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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.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.mockito.Mockito.mock;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.mockito.Mockito.when;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.HashMap;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.HashSet;<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.Map;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Random;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.TreeMap;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.conf.Configuration;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ClusterMetrics;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.HConstants;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.RegionMetrics;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.ServerMetrics;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.ServerName;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.Size;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.TableName;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.junit.BeforeClass;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.junit.ClassRule;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.junit.Test;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.junit.experimental.categories.Category;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.slf4j.Logger;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.slf4j.LoggerFactory;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span>@Category({ LargeTests.class })<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>public class TestCacheAwareLoadBalancer extends BalancerTestBase {<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(TestCacheAwareLoadBalancer.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(TestCacheAwareLoadBalancer.class);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static CacheAwareLoadBalancer loadBalancer;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> static List<ServerName> servers;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> static List<TableDescriptor> tableDescs;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> static Map<TableName, String> tableMap = new HashMap<>();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> static TableName[] tables = new TableName[] { TableName.valueOf("dt1"), TableName.valueOf("dt2"),<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> TableName.valueOf("dt3"), TableName.valueOf("dt4") };<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private static List<ServerName> generateServers(int numServers) {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> List<ServerName> servers = new ArrayList<>(numServers);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> Random rand = ThreadLocalRandom.current();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> for (int i = 0; i < numServers; i++) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> String host = "server" + rand.nextInt(100000);<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> int port = rand.nextInt(60000);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> servers.add(ServerName.valueOf(host, port, -1));<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> return servers;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private static List<TableDescriptor> constructTableDesc(boolean hasBogusTable) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> List<TableDescriptor> tds = Lists.newArrayList();<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> for (int i = 0; i < tables.length; i++) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> TableDescriptor htd = TableDescriptorBuilder.newBuilder(tables[i]).build();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> tds.add(htd);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> return tds;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> private ServerMetrics mockServerMetricsWithRegionCacheInfo(ServerName server,<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> List<RegionInfo> regionsOnServer, float currentCacheRatio, List<RegionInfo> oldRegionCacheInfo,<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> int oldRegionCachedSize, int regionSize) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> ServerMetrics serverMetrics = mock(ServerMetrics.class);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> Map<byte[], RegionMetrics> regionLoadMap = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> for (RegionInfo info : regionsOnServer) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> RegionMetrics rl = mock(RegionMetrics.class);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> when(rl.getReadRequestCount()).thenReturn(0L);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> when(rl.getWriteRequestCount()).thenReturn(0L);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> when(rl.getMemStoreSize()).thenReturn(Size.ZERO);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> when(rl.getStoreFileSize()).thenReturn(Size.ZERO);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> when(rl.getCurrentRegionCachedRatio()).thenReturn(currentCacheRatio);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> when(rl.getRegionSizeMB()).thenReturn(new Size(regionSize, Size.Unit.MEGABYTE));<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> regionLoadMap.put(info.getRegionName(), rl);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> when(serverMetrics.getRegionMetrics()).thenReturn(regionLoadMap);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Map<String, Integer> oldCacheRatioMap = new HashMap<>();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> for (RegionInfo info : oldRegionCacheInfo) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> oldCacheRatioMap.put(info.getEncodedName(), oldRegionCachedSize);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> when(serverMetrics.getRegionCachedInfo()).thenReturn(oldCacheRatioMap);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return serverMetrics;<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> @BeforeClass<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> public static void beforeAllTests() throws Exception {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> servers = generateServers(3);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> tableDescs = constructTableDesc(false);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> Configuration conf = HBaseConfiguration.create();<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> conf.set(HConstants.BUCKET_CACHE_PERSISTENT_PATH_KEY, "prefetch_file_list");<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> loadBalancer = new CacheAwareLoadBalancer();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> loadBalancer.setClusterInfoProvider(new