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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.balancer;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.junit.Assert.assertEquals;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertNotNull;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.assertNotSame;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.junit.Assert.assertNull;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.junit.Assert.assertSame;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import static org.junit.Assert.assertTrue;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import static org.mockito.Mockito.mock;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import static org.mockito.Mockito.when;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.io.IOException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.ArrayList;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.HashMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.List;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.Map;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.Random;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.TreeMap;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.conf.Configuration;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ClusterMetrics;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HConstants;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HDFSBlocksDistribution;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HDFSBlocksDistribution.HostAndWeight;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.RegionMetrics;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.ServerMetrics;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.ServerName;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.TableName;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<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.testclassification.SmallTests;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.junit.Before;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.junit.BeforeClass;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.junit.ClassRule;<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><a name="line.58"></a> |
| <span class="sourceLineNo">059</span>@Category({ MasterTests.class, SmallTests.class })<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>public class TestRegionHDFSBlockLocationFinder {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> @ClassRule<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> HBaseClassTestRule.forClass(TestRegionHDFSBlockLocationFinder.class);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private static final Random RNG = new Random(); // This test depends on Random#setSeed<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static TableDescriptor TD;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private static List<RegionInfo> REGIONS;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private RegionHDFSBlockLocationFinder finder;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private static HDFSBlocksDistribution generate(RegionInfo region) {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> HDFSBlocksDistribution distribution = new HDFSBlocksDistribution();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> int seed = region.hashCode();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> RNG.setSeed(seed);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> int size = 1 + RNG.nextInt(10);<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> for (int i = 0; i < size; i++) {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> distribution.addHostsAndBlockWeight(new String[] { "host-" + i }, 1 + RNG.nextInt(100));<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> return distribution;<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> @BeforeClass<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public static void setUpBeforeClass() {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> TD = TableDescriptorBuilder.newBuilder(TableName.valueOf("RegionLocationFinder")).build();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> int numRegions = 100;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> REGIONS = new ArrayList<>(numRegions);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> for (int i = 1; i <= numRegions; i++) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> byte[] startKey = i == 0 ? HConstants.EMPTY_START_ROW : Bytes.toBytes(i);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> byte[] endKey = i == numRegions ? HConstants.EMPTY_BYTE_ARRAY : Bytes.toBytes(i + 1);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> RegionInfo region = RegionInfoBuilder.newBuilder(TD.getTableName()).setStartKey(startKey)<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> .setEndKey(endKey).build();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> REGIONS.add(region);<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><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> @Before<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public void setUp() {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> finder = new RegionHDFSBlockLocationFinder();<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> finder.setClusterInfoProvider(new DummyClusterInfoProvider(null) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> @Override<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public TableDescriptor getTableDescriptor(TableName tableName) throws IOException {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return TD;<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> @Override<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public List<RegionInfo> getAssignedRegions() {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return REGIONS;<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<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> public HDFSBlocksDistribution computeHDFSBlocksDistribution(Configuration conf,<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> TableDescriptor tableDescriptor, RegionInfo regionInfo) throws IOException {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> return generate(regionInfo);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<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><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> @Test<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> public void testMapHostNameToServerName() throws Exception {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> assertTrue(finder.mapHostNameToServerName(null).isEmpty());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> List<String> hosts = new ArrayList<>();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> for (int i = 0; i < 10; i += 2) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> hosts.add("host-" + i);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> assertTrue(finder.mapHostNameToServerName(hosts).isEmpty());<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> Map<ServerName, ServerMetrics> serverMetrics = new HashMap<>();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> for (int i = 0; i < 10; i += 2) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> ServerName sn = ServerName.valueOf("host-" + i, 12345, 12345);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> serverMetrics.put(sn, null);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> ClusterMetrics metrics = mock(ClusterMetrics.class);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> when(metrics.getLiveServerMetrics()).thenReturn(serverMetrics);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> finder.setClusterMetrics(metrics);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> List<ServerName> sns = finder.mapHostNameToServerName(hosts);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> assertEquals(5, sns.size());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> for (int i = 0; i < 5; i++) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> ServerName sn = sns.get(i);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> assertEquals("host-" + (2 * i), sn.getHostname());<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> assertEquals(12345, sn.getPort());<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> assertEquals(12345, sn.getStartcode());<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><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> @Test<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public void testRefreshAndWait() throws Exception {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> finder.getCache().invalidateAll();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> for (RegionInfo region : REGIONS) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> assertNull(finder.getCache().getIfPresent(region));<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> finder.refreshAndWait(REGIONS);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> for (RegionInfo