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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;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.Closeable;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.text.DecimalFormat;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.HashMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.HashSet;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Random;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Scanner;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Set;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.TreeMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.commons.lang3.StringUtils;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.conf.Configuration;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.fs.FileSystem;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.HConstants;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ServerName;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.TableName;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.AsyncClusterConnection;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.AsyncRegionServerAdmin;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.ClusterConnectionFactory;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.favored.FavoredNodesPlan;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.security.User;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.FutureUtils;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.MunkresAssignment;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.slf4j.Logger;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.slf4j.LoggerFactory;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hbase.thirdparty.com.google.common.io.Closeables;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.GnuParser;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.HelpFormatter;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.Options;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.ParseException;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesRequest;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesResponse;<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> * A tool that is used for manipulating and viewing favored nodes information<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * for regions. Run with -h to get a list of the options<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> */<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>@InterfaceAudience.Private<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>// TODO: Remove? Unused. Partially implemented only.<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>public class RegionPlacementMaintainer implements Closeable {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private static final Logger LOG = LoggerFactory.getLogger(RegionPlacementMaintainer.class<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> .getName());<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> //The cost of a placement that should never be assigned.<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private static final float MAX_COST = Float.POSITIVE_INFINITY;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> // The cost of a placement that is undesirable but acceptable.<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private static final float AVOID_COST = 100000f;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> // The amount by which the cost of a placement is increased if it is the<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> // last slot of the server. This is done to more evenly distribute the slop<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> // amongst servers.<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private static final float LAST_SLOT_COST_PENALTY = 0.5f;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // The amount by which the cost of a primary placement is penalized if it is<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> // not the host currently serving the region. This is done to minimize moves.<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private static final float NOT_CURRENT_HOST_PENALTY = 0.1f;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> private static boolean USE_MUNKRES_FOR_PLACING_SECONDARY_AND_TERTIARY = false;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> private Configuration conf;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private final boolean enforceLocality;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> private final boolean enforceMinAssignmentMove;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> private RackManager rackManager;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> private Set<TableName> targetTableSet;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> private AsyncClusterConnection connection;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> public RegionPlacementMaintainer(Configuration conf) throws IOException {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> this(conf, true, true);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span><a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public RegionPlacementMaintainer(Configuration conf, boolean enforceLocality,<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> boolean enforceMinAssignmentMove) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> this.conf = conf;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> this.enforceLocality = enforceLocality;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> this.enforceMinAssignmentMove = enforceMinAssignmentMove;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> this.targetTableSet = new HashSet<>();<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> this.rackManager = new RackManager(conf);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> private static void printHelp(Options opt) {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> new HelpFormatter().printHelp(<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> "RegionPlacement < -w | -u | -n | -v | -t | -h | -overwrite -r regionName -f favoredNodes " +<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> "-diff>" +<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> " [-l false] [-m false] [-d] [-tables t1,t2,...tn] [-zk zk1,zk2,zk3]" +<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> " [-fs hdfs://a.b.c.d:9000] [-hbase_root /HBASE]", opt);<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> private AsyncClusterConnection getConnection() throws IOException {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> if (connection == null) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> connection =<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> ClusterConnectionFactory.createAsyncClusterConnection(this.conf, null, User.getCurrent());<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> return connection;<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> public void setTargetTableName(String[] tableNames) {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (tableNames != null) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> for (String table : tableNames)<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> this.targetTableSet.add(TableName.valueOf(table));<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> /**<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * @return the new RegionAssignmentSnapshot<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> */<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> public SnapshotOfRegionAssignmentFromMeta getRegionAssignmentSnapshot() throws IOException {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> SnapshotOfRegionAssignmentFromMeta currentAssignmentShapshot =<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> new SnapshotOfRegionAssignmentFromMeta(ConnectionFactory.createConnection(conf));<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> currentAssignmentShapshot.initialize();<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> return currentAssignmentShapshot;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> /**<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * Verify the region placement is consistent with the assignment plan<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> */<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> public List<AssignmentVerificationReport> verifyRegionPlacement(boolean isDetailMode)<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> throws IOException {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> System.out.println("Start to verify the region assignment and " +<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> "generate the verification report");<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // Get the region assignment snapshot<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> SnapshotOfRegionAssignmentFromMeta snapshot = this.getRegionAssignmentSnapshot();<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // Get all the tables<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> Set<TableName> tables = snapshot.getTableSet();<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> // Get the region locality map<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> Map<String, Map<String, Float>> regionLocalityMap = null;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (this.enforceLocality == true) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> regionLocalityMap = FSUtils.getRegionDegreeLocalityMappingFromFS(conf);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> List<AssignmentVerificationReport> reports = new ArrayList<>();<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // Iterate all the tables to fill up the verification report<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> for (TableName table : tables) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> if (!this.targetTableSet.isEmpty() &&<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> !this.targetTableSet.contains(table)) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> continue;<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> AssignmentVerificationReport report = new AssignmentVerificationReport();<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> report.fillUp(table, snapshot, regionLocalityMap);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> report.print(isDetailMode);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> reports.add(report);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> return reports;<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> /**<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> * Generate the assignment plan for the existing table<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> *<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> * @param tableName<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> * @param assignmentSnapshot<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * @param regionLocalityMap<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> * @param plan<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> * @param munkresForSecondaryAndTertiary if set on true the assignment plan<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> * for the tertiary and secondary will be generated with Munkres algorithm,<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * otherwise will be generated using placeSecondaryAndTertiaryRS<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * @throws IOException<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> */<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> private