DummyClusterInfoProvider(conf));<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> loadBalancer.loadConf(conf);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> @Test<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> public void testRegionsNotCachedOnOldServerAndCurrentServer() throws Exception {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> // The regions are not cached on old server as well as the current server. This causes<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // skewness in the region allocation which should be fixed by the balancer<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<>();<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> ServerName server0 = servers.get(0);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> ServerName server1 = servers.get(1);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> ServerName server2 = servers.get(2);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Simulate that the regions previously hosted by server1 are now hosted on server0<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> List<RegionInfo> regionsOnServer0 = randomRegions(10);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> List<RegionInfo> regionsOnServer1 = randomRegions(0);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> List<RegionInfo> regionsOnServer2 = randomRegions(5);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> clusterState.put(server0, regionsOnServer0);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> clusterState.put(server1, regionsOnServer1);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> clusterState.put(server2, regionsOnServer2);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // Mock cluster metrics<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> serverMetricsMap.put(server0, mockServerMetricsWithRegionCacheInfo(server0, regionsOnServer0,<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> serverMetricsMap.put(server1, mockServerMetricsWithRegionCacheInfo(server1, regionsOnServer1,<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> serverMetricsMap.put(server2, mockServerMetricsWithRegionCacheInfo(server2, regionsOnServer2,<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> ClusterMetrics clusterMetrics = mock(ClusterMetrics.class);<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> when(clusterMetrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> loadBalancer.updateClusterMetrics(clusterMetrics);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> Set<RegionInfo> regionsMovedFromServer0 = new HashSet<>();<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> Map<ServerName, List<RegionInfo>> targetServers = new HashMap<>();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> for (RegionPlan plan : plans) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> if (plan.getSource().equals(server0)) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> regionsMovedFromServer0.add(plan.getRegionInfo());<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> if (!targetServers.containsKey(plan.getDestination())) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> targetServers.put(plan.getDestination(), new ArrayList<>());<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> targetServers.get(plan.getDestination()).add(plan.getRegionInfo());<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> // should move 5 regions from server0 to server 1<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> assertEquals(5, regionsMovedFromServer0.size());<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> assertEquals(5, targetServers.get(server1).size());<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> @Test<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> public void testRegionsPartiallyCachedOnOldServerAndNotCachedOnCurrentServer() throws Exception {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> // The regions are partially cached on old server but not cached on the current server<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<>();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> ServerName server0 = servers.get(0);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> ServerName server1 = servers.get(1);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> ServerName server2 = servers.get(2);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span><a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // Simulate that the regions previously hosted by server1 are now hosted on server0<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> List<RegionInfo> regionsOnServer0 = randomRegions(10);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> List<RegionInfo> regionsOnServer1 = randomRegions(0);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> List<RegionInfo> regionsOnServer2 = randomRegions(5);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> clusterState.put(server0, regionsOnServer0);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> clusterState.put(server1, regionsOnServer1);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> clusterState.put(server2, regionsOnServer2);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> // Mock cluster metrics<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> // Mock 5 regions from server0 were previously hosted on server1<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> List<RegionInfo> oldCachedRegions = regionsOnServer0.subList(5, regionsOnServer0.size() - 1);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span><a name="line.205"></a> |
| <span class="sourceLineNo">206</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> serverMetricsMap.put(server0, mockServerMetricsWithRegionCacheInfo(server0, regionsOnServer0,<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> serverMetricsMap.put(server1, mockServerMetricsWithRegionCacheInfo(server1, regionsOnServer1,<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> 0.0f, oldCachedRegions, 6, 10));<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> serverMetricsMap.put(server2, mockServerMetricsWithRegionCacheInfo(server2, regionsOnServer2,<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> ClusterMetrics clusterMetrics = mock(ClusterMetrics.class);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> when(clusterMetrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> loadBalancer.updateClusterMetrics(clusterMetrics);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span><a name="line.216"></a> |
