http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e0a5167/testdevapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.MockMapping.html ---------------------------------------------------------------------- diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.MockMapping.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.MockMapping.html index fb4fa30..d501058 100644 --- a/testdevapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.MockMapping.html +++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BalancerTestBase.MockMapping.html @@ -29,660 +29,639 @@ <span class="sourceLineNo">021</span>import static org.junit.Assert.assertNull;<a name="line.21"></a> <span class="sourceLineNo">022</span>import static org.junit.Assert.assertTrue;<a name="line.22"></a> <span class="sourceLineNo">023</span><a name="line.23"></a> -<span class="sourceLineNo">024</span>import java.io.IOException;<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.Arrays;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import java.util.HashMap;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import java.util.HashSet;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import java.util.LinkedList;<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.Random;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import java.util.Set;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import java.util.SortedSet;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import java.util.TreeMap;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import java.util.TreeSet;<a name="line.38"></a> -<span class="sourceLineNo">039</span><a name="line.39"></a> -<span class="sourceLineNo">040</span>import com.google.protobuf.Service;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.commons.logging.Log;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.commons.logging.LogFactory;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.conf.Configuration;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.ChoreService;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.CoordinatedStateManager;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.HColumnDescriptor;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.ProcedureInfo;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.ServerName;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.TableName;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.56"></a> -<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.ClusterConnection;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.master.RackManager;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.executor.ExecutorService;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.master.*;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;<a name="line.64"></a> -<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.65"></a> -<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.quotas.MasterQuotaManager;<a name="line.66"></a> -<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.security.User;<a name="line.67"></a> -<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.68"></a> -<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.69"></a> -<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;<a name="line.70"></a> -<span class="sourceLineNo">071</span>import org.apache.hadoop.net.DNSToSwitchMapping;<a name="line.71"></a> -<span class="sourceLineNo">072</span>import org.junit.Assert;<a name="line.72"></a> -<span class="sourceLineNo">073</span>import org.junit.BeforeClass;<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span>/**<a name="line.75"></a> -<span class="sourceLineNo">076</span> * Class used to be the base of unit tests on load balancers. It gives helper<a name="line.76"></a> -<span class="sourceLineNo">077</span> * methods to create maps of {@link ServerName} to lists of {@link HRegionInfo}<a name="line.77"></a> -<span class="sourceLineNo">078</span> * and to check list of region plans.<a name="line.78"></a> -<span class="sourceLineNo">079</span> *<a name="line.79"></a> -<span class="sourceLineNo">080</span> */<a name="line.80"></a> -<span class="sourceLineNo">081</span>public class BalancerTestBase {<a name="line.81"></a> -<span class="sourceLineNo">082</span> private static final Log LOG = LogFactory.getLog(BalancerTestBase.class);<a name="line.82"></a> -<span class="sourceLineNo">083</span> protected static Random rand = new Random();<a name="line.83"></a> -<span class="sourceLineNo">084</span> static int regionId = 0;<a name="line.84"></a> -<span class="sourceLineNo">085</span> protected static Configuration conf;<a name="line.85"></a> -<span class="sourceLineNo">086</span> protected static StochasticLoadBalancer loadBalancer;<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> @BeforeClass<a name="line.88"></a> -<span class="sourceLineNo">089</span> public static void beforeAllTests() throws Exception {<a name="line.89"></a> -<span class="sourceLineNo">090</span> conf = HBaseConfiguration.create();<a name="line.90"></a> -<span class="sourceLineNo">091</span> conf.setClass("hbase.util.ip.to.rack.determiner", MockMapping.class, DNSToSwitchMapping.class);<a name="line.91"></a> -<span class="sourceLineNo">092</span> conf.setFloat("hbase.master.balancer.stochastic.maxMovePercent", 0.75f);<a name="line.92"></a> -<span class="sourceLineNo">093</span> conf.setFloat("hbase.regions.slop", 0.0f);<a name="line.93"></a> -<span class="sourceLineNo">094</span> conf.setFloat("hbase.master.balancer.stochastic.localityCost", 0);<a name="line.94"></a> -<span class="sourceLineNo">095</span> loadBalancer = new StochasticLoadBalancer();<a name="line.95"></a> -<span class="sourceLineNo">096</span> loadBalancer.setConf(conf);<a name="line.96"></a> -<span class="sourceLineNo">097</span> }<a name="line.97"></a> -<span class="sourceLineNo">098</span><a name="line.98"></a> -<span class="sourceLineNo">099</span> protected int[] largeCluster = new int[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.99"></a> -<span class="sourceLineNo">100</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.100"></a> -<span class="sourceLineNo">101</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.101"></a> -<span class="sourceLineNo">102</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.102"></a> -<span class="sourceLineNo">103</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.103"></a> -<span class="sourceLineNo">104</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.104"></a> -<span class="sourceLineNo">105</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.105"></a> -<span class="sourceLineNo">106</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.106"></a> -<span class="sourceLineNo">107</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.107"></a> -<span