void genAssignmentPlan(TableName tableName,<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> SnapshotOfRegionAssignmentFromMeta assignmentSnapshot,<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> Map<String, Map<String, Float>> regionLocalityMap, FavoredNodesPlan plan,<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> boolean munkresForSecondaryAndTertiary) throws IOException {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // Get the all the regions for the current table<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> List<RegionInfo> regions =<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> assignmentSnapshot.getTableToRegionMap().get(tableName);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> int numRegions = regions.size();<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> // Get the current assignment map<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> Map<RegionInfo, ServerName> currentAssignmentMap =<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> assignmentSnapshot.getRegionToRegionServerMap();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> // Get the all the region servers<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> List<ServerName> servers = new ArrayList<>();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> servers.addAll(FutureUtils.get(getConnection().getAdmin().getRegionServers()));<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> LOG.info("Start to generate assignment plan for " + numRegions +<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> " regions from table " + tableName + " with " +<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> servers.size() + " region servers");<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> int slotsPerServer = (int) Math.ceil((float) numRegions /<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> servers.size());<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> int regionSlots = slotsPerServer * servers.size();<a name="line.213"></a> |
| <span class="sourceLineNo">214</span><a name="line.214"></a> |
| <span class="sourceLineNo">215</span> // Compute the primary, secondary and tertiary costs for each region/server<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> // pair. These costs are based only on node locality and rack locality, and<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> // will be modified later.<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> float[][] primaryCost = new float[numRegions][regionSlots];<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> float[][] secondaryCost = new float[numRegions][regionSlots];<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> float[][] tertiaryCost = new float[numRegions][regionSlots];<a name="line.220"></a> |
| <span class="sourceLineNo">221</span><a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (this.enforceLocality && regionLocalityMap != null) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // Transform the locality mapping into a 2D array, assuming that any<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // unspecified locality value is 0.<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> float[][] localityPerServer = new float[numRegions][regionSlots];<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> for (int i = 0; i < numRegions; i++) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> Map<String, Float> serverLocalityMap =<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> regionLocalityMap.get(regions.get(i).getEncodedName());<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> if (serverLocalityMap == null) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> continue;<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> for (int j = 0; j < servers.size(); j++) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> String serverName = servers.get(j).getHostname();<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> if (serverName == null) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> continue;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> Float locality = serverLocalityMap.get(serverName);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> if (locality == null) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> continue;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> for (int k = 0; k < slotsPerServer; k++) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> // If we can't find the locality of a region to a server, which occurs<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> // because locality is only reported for servers which have some<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // blocks of a region local, then the locality for that pair is 0.<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> localityPerServer[i][j * slotsPerServer + k] = locality.floatValue();<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><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // Compute the total rack locality for each region in each rack. The total<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> // rack locality is the sum of the localities of a region on all servers in<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> // a rack.<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> Map<String, Map<RegionInfo, Float>> rackRegionLocality = new HashMap<>();<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> for (int i = 0; i < numRegions; i++) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> RegionInfo region = regions.get(i);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> for (int j = 0; j < regionSlots; j += slotsPerServer) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> String rack = rackManager.getRack(servers.get(j / slotsPerServer));<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> Map<RegionInfo, Float> rackLocality = rackRegionLocality.get(rack);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> if (rackLocality == null) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> rackLocality = new HashMap<>();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> rackRegionLocality.put(rack, rackLocality);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> Float localityObj = rackLocality.get(region);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> float locality = localityObj == null ? 0 : localityObj.floatValue();<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> locality += localityPerServer[i][j];<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> rackLocality.put(region, locality);<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> for (int i = 0; i < numRegions; i++) {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> for (int j = 0; j < regionSlots; j++) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> String rack = rackManager.getRack(servers.get(j / slotsPerServer));<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> Float totalRackLocalityObj =<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> rackRegionLocality.get(rack).get(regions.get(i));<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> float totalRackLocality = totalRackLocalityObj == null ?<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> 0 : totalRackLocalityObj.floatValue();<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> // Primary cost aims to favor servers with high node locality and low<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> // rack locality, so that secondaries and tertiaries can be chosen for<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> // nodes with high rack locality. This might give primaries with<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> // slightly less locality at first compared to a cost which only<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> // considers the node locality, but should be better in the long run.<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> primaryCost[i][j] = 1 - (2 * localityPerServer[i][j] -<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> totalRackLocality);<a name="line.283"></a> |
| <span class="sourceLineNo">284</span><a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // Secondary cost aims to favor servers with high node locality and high<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // rack locality since the tertiary will be chosen from the same rack as<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> // the secondary. This could be negative, but that is okay.<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> secondaryCost[i][j] = 2 - (localityPerServer[i][j] + totalRackLocality);<a name="line.288"></a> |
| <span class="sourceLineNo">289</span><a name="line.289"></a> |
| <span class="sourceLineNo">290</span> // Tertiary cost is only concerned with the node locality. It will later<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> // be restricted to only hosts on the same rack as the secondary.<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> tertiaryCost[i][j] = 1 - localityPerServer[i][j];<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span><a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (this.enforceMinAssignmentMove && currentAssignmentMap != null) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> // We want to minimize the number of regions which move as the result of a<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> // new assignment. Therefore, slightly penalize any placement which is for<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> // a host that is not currently serving the region.<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> for (int i = 0; i < numRegions; i++) {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> for (int j = 0; j < servers.size(); j++) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> ServerName currentAddress = currentAssignmentMap.get(regions.get(i));<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> if (currentAddress != null &&<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> !currentAddress.equals(servers.get(j))) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> for (int k = 0; k < slotsPerServer; k++) {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> primaryCost[i][j * slotsPerServer + k] += NOT_CURRENT_HOST_PENALTY;<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> }<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> }<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> // Artificially increase cost of last slot of each server to evenly<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // distribute the slop, otherwise there will be a few servers with too few<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> // regions and many servers with the max number of regions.<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> for (int i = 0; i < numRegions; i++) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> for (int j = 0; j < regionSlots; j += slotsPerServer) {<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> primaryCost[i][j] += LAST_SLOT_COST_PENALTY;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> secondaryCost[i][j] += LAST_SLOT_COST_PENALTY;<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> tertiaryCost[i][j] += LAST_SLOT_COST_PENALTY;<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> RandomizedMatrix randomizedMatrix = new RandomizedMatrix(numRegions,<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> regionSlots);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> primaryCost = randomizedMatrix.transform(primaryCost);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> int[] primaryAssignment = new MunkresAssignment(primaryCost).solve();<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> primaryAssignment = randomizedMatrix.invertIndices(primaryAssignment);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span><a name="line.330"></a> |
