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-<title>Source code</title>
-<link rel="stylesheet" type="text/css"
href="../../../../../../../stylesheet.css" title="Style">
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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.assertNull;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import static
org.junit.Assert.assertTrue;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import static org.mockito.Mockito.mock;<a
name="line.24"></a>
-<span class="sourceLineNo">025</span>import static org.mockito.Mockito.when;<a
name="line.25"></a>
-<span class="sourceLineNo">026</span><a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.ArrayList;<a
name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.HashMap;<a
name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.Iterator;<a
name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.List;<a
name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.Map;<a
name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.Map.Entry;<a
name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.Queue;<a
name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.TreeMap;<a
name="line.34"></a>
-<span class="sourceLineNo">035</span>import
org.apache.hadoop.conf.Configuration;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import
org.apache.hadoop.hbase.ClusterMetrics;<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.RegionMetrics;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import
org.apache.hadoop.hbase.ServerMetrics;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import
org.apache.hadoop.hbase.ServerName;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.Size;<a
name="line.41"></a>
-<span class="sourceLineNo">042</span>import
org.apache.hadoop.hbase.client.RegionInfo;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import
org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import
org.apache.hadoop.hbase.master.MockNoopMasterServices;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import
org.apache.hadoop.hbase.master.RackManager;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import
org.apache.hadoop.hbase.master.RegionPlan;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import
org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster;<a
name="line.47"></a>
-<span class="sourceLineNo">048</span>import
org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.ServerLocalityCostFunction;<a
name="line.48"></a>
-<span class="sourceLineNo">049</span>import
org.apache.hadoop.hbase.testclassification.FlakeyTests;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import
org.apache.hadoop.hbase.testclassification.MediumTests;<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.junit.Ignore;<a
name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.junit.Test;<a
name="line.53"></a>
-<span class="sourceLineNo">054</span>import
org.junit.experimental.categories.Category;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.slf4j.Logger;<a
name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.slf4j.LoggerFactory;<a
name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span>@Category({FlakeyTests.class,
MediumTests.class})<a name="line.58"></a>
-<span class="sourceLineNo">059</span>public class TestStochasticLoadBalancer
extends BalancerTestBase {<a name="line.59"></a>
-<span class="sourceLineNo">060</span> public static final String REGION_KEY =
"testRegion";<a name="line.60"></a>
-<span class="sourceLineNo">061</span> private static final Logger LOG =
LoggerFactory.getLogger(TestStochasticLoadBalancer.class);<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span> // Mapping of locality test ->
expected locality<a name="line.63"></a>
-<span class="sourceLineNo">064</span> private float[] expectedLocalities =
{1.0f, 0.0f, 0.50f, 0.25f, 1.0f};<a name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span> /**<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * Data set for testLocalityCost:<a
name="line.67"></a>
-<span class="sourceLineNo">068</span> * [test][0][0] = mapping of server to
number of regions it hosts<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * [test][region + 1][0] = server that
region is hosted on<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * [test][region + 1][server + 1] =
locality for region on server<a name="line.70"></a>
-<span class="sourceLineNo">071</span> */<a name="line.71"></a>
-<span class="sourceLineNo">072</span><a name="line.72"></a>
-<span class="sourceLineNo">073</span> private int[][][]
clusterRegionLocationMocks = new int[][][]{<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> // Test 1: each region is entirely
on server that hosts it<a name="line.75"></a>
-<span class="sourceLineNo">076</span> new int[][]{<a name="line.76"></a>
-<span class="sourceLineNo">077</span> new int[]{2, 1, 1},<a
name="line.77"></a>
-<span class="sourceLineNo">078</span> new int[]{2, 0, 0, 100}, //
region 0 is hosted and entirely local on server 2<a name="line.78"></a>
-<span class="sourceLineNo">079</span> new int[]{0, 100, 0, 0}, //
region 1 is hosted and entirely on server 0<a name="line.79"></a>
-<span class="sourceLineNo">080</span> new int[]{0, 100, 0, 0}, //
region 2 is hosted and entirely on server 0<a name="line.80"></a>
-<span class="sourceLineNo">081</span> new int[]{1, 0, 100, 0}, //
region 1 is hosted and entirely on server 1<a name="line.81"></a>
-<span class="sourceLineNo">082</span> },<a name="line.82"></a>
-<span class="sourceLineNo">083</span><a name="line.83"></a>
-<span class="sourceLineNo">084</span> // Test 2: each region is 0% local
on the server that hosts it<a name="line.84"></a>
-<span class="sourceLineNo">085</span> new int[][]{<a name="line.85"></a>
-<span class="sourceLineNo">086</span> new int[]{1, 2, 1},<a
name="line.86"></a>
-<span class="sourceLineNo">087</span> new int[]{0, 0, 0, 100}, //
region 0 is hosted and entirely local on server 2<a name="line.87"></a>
-<span class="sourceLineNo">088</span> new int[]{1, 100, 0, 0}, //
region 1 is hosted and entirely on server 0<a name="line.88"></a>
-<span class="sourceLineNo">089</span> new int[]{1, 100, 0, 0}, //
region 2 is hosted and entirely on server 0<a name="line.89"></a>
-<span class="sourceLineNo">090</span> new int[]{2, 0, 100, 0}, //
region 1 is hosted and entirely on server 1<a name="line.90"></a>
-<span class="sourceLineNo">091</span> },<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span> // Test 3: each region is 25% local
on the server that hosts it (and 50% locality is possible)<a name="line.93"></a>
-<span class="sourceLineNo">094</span> new int[][]{<a name="line.94"></a>
-<span class="sourceLineNo">095</span> new int[]{1, 2, 1},<a
name="line.95"></a>
-<span class="sourceLineNo">096</span> new int[]{0, 25, 0, 50}, //
region 0 is hosted and entirely local on server 2<a name="line.96"></a>
-<span class="sourceLineNo">097</span> new int[]{1, 50, 25, 0}, //
region 1 is hosted and entirely on server 0<a name="line.97"></a>
-<span class="sourceLineNo">098</span> new int[]{1, 50, 25, 0}, //
region 2 is hosted and entirely on server 0<a name="line.98"></a>
-<span class="sourceLineNo">099</span> new int[]{2, 0, 50, 25}, //