class="sourceLineNo">108</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.108"></a> -<span class="sourceLineNo">109</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.109"></a> -<span class="sourceLineNo">110</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.110"></a> -<span class="sourceLineNo">111</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.111"></a> -<span class="sourceLineNo">112</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 56 };<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> // int[testnum][servernumber] -> numregions<a name="line.114"></a> -<span class="sourceLineNo">115</span> protected int[][] clusterStateMocks = new int[][]{<a name="line.115"></a> -<span class="sourceLineNo">116</span> // 1 node<a name="line.116"></a> -<span class="sourceLineNo">117</span> new int[]{0},<a name="line.117"></a> -<span class="sourceLineNo">118</span> new int[]{1},<a name="line.118"></a> -<span class="sourceLineNo">119</span> new int[]{10},<a name="line.119"></a> -<span class="sourceLineNo">120</span> // 2 node<a name="line.120"></a> -<span class="sourceLineNo">121</span> new int[]{0, 0},<a name="line.121"></a> -<span class="sourceLineNo">122</span> new int[]{2, 0},<a name="line.122"></a> -<span class="sourceLineNo">123</span> new int[]{2, 1},<a name="line.123"></a> -<span class="sourceLineNo">124</span> new int[]{2, 2},<a name="line.124"></a> -<span class="sourceLineNo">125</span> new int[]{2, 3},<a name="line.125"></a> -<span class="sourceLineNo">126</span> new int[]{2, 4},<a name="line.126"></a> -<span class="sourceLineNo">127</span> new int[]{1, 1},<a name="line.127"></a> -<span class="sourceLineNo">128</span> new int[]{0, 1},<a name="line.128"></a> -<span class="sourceLineNo">129</span> new int[]{10, 1},<a name="line.129"></a> -<span class="sourceLineNo">130</span> new int[]{514, 1432},<a name="line.130"></a> -<span class="sourceLineNo">131</span> new int[]{48, 53},<a name="line.131"></a> -<span class="sourceLineNo">132</span> // 3 node<a name="line.132"></a> -<span class="sourceLineNo">133</span> new int[]{0, 1, 2},<a name="line.133"></a> -<span class="sourceLineNo">134</span> new int[]{1, 2, 3},<a name="line.134"></a> -<span class="sourceLineNo">135</span> new int[]{0, 2, 2},<a name="line.135"></a> -<span class="sourceLineNo">136</span> new int[]{0, 3, 0},<a name="line.136"></a> -<span class="sourceLineNo">137</span> new int[]{0, 4, 0},<a name="line.137"></a> -<span class="sourceLineNo">138</span> new int[]{20, 20, 0},<a name="line.138"></a> -<span class="sourceLineNo">139</span> // 4 node<a name="line.139"></a> -<span class="sourceLineNo">140</span> new int[]{0, 1, 2, 3},<a name="line.140"></a> -<span class="sourceLineNo">141</span> new int[]{4, 0, 0, 0},<a name="line.141"></a> -<span class="sourceLineNo">142</span> new int[]{5, 0, 0, 0},<a name="line.142"></a> -<span class="sourceLineNo">143</span> new int[]{6, 6, 0, 0},<a name="line.143"></a> -<span class="sourceLineNo">144</span> new int[]{6, 2, 0, 0},<a name="line.144"></a> -<span class="sourceLineNo">145</span> new int[]{6, 1, 0, 0},<a name="line.145"></a> -<span class="sourceLineNo">146</span> new int[]{6, 0, 0, 0},<a name="line.146"></a> -<span class="sourceLineNo">147</span> new int[]{4, 4, 4, 7},<a name="line.147"></a> -<span class="sourceLineNo">148</span> new int[]{4, 4, 4, 8},<a name="line.148"></a> -<span class="sourceLineNo">149</span> new int[]{0, 0, 0, 7},<a name="line.149"></a> -<span class="sourceLineNo">150</span> // 5 node<a name="line.150"></a> -<span class="sourceLineNo">151</span> new int[]{1, 1, 1, 1, 4},<a name="line.151"></a> -<span class="sourceLineNo">152</span> // 6 nodes<a name="line.152"></a> -<span class="sourceLineNo">153</span> new int[]{1500, 500, 500, 500, 10, 0},<a name="line.153"></a> -<span class="sourceLineNo">154</span> new int[]{1500, 500, 500, 500, 500, 0},<a name="line.154"></a> -<span class="sourceLineNo">155</span> // more nodes<a name="line.155"></a> -<span class="sourceLineNo">156</span> new int[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},<a name="line.156"></a> -<span class="sourceLineNo">157</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 10},<a name="line.157"></a> -<span class="sourceLineNo">158</span> new int[]{6, 6, 5, 6, 6, 6, 6, 6, 6, 1},<a name="line.158"></a> -<span class="sourceLineNo">159</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 54},<a name="line.159"></a> -<span class="sourceLineNo">160</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 55},<a name="line.160"></a> -<span class="sourceLineNo">161</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 56},<a name="line.161"></a> -<span class="sourceLineNo">162</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 16},<a name="line.162"></a> -<span class="sourceLineNo">163</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 8},<a name="line.163"></a> -<span class="sourceLineNo">164</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 9},<a name="line.164"></a> -<span class="sourceLineNo">165</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 10},<a name="line.165"></a> -<span class="sourceLineNo">166</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 123},<a name="line.166"></a> -<span class="sourceLineNo">167</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 155},<a name="line.167"></a> -<span class="sourceLineNo">168</span> new int[]{10, 7, 12, 8, 11, 10, 9, 14},<a name="line.168"></a> -<span class="sourceLineNo">169</span> new int[]{13, 14, 6, 10, 10, 10, 8, 10},<a name="line.169"></a> -<span class="sourceLineNo">170</span> new int[]{130, 14, 60, 10, 100, 10, 80, 10},<a name="line.170"></a> -<span class="sourceLineNo">171</span> new int[]{130, 140, 60, 100, 100, 100, 80, 100},<a name="line.171"></a> -<span class="sourceLineNo">172</span> new int[]{0, 5 , 5, 5, 5},<a name="line.172"></a> -<span class="sourceLineNo">173</span> largeCluster,<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><a name="line.176"></a> -<span class="sourceLineNo">177</span> /**<a name="line.177"></a> -<span class="sourceLineNo">178</span> * Data set for testLocalityCost:<a name="line.178"></a> -<span class="sourceLineNo">179</span> *<a name="line.179"></a> -<span class="sourceLineNo">180</span> * [test][regions][0] = [serverIndex] -> number of regions<a name="line.180"></a> -<span class="sourceLineNo">181</span> * [test][regions][regionIndex+1] = {server hosting region, locality percentage, datanodes}<a name="line.181"></a> -<span class="sourceLineNo">182</span> *<a name="line.182"></a> -<span class="sourceLineNo">183</span> * For each [test], there is a list of cluster config information grouped by [regions].<a name="line.183"></a> -<span class="sourceLineNo">184</span> * - [0] - the first element of the [regions] list is a list of servers with the value<a name="line.184"></a> -<span class="sourceLineNo">185</span> * indicating the number of regions it hosts.