| <span class="sourceLineNo">331</span> // Modify the secondary and tertiary costs for each region/server pair to<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> // prevent a region from being assigned to the same rack for both primary<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> // and either one of secondary or tertiary.<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> for (int i = 0; i < numRegions; i++) {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> int slot = primaryAssignment[i];<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> String rack = rackManager.getRack(servers.get(slot / slotsPerServer));<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> for (int k = 0; k < servers.size(); k++) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> if (!rackManager.getRack(servers.get(k)).equals(rack)) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> continue;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> if (k == slot / slotsPerServer) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> // Same node, do not place secondary or tertiary here ever.<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> for (int m = 0; m < slotsPerServer; m++) {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> secondaryCost[i][k * slotsPerServer + m] = MAX_COST;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> tertiaryCost[i][k * slotsPerServer + m] = MAX_COST;<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> } else {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> // Same rack, do not place secondary or tertiary here if possible.<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> for (int m = 0; m < slotsPerServer; m++) {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> secondaryCost[i][k * slotsPerServer + m] = AVOID_COST;<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> tertiaryCost[i][k * slotsPerServer + m] = AVOID_COST;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> }<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> if (munkresForSecondaryAndTertiary) {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> randomizedMatrix = new RandomizedMatrix(numRegions, regionSlots);<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> secondaryCost = randomizedMatrix.transform(secondaryCost);<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> int[] secondaryAssignment = new MunkresAssignment(secondaryCost).solve();<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> secondaryAssignment = randomizedMatrix.invertIndices(secondaryAssignment);<a name="line.360"></a> |
| <span class="sourceLineNo">361</span><a name="line.361"></a> |
| <span class="sourceLineNo">362</span> // Modify the tertiary costs for each region/server pair to ensure that a<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> // region is assigned to a tertiary server on the same rack as its secondary<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> // server, but not the same server in that rack.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> for (int i = 0; i < numRegions; i++) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> int slot = secondaryAssignment[i];<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> String rack = rackManager.getRack(servers.get(slot / slotsPerServer));<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> for (int k = 0; k < servers.size(); k++) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (k == slot / slotsPerServer) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> // Same node, do not place tertiary here ever.<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> for (int m = 0; m < slotsPerServer; m++) {<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> tertiaryCost[i][k * slotsPerServer + m] = MAX_COST;<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> } else {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> if (rackManager.getRack(servers.get(k)).equals(rack)) {<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> continue;<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> // Different rack, do not place tertiary here if possible.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> for (int m = 0; m < slotsPerServer; m++) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> tertiaryCost[i][k * slotsPerServer + m] = AVOID_COST;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> }<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> }<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span><a name="line.385"></a> |
| <span class="sourceLineNo">386</span> randomizedMatrix = new RandomizedMatrix(numRegions, regionSlots);<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> tertiaryCost = randomizedMatrix.transform(tertiaryCost);<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> int[] tertiaryAssignment = new MunkresAssignment(tertiaryCost).solve();<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> tertiaryAssignment = randomizedMatrix.invertIndices(tertiaryAssignment);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span><a name="line.390"></a> |
| <span class="sourceLineNo">391</span> for (int i = 0; i < numRegions; i++) {<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> List<ServerName> favoredServers<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> = new ArrayList<>(FavoredNodeAssignmentHelper.FAVORED_NODES_NUM);<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> ServerName s = servers.get(primaryAssignment[i] / slotsPerServer);<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> ServerName.NON_STARTCODE));<a name="line.396"></a> |
| <span class="sourceLineNo">397</span><a name="line.397"></a> |
| <span class="sourceLineNo">398</span> s = servers.get(secondaryAssignment[i] / slotsPerServer);<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> ServerName.NON_STARTCODE));<a name="line.400"></a> |
| <span class="sourceLineNo">401</span><a name="line.401"></a> |
| <span class="sourceLineNo">402</span> s = servers.get(tertiaryAssignment[i] / slotsPerServer);<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> ServerName.NON_STARTCODE));<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> // Update the assignment plan<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> plan.updateFavoredNodesMap(regions.get(i), favoredServers);<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> }<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> LOG.info("Generated the assignment plan for " + numRegions +<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> " regions from table " + tableName + " with " +<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> servers.size() + " region servers");<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> LOG.info("Assignment plan for secondary and tertiary generated " +<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> "using MunkresAssignment");<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> } else {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> Map<RegionInfo, ServerName> primaryRSMap = new HashMap<>();<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> for (int i = 0; i < numRegions; i++) {<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> primaryRSMap.put(regions.get(i), servers.get(primaryAssignment[i] / slotsPerServer));<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> FavoredNodeAssignmentHelper favoredNodeHelper =<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> new FavoredNodeAssignmentHelper(servers, conf);<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> favoredNodeHelper.initialize();<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> Map<RegionInfo, ServerName[]> secondaryAndTertiaryMap =<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> favoredNodeHelper.placeSecondaryAndTertiaryWithRestrictions(primaryRSMap);<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> for (int i = 0; i < numRegions; i++) {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> List<ServerName> favoredServers<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> = new ArrayList<>(FavoredNodeAssignmentHelper.FAVORED_NODES_NUM);<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> RegionInfo currentRegion = regions.get(i);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> ServerName s = primaryRSMap.get(currentRegion);<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> ServerName.NON_STARTCODE));<a name="line.429"></a> |
| <span class="sourceLineNo">430</span><a name="line.430"></a> |
| <span class="sourceLineNo">431</span> ServerName[] secondaryAndTertiary =<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> secondaryAndTertiaryMap.get(currentRegion);<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> s = secondaryAndTertiary[0];<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> ServerName.NON_STARTCODE));<a name="line.435"></a> |
| <span class="sourceLineNo">436</span><a name="line.436"></a> |
| <span class="sourceLineNo">437</span> s = secondaryAndTertiary[1];<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> favoredServers.add(ServerName.valueOf(s.getHostname(), s.getPort(),<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> ServerName.NON_STARTCODE));<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> // Update the assignment plan<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> plan.updateFavoredNodesMap(regions.get(i), favoredServers);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> }<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> LOG.info("Generated the assignment plan for " + numRegions +<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> " regions from table " + tableName + " with " +<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> servers.size() + " region servers");<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> LOG.info("Assignment plan for secondary and tertiary generated " +<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> "using placeSecondaryAndTertiaryWithRestrictions method");<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> }<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> }<a name="line.449"></a> |
| <span class="sourceLineNo">450</span><a name="line.450"></a> |