region 1 is hosted and entirely on server 1<a name="line.99"></a>
-<span class="sourceLineNo">100</span> },<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span> // Test 4: each region is 25% local
on the server that hosts it (and 100% locality is possible)<a
name="line.102"></a>
-<span class="sourceLineNo">103</span> new int[][]{<a name="line.103"></a>
-<span class="sourceLineNo">104</span> new int[]{1, 2, 1},<a
name="line.104"></a>
-<span class="sourceLineNo">105</span> new int[]{0, 25, 0, 100}, //
region 0 is hosted and entirely local on server 2<a name="line.105"></a>
-<span class="sourceLineNo">106</span> new int[]{1, 100, 25, 0}, //
region 1 is hosted and entirely on server 0<a name="line.106"></a>
-<span class="sourceLineNo">107</span> new int[]{1, 100, 25, 0}, //
region 2 is hosted and entirely on server 0<a name="line.107"></a>
-<span class="sourceLineNo">108</span> new int[]{2, 0, 100, 25}, //
region 1 is hosted and entirely on server 1<a name="line.108"></a>
-<span class="sourceLineNo">109</span> },<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> // Test 5: each region is 75% local
on the server that hosts it (and 75% locality is possible everywhere)<a
name="line.111"></a>
-<span class="sourceLineNo">112</span> new int[][]{<a name="line.112"></a>
-<span class="sourceLineNo">113</span> new int[]{1, 2, 1},<a
name="line.113"></a>
-<span class="sourceLineNo">114</span> new int[]{0, 75, 75, 75}, //
region 0 is hosted and entirely local on server 2<a name="line.114"></a>
-<span class="sourceLineNo">115</span> new int[]{1, 75, 75, 75}, //
region 1 is hosted and entirely on server 0<a name="line.115"></a>
-<span class="sourceLineNo">116</span> new int[]{1, 75, 75, 75}, //
region 2 is hosted and entirely on server 0<a name="line.116"></a>
-<span class="sourceLineNo">117</span> new int[]{2, 75, 75, 75}, //
region 1 is hosted and entirely on server 1<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><a name="line.120"></a>
-<span class="sourceLineNo">121</span><a name="line.121"></a>
-<span class="sourceLineNo">122</span> @Test<a name="line.122"></a>
-<span class="sourceLineNo">123</span> public void testKeepRegionLoad() throws
Exception {<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span> ServerName sn =
ServerName.valueOf("test:8080", 100);<a name="line.125"></a>
-<span class="sourceLineNo">126</span> int numClusterStatusToAdd = 20000;<a
name="line.126"></a>
-<span class="sourceLineNo">127</span> for (int i = 0; i <
numClusterStatusToAdd; i++) {<a name="line.127"></a>
-<span class="sourceLineNo">128</span> ServerMetrics sl =
mock(ServerMetrics.class);<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span> RegionMetrics rl =
mock(RegionMetrics.class);<a name="line.130"></a>
-<span class="sourceLineNo">131</span>
when(rl.getReadRequestCount()).thenReturn(0L);<a name="line.131"></a>
-<span class="sourceLineNo">132</span>
when(rl.getWriteRequestCount()).thenReturn(0L);<a name="line.132"></a>
-<span class="sourceLineNo">133</span>
when(rl.getMemStoreSize()).thenReturn(Size.ZERO);<a name="line.133"></a>
-<span class="sourceLineNo">134</span>
when(rl.getStoreFileSize()).thenReturn(new Size(i, Size.Unit.MEGABYTE));<a
name="line.134"></a>
-<span class="sourceLineNo">135</span><a name="line.135"></a>
-<span class="sourceLineNo">136</span> Map<byte[], RegionMetrics>
regionLoadMap = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a
name="line.136"></a>
-<span class="sourceLineNo">137</span>
regionLoadMap.put(Bytes.toBytes(REGION_KEY), rl);<a name="line.137"></a>
-<span class="sourceLineNo">138</span>
when(sl.getRegionMetrics()).thenReturn(regionLoadMap);<a name="line.138"></a>
-<span class="sourceLineNo">139</span><a name="line.139"></a>
-<span class="sourceLineNo">140</span> ClusterMetrics clusterStatus =
mock(ClusterMetrics.class);<a name="line.140"></a>
-<span class="sourceLineNo">141</span> Map<ServerName,
ServerMetrics> serverMetricsMap = new TreeMap<>();<a
name="line.141"></a>
-<span class="sourceLineNo">142</span> serverMetricsMap.put(sn, sl);<a
name="line.142"></a>
-<span class="sourceLineNo">143</span>
when(clusterStatus.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a
name="line.143"></a>
-<span class="sourceLineNo">144</span>//
when(clusterStatus.getLoad(sn)).thenReturn(sl);<a name="line.144"></a>
-<span class="sourceLineNo">145</span><a name="line.145"></a>
-<span class="sourceLineNo">146</span>
loadBalancer.setClusterMetrics(clusterStatus);<a name="line.146"></a>
-<span class="sourceLineNo">147</span> }<a name="line.147"></a>
-<span class="sourceLineNo">148</span>
assertTrue(loadBalancer.loads.get(REGION_KEY) != null);<a name="line.148"></a>
-<span class="sourceLineNo">149</span>
assertTrue(loadBalancer.loads.get(REGION_KEY).size() == 15);<a
name="line.149"></a>
-<span class="sourceLineNo">150</span><a name="line.150"></a>
-<span class="sourceLineNo">151</span> Queue<BalancerRegionLoad> loads
= loadBalancer.loads.get(REGION_KEY);<a name="line.151"></a>
-<span class="sourceLineNo">152</span> int i = 0;<a name="line.152"></a>
-<span class="sourceLineNo">153</span> while(loads.size() > 0) {<a
name="line.153"></a>
-<span class="sourceLineNo">154</span> BalancerRegionLoad rl =
loads.remove();<a name="line.154"></a>
-<span class="sourceLineNo">155</span> assertEquals(i +
(numClusterStatusToAdd - 15), rl.getStorefileSizeMB());<a name="line.155"></a>
-<span class="sourceLineNo">156</span> i ++;<a name="line.156"></a>
-<span class="sourceLineNo">157</span> }<a name="line.157"></a>
-<span class="sourceLineNo">158</span> }<a name="line.158"></a>
-<span class="sourceLineNo">159</span><a name="line.159"></a>
-<span class="sourceLineNo">160</span> @Test<a name="line.160"></a>
-<span class="sourceLineNo">161</span> public void testNeedBalance() {<a
name="line.161"></a>
-<span class="sourceLineNo">162</span> float minCost =
conf.getFloat("hbase.master.balancer.stochastic.minCostNeedBalance", 0.05f);<a
name="line.162"></a>
-<span class="sourceLineNo">163</span>
conf.setFloat("hbase.master.balancer.stochastic.minCostNeedBalance", 1.0f);<a
name="line.163"></a>
-<span class="sourceLineNo">164</span> loadBalancer.setConf(conf);<a
name="line.164"></a>
-<span class="sourceLineNo">165</span> for (int[] mockCluster :
clusterStateMocks) {<a name="line.165"></a>
-<span class="sourceLineNo">166</span> Map<ServerName,
List<RegionInfo>> servers = mockClusterServers(mockCluster);<a
name="line.166"></a>
-<span class="sourceLineNo">167</span> List<RegionPlan> plans =
loadBalancer.balanceCluster(servers);<a name="line.167"></a>
-<span class="sourceLineNo">168</span> assertNull(plans);<a
name="line.168"></a>
-<span class="sourceLineNo">169</span> }<a name="line.169"></a>
-<span class="sourceLineNo">170</span> // reset config<a name="line.170"></a>
-<span class="sourceLineNo">171</span>
conf.setFloat("hbase.master.balancer.stochastic.minCostNeedBalance",
minCost);<a name="line.171"></a>
-<span class="sourceLineNo">172</span> loadBalancer.setConf(conf);<a
name="line.172"></a>
-<span class="sourceLineNo">173</span> }<a name="line.173"></a>
-<span class="sourceLineNo">174</span><a name="line.174"></a>
-<span class="sourceLineNo">175</span> /**<a name="line.175"></a>