| <span class="sourceLineNo">217</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> Set<RegionInfo> regionsMovedFromServer0 = new HashSet<>();<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> Map<ServerName, List<RegionInfo>> targetServers = new HashMap<>();<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> for (RegionPlan plan : plans) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> if (plan.getSource().equals(server0)) {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> regionsMovedFromServer0.add(plan.getRegionInfo());<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> if (!targetServers.containsKey(plan.getDestination())) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> targetServers.put(plan.getDestination(), new ArrayList<>());<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> targetServers.get(plan.getDestination()).add(plan.getRegionInfo());<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> // should move 5 regions from server0 to server1<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> assertEquals(5, regionsMovedFromServer0.size());<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> assertEquals(5, targetServers.get(server1).size());<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> assertTrue(targetServers.get(server1).containsAll(oldCachedRegions));<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> @Test<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public void testRegionsFullyCachedOnOldServerAndNotCachedOnCurrentServers() throws Exception {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> // The regions are fully cached on old server<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<>();<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> ServerName server0 = servers.get(0);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> ServerName server1 = servers.get(1);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> ServerName server2 = servers.get(2);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> // Simulate that the regions previously hosted by server1 are now hosted on server0<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> List<RegionInfo> regionsOnServer0 = randomRegions(10);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> List<RegionInfo> regionsOnServer1 = randomRegions(0);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> List<RegionInfo> regionsOnServer2 = randomRegions(5);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> clusterState.put(server0, regionsOnServer0);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> clusterState.put(server1, regionsOnServer1);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> clusterState.put(server2, regionsOnServer2);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> // Mock cluster metrics<a name="line.255"></a> |
| <span class="sourceLineNo">256</span><a name="line.256"></a> |
| <span class="sourceLineNo">257</span> // Mock 5 regions from server0 were previously hosted on server1<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> List<RegionInfo> oldCachedRegions = regionsOnServer0.subList(5, regionsOnServer0.size() - 1);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> serverMetricsMap.put(server0, mockServerMetricsWithRegionCacheInfo(server0, regionsOnServer0,<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> serverMetricsMap.put(server1, mockServerMetricsWithRegionCacheInfo(server1, regionsOnServer1,<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> 0.0f, oldCachedRegions, 10, 10));<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> serverMetricsMap.put(server2, mockServerMetricsWithRegionCacheInfo(server2, regionsOnServer2,<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> 0.0f, new ArrayList<>(), 0, 10));<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> ClusterMetrics clusterMetrics = mock(ClusterMetrics.class);<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> when(clusterMetrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> loadBalancer.updateClusterMetrics(clusterMetrics);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> Set<RegionInfo> regionsMovedFromServer0 = new HashSet<>();<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> Map<ServerName, List<RegionInfo>> targetServers = new HashMap<>();<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> for (RegionPlan plan : plans) {<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> if (plan.getSource().equals(server0)) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> regionsMovedFromServer0.add(plan.getRegionInfo());<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> if (!targetServers.containsKey(plan.getDestination())) {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> targetServers.put(plan.getDestination(), new ArrayList<>());<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> targetServers.get(plan.getDestination()).add(plan.getRegionInfo());<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> // should move 5 regions from server0 to server1<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> assertEquals(5, regionsMovedFromServer0.size());<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> assertEquals(5, targetServers.get(server1).size());<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> assertTrue(targetServers.get(server1).containsAll(oldCachedRegions));<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> |
| <span class="sourceLineNo">291</span> @Test<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> public void testRegionsFullyCachedOnOldAndCurrentServers() throws Exception {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> // The regions are fully cached on old server<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<>();<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> ServerName server0 = servers.get(0);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> ServerName server1 = servers.get(1);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> ServerName server2 = servers.get(2);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> // Simulate that the regions previously hosted by server1 are now hosted on server0<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> List<RegionInfo> regionsOnServer0 = randomRegions(10);<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> List<RegionInfo> regionsOnServer1 = randomRegions(0);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> List<RegionInfo> regionsOnServer2 = randomRegions(5);<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> clusterState.put(server0, regionsOnServer0);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> clusterState.put(server1, regionsOnServer1);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> clusterState.put(server2, regionsOnServer2);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> // Mock cluster metrics<a name="line.309"></a> |