| <span class="sourceLineNo">451</span> public FavoredNodesPlan getNewAssignmentPlan() throws IOException {<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> // Get the current region assignment snapshot by scanning from the META<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> SnapshotOfRegionAssignmentFromMeta assignmentSnapshot =<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> this.getRegionAssignmentSnapshot();<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> // Get the region locality map<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> Map<String, Map<String, Float>> regionLocalityMap = null;<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> if (this.enforceLocality) {<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> regionLocalityMap = FSUtils.getRegionDegreeLocalityMappingFromFS(conf);<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> }<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> // Initialize the assignment plan<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> FavoredNodesPlan plan = new FavoredNodesPlan();<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> // Get the table to region mapping<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> Map<TableName, List<RegionInfo>> tableToRegionMap =<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> assignmentSnapshot.getTableToRegionMap();<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> LOG.info("Start to generate the new assignment plan for the " +<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> + tableToRegionMap.keySet().size() + " tables" );<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> for (TableName table : tableToRegionMap.keySet()) {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> try {<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> if (!this.targetTableSet.isEmpty() &&<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> !this.targetTableSet.contains(table)) {<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> continue;<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> }<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> // TODO: maybe run the placement in parallel for each table<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> genAssignmentPlan(table, assignmentSnapshot, regionLocalityMap, plan,<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> USE_MUNKRES_FOR_PLACING_SECONDARY_AND_TERTIARY);<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> } catch (Exception e) {<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> LOG.error("Get some exceptions for placing primary region server" +<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> "for table " + table + " because " + e);<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> }<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> }<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> LOG.info("Finish to generate the new assignment plan for the " +<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> + tableToRegionMap.keySet().size() + " tables" );<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> return plan;<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> }<a name="line.486"></a> |
| <span class="sourceLineNo">487</span><a name="line.487"></a> |
| <span class="sourceLineNo">488</span> @Override<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> public void close() throws IOException {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> Closeables.close(connection, true);<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> }<a name="line.491"></a> |
| <span class="sourceLineNo">492</span><a name="line.492"></a> |
| <span class="sourceLineNo">493</span> /**<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> * Some algorithms for solving the assignment problem may traverse workers or<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> * jobs in linear order which may result in skewing the assignments of the<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> * first jobs in the matrix toward the last workers in the matrix if the<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> * costs are uniform. To avoid this kind of clumping, we can randomize the<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> * rows and columns of the cost matrix in a reversible way, such that the<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> * solution to the assignment problem can be interpreted in terms of the<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> * original untransformed cost matrix. Rows and columns are transformed<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> * independently such that the elements contained in any row of the input<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> * matrix are the same as the elements in the corresponding output matrix,<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> * and each row has its elements transformed in the same way. Similarly for<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> * columns.<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> */<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> protected static class RandomizedMatrix {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> private final int rows;<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> private final int cols;<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> private final int[] rowTransform;<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> private final int[] rowInverse;<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> private final int[] colTransform;<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> private final int[] colInverse;<a name="line.512"></a> |
| <span class="sourceLineNo">513</span><a name="line.513"></a> |
| <span class="sourceLineNo">514</span> /**<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> * Create a randomization scheme for a matrix of a given size.<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> * @param rows the number of rows in the matrix<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> * @param cols the number of columns in the matrix<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> */<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> public RandomizedMatrix(int rows, int cols) {<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> this.rows = rows;<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> this.cols = cols;<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> Random random = new Random();<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> rowTransform = new int[rows];<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> rowInverse = new int[rows];<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> for (int i = 0; i < rows; i++) {<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> rowTransform[i] = i;<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> }<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> // Shuffle the row indices.<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> for (int i = rows - 1; i >= 0; i--) {<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> int r = random.nextInt(i + 1);<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> int temp = rowTransform[r];<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> rowTransform[r] = rowTransform[i];<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> rowTransform[i] = temp;<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> }<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> // Generate the inverse row indices.<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> for (int i = 0; i < rows; i++) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> rowInverse[rowTransform[i]] = i;<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> }<a name="line.538"></a> |
| <span class="sourceLineNo">539</span><a name="line.539"></a> |
| <span class="sourceLineNo">540</span> colTransform = new int[cols];<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> colInverse = new int[cols];<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> for (int i = 0; i < cols; i++) {<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> colTransform[i] = i;<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> }<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> // Shuffle the column indices.<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> for (int i = cols - 1; i >= 0; i--) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> int r = random.nextInt(i + 1);<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> int temp = colTransform[r];<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> colTransform[r] = colTransform[i];<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> colTransform[i] = temp;<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> }<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> // Generate the inverse column indices.<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> for (int i = 0; i < cols; i++) {<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> colInverse[colTransform[i]] = i;<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> }<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> }<a name="line.556"></a> |
| <span class="sourceLineNo">557</span><a name="line.557"></a> |
| <span class="sourceLineNo">558</span> /**<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> * Copy a given matrix into a new matrix, transforming each row index and<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> * each column index according to the randomization scheme that was created<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> * at construction time.<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> * @param matrix the cost matrix to transform<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> * @return a new matrix with row and column indices transformed<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> */<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> public float[][] transform(float[][] matrix) {<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> float[][] result = new float[rows][cols];<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> for (int i = 0; i < rows; i++) {<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> for (int j = 0; j < cols; j++) {<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> result[rowTransform[i]][colTransform[j]] = matrix[i][j];<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> }<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> }<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> return result;<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span><a name="line.574"></a> |
| <span class="sourceLineNo">575</span> /**<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> * Copy a given matrix into a new matrix, transforming each row index and<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> * each column index according to the inverse of the randomization scheme<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> * that was created at construction time.<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> * @param matrix the cost matrix to be inverted<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> * @return a new matrix with row and column indices inverted<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> */<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> public float[][] invert(float[][] matrix) {<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> float[][] result = new float[rows][cols];<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> for (int i = 0; i < rows; i++) {<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> for (int j = 0; j < cols; j++) {<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> result[rowInverse[i]][colInverse[j]] = matrix[i][j];<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> }<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> }<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> return result;<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> }<a name="line.590"></a> |
| <span class="sourceLineNo">591</span><a name="line.591"></a> |
| <span class="sourceLineNo">592</span> /**<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> * Given an array where each element {@code indices[i]} represents the<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> * randomized column index corresponding to randomized row index {@code i},<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> * create a new array with the corresponding inverted indices.<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> * @param indices an array of transformed indices to be inverted<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> * @return an array of inverted indices<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> */<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> public int[] invertIndices(int[] indices) {<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> int[] result = new int[indices.length];<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> for (int i = 0; i < indices.length; i++) {<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> result[rowInverse[i]] = colInverse[indices[i]];<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> }<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> return result;<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> }<a name="line.606"></a> |