<a name="line.185"></a> -<span class="sourceLineNo">186</span> * - [regionIndex+1] - the remaining elements of the array are regions, where the index value<a name="line.186"></a> -<span class="sourceLineNo">187</span> * is 1 greater than the regionIndex. This element holds an array that identifies:<a name="line.187"></a> -<span class="sourceLineNo">188</span> * [0] - the serverIndex of the server hosting this region<a name="line.188"></a> -<span class="sourceLineNo">189</span> * [1] - the locality percentage returned by getLocalityOfRegion(region, server) when the<a name="line.189"></a> -<span class="sourceLineNo">190</span> * server is hosting both region and the hdfs blocks.<a name="line.190"></a> -<span class="sourceLineNo">191</span> * [.] - the serverIndex of servers hosting the hdfs blocks, where a value of -1 indicates<a name="line.191"></a> -<span class="sourceLineNo">192</span> * a dfs server not in the list of region servers.<a name="line.192"></a> -<span class="sourceLineNo">193</span> */<a name="line.193"></a> -<span class="sourceLineNo">194</span> protected int[][][] clusterRegionLocationMocks = new int[][][]{<a name="line.194"></a> -<span class="sourceLineNo">195</span> // Test 1: Basic region placement with 1 region server not hosting dfs block<a name="line.195"></a> -<span class="sourceLineNo">196</span> // Locality Calculation:<a name="line.196"></a> -<span class="sourceLineNo">197</span> // region[0] = 1 - 80/100 = (.2) - server[2] hosts both the region and dfs blocks<a name="line.197"></a> -<span class="sourceLineNo">198</span> // region[1] = 1.0 - server[0] only hosts the region, not dfs blocks<a name="line.198"></a> -<span class="sourceLineNo">199</span> // region[2] = 1 - 70/100 = (.3) - server[1] hosts both the region and dfs blocks<a name="line.199"></a> -<span class="sourceLineNo">200</span> //<a name="line.200"></a> -<span class="sourceLineNo">201</span> // RESULT = 0.2 + 1.0 + 0.3 / 3.0 (3.0 is max value)<a name="line.201"></a> -<span class="sourceLineNo">202</span> // = 1.5 / 3.0<a name="line.202"></a> -<span class="sourceLineNo">203</span> // = 0.5<a name="line.203"></a> -<span class="sourceLineNo">204</span> new int[][]{<a name="line.204"></a> -<span class="sourceLineNo">205</span> new int[]{1, 1, 1}, // 3 region servers with 1 region each<a name="line.205"></a> -<span class="sourceLineNo">206</span> new int[]{2, 80, 1, 2, 0}, // region[0] on server[2] w/ 80% locality<a name="line.206"></a> -<span class="sourceLineNo">207</span> new int[]{0, 50, 1, 2}, // region[1] on server[0] w/ 50% , but no local dfs blocks<a name="line.207"></a> -<span class="sourceLineNo">208</span> new int[]{1, 70, 2, 0, 1}, // region[2] on server[1] w/ 70% locality<a name="line.208"></a> -<span class="sourceLineNo">209</span> },<a name="line.209"></a> -<span class="sourceLineNo">210</span><a name="line.210"></a> -<span class="sourceLineNo">211</span> // Test 2: Sames as Test 1, but the last region has a datanode that isn't a region server<a name="line.211"></a> -<span class="sourceLineNo">212</span> new int[][]{<a name="line.212"></a> -<span class="sourceLineNo">213</span> new int[]{1, 1, 1},<a name="line.213"></a> -<span class="sourceLineNo">214</span> new int[]{2, 80, 1, 2, 0},<a name="line.214"></a> -<span class="sourceLineNo">215</span> new int[]{0, 50, 1, 2},<a name="line.215"></a> -<span class="sourceLineNo">216</span> new int[]{1, 70, -1, 2, 0, 1}, // the first region location is not on a region server<a name="line.216"></a> -<span class="sourceLineNo">217</span> },<a name="line.217"></a> -<span class="sourceLineNo">218</span> };<a name="line.218"></a> -<span class="sourceLineNo">219</span><a name="line.219"></a> -<span class="sourceLineNo">220</span> // This mock allows us to test the LocalityCostFunction<a name="line.220"></a> -<span class="sourceLineNo">221</span> protected class MockCluster extends BaseLoadBalancer.Cluster {<a name="line.221"></a> -<span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> protected int[][] localityValue = null; // [region][server] = percent of blocks<a name="line.223"></a> -<span class="sourceLineNo">224</span><a name="line.224"></a> -<span class="sourceLineNo">225</span> protected MockCluster(int[][] regions) {<a name="line.225"></a> -<span class="sourceLineNo">226</span><a name="line.226"></a> -<span class="sourceLineNo">227</span> // regions[0] is an array where index = serverIndex an value = number of regions<a name="line.227"></a> -<span class="sourceLineNo">228</span> super(mockClusterServers(regions[0], 1), null, null, null);<a name="line.228"></a> -<span class="sourceLineNo">229</span><a name="line.229"></a> -<span class="sourceLineNo">230</span> localityValue = new int[regions.length-1][];<a name="line.230"></a> -<span class="sourceLineNo">231</span> // the remaining elements in the regions array contain values for:<a name="line.231"></a> -<span class="sourceLineNo">232</span> // [0] - the serverIndex of the server hosting this region<a name="line.232"></a> -<span class="sourceLineNo">233</span> // [1] - the locality percentage (in whole numbers) for the hosting region server<a name="line.233"></a> -<span class="sourceLineNo">234</span> // [.] - a list of servers hosting dfs blocks for the region (-1 means its not one<a name="line.234"></a> -<span class="sourceLineNo">235</span> // of our region servers.<a name="line.235"></a> -<span class="sourceLineNo">236</span> for (int i = 1; i < regions.length; i++){<a name="line.236"></a> -<span class="sourceLineNo">237</span> int regionIndex = i - 1;<a name="line.237"></a> -<span class="sourceLineNo">238</span> int serverIndex = regions[i][0];<a name="line.238"></a> -<span class="sourceLineNo">239</span> int locality = regions[i][1];<a name="line.239"></a> -<span class="sourceLineNo">240</span> int[] locations = Arrays.copyOfRange(regions[i], 2, regions[i].length);<a name="line.240"></a> -<span class="sourceLineNo">241</span><a name="line.241"></a> -<span class="sourceLineNo">242</span> regionIndexToServerIndex[regionIndex] = serverIndex;<a name="line.242"></a> -<span class="sourceLineNo">243</span> localityValue[regionIndex] = new int[servers.length];<a name="line.243"></a> -<span class="sourceLineNo">244</span> localityValue[regionIndex][serverIndex] = (locality > 100)? locality % 100 : locality;<a name="line.244"></a> -<span class="sourceLineNo">245</span> regionLocations[regionIndex] = locations;<a name="line.245"></a> -<span class="sourceLineNo">246</span> }<a name="line.246"></a> -<span class="sourceLineNo">247</span> }<a name="line.247"></a> -<span class="sourceLineNo">248</span><a name="line.248"></a> -<span class="sourceLineNo">249</span> @Override<a name="line.249"></a> -<span class="sourceLineNo">250</span> float getLocalityOfRegion(int region, int server) {<a name="line.250"></a> -<span class="sourceLineNo">251</span> // convert the locality percentage to a fraction<a name="line.251"></a> -<span class="sourceLineNo">252</span> return localityValue[region][server] / 100.0f;<a name="line.252"></a> -<span class="sourceLineNo">253</span> }<a name="line.253"></a> -<span class="sourceLineNo">254</span> }<a name="line.254"></a> -<span class="sourceLineNo">255</span><a name="line.255"></a> -<span class="sourceLineNo">256</span> // This class is introduced because IP to rack resolution can be lengthy.