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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.master;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.text.DecimalFormat;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.HashMap;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.HashSet;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Set;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.ServerName;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.favored.FavoredNodesPlan;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.slf4j.Logger;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.slf4j.LoggerFactory;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>/**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Helper class that is used by RegionPlacementMaintainer to print<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * information for favored nodes<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> *<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> */<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>@InterfaceAudience.Private<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>public class AssignmentVerificationReport {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> private static final Logger LOG = LoggerFactory.getLogger(<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> AssignmentVerificationReport.class.getName());<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private TableName tableName = null;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private boolean enforceLocality = false;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private boolean isFilledUp = false;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private int totalRegions = 0;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private int totalRegionServers = 0;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> // for unassigned regions<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private List<RegionInfo> unAssignedRegionsList = new ArrayList<>();<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> // For regions without valid favored nodes<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private List<RegionInfo> regionsWithoutValidFavoredNodes = new ArrayList<>();<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> // For regions not running on the favored nodes<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private List<RegionInfo> nonFavoredAssignedRegionList = new ArrayList<>();<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> // For regions running on the favored nodes<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private int totalFavoredAssignments = 0;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> private int[] favoredNodes = new int[FavoredNodeAssignmentHelper.FAVORED_NODES_NUM];<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private float[] favoredNodesLocalitySummary =<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> new float[FavoredNodeAssignmentHelper.FAVORED_NODES_NUM];<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private float actualLocalitySummary = 0;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> // For region balancing information<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private float avgRegionsOnRS = 0;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private int maxRegionsOnRS = 0;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private int minRegionsOnRS = Integer.MAX_VALUE;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private Set<ServerName> mostLoadedRSSet = new HashSet<>();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private Set<ServerName> leastLoadedRSSet = new HashSet<>();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private float avgDispersionScore = 0;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private float maxDispersionScore = 0;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private Set<ServerName> maxDispersionScoreServerSet = new HashSet<>();<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private float minDispersionScore = Float.MAX_VALUE;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private Set<ServerName> minDispersionScoreServerSet = new HashSet<>();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private float avgDispersionNum = 0;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private float maxDispersionNum = 0;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private Set<ServerName> maxDispersionNumServerSet = new HashSet<>();<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private float minDispersionNum = Float.MAX_VALUE;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private Set<ServerName> minDispersionNumServerSet = new HashSet<>();<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public void fillUp(TableName tableName, SnapshotOfRegionAssignmentFromMeta snapshot,<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> Map<String, Map<String, Float>> regionLocalityMap) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> // Set the table name<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> this.tableName = tableName;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // Get all the regions for this table<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> List<RegionInfo> regionInfoList =<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> snapshot.getTableToRegionMap().get(tableName);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // Get the total region num for the current table<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> this.totalRegions = regionInfoList.size();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> // Get the existing assignment plan<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> FavoredNodesPlan favoredNodesAssignment = snapshot.getExistingAssignmentPlan();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> // Get the region to region server mapping<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> Map<RegionInfo, ServerName> currentAssignment =<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> snapshot.getRegionToRegionServerMap();<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> // Initialize the server to its hosing region counter map<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> Map<ServerName, Integer> serverToHostingRegionCounterMap = new HashMap<>();<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> Map<ServerName, Integer> primaryRSToRegionCounterMap = new HashMap<>();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> Map<ServerName, Set<ServerName>> primaryToSecTerRSMap = new HashMap<>();<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> // Check the favored nodes and its locality information<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // Also keep tracker of the most loaded and least loaded region servers<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> for (RegionInfo region : regionInfoList) {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> try {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> ServerName currentRS = currentAssignment.get(region);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // Handle unassigned regions<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> if (currentRS == null) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> unAssignedRegionsList.add(region);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> continue;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // Keep updating the server to is hosting region counter map<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> Integer hostRegionCounter = serverToHostingRegionCounterMap.get(currentRS);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (hostRegionCounter == null) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> hostRegionCounter = Integer.valueOf(0);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> hostRegionCounter = hostRegionCounter.intValue() + 1;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> serverToHostingRegionCounterMap.put(currentRS, hostRegionCounter);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // Get the favored nodes from the assignment plan and verify it.