo">395</span> @Override<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> public Pair<ZKProcedureCoordinator, List<ZKProcedureMemberRpcs>> start(ZKWatcher watcher,<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> String operationName, ProcedureCoordinator coordinator, String controllerName,<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> ProcedureMember member, List<String> expected) throws Exception {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> // start the controller<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> ZKProcedureCoordinator controller =<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> new ZKProcedureCoordinator(watcher, operationName, CONTROLLER_NODE_NAME);<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> controller.start(coordinator);<a name="line.402"></a> |
| <span class="sourceLineNo">403</span><a name="line.403"></a> |
| <span class="sourceLineNo">404</span> // make a cohort controller for each expected node<a name="line.404"></a> |
| <span class="sourceLineNo">405</span><a name="line.405"></a> |
| <span class="sourceLineNo">406</span> List<ZKProcedureMemberRpcs> cohortControllers = new ArrayList<>();<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> for (String nodeName : expected) {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> ZKProcedureMemberRpcs cc = new ZKProcedureMemberRpcs(watcher, operationName);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> cc.start(nodeName, member);<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> cohortControllers.add(cc);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> return new Pair<>(controller, cohortControllers);<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> }<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> };<a name="line.414"></a> |
| <span class="sourceLineNo">415</span><a name="line.415"></a> |
| <span class="sourceLineNo">416</span> /**<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> * Check for the possible race condition where a cohort member starts after the controller and<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> * therefore could miss a new operation<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> */<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> private final StartControllers startCohortFirst = new StartControllers() {<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> @Override<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> public Pair<ZKProcedureCoordinator, List<ZKProcedureMemberRpcs>> start(ZKWatcher watcher,<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> String operationName, ProcedureCoordinator coordinator, String controllerName,<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> ProcedureMember member, List<String> expected) throws Exception {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span><a name="line.426"></a> |
| <span class="sourceLineNo">427</span> // make a cohort controller for each expected node<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> List<ZKProcedureMemberRpcs> cohortControllers = new ArrayList<>();<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> for (String nodeName : expected) {<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> ZKProcedureMemberRpcs cc = new ZKProcedureMemberRpcs(watcher, operationName);<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> cc.start(nodeName, member);<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> cohortControllers.add(cc);<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span><a name="line.434"></a> |
| <span class="sourceLineNo">435</span> // start the controller<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> ZKProcedureCoordinator controller =<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> new ZKProcedureCoordinator(watcher, operationName, CONTROLLER_NODE_NAME);<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> controller.start(coordinator);<a name="line.438"></a> |
| <span class="sourceLineNo">439</span><a name="line.439"></a> |
| <span class="sourceLineNo">440</span> return new Pair<>(controller, cohortControllers);<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> }<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> };<a name="line.442"></a> |
| <span class="sourceLineNo">443</span>}<a name="line.443"></a> |
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| </html> |