<a name="line.256"></a> -<span class="sourceLineNo">257</span> public static class MockMapping implements DNSToSwitchMapping {<a name="line.257"></a> -<span class="sourceLineNo">258</span> public MockMapping(Configuration conf) {<a name="line.258"></a> -<span class="sourceLineNo">259</span> }<a name="line.259"></a> -<span class="sourceLineNo">260</span><a name="line.260"></a> -<span class="sourceLineNo">261</span> public List<String> resolve(List<String> names) {<a name="line.261"></a> -<span class="sourceLineNo">262</span> List<String> ret = new ArrayList<>(names.size());<a name="line.262"></a> -<span class="sourceLineNo">263</span> for (String name : names) {<a name="line.263"></a> -<span class="sourceLineNo">264</span> ret.add("rack");<a name="line.264"></a> -<span class="sourceLineNo">265</span> }<a name="line.265"></a> -<span class="sourceLineNo">266</span> return ret;<a name="line.266"></a> -<span class="sourceLineNo">267</span> }<a name="line.267"></a> -<span class="sourceLineNo">268</span><a name="line.268"></a> -<span class="sourceLineNo">269</span> // do not add @Override annotations here. It mighty break compilation with earlier Hadoops<a name="line.269"></a> -<span class="sourceLineNo">270</span> public void reloadCachedMappings() {<a name="line.270"></a> -<span class="sourceLineNo">271</span> }<a name="line.271"></a> -<span class="sourceLineNo">272</span><a name="line.272"></a> -<span class="sourceLineNo">273</span> // do not add @Override annotations here. It mighty break compilation with earlier Hadoops<a name="line.273"></a> -<span class="sourceLineNo">274</span> public void reloadCachedMappings(List<String> arg0) {<a name="line.274"></a> +<span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.Arrays;<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.LinkedList;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.Map.Entry;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.Queue;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import java.util.Random;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import java.util.Set;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import java.util.SortedSet;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import java.util.TreeMap;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import java.util.TreeSet;<a name="line.37"></a> +<span class="sourceLineNo">038</span><a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.commons.logging.Log;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.commons.logging.LogFactory;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.conf.Configuration;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.ServerName;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.TableName;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.RackManager;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.master.RegionPlan;<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.apache.hadoop.net.DNSToSwitchMapping;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.junit.Assert;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.junit.BeforeClass;<a name="line.52"></a> +<span class="sourceLineNo">053</span><a name="line.53"></a> +<span class="sourceLineNo">054</span>/**<a name="line.54"></a> +<span class="sourceLineNo">055</span> * Class used to be the base of unit tests on load balancers. It gives helper<a name="line.55"></a> +<span class="sourceLineNo">056</span> * methods to create maps of {@link ServerName} to lists of {@link HRegionInfo}<a name="line.56"></a> +<span class="sourceLineNo">057</span> * and to check list of region plans.<a name="line.57"></a> +<span class="sourceLineNo">058</span> *<a name="line.58"></a> +<span class="sourceLineNo">059</span> */<a name="line.59"></a> +<span class="sourceLineNo">060</span>public class BalancerTestBase {<a name="line.60"></a> +<span class="sourceLineNo">061</span> private static final Log LOG = LogFactory.getLog(BalancerTestBase.class);<a name="line.61"></a> +<span class="sourceLineNo">062</span> protected static Random rand = new Random();<a name="line.62"></a> +<span class="sourceLineNo">063</span> static int regionId = 0;<a name="line.63"></a> +<span class="sourceLineNo">064</span> protected static Configuration conf;<a name="line.64"></a> +<span class="sourceLineNo">065</span> protected static StochasticLoadBalancer loadBalancer;<a name="line.65"></a> +<span class="sourceLineNo">066</span><a name="line.66"></a> +<span class="sourceLineNo">067</span> @BeforeClass<a name="line.67"></a> +<span class="sourceLineNo">068</span> public static void beforeAllTests() throws Exception {<a name="line.68"></a> +<span class="sourceLineNo">069</span> conf = HBaseConfiguration.create();<a name="line.69"></a> +<span class="sourceLineNo">070</span> conf.setClass("hbase.util.ip.to.rack.determiner", MockMapping.class, DNSToSwitchMapping.class);<a name="line.70"></a> +<span class="sourceLineNo">071</span> conf.setFloat("hbase.master.balancer.stochastic.maxMovePercent", 0.75f);<a name="line.71"></a> +<span class="sourceLineNo">072</span> conf.setFloat("hbase.regions.slop", 0.0f);<a name="line.72"></a> +<span class="sourceLineNo">073</span> conf.setFloat("hbase.master.balancer.stochastic.localityCost", 0);<a name="line.73"></a> +<span class="sourceLineNo">074</span> loadBalancer = new StochasticLoadBalancer();<a name="line.74"></a> +<span class="sourceLineNo">075</span> loadBalancer.setConf(conf);<a name="line.75"></a> +<span class="sourceLineNo">076</span> }<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> protected int[] largeCluster = new int[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.78"></a> +<span class="sourceLineNo">079</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.79"></a> +<span class="sourceLineNo">080</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.80"></a> +<span class="sourceLineNo">081</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.81"></a> +<span class="sourceLineNo">082</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.82"></a> +<span class="sourceLineNo">083</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.83"></a> +<span class="sourceLineNo">084</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.84"></a> +<span