| <span class="sourceLineNo">607</span><a name="line.607"></a> |
| <span class="sourceLineNo">608</span> /**<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> * Print the assignment plan to the system output stream<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> * @param plan<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> */<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> public static void printAssignmentPlan(FavoredNodesPlan plan) {<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> if (plan == null) return;<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> LOG.info("========== Start to print the assignment plan ================");<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> // sort the map based on region info<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> Map<String, List<ServerName>> assignmentMap = new TreeMap<>(plan.getAssignmentMap());<a name="line.616"></a> |
| <span class="sourceLineNo">617</span><a name="line.617"></a> |
| <span class="sourceLineNo">618</span> for (Map.Entry<String, List<ServerName>> entry : assignmentMap.entrySet()) {<a name="line.618"></a> |
| <span class="sourceLineNo">619</span><a name="line.619"></a> |
| <span class="sourceLineNo">620</span> String serverList = FavoredNodeAssignmentHelper.getFavoredNodesAsString(entry.getValue());<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> String regionName = entry.getKey();<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> LOG.info("Region: " + regionName );<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> LOG.info("Its favored nodes: " + serverList);<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> }<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> LOG.info("========== Finish to print the assignment plan ================");<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> }<a name="line.626"></a> |
| <span class="sourceLineNo">627</span><a name="line.627"></a> |
| <span class="sourceLineNo">628</span> /**<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> * Update the assignment plan into hbase:meta<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> * @param plan the assignments plan to be updated into hbase:meta<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> * @throws IOException if cannot update assignment plan in hbase:meta<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> */<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> public void updateAssignmentPlanToMeta(FavoredNodesPlan plan)<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> throws IOException {<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> try {<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> LOG.info("Start to update the hbase:meta with the new assignment plan");<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> Map<String, List<ServerName>> assignmentMap = plan.getAssignmentMap();<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> Map<RegionInfo, List<ServerName>> planToUpdate = new HashMap<>(assignmentMap.size());<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> Map<String, RegionInfo> regionToRegionInfoMap =<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> getRegionAssignmentSnapshot().getRegionNameToRegionInfoMap();<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> for (Map.Entry<String, List<ServerName>> entry : assignmentMap.entrySet()) {<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> planToUpdate.put(regionToRegionInfoMap.get(entry.getKey()), entry.getValue());<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> }<a name="line.643"></a> |
| <span class="sourceLineNo">644</span><a name="line.644"></a> |
| <span class="sourceLineNo">645</span> FavoredNodeAssignmentHelper.updateMetaWithFavoredNodesInfo(planToUpdate, conf);<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> LOG.info("Updated the hbase:meta with the new assignment plan");<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> } catch (Exception e) {<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> LOG.error("Failed to update hbase:meta with the new assignment" +<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> "plan because " + e.getMessage());<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> }<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> }<a name="line.651"></a> |
| <span class="sourceLineNo">652</span><a name="line.652"></a> |
| <span class="sourceLineNo">653</span> /**<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> * Update the assignment plan to all the region servers<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> * @param plan<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> * @throws IOException<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> */<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> private void updateAssignmentPlanToRegionServers(FavoredNodesPlan plan)<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> throws IOException{<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> LOG.info("Start to update the region servers with the new assignment plan");<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> // Get the region to region server map<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> Map<ServerName, List<RegionInfo>> currentAssignment =<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> this.getRegionAssignmentSnapshot().getRegionServerToRegionMap();<a name="line.663"></a> |
| <span class="sourceLineNo">664</span><a name="line.664"></a> |
| <span class="sourceLineNo">665</span> // track of the failed and succeeded updates<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> int succeededNum = 0;<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> Map<ServerName, Exception> failedUpdateMap = new HashMap<>();<a name="line.667"></a> |
| <span class="sourceLineNo">668</span><a name="line.668"></a> |
| <span class="sourceLineNo">669</span> for (Map.Entry<ServerName, List<RegionInfo>> entry :<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> currentAssignment.entrySet()) {<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> List<Pair<RegionInfo, List<ServerName>>> regionUpdateInfos = new ArrayList<>();<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> try {<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> // Keep track of the favored updates for the current region server<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> FavoredNodesPlan singleServerPlan = null;<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> // Find out all the updates for the current region server<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> for (RegionInfo region : entry.getValue()) {<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> List<ServerName> favoredServerList = plan.getFavoredNodes(region);<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> if (favoredServerList != null &&<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> favoredServerList.size() == FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> // Create the single server plan if necessary<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> if (singleServerPlan == null) {<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> singleServerPlan = new FavoredNodesPlan();<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> }<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> // Update the single server update<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> singleServerPlan.updateFavoredNodesMap(region, favoredServerList);<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> regionUpdateInfos.add(new Pair<>(region, favoredServerList));<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> }<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> }<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> if (singleServerPlan != null) {<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> // Update the current region server with its updated favored nodes<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> AsyncRegionServerAdmin rsAdmin = getConnection().getRegionServerAdmin(entry.getKey());<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> UpdateFavoredNodesRequest request =<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> RequestConverter.buildUpdateFavoredNodesRequest(regionUpdateInfos);<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> UpdateFavoredNodesResponse updateFavoredNodesResponse =<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> FutureUtils.get(rsAdmin.updateFavoredNodes(request));<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> LOG.info("Region server " +<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> FutureUtils.get(rsAdmin.getServerInfo(RequestConverter.buildGetServerInfoRequest()))<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> .getServerInfo() +<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> " has updated " + updateFavoredNodesResponse.getResponse() + " / " +<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> singleServerPlan.size() + " regions with the assignment plan");<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> succeededNum++;<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> }<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> } catch (Exception e) {<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> failedUpdateMap.put(entry.getKey(), e);<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> }<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> // log the succeeded updates<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> LOG.info("Updated " + succeededNum + " region servers with " +<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> "the new assignment plan");<a name="line.709"></a> |
| <span class="sourceLineNo">710</span><a name="line.710"></a> |
| <span class="sourceLineNo">711</span> // log the failed updates<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> int failedNum = failedUpdateMap.size();<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> if (failedNum != 0) {<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> LOG.error("Failed to update the following + " + failedNum +<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> " region servers with its corresponding favored nodes");<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> for (Map.Entry<ServerName, Exception> entry :<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> failedUpdateMap.entrySet() ) {<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> LOG.error("Failed to update " + entry.getKey().getAddress() +<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> " because of " + entry.getValue().getMessage());<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> }<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> }<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> }<a name="line.722"></a> |
| <span class="sourceLineNo">723</span><a name="line.723"></a> |