-<span class="sourceLineNo">176</span> * Test the load balancing algorithm.<a
name="line.176"></a>
-<span class="sourceLineNo">177</span> *<a name="line.177"></a>
-<span class="sourceLineNo">178</span> * Invariant is that all servers should
be hosting either floor(average) or<a name="line.178"></a>
-<span class="sourceLineNo">179</span> * ceiling(average)<a
name="line.179"></a>
-<span class="sourceLineNo">180</span> *<a name="line.180"></a>
-<span class="sourceLineNo">181</span> * @throws Exception<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 testBalanceCluster() throws
Exception {<a name="line.184"></a>
-<span class="sourceLineNo">185</span>
conf.setLong(StochasticLoadBalancer.MAX_STEPS_KEY, 2000000L);<a
name="line.185"></a>
-<span class="sourceLineNo">186</span>
conf.setLong("hbase.master.balancer.stochastic.maxRunningTime", 90 * 1000); //
90 sec<a name="line.186"></a>
-<span class="sourceLineNo">187</span>
conf.setFloat("hbase.master.balancer.stochastic.maxMovePercent", 1.0f);<a
name="line.187"></a>
-<span class="sourceLineNo">188</span> loadBalancer.setConf(conf);<a
name="line.188"></a>
-<span class="sourceLineNo">189</span> for (int[] mockCluster :
clusterStateMocks) {<a name="line.189"></a>
-<span class="sourceLineNo">190</span> Map<ServerName,
List<RegionInfo>> servers = mockClusterServers(mockCluster);<a
name="line.190"></a>
-<span class="sourceLineNo">191</span> List<ServerAndLoad> list =
convertToList(servers);<a name="line.191"></a>
-<span class="sourceLineNo">192</span> LOG.info("Mock Cluster : " +
printMock(list) + " " + printStats(list));<a name="line.192"></a>
-<span class="sourceLineNo">193</span> List<RegionPlan> plans =
loadBalancer.balanceCluster(servers);<a name="line.193"></a>
-<span class="sourceLineNo">194</span> List<ServerAndLoad>
balancedCluster = reconcile(list, plans, servers);<a name="line.194"></a>
-<span class="sourceLineNo">195</span> LOG.info("Mock Balance : " +
printMock(balancedCluster));<a name="line.195"></a>
-<span class="sourceLineNo">196</span>
assertClusterAsBalanced(balancedCluster);<a name="line.196"></a>
-<span class="sourceLineNo">197</span> List<RegionPlan> secondPlans
= loadBalancer.balanceCluster(servers);<a name="line.197"></a>
-<span class="sourceLineNo">198</span> assertNull(secondPlans);<a
name="line.198"></a>
-<span class="sourceLineNo">199</span> for (Map.Entry<ServerName,
List<RegionInfo>> entry : servers.entrySet()) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span>
returnRegions(entry.getValue());<a name="line.200"></a>
-<span class="sourceLineNo">201</span> returnServer(entry.getKey());<a
name="line.201"></a>
-<span class="sourceLineNo">202</span> }<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> @Test<a name="line.206"></a>
-<span class="sourceLineNo">207</span> public void testLocalityCost() throws
Exception {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> Configuration conf =
HBaseConfiguration.create();<a name="line.208"></a>
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MockNoopMasterServices();<a name="line.209"></a>
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name="line.210"></a>
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ServerLocalityCostFunction(conf, master);<a name="line.211"></a>
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clusterRegionLocationMocks.length; test++) {<a name="line.213"></a>
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clusterRegionLocationMocks[test];<a name="line.214"></a>
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name="line.216"></a>
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costFunction.cost();<a name="line.217"></a>
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expectedLocalities[test];<a name="line.218"></a>
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0.001);<a name="line.219"></a>
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Exception {<a name="line.224"></a>
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HBaseConfiguration.create();<a name="line.225"></a>
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name="line.226"></a>
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StochasticLoadBalancer.MoveCostFunction(conf);<a name="line.227"></a>
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clusterStateMocks) {<a name="line.228"></a>
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mockCluster(mockCluster);<a name="line.229"></a>
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name="line.230"></a>
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costFunction.cost();<a name="line.231"></a>
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name="line.232"></a>
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than maxMoves=600<a name="line.234"></a>
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name="line.235"></a>
-<span class="sourceLineNo">236</span> cluster.setNumMovedRegions(10);<a
name="line.236"></a>
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name="line.237"></a>
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name="line.238"></a>
-<span class="sourceLineNo">239</span> cluster.setNumMovedRegions(100);<a
name="line.239"></a>
-<span class="sourceLineNo">240</span> cost = costFunction.cost();<a
name="line.240"></a>
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name="line.241"></a>
-<span class="sourceLineNo">242</span> cluster.setNumMovedRegions(200);<a
name="line.242"></a>
-<span class="sourceLineNo">243</span> cost = costFunction.cost();<a
name="line.243"></a>
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name="line.244"></a>
-<span class="sourceLineNo">245</span><a name="line.245"></a>
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name="line.248"></a>
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name="line.249"></a>
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name="line.250"></a>
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name="line.251"></a>
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name="line.252"></a>
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name="line.253"></a>
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name="line.254"></a>
-<span class="sourceLineNo">255</span> cluster.setNumMovedRegions(2500);<a
name="line.255"></a>
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name="line.256"></a>
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name="line.257"></a>
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name="line.262"></a>
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HBaseConfiguration.create();<a name="line.263"></a>
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name="line.264"></a>
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StochasticLoadBalancer.RegionCountSkewCostFunction(conf);<a name="line.265"></a>
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clusterStateMocks) {<a name="line.266"></a>
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costFunction.init(mockCluster(mockCluster));<a name="line.267"></a>
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costFunction.cost();<a name="line.268"></a>
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name="line.269"></a>
-<span class="sourceLineNo">270</span> assertTrue(cost <= 1.01);<a