| <span class="sourceLineNo">310</span><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> // Mock 5 regions from server0 were previously hosted on server1<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> List<RegionInfo> oldCachedRegions = regionsOnServer0.subList(5, regionsOnServer0.size() - 1);<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> serverMetricsMap.put(server0, mockServerMetricsWithRegionCacheInfo(server0, regionsOnServer0,<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> 1.0f, new ArrayList<>(), 0, 10));<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> serverMetricsMap.put(server1, mockServerMetricsWithRegionCacheInfo(server1, regionsOnServer1,<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> 1.0f, oldCachedRegions, 10, 10));<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> serverMetricsMap.put(server2, mockServerMetricsWithRegionCacheInfo(server2, regionsOnServer2,<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> 1.0f, new ArrayList<>(), 0, 10));<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> ClusterMetrics clusterMetrics = mock(ClusterMetrics.class);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> when(clusterMetrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> loadBalancer.updateClusterMetrics(clusterMetrics);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> Set<RegionInfo> regionsMovedFromServer0 = new HashSet<>();<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> Map<ServerName, List<RegionInfo>> targetServers = new HashMap<>();<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> for (RegionPlan plan : plans) {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> if (plan.getSource().equals(server0)) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> regionsMovedFromServer0.add(plan.getRegionInfo());<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> if (!targetServers.containsKey(plan.getDestination())) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> targetServers.put(plan.getDestination(), new ArrayList<>());<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> targetServers.get(plan.getDestination()).add(plan.getRegionInfo());<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> }<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> // should move 5 regions from server0 to server1<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> assertEquals(5, regionsMovedFromServer0.size());<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> assertEquals(5, targetServers.get(server1).size());<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> assertTrue(targetServers.get(server1).containsAll(oldCachedRegions));<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span><a name="line.344"></a> |
| <span class="sourceLineNo">345</span> @Test<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> public void testRegionsPartiallyCachedOnOldServerAndCurrentServer() throws Exception {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> // The regions are partially cached on old server<a name="line.347"></a> |
| <span class="sourceLineNo">348</span><a name="line.348"></a> |
| <span class="sourceLineNo">349</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<>();<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> ServerName server0 = servers.get(0);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> ServerName server1 = servers.get(1);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> ServerName server2 = servers.get(2);<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> // Simulate that the regions previously hosted by server1 are now hosted on server0<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> List<RegionInfo> regionsOnServer0 = randomRegions(10);<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> List<RegionInfo> regionsOnServer1 = randomRegions(0);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> List<RegionInfo> regionsOnServer2 = randomRegions(5);<a name="line.357"></a> |
| <span class="sourceLineNo">358</span><a name="line.358"></a> |
| <span class="sourceLineNo">359</span> clusterState.put(server0, regionsOnServer0);<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> clusterState.put(server1, regionsOnServer1);<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> clusterState.put(server2, regionsOnServer2);<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> // Mock cluster metrics<a name="line.363"></a> |
| <span class="sourceLineNo">364</span><a name="line.364"></a> |
| <span class="sourceLineNo">365</span> // Mock 5 regions from server0 were previously hosted on server1<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> List<RegionInfo> oldCachedRegions = regionsOnServer0.subList(5, regionsOnServer0.size() - 1);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span><a name="line.367"></a> |
| <span class="sourceLineNo">368</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> serverMetricsMap.put(server0, mockServerMetricsWithRegionCacheInfo(server0, regionsOnServer0,<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> 0.2f, new ArrayList<>(), 0, 10));<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> serverMetricsMap.put(server1, mockServerMetricsWithRegionCacheInfo(server1, regionsOnServer1,<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> 0.0f, oldCachedRegions, 6, 10));<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> serverMetricsMap.put(server2, mockServerMetricsWithRegionCacheInfo(server2, regionsOnServer2,<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> 1.0f, new ArrayList<>(), 0, 10));<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> ClusterMetrics clusterMetrics = mock(ClusterMetrics.class);<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> when(clusterMetrics.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> loadBalancer.updateClusterMetrics(clusterMetrics);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span><a name="line.378"></a> |
| <span class="sourceLineNo">379</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> Set<RegionInfo> regionsMovedFromServer0 = new HashSet<>();<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> Map<ServerName, List<RegionInfo>> targetServers = new HashMap<>();<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> for (RegionPlan plan : plans) {<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> if (plan.getSource().equals(server0)) {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> regionsMovedFromServer0.add(plan.getRegionInfo());<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> if (!targetServers.containsKey(plan.getDestination())) {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> targetServers.put(plan.getDestination(), new ArrayList<>());<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> }<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> targetServers.get(plan.getDestination()).add(plan.getRegionInfo());<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> assertEquals(5, regionsMovedFromServer0.size());<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> assertEquals(5, targetServers.get(server1).size());<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> assertTrue(targetServers.get(server1).containsAll(oldCachedRegions));<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> }<a name="line.396"></a> |
| <span class="sourceLineNo">397</span>}<a name="line.397"></a> |
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| </div> |
| </body> |
| </html> |