| <span class="sourceLineNo">724</span> public void updateAssignmentPlan(FavoredNodesPlan plan)<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> throws IOException {<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> LOG.info("Start to update the new assignment plan for the hbase:meta table and" +<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> " the region servers");<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> // Update the new assignment plan to META<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> updateAssignmentPlanToMeta(plan);<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> // Update the new assignment plan to Region Servers<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> updateAssignmentPlanToRegionServers(plan);<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> LOG.info("Finish to update the new assignment plan for the hbase:meta table and" +<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> " the region servers");<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> }<a name="line.734"></a> |
| <span class="sourceLineNo">735</span><a name="line.735"></a> |
| <span class="sourceLineNo">736</span> /**<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> * Return how many regions will move per table since their primary RS will<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> * change<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> *<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> * @param newPlan - new AssignmentPlan<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> * @return how many primaries will move per table<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> */<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> public Map<TableName, Integer> getRegionsMovement(FavoredNodesPlan newPlan)<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> throws IOException {<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> Map<TableName, Integer> movesPerTable = new HashMap<>();<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> SnapshotOfRegionAssignmentFromMeta snapshot = this.getRegionAssignmentSnapshot();<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> Map<TableName, List<RegionInfo>> tableToRegions = snapshot<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> .getTableToRegionMap();<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> FavoredNodesPlan oldPlan = snapshot.getExistingAssignmentPlan();<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> Set<TableName> tables = snapshot.getTableSet();<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> for (TableName table : tables) {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> int movedPrimaries = 0;<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> if (!this.targetTableSet.isEmpty()<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> && !this.targetTableSet.contains(table)) {<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> continue;<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> }<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> List<RegionInfo> regions = tableToRegions.get(table);<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> for (RegionInfo region : regions) {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> List<ServerName> oldServers = oldPlan.getFavoredNodes(region);<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> List<ServerName> newServers = newPlan.getFavoredNodes(region);<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> if (oldServers != null && newServers != null) {<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> ServerName oldPrimary = oldServers.get(0);<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> ServerName newPrimary = newServers.get(0);<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> if (oldPrimary.compareTo(newPrimary) != 0) {<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> movedPrimaries++;<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> }<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> }<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> }<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> movesPerTable.put(table, movedPrimaries);<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> }<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> return movesPerTable;<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> }<a name="line.772"></a> |
| <span class="sourceLineNo">773</span><a name="line.773"></a> |
| <span class="sourceLineNo">774</span> /**<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> * Compares two plans and check whether the locality dropped or increased<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> * (prints the information as a string) also prints the baseline locality<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> *<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> * @param movesPerTable - how many primary regions will move per table<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> * @param regionLocalityMap - locality map from FS<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> * @param newPlan - new assignment plan<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> * @throws IOException<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> */<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> public void checkDifferencesWithOldPlan(Map<TableName, Integer> movesPerTable,<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> Map<String, Map<String, Float>> regionLocalityMap, FavoredNodesPlan newPlan)<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> throws IOException {<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> // localities for primary, secondary and tertiary<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> SnapshotOfRegionAssignmentFromMeta snapshot = this.getRegionAssignmentSnapshot();<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> FavoredNodesPlan oldPlan = snapshot.getExistingAssignmentPlan();<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> Set<TableName> tables = snapshot.getTableSet();<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> Map<TableName, List<RegionInfo>> tableToRegionsMap = snapshot.getTableToRegionMap();<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> for (TableName table : tables) {<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> float[] deltaLocality = new float[3];<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> float[] locality = new float[3];<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> if (!this.targetTableSet.isEmpty()<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> && !this.targetTableSet.contains(table)) {<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> continue;<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> }<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> List<RegionInfo> regions = tableToRegionsMap.get(table);<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> System.out.println("==================================================");<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> System.out.println("Assignment Plan Projection Report For Table: " + table);<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> System.out.println("\t Total regions: " + regions.size());<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> System.out.println("\t" + movesPerTable.get(table)<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> + " primaries will move due to their primary has changed");<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> for (RegionInfo currentRegion : regions) {<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> Map<String, Float> regionLocality = regionLocalityMap.get(currentRegion<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> .getEncodedName());<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> if (regionLocality == null) {<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> continue;<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> }<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> List<ServerName> oldServers = oldPlan.getFavoredNodes(currentRegion);<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> List<ServerName> newServers = newPlan.getFavoredNodes(currentRegion);<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> if (newServers != null && oldServers != null) {<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> int i=0;<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> ServerName newServer = newServers.get(p.ordinal());<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> ServerName oldServer = oldServers.get(p.ordinal());<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> Float oldLocality = 0f;<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> if (oldServers != null) {<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> oldLocality = regionLocality.get(oldServer.getHostname());<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> if (oldLocality == null) {<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> oldLocality = 0f;<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> }<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> locality[i] += oldLocality;<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> }<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> Float newLocality = regionLocality.get(newServer.getHostname());<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> if (newLocality == null) {<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> newLocality = 0f;<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> }<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> deltaLocality[i] += newLocality - oldLocality;<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> i++;<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> }<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> }<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> }<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> DecimalFormat df = new java.text.DecimalFormat( "#.##");<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> for (int i = 0; i < deltaLocality.length; i++) {<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> System.out.print("\t\t Baseline locality for ");<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> if (i == 0) {<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> System.out.print("primary ");<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> } else if (i == 1) {<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> System.out.print("secondary ");<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> } else if (i == 2) {<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> System.out.print("tertiary ");<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> }<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> System.out.println(df.format(100 * locality[i] / regions.size()) + "%");<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> System.out.print("\t\t Locality will change with the new plan: ");<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> System.out.println(df.format(100 * deltaLocality[i] / regions.size())<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> + "%");<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> }<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> System.out.println("\t Baseline dispersion");<a name="line.849"></a> |
| <span class="sourceLineNo">850</span> printDispersionScores(table, snapshot, regions.size(), null, true);<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> System.out.println("\t Projected dispersion");<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> printDispersionScores(table, snapshot, regions.size(), newPlan, true);<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> }<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> }<a name="line.854"></a> |
| <span class="sourceLineNo">855</span><a name="line.855"></a> |
