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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 static junit.framework.TestCase.assertFalse;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static junit.framework.TestCase.assertNotNull;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.assertEquals;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.junit.Assert.assertNotEquals;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.junit.Assert.assertTrue;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span><a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.io.IOException;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.List;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.NoSuchElementException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Objects;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.TimeUnit;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.CatalogFamilyFormat;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HBaseServerBase;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HConstants;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ServerName;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.SingleProcessHBaseCluster;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.TableName;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.TableNameTestRule;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.Result;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Table;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.HMaster;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.JVMClusterUtil;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.junit.ClassRule;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.junit.Rule;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.junit.Test;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.junit.experimental.categories.Category;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.junit.runner.RunWith;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.junit.runners.Parameterized;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.slf4j.Logger;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.slf4j.LoggerFactory;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span>/**<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * Test of the HBCK-version of SCP. The HBCKSCP is an SCP only it reads hbase:meta for list of<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Regions that were on the server-to-process rather than consult Master in-memory-state.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>@Category({ MasterTests.class, LargeTests.class })<a name="line.72"></a> |
| <span class="sourceLineNo">073</span>@RunWith(Parameterized.class)<a name="line.73"></a> |
| <span class="sourceLineNo">074</span>public class TestHBCKSCP extends TestSCPBase {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private static final Logger LOG = LoggerFactory.getLogger(TestHBCKSCP.class);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> @ClassRule<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> HBaseClassTestRule.forClass(TestHBCKSCP.class);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> @Rule<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> public TableNameTestRule tableNameTestRule = new TableNameTestRule();<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private final int replicas;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private final HBCKSCPScheduler hbckscpScheduler;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private final RegionSelector regionSelector;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> public TestHBCKSCP(final int replicas, final HBCKSCPScheduler hbckscpScheduler,<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> final RegionSelector regionSelector) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> this.replicas = replicas;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> this.hbckscpScheduler = hbckscpScheduler;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> this.regionSelector = regionSelector;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> @Parameterized.Parameters(name = "replicas:{0} scheduler:{1} selector:{2}")<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> public static Object[][] params() {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> return new Object[][] {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> { 1, new ScheduleServerCrashProcedure(), new PrimaryNotMetaRegionSelector() },<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> { 3, new ScheduleServerCrashProcedure(), new ReplicaNonMetaRegionSelector() },<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> { 1, new ScheduleSCPsForUnknownServers(), new PrimaryNotMetaRegionSelector() },<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> { 3, new ScheduleSCPsForUnknownServers(), new ReplicaNonMetaRegionSelector() } };<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span><a name="line.102"></a> |
| <span class="sourceLineNo">103</span> @Test<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public void test() throws Exception {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // we are about to do one for it?<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> SingleProcessHBaseCluster cluster = this.util.getHBaseCluster();<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // Assert that we have three RegionServers. Test depends on there being multiple.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> assertEquals(RS_COUNT, cluster.getLiveRegionServerThreads().size());<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> int count;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> try (Table table = createTable(tableNameTestRule.getTableName())) {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> // Load the table with a bit of data so some logs to split and some edits in each region.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> this.util.loadTable(table, HBaseTestingUtil.COLUMNS[0]);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> count = HBaseTestingUtil.countRows(table);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> assertTrue("expected some rows", count > 0);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> // Make the test easier by not working on server hosting meta...<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> // Find another RS. Purge it from Master memory w/o running SCP (if<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // SCP runs, it will clear entries from hbase:meta which frustrates<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // our attempt at manufacturing 'Unknown Servers' condition).