class="sourceLineNo">085</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.85"></a> +<span class="sourceLineNo">086</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.86"></a> +<span class="sourceLineNo">087</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.87"></a> +<span class="sourceLineNo">088</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.88"></a> +<span class="sourceLineNo">089</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.89"></a> +<span class="sourceLineNo">090</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,<a name="line.90"></a> +<span class="sourceLineNo">091</span> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 56 };<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> // int[testnum][servernumber] -> numregions<a name="line.93"></a> +<span class="sourceLineNo">094</span> protected int[][] clusterStateMocks = new int[][]{<a name="line.94"></a> +<span class="sourceLineNo">095</span> // 1 node<a name="line.95"></a> +<span class="sourceLineNo">096</span> new int[]{0},<a name="line.96"></a> +<span class="sourceLineNo">097</span> new int[]{1},<a name="line.97"></a> +<span class="sourceLineNo">098</span> new int[]{10},<a name="line.98"></a> +<span class="sourceLineNo">099</span> // 2 node<a name="line.99"></a> +<span class="sourceLineNo">100</span> new int[]{0, 0},<a name="line.100"></a> +<span class="sourceLineNo">101</span> new int[]{2, 0},<a name="line.101"></a> +<span class="sourceLineNo">102</span> new int[]{2, 1},<a name="line.102"></a> +<span class="sourceLineNo">103</span> new int[]{2, 2},<a name="line.103"></a> +<span class="sourceLineNo">104</span> new int[]{2, 3},<a name="line.104"></a> +<span class="sourceLineNo">105</span> new int[]{2, 4},<a name="line.105"></a> +<span class="sourceLineNo">106</span> new int[]{1, 1},<a name="line.106"></a> +<span class="sourceLineNo">107</span> new int[]{0, 1},<a name="line.107"></a> +<span class="sourceLineNo">108</span> new int[]{10, 1},<a name="line.108"></a> +<span class="sourceLineNo">109</span> new int[]{514, 1432},<a name="line.109"></a> +<span class="sourceLineNo">110</span> new int[]{48, 53},<a name="line.110"></a> +<span class="sourceLineNo">111</span> // 3 node<a name="line.111"></a> +<span class="sourceLineNo">112</span> new int[]{0, 1, 2},<a name="line.112"></a> +<span class="sourceLineNo">113</span> new int[]{1, 2, 3},<a name="line.113"></a> +<span class="sourceLineNo">114</span> new int[]{0, 2, 2},<a name="line.114"></a> +<span class="sourceLineNo">115</span> new int[]{0, 3, 0},<a name="line.115"></a> +<span class="sourceLineNo">116</span> new int[]{0, 4, 0},<a name="line.116"></a> +<span class="sourceLineNo">117</span> new int[]{20, 20, 0},<a name="line.117"></a> +<span class="sourceLineNo">118</span> // 4 node<a name="line.118"></a> +<span class="sourceLineNo">119</span> new int[]{0, 1, 2, 3},<a name="line.119"></a> +<span class="sourceLineNo">120</span> new int[]{4, 0, 0, 0},<a name="line.120"></a> +<span class="sourceLineNo">121</span> new int[]{5, 0, 0, 0},<a name="line.121"></a> +<span class="sourceLineNo">122</span> new int[]{6, 6, 0, 0},<a name="line.122"></a> +<span class="sourceLineNo">123</span> new int[]{6, 2, 0, 0},<a name="line.123"></a> +<span class="sourceLineNo">124</span> new int[]{6, 1, 0, 0},<a name="line.124"></a> +<span class="sourceLineNo">125</span> new int[]{6, 0, 0, 0},<a name="line.125"></a> +<span class="sourceLineNo">126</span> new int[]{4, 4, 4, 7},<a name="line.126"></a> +<span class="sourceLineNo">127</span> new int[]{4, 4, 4, 8},<a name="line.127"></a> +<span class="sourceLineNo">128</span> new int[]{0, 0, 0, 7},<a name="line.128"></a> +<span class="sourceLineNo">129</span> // 5 node<a name="line.129"></a> +<span class="sourceLineNo">130</span> new int[]{1, 1, 1, 1, 4},<a name="line.130"></a> +<span class="sourceLineNo">131</span> // 6 nodes<a name="line.131"></a> +<span class="sourceLineNo">132</span> new int[]{1500, 500, 500, 500, 10, 0},<a name="line.132"></a> +<span class="sourceLineNo">133</span> new int[]{1500, 500, 500, 500, 500, 0},<a name="line.133"></a> +<span class="sourceLineNo">134</span> // more nodes<a name="line.134"></a> +<span class="sourceLineNo">135</span> new int[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},<a name="line.135"></a> +<span class="sourceLineNo">136</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 10},<a name="line.136"></a> +<span class="sourceLineNo">137</span> new int[]{6, 6, 5, 6, 6, 6, 6, 6, 6, 1},<a name="line.137"></a> +<span class="sourceLineNo">138</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 54},<a name="line.138"></a> +<span class="sourceLineNo">139</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 55},<a name="line.139"></a> +<span class="sourceLineNo">140</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 56},<a name="line.140"></a> +<span class="sourceLineNo">141</span> new int[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 16},<a name="line.141"></a> +<span class="sourceLineNo">142</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 8},<a name="line.142"></a> +<span class="sourceLineNo">143</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 9},<a name="line.143"></a> +<span class="sourceLineNo">144</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 10},<a name="line.144"></a> +<span class="sourceLineNo">145</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 123},<a name="line.145"></a> +<span class="sourceLineNo">146</span> new int[]{1, 1, 1, 1, 1, 1, 1, 1, 1, 155},<a name="line.146"></a> +<span class="sourceLineNo">147</span> new int[]{10, 7, 12, 8, 11, 10, 9, 14},<a name="line.147"></a> +<span class="sourceLineNo">148</span> new int[]{13, 14, 6, 10, 10, 10, 8, 10},<a name="line.148"></a> +<span class="sourceLineNo">149</span> new int[]{130, 14, 60, 10, 100, 10, 80, 10},<a name="line.149"></a> +<span class="sourceLineNo">150</span> new int[]{130, 140, 60, 100, 100, 100, 80, 100},<a name="line.150"></a> +<span class="sourceLineNo">151</span> new int[]{0, 5 , 5, 5, 5},<a name="line.151"></a> +<span class="sourceLineNo">152</span> largeCluster,<a name="line.152"></a> +<span class="sourceLineNo">153</span><a name="line.153"></a> +<span class="sourceLineNo">154</span> };<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> /**<a name="line.156"></a> +<span class="sourceLineNo">157</span> * Data set for testLocalityCost:<a name="line.157"></a> +<span class="sourceLineNo">158</span> *<a name="line.158"></a> +<span class="sourceLineNo">159</span> * [test][regions][0] = [serverIndex] -> number of regions<a name="line.159"></a> +<span class="sourceLineNo">160</span> * [test][regions][regionIndex+1] = {server hosting region, locality percentage, datanodes}<a name="line.160"></a> +<span class="sourceLineNo">161</span> *<a name="line.161"></a> +<span class="sourceLineNo">162</span> * For each [test], there is a list of cluster config information grouped by [regions].