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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.master.procedure;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.concurrent.Semaphore;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.TableName;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility.NoopProcedure;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.junit.After;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.junit.AfterClass;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.junit.Before;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.junit.ClassRule;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.junit.Rule;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.junit.Test;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.junit.experimental.categories.Category;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.junit.rules.TestName;<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>@Category({ MasterTests.class, SmallTests.class })<a name="line.43"></a>
<span class="sourceLineNo">044</span>public class TestSchedulerQueueDeadLock {<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span> @ClassRule<a name="line.46"></a>
<span class="sourceLineNo">047</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.47"></a>
<span class="sourceLineNo">048</span> HBaseClassTestRule.forClass(TestSchedulerQueueDeadLock.class);<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span> private static final TableName TABLE_NAME = TableName.valueOf("deadlock");<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span> private static final class TestEnv {<a name="line.54"></a>
<span class="sourceLineNo">055</span> private final MasterProcedureScheduler scheduler;<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span> public TestEnv(MasterProcedureScheduler scheduler) {<a name="line.57"></a>
<span class="sourceLineNo">058</span> this.scheduler = scheduler;<a name="line.58"></a>
<span class="sourceLineNo">059</span> }<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> public MasterProcedureScheduler getScheduler() {<a name="line.61"></a>
<span class="sourceLineNo">062</span> return scheduler;<a name="line.62"></a>
<span class="sourceLineNo">063</span> }<a name="line.63"></a>
<span class="sourceLineNo">064</span> }<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span> public static class TableSharedProcedure extends NoopProcedure&lt;TestEnv&gt;<a name="line.66"></a>
<span class="sourceLineNo">067</span> implements TableProcedureInterface {<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span> private final Semaphore latch = new Semaphore(0);<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span> @Override<a name="line.71"></a>
<span class="sourceLineNo">072</span> protected Procedure&lt;TestEnv&gt;[] execute(TestEnv env)<a name="line.72"></a>
<span class="sourceLineNo">073</span> throws ProcedureYieldException, ProcedureSuspendedException, InterruptedException {<a name="line.73"></a>
<span class="sourceLineNo">074</span> latch.acquire();<a name="line.74"></a>
<span class="sourceLineNo">075</span> return null;<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> @Override<a name="line.78"></a>
<span class="sourceLineNo">079</span> protected LockState acquireLock(TestEnv env) {<a name="line.79"></a>
<span class="sourceLineNo">080</span> if (env.getScheduler().waitTableSharedLock(this, getTableName())) {<a name="line.80"></a>
<span class="sourceLineNo">081</span> return LockState.LOCK_EVENT_WAIT;<a name="line.81"></a>
<span class="sourceLineNo">082</span> }<a name="line.82"></a>
<span class="sourceLineNo">083</span> return LockState.LOCK_ACQUIRED;<a name="line.83"></a>
<span class="sourceLineNo">084</span> }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span> @Override<a name="line.86"></a>
<span class="sourceLineNo">087</span> protected void releaseLock(TestEnv env) {<a name="line.87"></a>
<span class="sourceLineNo">088</span> env.getScheduler().wakeTableSharedLock(this, getTableName());<a name="line.88"></a>
<span class="sourceLineNo">089</span> }<a name="line.89"></a>
<span class="sourceLineNo">090</span><a name="line.90"></a>
<span class="sourceLineNo">091</span> @Override<a name="line.91"></a>
<span class="sourceLineNo">092</span> protected boolean holdLock(TestEnv env) {<a name="line.92"></a>
<span class="sourceLineNo">093</span> return true;<a name="line.93"></a>
<span class="sourceLineNo">094</span> }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span> @Override<a name="line.96"></a>
<span class="sourceLineNo">097</span> public TableName getTableName() {<a name="line.97"></a>
<span class="sourceLineNo">098</span> return TABLE_NAME;<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> @Override<a name="line.101"></a>