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> List<ServerName> favoredNodes = favoredNodesAssignment.getFavoredNodes(region);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> if (favoredNodes == null ||<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> favoredNodes.size() != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> regionsWithoutValidFavoredNodes.add(region);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> continue;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // Get the primary, secondary and tertiary region server<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> ServerName primaryRS =<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> favoredNodes.get(FavoredNodesPlan.Position.PRIMARY.ordinal());<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> ServerName secondaryRS =<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> favoredNodes.get(FavoredNodesPlan.Position.SECONDARY.ordinal());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> ServerName tertiaryRS =<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> favoredNodes.get(FavoredNodesPlan.Position.TERTIARY.ordinal());<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // Update the primary rs to its region set map<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> Integer regionCounter = primaryRSToRegionCounterMap.get(primaryRS);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> if (regionCounter == null) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> regionCounter = Integer.valueOf(0);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> regionCounter = regionCounter.intValue() + 1;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> primaryRSToRegionCounterMap.put(primaryRS, regionCounter);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // Update the primary rs to secondary and tertiary rs map<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> Set<ServerName> secAndTerSet = primaryToSecTerRSMap.get(primaryRS);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> if (secAndTerSet == null) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> secAndTerSet = new HashSet<>();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> secAndTerSet.add(secondaryRS);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> secAndTerSet.add(tertiaryRS);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> primaryToSecTerRSMap.put(primaryRS, secAndTerSet);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // Get the position of the current region server in the favored nodes list<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> FavoredNodesPlan.Position favoredNodePosition =<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> FavoredNodesPlan.getFavoredServerPosition(favoredNodes, currentRS);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // Handle the non favored assignment.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> if (favoredNodePosition == null) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> nonFavoredAssignedRegionList.add(region);<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> // Increase the favored nodes assignment.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> this.favoredNodes[favoredNodePosition.ordinal()]++;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> totalFavoredAssignments++;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> // Summary the locality information for each favored nodes<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (regionLocalityMap != null) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> // Set the enforce locality as true;<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> this.enforceLocality = true;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // Get the region degree locality map<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> Map<String, Float> regionDegreeLocalityMap =<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> regionLocalityMap.get(region.getEncodedName());<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> if (regionDegreeLocalityMap == null) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> continue; // ignore the region which doesn't have any store files.<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // Get the locality summary for each favored nodes<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> ServerName favoredNode = favoredNodes.get(p.ordinal());<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> // Get the locality for the current favored nodes<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> Float locality =<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> regionDegreeLocalityMap.get(favoredNode.getHostname());<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> if (locality != null) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> this.favoredNodesLocalitySummary[p.ordinal()] += locality;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> // Get the locality summary for the current region server<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> Float actualLocality =<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> regionDegreeLocalityMap.get(currentRS.getHostname());<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (actualLocality != null) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> this.actualLocalitySummary += actualLocality;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> } catch (Exception e) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> LOG.error("Cannot verify the region assignment for region " +<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> ((region == null) ? " null " : region.getRegionNameAsString()) +<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> "because of " + e);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> float dispersionScoreSummary = 0;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> float dispersionNumSummary = 0;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // Calculate the secondary score for each primary region server<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> for (Map.Entry<ServerName, Integer> entry :<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> primaryRSToRegionCounterMap.entrySet()) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> ServerName primaryRS = entry.getKey();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> Integer regionsOnPrimary = entry.getValue();<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // Process the dispersion number and score<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> float dispersionScore = 0;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> int dispersionNum = 0;<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (primaryToSecTerRSMap.get(primaryRS) != null<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> && regionsOnPrimary.intValue() != 0) {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> dispersionNum = primaryToSecTerRSMap.get(primaryRS).size();<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> dispersionScore = dispersionNum /<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> ((float) regionsOnPrimary.intValue() * 2);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> // Update the max dispersion score<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> if (dispersionScore > this.maxDispersionScore) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> this.maxDispersionScoreServerSet.clear();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> this.maxDispersionScoreServerSet.add(primaryRS);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> this.maxDispersionScore = dispersionScore;<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> } else if (dispersionScore == this.maxDispersionScore) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> this.maxDispersionScoreServerSet.add(primaryRS);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> // Update the max dispersion num<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> if (dispersionNum > this.maxDispersionNum) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> this.maxDispersionNumServerSet.clear();<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> this.maxDispersionNumServerSet.add(primaryRS);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> this.maxDispersionNum = dispersionNum;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> } else if (dispersionNum == this.maxDispersionNum) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> this.maxDispersionNumServerSet.add(primaryRS);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> }<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> // Update the min dispersion score<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> if (dispersionScore < this.minDispersionScore) {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> this.minDispersionScoreServerSet.clear();<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> this.minDispersionScoreServerSet.add(primaryRS);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> this.minDispersionScore = dispersionScore;<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> } else if (dispersionScore == this.minDispersionScore) {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> this.minDispersionScoreServerSet.add(primaryRS);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> // Update the min dispersion num<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> if (dispersionNum < this.minDispersionNum) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> this.minDispersionNumServerSet.clear();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> this.minDispersionNumServerSet.add(primaryRS);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> this.minDispersionNum = dispersionNum;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> } else if (dispersionNum == this.minDispersionNum) {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> this.minDispersionNumServerSet.add(primaryRS);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span><a name="line.263"></a> |
| <span class="sourceLineNo">264</span> dispersionScoreSummary += dispersionScore;<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> dispersionNumSummary += dispersionNum;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span><a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // Update the avg dispersion score<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> if (primaryRSToRegionCounterMap.keySet().size() != 0) {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> this.avgDispersionScore = dispersionScoreSummary /<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> (float) primaryRSToRegionCounterMap.keySet().size();<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> this.avgDispersionNum = dispersionNumSummary /<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> (float) primaryRSToRegionCounterMap.keySet().size();<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span><a name="line.275"></a> |
| <span class="sourceLineNo">276</span> // Fill up the most loaded and least loaded region server information<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> for (Map.Entry<ServerName, Integer> entry :<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> serverToHostingRegionCounterMap.entrySet()) {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> ServerName currentRS = entry.getKey();<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> int hostRegionCounter = entry.getValue().intValue();<a name="line.280"></a> |
| <span class="sourceLineNo">281</span><a name="line.281"></a> |
| <span class="sourceLineNo">282</span> // Update the most loaded region server list and maxRegionsOnRS<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> if (hostRegionCounter > this.maxRegionsOnRS) {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> maxRegionsOnRS = hostRegionCounter;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> this.mostLoadedRSSet.clear();<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> this.mostLoadedRSSet.add(currentRS);<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> } else if (hostRegionCounter == this.maxRegionsOnRS) {<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> this.mostLoadedRSSet.add(currentRS);<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span><a name="line.290"></a> |
| <span class="sourceLineNo">291</span> // Update the least loaded region server list and minRegionsOnRS<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> if (hostRegionCounter < this.minRegionsOnRS) {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> this.minRegionsOnRS = hostRegionCounter;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> this.leastLoadedRSSet.clear();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> this.leastLoadedRSSet.add(currentRS);<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> } else if (hostRegionCounter == this.minRegionsOnRS) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> this.leastLoadedRSSet.add(currentRS);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span><a name="line.300"></a> |
| <span class="sourceLineNo">301</span> // and total region servers<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> this.totalRegionServers = serverToHostingRegionCounterMap.keySet().size();<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> this.avgRegionsOnRS = (totalRegionServers == 0) ? 0 :<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> (totalRegions / (float) totalRegionServers);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> // Set the isFilledUp as true<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> isFilledUp = true;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<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> * Use this to project the dispersion scores<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * @param tableName<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @param snapshot<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @param newPlan<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> */<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> public void fillUpDispersion(TableName tableName,<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> SnapshotOfRegionAssignmentFromMeta snapshot, FavoredNodesPlan newPlan) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> // Set the table name<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> this.tableName = tableName;<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> // Get all the regions for this table<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> List<RegionInfo> regionInfoList = snapshot.getTableToRegionMap().get(<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> tableName);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> // Get the total region num for the current table<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> this.totalRegions = regionInfoList.size();<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> FavoredNodesPlan plan = null;<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> if (newPlan == null) {<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> plan = snapshot.getExistingAssignmentPlan();<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> } else {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> plan = newPlan;<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> }<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> // Get the region to region server mapping<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> Map<ServerName, Integer> primaryRSToRegionCounterMap = new HashMap<>();<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> Map<ServerName, Set<ServerName>> primaryToSecTerRSMap = new HashMap<>();<a name="line.332"></a> |
| <span class="sourceLineNo">333</span><a name="line.333"></a> |