<a name="line.162"></a> +<span class="sourceLineNo">163</span> * - [0] - the first element of the [regions] list is a list of servers with the value<a name="line.163"></a> +<span class="sourceLineNo">164</span> * indicating the number of regions it hosts.<a name="line.164"></a> +<span class="sourceLineNo">165</span> * - [regionIndex+1] - the remaining elements of the array are regions, where the index value<a name="line.165"></a> +<span class="sourceLineNo">166</span> * is 1 greater than the regionIndex. This element holds an array that identifies:<a name="line.166"></a> +<span class="sourceLineNo">167</span> * [0] - the serverIndex of the server hosting this region<a name="line.167"></a> +<span class="sourceLineNo">168</span> * [1] - the locality percentage returned by getLocalityOfRegion(region, server) when the<a name="line.168"></a> +<span class="sourceLineNo">169</span> * server is hosting both region and the hdfs blocks.<a name="line.169"></a> +<span class="sourceLineNo">170</span> * [.] - the serverIndex of servers hosting the hdfs blocks, where a value of -1 indicates<a name="line.170"></a> +<span class="sourceLineNo">171</span> * a dfs server not in the list of region servers.<a name="line.171"></a> +<span class="sourceLineNo">172</span> */<a name="line.172"></a> +<span class="sourceLineNo">173</span> protected int[][][] clusterRegionLocationMocks = new int[][][]{<a name="line.173"></a> +<span class="sourceLineNo">174</span> // Test 1: Basic region placement with 1 region server not hosting dfs block<a name="line.174"></a> +<span class="sourceLineNo">175</span> // Locality Calculation:<a name="line.175"></a> +<span class="sourceLineNo">176</span> // region[0] = 1 - 80/100 = (.2) - server[2] hosts both the region and dfs blocks<a name="line.176"></a> +<span class="sourceLineNo">177</span> // region[1] = 1.0 - server[0] only hosts the region, not dfs blocks<a name="line.177"></a> +<span class="sourceLineNo">178</span> // region[2] = 1 - 70/100 = (.3) - server[1] hosts both the region and dfs blocks<a name="line.178"></a> +<span class="sourceLineNo">179</span> //<a name="line.179"></a> +<span class="sourceLineNo">180</span> // RESULT = 0.2 + 1.0 + 0.3 / 3.0 (3.0 is max value)<a name="line.180"></a> +<span class="sourceLineNo">181</span> // = 1.5 / 3.0<a name="line.181"></a> +<span class="sourceLineNo">182</span> // = 0.5<a name="line.182"></a> +<span class="sourceLineNo">183</span> new int[][]{<a name="line.183"></a> +<span class="sourceLineNo">184</span> new int[]{1, 1, 1}, // 3 region servers with 1 region each<a name="line.184"></a> +<span class="sourceLineNo">185</span> new int[]{2, 80, 1, 2, 0}, // region[0] on server[2] w/ 80% locality<a name="line.185"></a> +<span class="sourceLineNo">186</span> new int[]{0, 50, 1, 2}, // region[1] on server[0] w/ 50% , but no local dfs blocks<a name="line.186"></a> +<span class="sourceLineNo">187</span> new int[]{1, 70, 2, 0, 1}, // region[2] on server[1] w/ 70% locality<a name="line.187"></a> +<span class="sourceLineNo">188</span> },<a name="line.188"></a> +<span class="sourceLineNo">189</span><a name="line.189"></a> +<span class="sourceLineNo">190</span> // Test 2: Sames as Test 1, but the last region has a datanode that isn't a region server<a name="line.190"></a> +<span class="sourceLineNo">191</span> new int[][]{<a name="line.191"></a> +<span class="sourceLineNo">192</span> new int[]{1, 1, 1},<a name="line.192"></a> +<span class="sourceLineNo">193</span> new int[]{2, 80, 1, 2, 0},<a name="line.193"></a> +<span class="sourceLineNo">194</span> new int[]{0, 50, 1, 2},<a name="line.194"></a> +<span class="sourceLineNo">195</span> new int[]{1, 70, -1, 2, 0, 1}, // the first region location is not on a region server<a name="line.195"></a> +<span class="sourceLineNo">196</span> },<a name="line.196"></a> +<span class="sourceLineNo">197</span> };<a name="line.197"></a> +<span class="sourceLineNo">198</span><a name="line.198"></a> +<span class="sourceLineNo">199</span> // This mock allows us to test the LocalityCostFunction<a name="line.199"></a> +<span class="sourceLineNo">200</span> protected class MockCluster extends BaseLoadBalancer.Cluster {<a name="line.200"></a> +<span class="sourceLineNo">201</span><a name="line.201"></a> +<span class="sourceLineNo">202</span> protected int[][] localityValue = null; // [region][server] = percent of blocks<a name="line.202"></a> +<span class="sourceLineNo">203</span><a name="line.203"></a> +<span class="sourceLineNo">204</span> protected MockCluster(int[][] regions) {<a name="line.204"></a> +<span class="sourceLineNo">205</span><a name="line.205"></a> +<span class="sourceLineNo">206</span> // regions[0] is an array where index = serverIndex an value = number of regions<a name="line.206"></a> +<span class="sourceLineNo">207</span> super(mockClusterServers(regions[0], 1), null, null, null);<a name="line.207"></a> +<span class="sourceLineNo">208</span><a name="line.208"></a> +<span class="sourceLineNo">209</span> localityValue = new int[regions.length-1][];<a name="line.209"></a> +<span class="sourceLineNo">210</span> // the remaining elements in the regions array contain values for:<a name="line.210"></a> +<span class="sourceLineNo">211</span> // [0] - the serverIndex of the server hosting this region<a name="line.211"></a> +<span class="sourceLineNo">212</span> // [1] - the locality percentage (in whole numbers) for the hosting region server<a name="line.212"></a> +<span class="sourceLineNo">213</span> // [.] - a list of servers hosting dfs blocks for the region (-1 means its not one<a name="line.213"></a> +<span class="sourceLineNo">214</span> // of our region servers.<a name="line.214"></a> +<span class="sourceLineNo">215</span> for (int i = 1; i < regions.length; i++){<a name="line.215"></a> +<span class="sourceLineNo">216</span> int regionIndex = i - 1;<a name="line.216"></a> +<span class="sourceLineNo">217</span> int serverIndex = regions[i][0];<a name="line.217"></a> +<span class="sourceLineNo">218</span> int locality = regions[i][1];<a name="line.218"></a> +<span class="sourceLineNo">219</span> int[] locations = Arrays.copyOfRange(regions[i], 2, regions[i].length);<a name="line.219"></a> +<span class="sourceLineNo">220</span><a name="line.220"></a> +<span class="sourceLineNo">221</span> regionIndexToServerIndex[regionIndex] = serverIndex;<a name="line.221"></a> +<span class="sourceLineNo">222</span> localityValue[regionIndex] = new int[servers.length];<a name="line.222"></a> +<span class="sourceLineNo">223</span> localityValue[regionIndex][serverIndex] = (locality > 100)? locality % 100 : locality;<a name="line.223"></a> +<span class="sourceLineNo">224</span> regionLocations[regionIndex] = locations;<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span> }<a name="line.226"></a> +<span class="sourceLineNo">227</span><a name="line.227"></a> +<span class="sourceLineNo">228</span> @Override<a name="line.228"></a> +<span class="sourceLineNo">229</span> float getLocalityOfRegion(int region, int server) {<a name="line.229"></a> +<span class="sourceLineNo">230</span> // convert the locality percentage to a fraction<a name="line.230"></a> +<span class="sourceLineNo">231</span> return localityValue[region][server] / 100.0f;<a name="line.231"></a> +<span class="sourceLineNo">232</span> }<a name="line.232"></a> +<span class="sourceLineNo">233</span> }<a name="line.233"></a> +<span class="sourceLineNo">234</span><a name="line.234"></a> +<span class="sourceLineNo">235</span> // This class is introduced because IP to rack resolution can be lengthy.