region : REGIONS) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> assertNotNull(finder.getCache().getIfPresent(region));<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> private void assertHostAndWeightEquals(HDFSBlocksDistribution expected,<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> HDFSBlocksDistribution actual) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> Map<String, HostAndWeight> expectedMap = expected.getHostAndWeights();<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> Map<String, HostAndWeight> actualMap = actual.getHostAndWeights();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> assertEquals(expectedMap.size(), actualMap.size());<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> expectedMap.forEach((k, expectedHostAndWeight) -> {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> HostAndWeight actualHostAndWeight = actualMap.get(k);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> assertEquals(expectedHostAndWeight.getHost(), actualHostAndWeight.getHost());<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> assertEquals(expectedHostAndWeight.getWeight(), actualHostAndWeight.getWeight());<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> assertEquals(expectedHostAndWeight.getWeightForSsd(), actualHostAndWeight.getWeightForSsd());<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> });<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> @Test<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> public void testGetBlockDistribution() {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> Map<RegionInfo, HDFSBlocksDistribution> cache = new HashMap<>();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> for (RegionInfo region : REGIONS) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> HDFSBlocksDistribution hbd = finder.getBlockDistribution(region);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> assertHostAndWeightEquals(generate(region), hbd);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> cache.put(region, hbd);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> // the instance should be cached<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> for (RegionInfo region : REGIONS) {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> HDFSBlocksDistribution hbd = finder.getBlockDistribution(region);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> assertSame(cache.get(region), hbd);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> @Test<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> public void testGetTopBlockLocations() {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> Map<ServerName, ServerMetrics> serverMetrics = new HashMap<>();<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> for (int i = 0; i < 10; i++) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> ServerName sn = ServerName.valueOf("host-" + i, 12345, 12345);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> serverMetrics.put(sn, null);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> ClusterMetrics metrics = mock(ClusterMetrics.class);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> when(metrics.getLiveServerMetrics()).thenReturn(serverMetrics);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> finder.setClusterMetrics(metrics);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> for (RegionInfo region : REGIONS) {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> List<ServerName> servers = finder.getTopBlockLocations(region);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> long previousWeight = Long.MAX_VALUE;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> HDFSBlocksDistribution hbd = generate(region);<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> for (ServerName server : servers) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> long weight = hbd.getWeight(server.getHostname());<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> assertTrue(weight <= previousWeight);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> previousWeight = weight;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> @Test<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> public void testRefreshRegionsWithChangedLocality() throws InterruptedException {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> ServerName testServer = ServerName.valueOf("host-0", 12345, 12345);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> RegionInfo testRegion = REGIONS.get(0);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span><a name="line.215"></a> |
| <span class="sourceLineNo">216</span> Map<RegionInfo, HDFSBlocksDistribution> cache = new HashMap<>();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> for (RegionInfo region : REGIONS) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> HDFSBlocksDistribution hbd = finder.getBlockDistribution(region);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> assertHostAndWeightEquals(generate(region), hbd);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> cache.put(region, hbd);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> finder<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> .setClusterMetrics(getMetricsWithLocality(testServer, testRegion.getRegionName(), 0.123f));<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // everything should be cached, because metrics were null before<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> for (RegionInfo region : REGIONS) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> HDFSBlocksDistribution hbd = finder.getBlockDistribution(region);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> assertSame(cache.get(region), hbd);<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> finder<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> .setClusterMetrics(getMetricsWithLocality(testServer, testRegion.getRegionName(), 0.345f));<a name="line.233"></a> |
| <span class="sourceLineNo">234</span><a name="line.234"></a> |
| <span class="sourceLineNo">235</span> // cache refresh happens in a background thread, so we need to wait for the value to<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // update before running assertions.<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> long now = System.currentTimeMillis();<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> HDFSBlocksDistribution cached = cache.get(testRegion);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> HDFSBlocksDistribution newValue;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> do {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> Thread.sleep(1_000);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> newValue = finder.getBlockDistribution(testRegion);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> } while (cached == newValue && System.currentTimeMillis() - now < 30_000);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // locality changed just for our test region, so it should no longer be the same<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> for (RegionInfo region : REGIONS) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> HDFSBlocksDistribution hbd = finder.getBlockDistribution(region);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> if (region.equals(testRegion)) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> assertNotSame(cache.get(region), hbd);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> } else {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> assertSame(cache.get(region), hbd);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> private ClusterMetrics getMetricsWithLocality(ServerName serverName, byte[] region,<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> float locality) {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> RegionMetrics regionMetrics = mock(RegionMetrics.class);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> when(regionMetrics.getDataLocality()).thenReturn(locality);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> Map<byte[], RegionMetrics> regionMetricsMap = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> regionMetricsMap.put(region, regionMetrics);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span><a name="line.263"></a> |
| <span class="sourceLineNo">264</span> ServerMetrics serverMetrics = mock(ServerMetrics.class);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> when(serverMetrics.getRegionMetrics()).thenReturn(regionMetricsMap);<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> Map<ServerName, ServerMetrics> serverMetricsMap = new HashMap<>();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> serverMetricsMap.put(serverName, serverMetrics);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> ClusterMetrics metrics = mock(ClusterMetrics.class);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> when(metrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> return metrics;<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> |
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| </pre> |
| </div> |
| </body> |
| </html> |