<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> final ServerName metaServer = util.getMiniHBaseCluster().getServerHoldingMeta();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> final ServerName rsServerName = cluster.getRegionServerThreads().stream()<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> .map(JVMClusterUtil.RegionServerThread::getRegionServer).map(HBaseServerBase::getServerName)<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> .filter(sn -> !sn.equals(metaServer)).findAny().orElseThrow(() -> new NoSuchElementException(<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> "Cannot locate a region server that is not hosting meta."));<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> HMaster master = cluster.getMaster();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // Get a Region that is on the server.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> final List<RegionInfo> regions = master.getAssignmentManager().getRegionsOnServer(rsServerName);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> LOG.debug("{} is holding {} regions.", rsServerName, regions.size());<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> final RegionInfo rsRI =<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> regions.stream().peek(info -> LOG.debug("{}", info)).filter(regionSelector::regionFilter)<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> .findAny().orElseThrow(regionSelector::regionFilterFailure);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> final int replicaId = rsRI.getReplicaId();<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> Result r = MetaTableAccessor.getRegionResult(master.getConnection(), rsRI);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // Assert region is OPEN.<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> assertEquals(RegionState.State.OPEN.toString(), Bytes.toString(<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> r.getValue(HConstants.CATALOG_FAMILY, CatalogFamilyFormat.getRegionStateColumn(replicaId))));<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> ServerName serverName = CatalogFamilyFormat.getServerName(r, replicaId);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> assertEquals(rsServerName, serverName);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // moveFrom adds to dead servers and adds it to processing list only we will<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // not be processing this server 'normally'. Remove it from processing by<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // calling 'finish' and then remove it from dead servers so rsServerName<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // becomes an 'Unknown Server' even though it is still around.<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> LOG.info("Killing {}", rsServerName);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> cluster.killRegionServer(rsServerName);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> master.getServerManager().moveFromOnlineToDeadServers(rsServerName);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> master.getServerManager().getDeadServers().removeDeadServer(rsServerName);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> master.getAssignmentManager().getRegionStates().removeServer(rsServerName);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // Kill the server. Nothing should happen since an 'Unknown Server' as far<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> // as the Master is concerned; i.e. no SCP.<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> HRegionServer hrs = cluster.getRegionServer(rsServerName);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> util.waitFor(TimeUnit.MINUTES.toMillis(1), hrs::isStopped);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> LOG.info("Dead {}", rsServerName);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> // Now assert still references in hbase:meta to the 'dead' server -- they haven't been<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> // cleaned up by an SCP or by anything else.<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> assertTrue(searchMeta(master, rsServerName));<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> // Assert region is OPEN on dead server still.<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> r = MetaTableAccessor.getRegionResult(master.getConnection(), rsRI);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> assertEquals(RegionState.State.OPEN.toString(), Bytes.toString(<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> r.getValue(HConstants.CATALOG_FAMILY, CatalogFamilyFormat.getRegionStateColumn(replicaId))));<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> serverName = CatalogFamilyFormat.getServerName(r, replicaId);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> assertNotNull(cluster.getRegionServer(serverName));<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> assertEquals(rsServerName, serverName);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> // I now have 'Unknown Server' references in hbase:meta; i.e. Server references<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> // with no corresponding SCP. Queue one.<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> long pid = scheduleHBCKSCP(rsServerName, master);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> assertNotEquals(Procedure.NO_PROC_ID, pid);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> ProcedureTestingUtility.waitProcedure(master.getMasterProcedureExecutor(), pid);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> // After SCP, assert region is OPEN on new server.<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> r = MetaTableAccessor.getRegionResult(master.getConnection(), rsRI);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> assertEquals(RegionState.State.OPEN.toString(), Bytes.toString(<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> r.getValue(HConstants.CATALOG_FAMILY, CatalogFamilyFormat.getRegionStateColumn(replicaId))));<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> serverName = CatalogFamilyFormat.getServerName(r, 0);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> assertNotNull(cluster.getRegionServer(serverName));<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> assertNotEquals(rsServerName, serverName);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> // Make sure no mention of old server post SCP.