<span class="sourceLineNo">102</span> public TableOperationType getTableOperationType() {<a name="line.102"></a>
<span class="sourceLineNo">103</span> return TableOperationType.READ;<a name="line.103"></a>
<span class="sourceLineNo">104</span> }<a name="line.104"></a>
<span class="sourceLineNo">105</span> }<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span> public static class TableExclusiveProcedure extends NoopProcedure&lt;TestEnv&gt;<a name="line.107"></a>
<span class="sourceLineNo">108</span> implements TableProcedureInterface {<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span> private final Semaphore latch = new Semaphore(0);<a name="line.110"></a>
<span class="sourceLineNo">111</span><a name="line.111"></a>
<span class="sourceLineNo">112</span> @Override<a name="line.112"></a>
<span class="sourceLineNo">113</span> protected Procedure&lt;TestEnv&gt;[] execute(TestEnv env)<a name="line.113"></a>
<span class="sourceLineNo">114</span> throws ProcedureYieldException, ProcedureSuspendedException, InterruptedException {<a name="line.114"></a>
<span class="sourceLineNo">115</span> latch.acquire();<a name="line.115"></a>
<span class="sourceLineNo">116</span> return null;<a name="line.116"></a>
<span class="sourceLineNo">117</span> }<a name="line.117"></a>
<span class="sourceLineNo">118</span><a name="line.118"></a>
<span class="sourceLineNo">119</span> @Override<a name="line.119"></a>
<span class="sourceLineNo">120</span> protected LockState acquireLock(TestEnv env) {<a name="line.120"></a>
<span class="sourceLineNo">121</span> if (env.getScheduler().waitTableExclusiveLock(this, getTableName())) {<a name="line.121"></a>
<span class="sourceLineNo">122</span> return LockState.LOCK_EVENT_WAIT;<a name="line.122"></a>
<span class="sourceLineNo">123</span> }<a name="line.123"></a>
<span class="sourceLineNo">124</span> return LockState.LOCK_ACQUIRED;<a name="line.124"></a>
<span class="sourceLineNo">125</span> }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span> @Override<a name="line.127"></a>
<span class="sourceLineNo">128</span> protected void releaseLock(TestEnv env) {<a name="line.128"></a>
<span class="sourceLineNo">129</span> env.getScheduler().wakeTableExclusiveLock(this, getTableName());<a name="line.129"></a>
<span class="sourceLineNo">130</span> }<a name="line.130"></a>
<span class="sourceLineNo">131</span><a name="line.131"></a>
<span class="sourceLineNo">132</span> @Override<a name="line.132"></a>
<span class="sourceLineNo">133</span> protected boolean holdLock(TestEnv env) {<a name="line.133"></a>
<span class="sourceLineNo">134</span> return true;<a name="line.134"></a>
<span class="sourceLineNo">135</span> }<a name="line.135"></a>
<span class="sourceLineNo">136</span><a name="line.136"></a>
<span class="sourceLineNo">137</span> @Override<a name="line.137"></a>
<span class="sourceLineNo">138</span> public TableName getTableName() {<a name="line.138"></a>
<span class="sourceLineNo">139</span> return TABLE_NAME;<a name="line.139"></a>
<span class="sourceLineNo">140</span> }<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> @Override<a name="line.142"></a>
<span class="sourceLineNo">143</span> public TableOperationType getTableOperationType() {<a name="line.143"></a>
<span class="sourceLineNo">144</span> return TableOperationType.EDIT;<a name="line.144"></a>
<span class="sourceLineNo">145</span> }<a name="line.145"></a>
<span class="sourceLineNo">146</span> }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span> @AfterClass<a name="line.148"></a>
<span class="sourceLineNo">149</span> public static void tearDownAfterClass() throws IOException {<a name="line.149"></a>
<span class="sourceLineNo">150</span> UTIL.cleanupTestDir();<a name="line.150"></a>
<span class="sourceLineNo">151</span> }<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span> private WALProcedureStore procStore;<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span> private ProcedureExecutor&lt;TestEnv&gt; procExec;<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> @Rule<a name="line.157"></a>
<span class="sourceLineNo">158</span> public final TestName name = new TestName();<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> @Before<a name="line.160"></a>
<span class="sourceLineNo">161</span> public void setUp() throws IOException {<a name="line.161"></a>
<span class="sourceLineNo">162</span> UTIL.getConfiguration().setInt("hbase.procedure.worker.stuck.threshold.msec", 6000000);<a name="line.162"></a>
<span class="sourceLineNo">163</span> procStore = ProcedureTestingUtility.createWalStore(UTIL.getConfiguration(),<a name="line.163"></a>