| <span class="sourceLineNo">856</span> public void printDispersionScores(TableName table,<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> SnapshotOfRegionAssignmentFromMeta snapshot, int numRegions, FavoredNodesPlan newPlan,<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> boolean simplePrint) {<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> if (!this.targetTableSet.isEmpty() && !this.targetTableSet.contains(table)) {<a name="line.859"></a> |
| <span class="sourceLineNo">860</span> return;<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> }<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> AssignmentVerificationReport report = new AssignmentVerificationReport();<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> report.fillUpDispersion(table, snapshot, newPlan);<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> List<Float> dispersion = report.getDispersionInformation();<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> if (simplePrint) {<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> DecimalFormat df = new java.text.DecimalFormat("#.##");<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> System.out.println("\tAvg dispersion score: "<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> + df.format(dispersion.get(0)) + " hosts;\tMax dispersion score: "<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> + df.format(dispersion.get(1)) + " hosts;\tMin dispersion score: "<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> + df.format(dispersion.get(2)) + " hosts;");<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> } else {<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> LOG.info("For Table: " + table + " ; #Total Regions: " + numRegions<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> + " ; The average dispersion score is " + dispersion.get(0));<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> }<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> }<a name="line.875"></a> |
| <span class="sourceLineNo">876</span><a name="line.876"></a> |
| <span class="sourceLineNo">877</span> public void printLocalityAndDispersionForCurrentPlan(<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> Map<String, Map<String, Float>> regionLocalityMap) throws IOException {<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> SnapshotOfRegionAssignmentFromMeta snapshot = this.getRegionAssignmentSnapshot();<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> FavoredNodesPlan assignmentPlan = snapshot.getExistingAssignmentPlan();<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> Set<TableName> tables = snapshot.getTableSet();<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> Map<TableName, List<RegionInfo>> tableToRegionsMap = snapshot<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> .getTableToRegionMap();<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> for (TableName table : tables) {<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> float[] locality = new float[3];<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> if (!this.targetTableSet.isEmpty()<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> && !this.targetTableSet.contains(table)) {<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> continue;<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> }<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> List<RegionInfo> regions = tableToRegionsMap.get(table);<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> for (RegionInfo currentRegion : regions) {<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> Map<String, Float> regionLocality = regionLocalityMap.get(currentRegion<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> .getEncodedName());<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> if (regionLocality == null) {<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> continue;<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> }<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> List<ServerName> servers = assignmentPlan.getFavoredNodes(currentRegion);<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> if (servers != null) {<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> int i = 0;<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> ServerName server = servers.get(p.ordinal());<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> Float currentLocality = 0f;<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> if (servers != null) {<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> currentLocality = regionLocality.get(server.getHostname());<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> if (currentLocality == null) {<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> currentLocality = 0f;<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> }<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> locality[i] += currentLocality;<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> }<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> i++;<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> }<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> }<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> for (int i = 0; i < locality.length; i++) {<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> String copy = null;<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> if (i == 0) {<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> copy = "primary";<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> } else if (i == 1) {<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> copy = "secondary";<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> } else if (i == 2) {<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> copy = "tertiary" ;<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> }<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> float avgLocality = 100 * locality[i] / regions.size();<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> LOG.info("For Table: " + table + " ; #Total Regions: " + regions.size()<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> + " ; The average locality for " + copy+ " is " + avgLocality + " %");<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> }<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> printDispersionScores(table, snapshot, regions.size(), null, false);<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> }<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> }<a name="line.929"></a> |
| <span class="sourceLineNo">930</span><a name="line.930"></a> |
| <span class="sourceLineNo">931</span> /**<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> * @param favoredNodesStr The String of favored nodes<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> * @return the list of ServerName for the byte array of favored nodes.<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> */<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> public static List<ServerName> getFavoredNodeList(String favoredNodesStr) {<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> String[] favoredNodesArray = StringUtils.split(favoredNodesStr, ",");<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> if (favoredNodesArray == null)<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> return null;<a name="line.938"></a> |
| <span class="sourceLineNo">939</span><a name="line.939"></a> |
| <span class="sourceLineNo">940</span> List<ServerName> serverList = new ArrayList<>();<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> for (String hostNameAndPort : favoredNodesArray) {<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> serverList.add(ServerName.valueOf(hostNameAndPort, ServerName.NON_STARTCODE));<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> }<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> return serverList;<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> }<a name="line.945"></a> |
| <span class="sourceLineNo">946</span><a name="line.946"></a> |
| <span class="sourceLineNo">947</span> public static void main(String args[]) throws IOException {<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> Options opt = new Options();<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> opt.addOption("w", "write", false, "write the assignments to hbase:meta only");<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> opt.addOption("u", "update", false,<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> "update the assignments to hbase:meta and RegionServers together");<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> opt.addOption("n", "dry-run", false, "do not write assignments to META");<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> opt.addOption("v", "verify", false, "verify current assignments against META");<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> opt.addOption("p", "print", false, "print the current assignment plan in META");<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> opt.addOption("h", "help", false, "print usage");<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> opt.addOption("d", "verification-details", false,<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> "print the details of verification report");<a name="line.957"></a> |
| <span class="sourceLineNo">958</span><a name="line.958"></a> |
| <span class="sourceLineNo">959</span> opt.addOption("zk", true, "to set the zookeeper quorum");<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> opt.addOption("fs", true, "to set HDFS");<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> opt.addOption("hbase_root", true, "to set hbase_root directory");<a name="line.961"></a> |
| <span class="sourceLineNo">962</span><a name="line.962"></a> |
| <span class="sourceLineNo">963</span> opt.addOption("overwrite", false,<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> "overwrite the favored nodes for a single region," +<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> "for example: -update -r regionName -f server1:port,server2:port,server3:port");<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> opt.addOption("r", true, "The region name that needs to be updated");<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> opt.addOption("f", true, "The new favored nodes");<a name="line.967"></a> |
| <span class="sourceLineNo">968</span><a name="line.968"></a> |
| <span class="sourceLineNo">969</span> opt.addOption("tables", true,<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> "The list of table names splitted by ',' ;" +<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> "For example: -tables: t1,t2,...,tn");<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> opt.addOption("l", "locality", true, "enforce the maximum locality");<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> opt.addOption("m", "min-move", true, "enforce minimum assignment move");<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> opt.addOption("diff", false, "calculate difference between assignment plans");<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> opt.addOption("munkres", false,<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> "use munkres to place secondaries and tertiaries");<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> opt.addOption("ld", "locality-dispersion", false, "print locality and dispersion " +<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> "information for current plan");<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> try {<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> CommandLine cmd = new GnuParser().parse(opt, args);<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> Configuration conf = HBaseConfiguration.create();<a name="line.981"></a> |
| <span class="sourceLineNo">982</span><a name="line.982"></a> |