| <span class="sourceLineNo">334</span> // Check the favored nodes and its locality information<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> // Also keep tracker of the most loaded and least loaded region servers<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> for (RegionInfo region : regionInfoList) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> try {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> // Get the favored nodes from the assignment plan and verify it.<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> List<ServerName> favoredNodes = plan.getFavoredNodes(region);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (favoredNodes == null<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> || favoredNodes.size() != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> regionsWithoutValidFavoredNodes.add(region);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> continue;<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> // Get the primary, secondary and tertiary region server<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> ServerName primaryRS = favoredNodes<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> .get(FavoredNodesPlan.Position.PRIMARY.ordinal());<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> ServerName secondaryRS = favoredNodes<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> .get(FavoredNodesPlan.Position.SECONDARY.ordinal());<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> ServerName tertiaryRS = favoredNodes<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> .get(FavoredNodesPlan.Position.TERTIARY.ordinal());<a name="line.351"></a> |
| <span class="sourceLineNo">352</span><a name="line.352"></a> |
| <span class="sourceLineNo">353</span> // Update the primary rs to its region set map<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> Integer regionCounter = primaryRSToRegionCounterMap.get(primaryRS);<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> if (regionCounter == null) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> regionCounter = Integer.valueOf(0);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> regionCounter = regionCounter.intValue() + 1;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> primaryRSToRegionCounterMap.put(primaryRS, regionCounter);<a name="line.359"></a> |
| <span class="sourceLineNo">360</span><a name="line.360"></a> |
| <span class="sourceLineNo">361</span> // Update the primary rs to secondary and tertiary rs map<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> Set<ServerName> secAndTerSet = primaryToSecTerRSMap.get(primaryRS);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> if (secAndTerSet == null) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> secAndTerSet = new HashSet<>();<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> }<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> secAndTerSet.add(secondaryRS);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> secAndTerSet.add(tertiaryRS);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> primaryToSecTerRSMap.put(primaryRS, secAndTerSet);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> } catch (Exception e) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> LOG.error("Cannot verify the region assignment for region "<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> + ((region == null) ? " null " : region.getRegionNameAsString())<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> + "because of " + e);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> }<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> float dispersionScoreSummary = 0;<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> float dispersionNumSummary = 0;<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> // Calculate the secondary score for each primary region server<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> for (Map.Entry<ServerName, Integer> entry :<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> primaryRSToRegionCounterMap.entrySet()) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> ServerName primaryRS = entry.getKey();<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> Integer regionsOnPrimary = entry.getValue();<a name="line.381"></a> |
| <span class="sourceLineNo">382</span><a name="line.382"></a> |
| <span class="sourceLineNo">383</span> // Process the dispersion number and score<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> float dispersionScore = 0;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> int dispersionNum = 0;<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> if (primaryToSecTerRSMap.get(primaryRS) != null<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> && regionsOnPrimary.intValue() != 0) {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> dispersionNum = primaryToSecTerRSMap.get(primaryRS).size();<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> dispersionScore = dispersionNum /<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> ((float) regionsOnPrimary.intValue() * 2);<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> }<a name="line.391"></a> |
| <span class="sourceLineNo">392</span><a name="line.392"></a> |
| <span class="sourceLineNo">393</span> // Update the max dispersion num<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> if (dispersionNum > this.maxDispersionNum) {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> this.maxDispersionNumServerSet.clear();<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> this.maxDispersionNumServerSet.add(primaryRS);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> this.maxDispersionNum = dispersionNum;<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> } else if (dispersionNum == this.maxDispersionNum) {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> this.maxDispersionNumServerSet.add(primaryRS);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> }<a name="line.400"></a> |
| <span class="sourceLineNo">401</span><a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // Update the min dispersion score<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> if (dispersionScore < this.minDispersionScore) {<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> this.minDispersionScoreServerSet.clear();<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> this.minDispersionScoreServerSet.add(primaryRS);<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> this.minDispersionScore = dispersionScore;<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> } else if (dispersionScore == this.minDispersionScore) {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> this.minDispersionScoreServerSet.add(primaryRS);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> }<a name="line.409"></a> |
| <span class="sourceLineNo">410</span><a name="line.410"></a> |
| <span class="sourceLineNo">411</span> // Update the min dispersion num<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> if (dispersionNum < this.minDispersionNum) {<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> this.minDispersionNumServerSet.clear();<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> this.minDispersionNumServerSet.add(primaryRS);<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> this.minDispersionNum = dispersionNum;<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> } else if (dispersionNum == this.minDispersionNum) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> this.minDispersionNumServerSet.add(primaryRS);<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span><a name="line.419"></a> |
| <span class="sourceLineNo">420</span> dispersionScoreSummary += dispersionScore;<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> dispersionNumSummary += dispersionNum;<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> }<a name="line.422"></a> |
| <span class="sourceLineNo">423</span><a name="line.423"></a> |