<span class="sourceLineNo">164</span> UTIL.getDataTestDir(name.getMethodName()));<a name="line.164"></a>
<span class="sourceLineNo">165</span> procStore.start(1);<a name="line.165"></a>
<span class="sourceLineNo">166</span> MasterProcedureScheduler scheduler = new MasterProcedureScheduler(pid -&gt; null);<a name="line.166"></a>
<span class="sourceLineNo">167</span> procExec = new ProcedureExecutor&lt;&gt;(UTIL.getConfiguration(), new TestEnv(scheduler), procStore,<a name="line.167"></a>
<span class="sourceLineNo">168</span> scheduler);<a name="line.168"></a>
<span class="sourceLineNo">169</span> procExec.init(1, false);<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> @After<a name="line.172"></a>
<span class="sourceLineNo">173</span> public void tearDown() {<a name="line.173"></a>
<span class="sourceLineNo">174</span> procExec.stop();<a name="line.174"></a>
<span class="sourceLineNo">175</span> procStore.stop(false);<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> public static final class TableSharedProcedureWithId extends TableSharedProcedure {<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span> @Override<a name="line.180"></a>
<span class="sourceLineNo">181</span> protected void setProcId(long procId) {<a name="line.181"></a>
<span class="sourceLineNo">182</span> // this is a hack to make this procedure be loaded after the procedure below as we will sort<a name="line.182"></a>
<span class="sourceLineNo">183</span> // the procedures by id when loading.<a name="line.183"></a>
<span class="sourceLineNo">184</span> super.setProcId(2L);<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> public static final class TableExclusiveProcedureWithId extends TableExclusiveProcedure {<a name="line.188"></a>
<span class="sourceLineNo">189</span><a name="line.189"></a>
<span class="sourceLineNo">190</span> @Override<a name="line.190"></a>
<span class="sourceLineNo">191</span> protected void setProcId(long procId) {<a name="line.191"></a>
<span class="sourceLineNo">192</span> // this is a hack to make this procedure be loaded before the procedure above as we will<a name="line.192"></a>
<span class="sourceLineNo">193</span> // sort the procedures by id when loading.<a name="line.193"></a>
<span class="sourceLineNo">194</span> super.setProcId(1L);<a name="line.194"></a>
<span class="sourceLineNo">195</span> }<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> @Test<a name="line.198"></a>
<span class="sourceLineNo">199</span> public void testTableProcedureDeadLockAfterRestarting() throws Exception {<a name="line.199"></a>
<span class="sourceLineNo">200</span> // let the shared procedure run first, but let it have a greater procId so when loading it will<a name="line.200"></a>
<span class="sourceLineNo">201</span> // be loaded at last.<a name="line.201"></a>
<span class="sourceLineNo">202</span> long procId1 = procExec.submitProcedure(new TableSharedProcedureWithId());<a name="line.202"></a>
<span class="sourceLineNo">203</span> long procId2 = procExec.submitProcedure(new TableExclusiveProcedureWithId());<a name="line.203"></a>
<span class="sourceLineNo">204</span> procExec.startWorkers();<a name="line.204"></a>
<span class="sourceLineNo">205</span> UTIL.waitFor(10000,<a name="line.205"></a>
<span class="sourceLineNo">206</span> () -&gt; ((TableSharedProcedure) procExec.getProcedure(procId1)).latch.hasQueuedThreads());<a name="line.206"></a>
<span class="sourceLineNo">207</span><a name="line.207"></a>
<span class="sourceLineNo">208</span> ProcedureTestingUtility.restart(procExec);<a name="line.208"></a>
<span class="sourceLineNo">209</span><a name="line.209"></a>
<span class="sourceLineNo">210</span> ((TableSharedProcedure) procExec.getProcedure(procId1)).latch.release();<a name="line.210"></a>
<span class="sourceLineNo">211</span> ((TableExclusiveProcedure) procExec.getProcedure(procId2)).latch.release();<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span> UTIL.waitFor(10000, () -&gt; procExec.isFinished(procId1));<a name="line.213"></a>
<span class="sourceLineNo">214</span> UTIL.waitFor(10000, () -&gt; procExec.isFinished(procId2));<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> public static final class TableShardParentProcedure extends NoopProcedure&lt;TestEnv&gt;<a name="line.217"></a>
<span class="sourceLineNo">218</span> implements TableProcedureInterface {<a name="line.218"></a>
<span class="sourceLineNo">219</span><a name="line.219"></a>
<span class="sourceLineNo">220</span> private boolean scheduled;<a name="line.220"></a>
<span class="sourceLineNo">221</span><a name="line.221"></a>
<span class="sourceLineNo">222</span> @Override<a name="line.222"></a>
<span class="sourceLineNo">223</span> protected Procedure&lt;TestEnv&gt;[] execute(TestEnv env)<a name="line.223"></a>