name="line.270"></a>
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int[]{0, 0, 0, 0, 1}));<a name="line.273"></a>
-<span class="sourceLineNo">274</span> assertEquals(0,costFunction.cost(),
0.01);<a name="line.274"></a>
-<span class="sourceLineNo">275</span> costFunction.init(mockCluster(new
int[]{0, 0, 0, 1, 1}));<a name="line.275"></a>
-<span class="sourceLineNo">276</span> assertEquals(0, costFunction.cost(),
0.01);<a name="line.276"></a>
-<span class="sourceLineNo">277</span> costFunction.init(mockCluster(new
int[]{0, 0, 1, 1, 1}));<a name="line.277"></a>
-<span class="sourceLineNo">278</span> assertEquals(0, costFunction.cost(),
0.01);<a name="line.278"></a>
-<span class="sourceLineNo">279</span> costFunction.init(mockCluster(new
int[]{0, 1, 1, 1, 1}));<a name="line.279"></a>
-<span class="sourceLineNo">280</span> assertEquals(0, costFunction.cost(),
0.01);<a name="line.280"></a>
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int[]{1, 1, 1, 1, 1}));<a name="line.281"></a>
-<span class="sourceLineNo">282</span> assertEquals(0, costFunction.cost(),
0.01);<a name="line.282"></a>
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int[]{10000, 0, 0, 0, 0}));<a name="line.283"></a>
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0.01);<a name="line.284"></a>
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{<a name="line.288"></a>
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name="line.289"></a>
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name="line.290"></a>
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clusterStateMocks) {<a name="line.291"></a>
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mockCluster(mockCluster);<a name="line.292"></a>
-<span class="sourceLineNo">293</span> loadBalancer.initCosts(cluster);<a
name="line.293"></a>
-<span class="sourceLineNo">294</span> for (int i = 0; i != runs; ++i) {<a
name="line.294"></a>
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loadBalancer.computeCost(cluster, Double.MAX_VALUE);<a name="line.295"></a>
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loadBalancer.nextAction(cluster);<a name="line.296"></a>
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name="line.297"></a>
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loadBalancer.updateCostsWithAction(cluster, action);<a name="line.298"></a>
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action.undoAction();<a name="line.299"></a>
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name="line.300"></a>
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loadBalancer.updateCostsWithAction(cluster, undoAction);<a name="line.301"></a>
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loadBalancer.computeCost(cluster, Double.MAX_VALUE);<a name="line.302"></a>
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actualCost, 0);<a name="line.303"></a>
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-<span class="sourceLineNo">305</span> }<a name="line.305"></a>
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name="line.309"></a>
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HBaseConfiguration.create();<a name="line.310"></a>
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name="line.311"></a>
-<span class="sourceLineNo">312</span> costFunction = new
StochasticLoadBalancer.TableSkewCostFunction(conf);<a name="line.312"></a>
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clusterStateMocks) {<a name="line.313"></a>
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mockCluster(mockCluster);<a name="line.314"></a>
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name="line.315"></a>
-<span class="sourceLineNo">316</span> double cost =
costFunction.cost();<a name="line.316"></a>
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name="line.317"></a>
-<span class="sourceLineNo">318</span> assertTrue(cost <= 1.01);<a
name="line.318"></a>
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-<span class="sourceLineNo">320</span> }<a name="line.320"></a>
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name="line.323"></a>
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regionLoads = new ArrayList<>();<a name="line.324"></a>
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name="line.325"></a>
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mock(BalancerRegionLoad.class);<a name="line.326"></a>
-<span class="sourceLineNo">327</span>
when(regionLoad.getReadRequestsCount()).thenReturn(new Long(i));<a
name="line.327"></a>
-<span class="sourceLineNo">328</span>
when(regionLoad.getStorefileSizeMB()).thenReturn(i);<a name="line.328"></a>
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name="line.329"></a>
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HBaseConfiguration.create();<a name="line.332"></a>
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StochasticLoadBalancer.ReadRequestCostFunction readCostFunction =<a
name="line.333"></a>
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StochasticLoadBalancer.ReadRequestCostFunction(conf);<a name="line.334"></a>
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readCostFunction.getRegionLoadCost(regionLoads);<a name="line.335"></a>
-<span class="sourceLineNo">336</span> // read requests are treated as a
rate so the average rate here is simply 1<a name="line.336"></a>
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name="line.337"></a>
-<span class="sourceLineNo">338</span><a name="line.338"></a>
-<span class="sourceLineNo">339</span>
StochasticLoadBalancer.StoreFileCostFunction storeFileCostFunction =<a
name="line.339"></a>
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StochasticLoadBalancer.StoreFileCostFunction(conf);<a name="line.340"></a>
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storeFileCostFunction.getRegionLoadCost(regionLoads);<a name="line.341"></a>
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average of it's value over time<a name="line.342"></a>
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name="line.343"></a>
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name="line.347"></a>
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HBaseConfiguration.create();<a name="line.348"></a>
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StochasticLoadBalancer.CostFromRegionLoadFunction<a name="line.349"></a>
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StochasticLoadBalancer.MemStoreSizeCostFunction(conf);<a name="line.350"></a>
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int[]{0, 0, 0, 0, 1}));<a name="line.351"></a>
-<span class="sourceLineNo">352</span><a name="line.352"></a>
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name="line.353"></a>
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name="line.354"></a>
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name="line.355"></a>
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costFunction.costFromArray(statOne), 0.01);<a name="line.357"></a>
-<span class="sourceLineNo">358</span><a name="line.358"></a>
-<span class="sourceLineNo">359</span> double[] statTwo= new double[101];<a
name="line.359"></a>
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name="line.360"></a>