<a name="line.235"></a> +<span class="sourceLineNo">236</span> public static class MockMapping implements DNSToSwitchMapping {<a name="line.236"></a> +<span class="sourceLineNo">237</span> public MockMapping(Configuration conf) {<a name="line.237"></a> +<span class="sourceLineNo">238</span> }<a name="line.238"></a> +<span class="sourceLineNo">239</span><a name="line.239"></a> +<span class="sourceLineNo">240</span> public List<String> resolve(List<String> names) {<a name="line.240"></a> +<span class="sourceLineNo">241</span> List<String> ret = new ArrayList<>(names.size());<a name="line.241"></a> +<span class="sourceLineNo">242</span> for (String name : names) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> ret.add("rack");<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span> return ret;<a name="line.245"></a> +<span class="sourceLineNo">246</span> }<a name="line.246"></a> +<span class="sourceLineNo">247</span><a name="line.247"></a> +<span class="sourceLineNo">248</span> // do not add @Override annotations here. It mighty break compilation with earlier Hadoops<a name="line.248"></a> +<span class="sourceLineNo">249</span> public void reloadCachedMappings() {<a name="line.249"></a> +<span class="sourceLineNo">250</span> }<a name="line.250"></a> +<span class="sourceLineNo">251</span><a name="line.251"></a> +<span class="sourceLineNo">252</span> // do not add @Override annotations here. It mighty break compilation with earlier Hadoops<a name="line.252"></a> +<span class="sourceLineNo">253</span> public void reloadCachedMappings(List<String> arg0) {<a name="line.253"></a> +<span class="sourceLineNo">254</span> }<a name="line.254"></a> +<span class="sourceLineNo">255</span> }<a name="line.255"></a> +<span class="sourceLineNo">256</span><a name="line.256"></a> +<span class="sourceLineNo">257</span> /**<a name="line.257"></a> +<span class="sourceLineNo">258</span> * Invariant is that all servers have between floor(avg) and ceiling(avg)<a name="line.258"></a> +<span class="sourceLineNo">259</span> * number of regions.<a name="line.259"></a> +<span class="sourceLineNo">260</span> */<a name="line.260"></a> +<span class="sourceLineNo">261</span> public void assertClusterAsBalanced(List<ServerAndLoad> servers) {<a name="line.261"></a> +<span class="sourceLineNo">262</span> int numServers = servers.size();<a name="line.262"></a> +<span class="sourceLineNo">263</span> int numRegions = 0;<a name="line.263"></a> +<span class="sourceLineNo">264</span> int maxRegions = 0;<a name="line.264"></a> +<span class="sourceLineNo">265</span> int minRegions = Integer.MAX_VALUE;<a name="line.265"></a> +<span class="sourceLineNo">266</span> for (ServerAndLoad server : servers) {<a name="line.266"></a> +<span class="sourceLineNo">267</span> int nr = server.getLoad();<a name="line.267"></a> +<span class="sourceLineNo">268</span> if (nr > maxRegions) {<a name="line.268"></a> +<span class="sourceLineNo">269</span> maxRegions = nr;<a name="line.269"></a> +<span class="sourceLineNo">270</span> }<a name="line.270"></a> +<span class="sourceLineNo">271</span> if (nr < minRegions) {<a name="line.271"></a> +<span class="sourceLineNo">272</span> minRegions = nr;<a name="line.272"></a> +<span class="sourceLineNo">273</span> }<a name="line.273"></a> +<span class="sourceLineNo">274</span> numRegions += nr;<a name="line.274"></a> <span class="sourceLineNo">275</span> }<a 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class="sourceLineNo">287</span> for (ServerAndLoad server : servers) {<a name="line.287"></a> -<span class="sourceLineNo">288</span> int nr = server.getLoad();<a name="line.288"></a> -<span class="sourceLineNo">289</span> if (nr > maxRegions) {<a name="line.289"></a> -<span class="sourceLineNo">290</span> maxRegions = nr;<a name="line.290"></a> -<span class="sourceLineNo">291</span> }<a name="line.291"></a> -<span class="sourceLineNo">292</span> if (nr < minRegions) {<a name="line.292"></a> -<span class="sourceLineNo">293</span> minRegions = nr;<a name="line.293"></a> -<span class="sourceLineNo">294</span> }<a name="line.294"></a> -<span class="sourceLineNo">295</span> numRegions += nr;<a name="line.295"></a> -<span class="sourceLineNo">296</span> }<a name="line.296"></a> -<span class="sourceLineNo">297</span> if (maxRegions - minRegions < 2) {<a name="line.297"></a> -<span class="sourceLineNo">298</span> // less than 2 between max and min, can't balance<a name="line.298"></a> -<span class="sourceLineNo">299</span> return;<a name="line.299"></a> -<span class="sourceLineNo">300</span> }<a name="line.300"></a> -<span class="sourceLineNo">301</span> int min = numRegions / numServers;<a name="line.301"></a> -<span class="sourceLineNo">302</span> int max = numRegions % numServers == 0 ? min : min + 1;<a name="line.302"></a> -<span class="sourceLineNo">303</span><a name="line.303"></a> -<span class="sourceLineNo">304</span> for (ServerAndLoad server : servers) {<a name="line.304"></a> -<span class="sourceLineNo">305</span> assertTrue(server.getLoad() >= 0);<a name="line.305"></a> -<span class="sourceLineNo">306</span> assertTrue(server.getLoad() <= max);<a name="line.306"></a> -<span class="sourceLineNo">307</span> assertTrue(server.getLoad() >= min);<a name="line.307"></a> +<span class="sourceLineNo">276</span> if (maxRegions - minRegions < 2) {<a name="line.276"></a> +<span class="sourceLineNo">277</span> // less than 2 between max and min, can't balance<a 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public void assertRegionReplicaPlacement(Map<ServerName, List<HRegionInfo>> serverMap, RackManager rackManager) {<a name="line.347"></a> -<span class="sourceLineNo">348</span> TreeMap<String, Set<HRegionInfo>> regionsPerHost = new TreeMap<>();<a name="line.348"></a> -<span class="sourceLineNo">349</span> TreeMap<String, Set<HRegionInfo>> regionsPerRack = new TreeMap<>();<a name="line.349"></a> -<span class="sourceLineNo">350</span><a name="line.350"></a> -<span