<span class="sourceLineNo">224</span> throws ProcedureYieldException, ProcedureSuspendedException, InterruptedException {<a name="line.224"></a>
<span class="sourceLineNo">225</span> if (!scheduled) {<a name="line.225"></a>
<span class="sourceLineNo">226</span> scheduled = true;<a name="line.226"></a>
<span class="sourceLineNo">227</span> return new Procedure[] { new TableSharedProcedure() };<a name="line.227"></a>
<span class="sourceLineNo">228</span> }<a name="line.228"></a>
<span class="sourceLineNo">229</span> return null;<a name="line.229"></a>
<span class="sourceLineNo">230</span> }<a name="line.230"></a>
<span class="sourceLineNo">231</span><a name="line.231"></a>
<span class="sourceLineNo">232</span> @Override<a name="line.232"></a>
<span class="sourceLineNo">233</span> protected LockState acquireLock(TestEnv env) {<a name="line.233"></a>
<span class="sourceLineNo">234</span> if (env.getScheduler().waitTableSharedLock(this, getTableName())) {<a name="line.234"></a>
<span class="sourceLineNo">235</span> return LockState.LOCK_EVENT_WAIT;<a name="line.235"></a>
<span class="sourceLineNo">236</span> }<a name="line.236"></a>
<span class="sourceLineNo">237</span> return LockState.LOCK_ACQUIRED;<a name="line.237"></a>
<span class="sourceLineNo">238</span> }<a name="line.238"></a>
<span class="sourceLineNo">239</span><a name="line.239"></a>
<span class="sourceLineNo">240</span> @Override<a name="line.240"></a>
<span class="sourceLineNo">241</span> protected void releaseLock(TestEnv env) {<a name="line.241"></a>
<span class="sourceLineNo">242</span> env.getScheduler().wakeTableSharedLock(this, getTableName());<a name="line.242"></a>
<span class="sourceLineNo">243</span> }<a name="line.243"></a>
<span class="sourceLineNo">244</span><a name="line.244"></a>
<span class="sourceLineNo">245</span> @Override<a name="line.245"></a>
<span class="sourceLineNo">246</span> protected boolean holdLock(TestEnv env) {<a name="line.246"></a>
<span class="sourceLineNo">247</span> return true;<a name="line.247"></a>
<span class="sourceLineNo">248</span> }<a name="line.248"></a>
<span class="sourceLineNo">249</span><a name="line.249"></a>
<span class="sourceLineNo">250</span> @Override<a name="line.250"></a>
<span class="sourceLineNo">251</span> public TableName getTableName() {<a name="line.251"></a>
<span class="sourceLineNo">252</span> return TABLE_NAME;<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> @Override<a name="line.255"></a>
<span class="sourceLineNo">256</span> public TableOperationType getTableOperationType() {<a name="line.256"></a>
<span class="sourceLineNo">257</span> return TableOperationType.READ;<a name="line.257"></a>
<span class="sourceLineNo">258</span> }<a name="line.258"></a>
<span class="sourceLineNo">259</span> }<a name="line.259"></a>
<span class="sourceLineNo">260</span><a name="line.260"></a>
<span class="sourceLineNo">261</span> @Test<a name="line.261"></a>
<span class="sourceLineNo">262</span> public void testTableProcedureSubProcedureDeadLock() throws Exception {<a name="line.262"></a>
<span class="sourceLineNo">263</span> // the shared procedure will also schedule a shared procedure, but after the exclusive procedure<a name="line.263"></a>
<span class="sourceLineNo">264</span> long procId1 = procExec.submitProcedure(new TableShardParentProcedure());<a name="line.264"></a>
<span class="sourceLineNo">265</span> long procId2 = procExec.submitProcedure(new TableExclusiveProcedure());<a name="line.265"></a>
<span class="sourceLineNo">266</span> procExec.startWorkers();<a name="line.266"></a>
<span class="sourceLineNo">267</span> UTIL.waitFor(10000,<a name="line.267"></a>
<span class="sourceLineNo">268</span> () -&gt; procExec.getProcedures().stream().anyMatch(p -&gt; p instanceof TableSharedProcedure));<a name="line.268"></a>
<span class="sourceLineNo">269</span> procExec.getProcedures().stream().filter(p -&gt; p instanceof TableSharedProcedure)<a name="line.269"></a>
<span class="sourceLineNo">270</span> .map(p -&gt; (TableSharedProcedure) p).forEach(p -&gt; p.latch.release());<a name="line.270"></a>
<span class="sourceLineNo">271</span> ((TableExclusiveProcedure) procExec.getProcedure(procId2)).latch.release();<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
<span class="sourceLineNo">273</span> UTIL.waitFor(10000, () -&gt; procExec.isFinished(procId1));<a name="line.273"></a>
<span class="sourceLineNo">274</span> UTIL.waitFor(10000, () -&gt; procExec.isFinished(procId2));<a name="line.274"></a>
<span class="sourceLineNo">275</span> }<a name="line.275"></a>
<span class="sourceLineNo">276</span>}<a name="line.276"></a>
</pre>
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