-<span class="sourceLineNo">361</span> statTwo[i] = 0;<a
name="line.361"></a>
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name="line.363"></a>
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costFunction.costFromArray(statTwo), 0.01);<a name="line.364"></a>
-<span class="sourceLineNo">365</span><a name="line.365"></a>
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double[200];<a name="line.366"></a>
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name="line.367"></a>
-<span class="sourceLineNo">368</span> statThree[i] = (0);<a
name="line.368"></a>
-<span class="sourceLineNo">369</span> statThree[i+100] = 100;<a
name="line.369"></a>
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costFunction.costFromArray(statThree), 0.01);<a name="line.371"></a>
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name="line.374"></a>
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Exception {<a name="line.375"></a>
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name="line.376"></a>
-<span class="sourceLineNo">377</span> int numRegions = 20;<a
name="line.377"></a>
-<span class="sourceLineNo">378</span> int numRegionsPerServer = 3; //all
servers except one<a name="line.378"></a>
-<span class="sourceLineNo">379</span> int replication = 1;<a
name="line.379"></a>
-<span class="sourceLineNo">380</span> int numTables = 2;<a
name="line.380"></a>
-<span class="sourceLineNo">381</span><a name="line.381"></a>
-<span class="sourceLineNo">382</span> Map<ServerName,
List<RegionInfo>> serverMap =<a name="line.382"></a>
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numRegions, numRegionsPerServer, replication, numTables);<a name="line.383"></a>
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convertToList(serverMap);<a name="line.384"></a>
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-<span class="sourceLineNo">386</span><a name="line.386"></a>
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loadBalancer.balanceCluster(serverMap);<a name="line.387"></a>
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name="line.388"></a>
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-<span class="sourceLineNo">390</span> // Apply the plan to the mock
cluster.<a name="line.390"></a>
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balancedCluster = reconcile(list, plans, serverMap);<a name="line.391"></a>
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assertClusterAsBalanced(balancedCluster);<a name="line.393"></a>
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serverMap.keySet().toArray(new ServerName[serverMap.size()])[0];<a
name="line.395"></a>
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-<span class="sourceLineNo">397</span> ServerName deadSn =
ServerName.valueOf(sn.getHostname(), sn.getPort(), sn.getStartcode() - 100);<a
name="line.397"></a>
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ArrayList<>(0));<a name="line.399"></a>
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name="line.408"></a>
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StochasticLoadBalancer.RegionReplicaHostCostFunction(conf);<a
name="line.409"></a>
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clusterStateMocks) {<a name="line.410"></a>
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mockCluster(mockCluster);<a name="line.411"></a>
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name="line.412"></a>
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costFunction.cost();<a name="line.413"></a>
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name="line.414"></a>
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name="line.415"></a>
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HBaseConfiguration.create();<a name="line.421"></a>
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name="line.422"></a>
-<span class="sourceLineNo">423</span> costFunction = new
StochasticLoadBalancer.RegionReplicaHostCostFunction(conf);<a
name="line.423"></a>
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{3,3,3,3,3};<a name="line.425"></a>
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List<RegionInfo>> clusterState = mockClusterServers(servers);<a
name="line.426"></a>
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-<span class="sourceLineNo">428</span> BaseLoadBalancer.Cluster cluster;<a
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BaseLoadBalancer.Cluster(clusterState, null, null, null);<a name="line.430"></a>
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name="line.431"></a>
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0);<a name="line.433"></a>
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server to the last server<a name="line.435"></a>
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RegionReplicaUtil.getRegionInfoForReplica(<a name="line.436"></a>
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clusterState.firstEntry().getValue().get(0),1);<a name="line.437"></a>
-<span class="sourceLineNo">438</span>
clusterState.lastEntry().getValue().add(replica1);<a name="line.438"></a>
-<span class="sourceLineNo">439</span><a name="line.439"></a>
-<span class="sourceLineNo">440</span> cluster = new
BaseLoadBalancer.Cluster(clusterState, null, null, null);<a name="line.440"></a>
-<span class="sourceLineNo">441</span> costFunction.init(cluster);<a
name="line.441"></a>
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costWith1ReplicaDifferentServer = costFunction.cost();<a name="line.442"></a>
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costWith1ReplicaDifferentServer, 0);<a name="line.444"></a>
-<span class="sourceLineNo">445</span><a name="line.445"></a>
-<span class="sourceLineNo">446</span> // add a third replica to the last
server<a name="line.446"></a>
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RegionReplicaUtil.getRegionInfoForReplica(replica1, 2);<a name="line.447"></a>
-<span class="sourceLineNo">448</span>
clusterState.lastEntry().getValue().add(replica2);<a name="line.448"></a>
-<span class="sourceLineNo">449</span><a name="line.449"></a>
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BaseLoadBalancer.Cluster(clusterState, null, null, null);<a name="line.450"></a>
-<span class="sourceLineNo">451</span> costFunction.init(cluster);<a
name="line.451"></a>
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costFunction.cost();<a name="line.452"></a>
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-<span class="sourceLineNo">454</span>
assertTrue(costWith1ReplicaDifferentServer < costWith1ReplicaSameServer);<a
name="line.454"></a>
-<span class="sourceLineNo">455</span><a name="line.455"></a>
-<span class="sourceLineNo">456</span> // test with replication = 4 for
following:<a name="line.456"></a>
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-<span class="sourceLineNo">458</span> RegionInfo replica3;<a
name="line.458"></a>
-<span class="sourceLineNo">459</span> Iterator<Entry<ServerName,
List<RegionInfo>>> it;<a name="line.459"></a>
-<span class="sourceLineNo">460</span> Entry<ServerName,
List<RegionInfo>> entry;<a name="line.460"></a>
-<span class="sourceLineNo">461</span><a name="line.461"></a>
-<span class="sourceLineNo">462</span> clusterState =