class="sourceLineNo">351</span> for (Entry<ServerName, List<HRegionInfo>> entry : serverMap.entrySet()) {<a name="line.351"></a> -<span class="sourceLineNo">352</span> String hostname = entry.getKey().getHostname();<a name="line.352"></a> -<span class="sourceLineNo">353</span> Set<HRegionInfo> infos = regionsPerHost.get(hostname);<a name="line.353"></a> -<span class="sourceLineNo">354</span> if (infos == null) {<a name="line.354"></a> -<span class="sourceLineNo">355</span> infos = new HashSet<>();<a name="line.355"></a> -<span class="sourceLineNo">356</span> regionsPerHost.put(hostname, infos);<a name="line.356"></a> -<span class="sourceLineNo">357</span> }<a name="line.357"></a> -<span class="sourceLineNo">358</span><a name="line.358"></a> -<span class="sourceLineNo">359</span> for (HRegionInfo info : entry.getValue()) {<a name="line.359"></a> -<span class="sourceLineNo">360</span> HRegionInfo primaryInfo = RegionReplicaUtil.getRegionInfoForDefaultReplica(info);<a name="line.360"></a> -<span class="sourceLineNo">361</span> if (!infos.add(primaryInfo)) {<a name="line.361"></a> -<span class="sourceLineNo">362</span> Assert.fail("Two or more region replicas are hosted on the same host after balance");<a name="line.362"></a> -<span class="sourceLineNo">363</span> }<a name="line.363"></a> -<span class="sourceLineNo">364</span> }<a name="line.364"></a> -<span class="sourceLineNo">365</span> }<a name="line.365"></a> +<span class="sourceLineNo">309</span> if (maxRegions - minRegions < 2) {<a name="line.309"></a> 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serverMap.entrySet()) {<a name="line.330"></a> +<span class="sourceLineNo">331</span> String hostname = entry.getKey().getHostname();<a name="line.331"></a> +<span class="sourceLineNo">332</span> Set<HRegionInfo> infos = regionsPerHost.get(hostname);<a name="line.332"></a> +<span class="sourceLineNo">333</span> if (infos == null) {<a name="line.333"></a> +<span class="sourceLineNo">334</span> infos = new HashSet<>();<a name="line.334"></a> +<span class="sourceLineNo">335</span> regionsPerHost.put(hostname, infos);<a name="line.335"></a> +<span class="sourceLineNo">336</span> }<a name="line.336"></a> +<span class="sourceLineNo">337</span><a name="line.337"></a> +<span class="sourceLineNo">338</span> for (HRegionInfo info : entry.getValue()) {<a name="line.338"></a> +<span class="sourceLineNo">339</span> HRegionInfo primaryInfo = RegionReplicaUtil.getRegionInfoForDefaultReplica(info);<a name="line.339"></a> +<span class="sourceLineNo">340</span> if (!infos.add(primaryInfo)) {<a 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Set<HRegionInfo> infos = regionsPerRack.get(rack);<a name="line.352"></a> +<span class="sourceLineNo">353</span> if (infos == null) {<a name="line.353"></a> +<span class="sourceLineNo">354</span> infos = new HashSet<>();<a name="line.354"></a> +<span class="sourceLineNo">355</span> regionsPerRack.put(rack, infos);<a name="line.355"></a> +<span class="sourceLineNo">356</span> }<a name="line.356"></a> +<span class="sourceLineNo">357</span><a name="line.357"></a> +<span class="sourceLineNo">358</span> for (HRegionInfo info : entry.getValue()) {<a name="line.358"></a> +<span class="sourceLineNo">359</span> HRegionInfo primaryInfo = RegionReplicaUtil.getRegionInfoForDefaultReplica(info);<a name="line.359"></a> +<span class="sourceLineNo">360</span> if (!infos.add(primaryInfo)) {<a name="line.360"></a> +<span class="sourceLineNo">361</span> Assert.fail("Two or more region replicas are hosted on the same rack after balance");<a name="line.361"></a> +<span class="sourceLineNo">362</span> }<a 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average + " max=" + max<a name="line.376"></a> +<span class="sourceLineNo">377</span> + " min=" + min + "]";<a name="line.377"></a> +<span class="sourceLineNo">378</span> }<a name="line.378"></a> +<span class="sourceLineNo">379</span><a name="line.379"></a> +<span class="sourceLineNo">380</span> protected List<ServerAndLoad> convertToList(final Map<ServerName, List<HRegionInfo>> servers) {<a name="line.380"></a> +<span class="sourceLineNo">381</span> List<ServerAndLoad> list = new ArrayList<>(servers.size());<a name="line.381"></a> +<span class="sourceLineNo">382</span> for (Map.Entry<ServerName, List<HRegionInfo>> e : servers.entrySet()) {<a name="line.382"></a> +<span class="sourceLineNo">383</span> list.add(new ServerAndLoad(e.getKey(), e.getValue().size()));<a name="line.383"></a> +<span class="sourceLineNo">384</span> }<a name="line.384"></a> +<span class="sourceLineNo">385</span> return list;<a name="line.385"></a> <span class="sourceLineNo">386</span> }<a name="line.386"></a> 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Map<ServerName, List<HRegionInfo>> servers) {<a name="line.436"></a> -<span class="sourceLineNo">437</span> List<ServerAndLoad> result = new ArrayList<>(list.size());<a name="line.437"></a> +<span class="sourceLineNo">426</span> updateLoad(map, source, -1);<a name="line.426"></a> +<span class="sourceLineNo">427</span> ServerName destination = plan.getDestination();<a name="line.427"></a> +<span class="sourceLineNo">428</span> updateLoad(map, destination, +1);<a name="line.428"></a> +<span class="sourceLineNo">429</span><a name="line.429"></a> +<span class="sourceLineNo">430</span> servers.get(source).remove(plan.getRegionInfo());<a name="line.430"></a> +<span class="sourceLineNo">431</span> servers.get(destination).add(plan.getRegionInfo());<a name="line.431"></a> +<span class="sourceLineNo">432</span> }<a name="line.432"></a> +<span class="sourceLineNo">433</span> }<a name="line.433"></a> +<span class="sourceLineNo">434</span> result.clear();<a name="line.434"></a> +<span 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name="line.446"></a> -<span class="sourceLineNo">447</span> updateLoad(map, source, -1);<a name="line.447"></a> -<span class="sourceLineNo">448</span> ServerName destination = plan.getDestination();<a name="line.448"></a> -<span class="sourceLineNo">449</span> updateLoad(map, destination, +1);<a name="line.449"></a> -<span class="sourceLineNo">450</span><a name="line.450"></a> -<span class="sourceLineNo">451</span> servers.get(source).remove(plan.getRegionInfo());<a name="line.451"></a> -<span class="sourceLineNo">452</span> servers.get(destination).add(plan.getRegionInfo());<a name="line.452"></a> -<span class="sourceLineNo">453</span> }<a name="line.453"></a> -<span class="sourceLineNo">454</span> }<a name="line.454"></a> -<span class="sourceLineNo">455</span> result.clear();<a name="line.455"></a> -<span class="sourceLineNo">456</span> result.addAll(map.values());<a name="line.456"></a> -<span class="sourceLineNo">457</span> return result;<a name="line.457"></a> -<span 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<TRUNCATED>