| <span class="sourceLineNo">983</span> boolean enforceMinAssignmentMove = true;<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> boolean enforceLocality = true;<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> boolean verificationDetails = false;<a name="line.985"></a> |
| <span class="sourceLineNo">986</span><a name="line.986"></a> |
| <span class="sourceLineNo">987</span> // Read all the options<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> if ((cmd.hasOption("l") &&<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> cmd.getOptionValue("l").equalsIgnoreCase("false")) ||<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> (cmd.hasOption("locality") &&<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> cmd.getOptionValue("locality").equalsIgnoreCase("false"))) {<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> enforceLocality = false;<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> }<a name="line.993"></a> |
| <span class="sourceLineNo">994</span><a name="line.994"></a> |
| <span class="sourceLineNo">995</span> if ((cmd.hasOption("m") &&<a name="line.995"></a> |
| <span class="sourceLineNo">996</span> cmd.getOptionValue("m").equalsIgnoreCase("false")) ||<a name="line.996"></a> |
| <span class="sourceLineNo">997</span> (cmd.hasOption("min-move") &&<a name="line.997"></a> |
| <span class="sourceLineNo">998</span> cmd.getOptionValue("min-move").equalsIgnoreCase("false"))) {<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> enforceMinAssignmentMove = false;<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> }<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span><a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> if (cmd.hasOption("zk")) {<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> conf.set(HConstants.ZOOKEEPER_QUORUM, cmd.getOptionValue("zk"));<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> LOG.info("Setting the zk quorum: " + conf.get(HConstants.ZOOKEEPER_QUORUM));<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> }<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span><a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span> if (cmd.hasOption("fs")) {<a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> conf.set(FileSystem.FS_DEFAULT_NAME_KEY, cmd.getOptionValue("fs"));<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> LOG.info("Setting the HDFS: " + conf.get(FileSystem.FS_DEFAULT_NAME_KEY));<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> }<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span><a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> if (cmd.hasOption("hbase_root")) {<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> conf.set(HConstants.HBASE_DIR, cmd.getOptionValue("hbase_root"));<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> LOG.info("Setting the hbase root directory: " + conf.get(HConstants.HBASE_DIR));<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> }<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span><a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> // Create the region placement obj<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> try (RegionPlacementMaintainer rp =<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> new RegionPlacementMaintainer(conf, enforceLocality, enforceMinAssignmentMove)) {<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span><a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> if (cmd.hasOption("d") || cmd.hasOption("verification-details")) {<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> verificationDetails = true;<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> }<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span><a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> if (cmd.hasOption("tables")) {<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> String tableNameListStr = cmd.getOptionValue("tables");<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> String[] tableNames = StringUtils.split(tableNameListStr, ",");<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> rp.setTargetTableName(tableNames);<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> }<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span><a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> if (cmd.hasOption("munkres")) {<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> USE_MUNKRES_FOR_PLACING_SECONDARY_AND_TERTIARY = true;<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> }<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span><a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> // Read all the modes<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> if (cmd.hasOption("v") || cmd.hasOption("verify")) {<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> // Verify the region placement.<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> rp.verifyRegionPlacement(verificationDetails);<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> } else if (cmd.hasOption("n") || cmd.hasOption("dry-run")) {<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> // Generate the assignment plan only without updating the hbase:meta and RS<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> FavoredNodesPlan plan = rp.getNewAssignmentPlan();<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> printAssignmentPlan(plan);<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> } else if (cmd.hasOption("w") || cmd.hasOption("write")) {<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> // Generate the new assignment plan<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> FavoredNodesPlan plan = rp.getNewAssignmentPlan();<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> // Print the new assignment plan<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> printAssignmentPlan(plan);<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> // Write the new assignment plan to META<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> rp.updateAssignmentPlanToMeta(plan);<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> } else if (cmd.hasOption("u") || cmd.hasOption("update")) {<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> // Generate the new assignment plan<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> FavoredNodesPlan plan = rp.getNewAssignmentPlan();<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> // Print the new assignment plan<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> printAssignmentPlan(plan);<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> // Update the assignment to hbase:meta and Region Servers<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> rp.updateAssignmentPlan(plan);<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> } else if (cmd.hasOption("diff")) {<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> FavoredNodesPlan newPlan = rp.getNewAssignmentPlan();<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> Map<String, Map<String, Float>> locality =<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> FSUtils.getRegionDegreeLocalityMappingFromFS(conf);<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> Map<TableName, Integer> movesPerTable = rp.getRegionsMovement(newPlan);<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> rp.checkDifferencesWithOldPlan(movesPerTable, locality, newPlan);<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> System.out.println("Do you want to update the assignment plan? [y/n]");<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> Scanner s = new Scanner(System.in);<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> String input = s.nextLine().trim();<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> if (input.equals("y")) {<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> System.out.println("Updating assignment plan...");<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> rp.updateAssignmentPlan(newPlan);<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> }<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> s.close();<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> } else if (cmd.hasOption("ld")) {<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> Map<String, Map<String, Float>> locality =<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> FSUtils.getRegionDegreeLocalityMappingFromFS(conf);<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> rp.printLocalityAndDispersionForCurrentPlan(locality);<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> } else if (cmd.hasOption("p") || cmd.hasOption("print")) {<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> FavoredNodesPlan plan = rp.getRegionAssignmentSnapshot().getExistingAssignmentPlan();<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> printAssignmentPlan(plan);<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> } else if (cmd.hasOption("overwrite")) {<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> if (!cmd.hasOption("f") || !cmd.hasOption("r")) {<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> throw new IllegalArgumentException("Please specify: " +<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> " -update -r regionName -f server1:port,server2:port,server3:port");<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> }<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span><a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> String regionName = cmd.getOptionValue("r");<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> String favoredNodesStr = cmd.getOptionValue("f");<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> LOG.info("Going to update the region " + regionName + " with the new favored nodes " +<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> favoredNodesStr);<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> List<ServerName> favoredNodes = null;<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> RegionInfo regionInfo =<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> rp.getRegionAssignmentSnapshot().getRegionNameToRegionInfoMap().get(regionName);<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> if (regionInfo == null) {<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> LOG.error("Cannot find the region " + regionName + " from the META");<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> } else {<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> try {<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> favoredNodes = getFavoredNodeList(favoredNodesStr);<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> } catch (IllegalArgumentException e) {<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> LOG.error("Cannot parse the invalid favored nodes because " + e);<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> }<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> FavoredNodesPlan newPlan = new FavoredNodesPlan();<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> newPlan.updateFavoredNodesMap(regionInfo, favoredNodes);<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> rp.updateAssignmentPlan(newPlan);<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> }<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> } else {<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> printHelp(opt);<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> }<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> }<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> } catch (ParseException e) {<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> printHelp(opt);<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> }<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> }<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span>}<a name="line.1111"></a> |
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| </pre> |
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| </html> |