mockClusterServers(servers);<a name="line.462"></a>
-<span class="sourceLineNo">463</span> it =
clusterState.entrySet().iterator();<a name="line.463"></a>
-<span class="sourceLineNo">464</span> entry = it.next(); //first server<a
name="line.464"></a>
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entry.getValue().get(0);<a name="line.465"></a>
-<span class="sourceLineNo">466</span> replica1 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 1);<a name="line.466"></a>
-<span class="sourceLineNo">467</span> replica2 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 2);<a name="line.467"></a>
-<span class="sourceLineNo">468</span> replica3 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 3);<a name="line.468"></a>
-<span class="sourceLineNo">469</span> entry.getValue().add(replica1);<a
name="line.469"></a>
-<span class="sourceLineNo">470</span> entry.getValue().add(replica2);<a
name="line.470"></a>
-<span class="sourceLineNo">471</span> it.next().getValue().add(replica3);
//2nd server<a name="line.471"></a>
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BaseLoadBalancer.Cluster(clusterState, null, null, null);<a name="line.473"></a>
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name="line.474"></a>
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costFunction.cost();<a name="line.475"></a>
-<span class="sourceLineNo">476</span><a name="line.476"></a>
-<span class="sourceLineNo">477</span> clusterState =
mockClusterServers(servers);<a name="line.477"></a>
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clusterState.firstEntry().getValue().get(0);<a name="line.478"></a>
-<span class="sourceLineNo">479</span> replica1 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 1);<a name="line.479"></a>
-<span class="sourceLineNo">480</span> replica2 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 2);<a name="line.480"></a>
-<span class="sourceLineNo">481</span> replica3 =
RegionReplicaUtil.getRegionInfoForReplica(hri, 3);<a name="line.481"></a>
-<span class="sourceLineNo">482</span><a name="line.482"></a>
-<span class="sourceLineNo">483</span>
clusterState.firstEntry().getValue().add(replica1);<a name="line.483"></a>
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clusterState.lastEntry().getValue().add(replica2);<a name="line.484"></a>
-<span class="sourceLineNo">485</span>
clusterState.lastEntry().getValue().add(replica3);<a name="line.485"></a>
-<span class="sourceLineNo">486</span><a name="line.486"></a>
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BaseLoadBalancer.Cluster(clusterState, null, null, null);<a name="line.487"></a>
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name="line.488"></a>
-<span class="sourceLineNo">489</span> double costWith2ReplicasOnTwoServers
= costFunction.cost();<a name="line.489"></a>
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-<span class="sourceLineNo">491</span>
assertTrue(costWith2ReplicasOnTwoServers < costWith3ReplicasSameServer);<a
name="line.491"></a>
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-<span class="sourceLineNo">493</span><a name="line.493"></a>
-<span class="sourceLineNo">494</span> @Test<a name="line.494"></a>
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testNeedsBalanceForColocatedReplicas() {<a name="line.495"></a>
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two hosts and with one rack, and where<a name="line.496"></a>
-<span class="sourceLineNo">497</span> // both the replicas are hosted on
the same server<a name="line.497"></a>
-<span class="sourceLineNo">498</span> List<RegionInfo> regions =
randomRegions(1);<a name="line.498"></a>
-<span class="sourceLineNo">499</span> ServerName s1 =
ServerName.valueOf("host1", 1000, 11111);<a name="line.499"></a>
-<span class="sourceLineNo">500</span> ServerName s2 =
ServerName.valueOf("host11", 1000, 11111);<a name="line.500"></a>
-<span class="sourceLineNo">501</span> Map<ServerName,
List<RegionInfo>> map = new HashMap<>();<a name="line.501"></a>
-<span class="sourceLineNo">502</span> map.put(s1, regions);<a
name="line.502"></a>
-<span class="sourceLineNo">503</span>
regions.add(RegionReplicaUtil.getRegionInfoForReplica(regions.get(0), 1));<a
name="line.503"></a>
-<span class="sourceLineNo">504</span> // until the step above s1 holds two
replicas of a region<a name="line.504"></a>
-<span class="sourceLineNo">505</span> regions = randomRegions(1);<a
name="line.505"></a>
-<span class="sourceLineNo">506</span> map.put(s2, regions);<a
name="line.506"></a>
-<span class="sourceLineNo">507</span>
assertTrue(loadBalancer.needsBalance(new Cluster(map, null, null, null)));<a
name="line.507"></a>
-<span class="sourceLineNo">508</span> // check for the case where there are
two hosts on the same rack and there are two racks<a name="line.508"></a>
-<span class="sourceLineNo">509</span> // and both the replicas are on the
same rack<a name="line.509"></a>
-<span class="sourceLineNo">510</span> map.clear();<a name="line.510"></a>
-<span class="sourceLineNo">511</span> regions = randomRegions(1);<a
name="line.511"></a>
-<span class="sourceLineNo">512</span> List<RegionInfo> regionsOnS2 =
new ArrayList<>(1);<a name="line.512"></a>
-<span class="sourceLineNo">513</span>
regionsOnS2.add(RegionReplicaUtil.getRegionInfoForReplica(regions.get(0),
1));<a name="line.513"></a>
-<span class="sourceLineNo">514</span> map.put(s1, regions);<a
name="line.514"></a>
-<span class="sourceLineNo">515</span> map.put(s2, regionsOnS2);<a
name="line.515"></a>
-<span class="sourceLineNo">516</span> // add another server so that the
cluster has some host on another rack<a name="line.516"></a>
-<span class="sourceLineNo">517</span> map.put(ServerName.valueOf("host2",
1000, 11111), randomRegions(1));<a name="line.517"></a>
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assertTrue(loadBalancer.needsBalance(new Cluster(map, null, null,<a
name="line.518"></a>
-<span class="sourceLineNo">519</span> new ForTestRackManagerOne())));<a
name="line.519"></a>
-<span class="sourceLineNo">520</span> }<a name="line.520"></a>
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name="line.523"></a>
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name="line.524"></a>
-<span class="sourceLineNo">525</span> int numRegions = 1000;<a
name="line.525"></a>
-<span class="sourceLineNo">526</span> int numRegionsPerServer = 40; //all
servers except one<a name="line.526"></a>
-<span class="sourceLineNo">527</span> int replication = 1;<a
name="line.527"></a>
-<span class="sourceLineNo">528</span> int numTables = 10;<a
name="line.528"></a>
-<span class="sourceLineNo">529</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.529"></a>
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-<span class="sourceLineNo">532</span> @Test (timeout = 60000)<a
name="line.532"></a>
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name="line.533"></a>
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name="line.534"></a>
-<span class="sourceLineNo">535</span> int numRegions = 2000;<a
name="line.535"></a>
-<span class="sourceLineNo">536</span> int numRegionsPerServer = 40; //all
servers except one<a name="line.536"></a>
-<span class="sourceLineNo">537</span> int replication = 1;<a