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> assertFalse(searchMeta(master, rsServerName));<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> protected long scheduleHBCKSCP(ServerName rsServerName, HMaster master) throws ServiceException {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> return hbckscpScheduler.scheduleHBCKSCP(rsServerName, master);<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> @Override<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> protected int getRegionReplication() {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> return replicas;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> /** Returns True if we find reference to <code>sn</code> in meta table. */<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> private boolean searchMeta(HMaster master, ServerName sn) throws IOException {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> List<Pair<RegionInfo, ServerName>> ps =<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> MetaTableAccessor.getTableRegionsAndLocations(master.getConnection(), null);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> for (Pair<RegionInfo, ServerName> p : ps) {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> if (p.getSecond().equals(sn)) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> return true;<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> return false;<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> /**<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * Encapsulates the choice of which HBCK2 method to call.<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> private abstract static class HBCKSCPScheduler {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> abstract long scheduleHBCKSCP(ServerName rsServerName, HMaster master) throws ServiceException;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> @Override<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> public String toString() {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> return this.getClass().getSimpleName();<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<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> * Invokes {@code MasterRpcServices#scheduleServerCrashProcedure}.<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> */<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> private static class ScheduleServerCrashProcedure extends HBCKSCPScheduler {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> @Override<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> public long scheduleHBCKSCP(ServerName rsServerName, HMaster master) throws ServiceException {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> MasterProtos.ScheduleServerCrashProcedureResponse response = master.getMasterRpcServices()<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> .scheduleServerCrashProcedure(null, MasterProtos.ScheduleServerCrashProcedureRequest<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> .newBuilder().addServerName(ProtobufUtil.toServerName(rsServerName)).build());<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> assertEquals(1, response.getPidCount());<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return response.getPid(0);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<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> * Invokes {@code MasterRpcServices#scheduleSCPsForUnknownServers}.<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> */<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> private static class ScheduleSCPsForUnknownServers extends HBCKSCPScheduler {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> @Override<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> long scheduleHBCKSCP(ServerName rsServerName, HMaster master) throws ServiceException {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> MasterProtos.ScheduleSCPsForUnknownServersResponse response =<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> master.getMasterRpcServices().scheduleSCPsForUnknownServers(null,<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> MasterProtos.ScheduleSCPsForUnknownServersRequest.newBuilder().build());<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> assertEquals(1, response.getPidCount());<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> return response.getPid(0);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> /**<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> * Encapsulates how the target region is selected.<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> */<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> private static abstract class RegionSelector {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> abstract boolean regionFilter(RegionInfo info);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> abstract Exception regionFilterFailure();<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> @Override<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> public String toString() {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return this.getClass().getSimpleName();<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> }<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> /**<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * Selects a non-meta region that is also a primary region.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> */<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> private static class PrimaryNotMetaRegionSelector extends RegionSelector {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> @Override<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> boolean regionFilter(final RegionInfo info) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> return !Objects.equals(TableName.META_TABLE_NAME, info.getTable())<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> && Objects.equals(RegionInfo.DEFAULT_REPLICA_ID, info.getReplicaId());<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> }<a name="line.267"></a> |
| <span class="sourceLineNo">268</span><a name="line.268"></a> |
| <span class="sourceLineNo">269</span> @Override<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> Exception regionFilterFailure() {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> return new NoSuchElementException("Cannot locate a primary, non-meta region.");<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> }<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> }<a name="line.273"></a> |
| <span class="sourceLineNo">274</span><a name="line.274"></a> |
| <span class="sourceLineNo">275</span> /**<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * Selects a non-meta region that is also a replica region.<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> */<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> private static class ReplicaNonMetaRegionSelector extends RegionSelector {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> @Override<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> boolean regionFilter(RegionInfo info) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> return !Objects.equals(TableName.META_TABLE_NAME, info.getTable())<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> && !Objects.equals(RegionInfo.DEFAULT_REPLICA_ID, info.getReplicaId());<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> @Override<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> Exception regionFilterFailure() {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> return new NoSuchElementException("Cannot locate a replica, non-meta region.");<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span>}<a name="line.290"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