name="line.537"></a>
-<span class="sourceLineNo">538</span> int numTables = 10;<a
name="line.538"></a>
-<span class="sourceLineNo">539</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.539"></a>
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-<span class="sourceLineNo">542</span> @Test (timeout = 60000)<a
name="line.542"></a>
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name="line.543"></a>
-<span class="sourceLineNo">544</span> int numNodes = 20;<a
name="line.544"></a>
-<span class="sourceLineNo">545</span> int numRegions = 2000;<a
name="line.545"></a>
-<span class="sourceLineNo">546</span> int numRegionsPerServer = 1; // all
servers except one<a name="line.546"></a>
-<span class="sourceLineNo">547</span> int replication = 1;<a
name="line.547"></a>
-<span class="sourceLineNo">548</span> int numTables = 10;<a
name="line.548"></a>
-<span class="sourceLineNo">549</span> /* fails because of max moves */<a
name="line.549"></a>
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numRegionsPerServer, replication, numTables, false, false);<a
name="line.550"></a>
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-<span class="sourceLineNo">552</span><a name="line.552"></a>
-<span class="sourceLineNo">553</span> @Test (timeout = 800000)<a
name="line.553"></a>
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name="line.554"></a>
-<span class="sourceLineNo">555</span> int numNodes = 100;<a
name="line.555"></a>
-<span class="sourceLineNo">556</span> int numRegions = 10000;<a
name="line.556"></a>
-<span class="sourceLineNo">557</span> int numRegionsPerServer = 60; // all
servers except one<a name="line.557"></a>
-<span class="sourceLineNo">558</span> int replication = 1;<a
name="line.558"></a>
-<span class="sourceLineNo">559</span> int numTables = 40;<a
name="line.559"></a>
-<span class="sourceLineNo">560</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.560"></a>
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-<span class="sourceLineNo">562</span><a name="line.562"></a>
-<span class="sourceLineNo">563</span> @Test (timeout = 800000)<a
name="line.563"></a>
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name="line.564"></a>
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name="line.565"></a>
-<span class="sourceLineNo">566</span> int numRegions = 100000;<a
name="line.566"></a>
-<span class="sourceLineNo">567</span> int numRegionsPerServer = 40; // all
servers except one<a name="line.567"></a>
-<span class="sourceLineNo">568</span> int replication = 1;<a
name="line.568"></a>
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name="line.569"></a>
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name="line.570"></a>
-<span class="sourceLineNo">571</span> numRegions,<a name="line.571"></a>
-<span class="sourceLineNo">572</span> numRegionsPerServer,<a
name="line.572"></a>
-<span class="sourceLineNo">573</span> replication,<a
name="line.573"></a>
-<span class="sourceLineNo">574</span> numTables,<a name="line.574"></a>
-<span class="sourceLineNo">575</span> false, /* num large num regions
means may not always get to best balance with one run */<a name="line.575"></a>
-<span class="sourceLineNo">576</span> false);<a name="line.576"></a>
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-<span class="sourceLineNo">578</span><a name="line.578"></a>
-<span class="sourceLineNo">579</span><a name="line.579"></a>
-<span class="sourceLineNo">580</span> @Test (timeout = 800000)<a
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name="line.581"></a>
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name="line.582"></a>
-<span class="sourceLineNo">583</span> int numRegions = 2000;<a
name="line.583"></a>
-<span class="sourceLineNo">584</span> int numRegionsPerServer = 9; // all
servers except one<a name="line.584"></a>
-<span class="sourceLineNo">585</span> int replication = 1;<a
name="line.585"></a>
-<span class="sourceLineNo">586</span> int numTables = 110;<a
name="line.586"></a>
-<span class="sourceLineNo">587</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.587"></a>
-<span class="sourceLineNo">588</span> // TODO(eclark): Make sure that the
tables are well distributed.<a name="line.588"></a>
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name="line.592"></a>
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name="line.593"></a>
-<span class="sourceLineNo">594</span> int numRegions = 100000; //100
regions per RS<a name="line.594"></a>
-<span class="sourceLineNo">595</span> int numRegionsPerServer = 80; //all
servers except one<a name="line.595"></a>
-<span class="sourceLineNo">596</span> int numTables = 100;<a
name="line.596"></a>
-<span class="sourceLineNo">597</span> int replication = 1;<a
name="line.597"></a>
-<span class="sourceLineNo">598</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.598"></a>
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name="line.601"></a>
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testRegionReplicasOnSmallCluster() {<a name="line.602"></a>
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name="line.603"></a>
-<span class="sourceLineNo">604</span> int numRegions = 1000;<a
name="line.604"></a>
-<span class="sourceLineNo">605</span> int replication = 3; // 3 replicas
per region<a name="line.605"></a>
-<span class="sourceLineNo">606</span> int numRegionsPerServer = 80; //all
regions are mostly balanced<a name="line.606"></a>
-<span class="sourceLineNo">607</span> int numTables = 10;<a
name="line.607"></a>
-<span class="sourceLineNo">608</span> testWithCluster(numNodes, numRegions,
numRegionsPerServer, replication, numTables, true, true);<a name="line.608"></a>
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-<span class="sourceLineNo">611</span> @Ignore @Test (timeout = 800000) //
Test is flakey. TODO: Fix!<a name="line.611"></a>
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testRegionReplicationOnMidClusterSameHosts() {<a name="line.612"></a>
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conf.setLong(StochasticLoadBalancer.MAX_STEPS_KEY, 2000000L);<a
name="line.613"></a>
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conf.setLong("hbase.master.balancer.stochastic.maxRunningTime", 90 * 1000); //
90 sec<a name="line.614"></a>
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conf.setFloat("hbase.master.balancer.stochastic.maxMovePercent", 1.0f);<a
name="line.615"></a>
-<span class="sourceLineNo">616</span> loadBalancer.setConf(conf);<a
name="line.616"></a>
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name="line.617"></a>
-<span class="sourceLineNo">618</span> int numRegions = 100 * 100;<a
name="line.618"></a>
-<span class="sourceLineNo">619</span> int replication = 3; // 3 replicas
per region<a name="line.619"></a>
-<span class="sourceLineNo">620</span> int numRegionsPerServer = 5;<a
name="line.620"></a>
-<span class="sourceLineNo">621</span> int numTables = 10;<a
name="line.621"></a>
-<span class="sourceLineNo">622</span> Map<ServerName,
List<RegionInfo>> serverMap =<a name="line.622"></a>
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numRegions, numRegionsPerServer, replication, numTables);<a name="line.623"></a>
-<span class="sourceLineNo">624</span> int numNodesPerHost = 4;<a
name="line.624"></a>
-<span class="sourceLineNo">625</span><a name="line.625"></a>
-<span class="sourceLineNo">626</span> // create a new map with 4 RS per
host.<a name="line.626"></a>
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List<RegionInfo>> newServerMap = new TreeMap<>(serverMap);<a
name="line.627"></a>
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List<RegionInfo>> entry : serverMap.entrySet()) {<a
name="line.628"></a>
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numNodesPerHost; i++) {<a name="line.629"></a>
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name="line.630"></a>
-<span class="sourceLineNo">631</span> ServerName s2 =
ServerName.valueOf(s1.getHostname(), s1.getPort() + i, 1); // create an RS for
the same host<a name="line.631"></a>
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ArrayList<>());<a name="line.632"></a>
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true, true);<a name="line.636"></a>
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extends RackManager {<a name="line.639"></a>
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numRacks) {<a name="line.641"></a>
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name="line.642"></a>
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server) {<a name="line.645"></a>
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% numRacks);<a name="line.646"></a>
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-<span class="sourceLineNo">648</span> }<a name="line.648"></a>
-<span class="sourceLineNo">649</span><a name="line.649"></a>
-<span class="sourceLineNo">650</span> private static class
ForTestRackManagerOne extends RackManager {<a name="line.650"></a>
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server) {<a name="line.652"></a>
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server.getHostname().endsWith("1") ? "rack1" : "rack2";<a name="line.653"></a>
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name="line.657"></a>
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testRegionReplicationOnMidClusterWithRacks() {<a name="line.658"></a>
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conf.setLong(StochasticLoadBalancer.MAX_STEPS_KEY, 10000000L);<a
name="line.659"></a>
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conf.setFloat("hbase.master.balancer.stochastic.maxMovePercent", 1.0f);<a
name="line.660"></a>
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conf.setLong("hbase.master.balancer.stochastic.maxRunningTime", 120 * 1000); //
120 sec<a name="line.661"></a>
-<span class="sourceLineNo">662</span> loadBalancer.setConf(conf);<a
name="line.662"></a>
-<span class="sourceLineNo">663</span> int numNodes = 30;<a
name="line.663"></a>
-<span class="sourceLineNo">664</span> int numRegions = numNodes * 30;<a
name="line.664"></a>
-<span class="sourceLineNo">665</span> int replication = 3; // 3 replicas
per region<a name="line.665"></a>
-<span class="sourceLineNo">666</span> int numRegionsPerServer = 28;<a
name="line.666"></a>
-<span class="sourceLineNo">667</span> int numTables = 10;<a
name="line.667"></a>
-<span class="sourceLineNo">668</span> int numRacks = 4; // all replicas
should be on a different rack<a name="line.668"></a>
-<span class="sourceLineNo">669</span> Map<ServerName,
List<RegionInfo>> serverMap =<a name="line.669"></a>
-<span class="sourceLineNo">670</span> createServerMap(numNodes,
numRegions, numRegionsPerServer, replication, numTables);<a name="line.670"></a>
-<span class="sourceLineNo">671</span> RackManager rm = new
ForTestRackManager(numRacks);<a name="line.671"></a>
-<span class="sourceLineNo">672</span><a name="line.672"></a>
-<span class="sourceLineNo">673</span> testWithCluster(serverMap, rm, false,
true);<a name="line.673"></a>
-<span class="sourceLineNo">674</span> }<a name="line.674"></a>
-<span class="sourceLineNo">675</span><a name="line.675"></a>
-<span class="sourceLineNo">676</span> // This mock allows us to test the
LocalityCostFunction<a name="line.676"></a>
-<span class="sourceLineNo">677</span> private class MockCluster extends
BaseLoadBalancer.Cluster {<a name="line.677"></a>
-<span class="sourceLineNo">678</span><a name="line.678"></a>
-<span class="sourceLineNo">679</span> private int[][] localities = null;
// [region][server] = percent of blocks<a name="line.679"></a>
-<span class="sourceLineNo">680</span><a name="line.680"></a>
-<span class="sourceLineNo">681</span> public MockCluster(int[][] regions)
{<a name="line.681"></a>
-<span class="sourceLineNo">682</span><a name="line.682"></a>
-<span class="sourceLineNo">683</span> // regions[0] is an array where
index = serverIndex an value = number of regions<a name="line.683"></a>
-<span class="sourceLineNo">684</span>
super(mockClusterServers(regions[0], 1), null, null, null);<a
name="line.684"></a>
-<span class="sourceLineNo">685</span><a name="line.685"></a>
-<span class="sourceLineNo">686</span> localities = new int[regions.length
- 1][];<a name="line.686"></a>
-<span class="sourceLineNo">687</span> for (int i = 1; i <
regions.length; i++) {<a name="line.687"></a>
-<span class="sourceLineNo">688</span> int regionIndex = i - 1;<a
name="line.688"></a>
-<span class="sourceLineNo">689</span> localities[regionIndex] = new
int[regions[i].length - 1];<a name="line.689"></a>
-<span class="sourceLineNo">690</span>
regionIndexToServerIndex[regionIndex] = regions[i][0];<a name="line.690"></a>
-<span class="sourceLineNo">691</span> for (int j = 1; j <
regions[i].length; j++) {<a name="line.691"></a>
-<span class="sourceLineNo">692</span> int serverIndex = j - 1;<a
name="line.692"></a>
-<span class="sourceLineNo">693</span>
localities[regionIndex][serverIndex] = regions[i][j] > 100 ? regions[i][j] %
100 : regions[i][j];<a name="line.693"></a>
-<span class="sourceLineNo">694</span> }<a name="line.694"></a>
-<span class="sourceLineNo">695</span> }<a name="line.695"></a>
-<span class="sourceLineNo">696</span> }<a name="line.696"></a>
-<span class="sourceLineNo">697</span><a name="line.697"></a>
-<span class="sourceLineNo">698</span> @Override<a name="line.698"></a>
-<span class="sourceLineNo">699</span> float getLocalityOfRegion(int region,
int server) {<a name="line.699"></a>
-<span class="sourceLineNo">700</span> // convert the locality percentage
to a fraction<a name="line.700"></a>
-<span class="sourceLineNo">701</span> return localities[region][server] /
100.0f;<a name="line.701"></a>
-<span class="sourceLineNo">702</span> }<a name="line.702"></a>
-<span class="sourceLineNo">703</span><a name="line.703"></a>
-<span class="sourceLineNo">704</span> @Override<a name="line.704"></a>
-<span class="sourceLineNo">705</span> public int getRegionSizeMB(int
region) {<a name="line.705"></a>
-<span class="sourceLineNo">706</span> return 1;<a name="line.706"></a>
-<span class="sourceLineNo">707</span> }<a name="line.707"></a>
-<span class="sourceLineNo">708</span><a name="line.708"></a>
-<span class="sourceLineNo">709</span> }<a name="line.709"></a>
-<span class="sourceLineNo">710</span><a name="line.710"></a>
-<span class="sourceLineNo">711</span>}<a name="line.711"></a>
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