| <span class="sourceLineNo">424</span> // Update the avg dispersion score<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> if (primaryRSToRegionCounterMap.keySet().size() != 0) {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> this.avgDispersionScore = dispersionScoreSummary /<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> (float) primaryRSToRegionCounterMap.keySet().size();<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> this.avgDispersionNum = dispersionNumSummary /<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> (float) primaryRSToRegionCounterMap.keySet().size();<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> }<a name="line.431"></a> |
| <span class="sourceLineNo">432</span><a name="line.432"></a> |
| <span class="sourceLineNo">433</span> /**<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> * @return list which contains just 3 elements: average dispersion score, max<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> * dispersion score and min dispersion score as first, second and third element<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> * respectively.<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> *<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> */<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> public List<Float> getDispersionInformation() {<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> List<Float> dispersion = new ArrayList<>();<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> dispersion.add(avgDispersionScore);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> dispersion.add(maxDispersionScore);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> dispersion.add(minDispersionScore);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> return dispersion;<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span><a name="line.446"></a> |
| <span class="sourceLineNo">447</span> public void print(boolean isDetailMode) {<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> if (!isFilledUp) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> System.err.println("[Error] Region assignment verification report" +<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> "hasn't been filled up");<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> }<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> DecimalFormat df = new java.text.DecimalFormat( "#.##");<a name="line.452"></a> |
| <span class="sourceLineNo">453</span><a name="line.453"></a> |
| <span class="sourceLineNo">454</span> // Print some basic information<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> System.out.println("Region Assignment Verification for Table: " + tableName +<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> "\n\tTotal regions : " + totalRegions);<a name="line.456"></a> |
| <span class="sourceLineNo">457</span><a name="line.457"></a> |
| <span class="sourceLineNo">458</span> // Print the number of regions on each kinds of the favored nodes<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> System.out.println("\tTotal regions on favored nodes " +<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> totalFavoredAssignments);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> System.out.println("\t\tTotal regions on "+ p.toString() +<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> " region servers: " + favoredNodes[p.ordinal()]);<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> }<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> // Print the number of regions in each kinds of invalid assignment<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> System.out.println("\tTotal unassigned regions: " +<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> unAssignedRegionsList.size());<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> if (isDetailMode) {<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> for (RegionInfo region : unAssignedRegionsList) {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> System.out.println("\t\t" + region.getRegionNameAsString());<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> }<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span><a name="line.473"></a> |
| <span class="sourceLineNo">474</span> System.out.println("\tTotal regions NOT on favored nodes: " +<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> nonFavoredAssignedRegionList.size());<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> if (isDetailMode) {<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> for (RegionInfo region : nonFavoredAssignedRegionList) {<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> System.out.println("\t\t" + region.getRegionNameAsString());<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> }<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> }<a name="line.480"></a> |
| <span class="sourceLineNo">481</span><a name="line.481"></a> |
| <span class="sourceLineNo">482</span> System.out.println("\tTotal regions without favored nodes: " +<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> regionsWithoutValidFavoredNodes.size());<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> if (isDetailMode) {<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> for (RegionInfo region : regionsWithoutValidFavoredNodes) {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> System.out.println("\t\t" + region.getRegionNameAsString());<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> }<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> }<a name="line.488"></a> |
| <span class="sourceLineNo">489</span><a name="line.489"></a> |
| <span class="sourceLineNo">490</span> // Print the locality information if enabled<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> if (this.enforceLocality && totalRegions != 0) {<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> // Print the actual locality for this table<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> float actualLocality = 100 *<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> this.actualLocalitySummary / (float) totalRegions;<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> System.out.println("\n\tThe actual avg locality is " +<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> df.format(actualLocality) + " %");<a name="line.496"></a> |
| <span class="sourceLineNo">497</span><a name="line.497"></a> |
| <span class="sourceLineNo">498</span> // Print the expected locality if regions are placed on the each kinds of<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> // favored nodes<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> float avgLocality = 100 *<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> (favoredNodesLocalitySummary[p.ordinal()] / (float) totalRegions);<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> System.out.println("\t\tThe expected avg locality if all regions" +<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> " on the " + p.toString() + " region servers: "<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> + df.format(avgLocality) + " %");<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> }<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> }<a name="line.507"></a> |
| <span class="sourceLineNo">508</span><a name="line.508"></a> |
| <span class="sourceLineNo">509</span> // Print the region balancing information<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> System.out.println("\n\tTotal hosting region servers: " +<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> totalRegionServers);<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> // Print the region balance information<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> if (totalRegionServers != 0) {<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> System.out.println(<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> "\tAvg dispersion num: " +df.format(avgDispersionNum) +<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> " hosts;\tMax dispersion num: " + df.format(maxDispersionNum) +<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> " hosts;\tMin dispersion num: " + df.format(minDispersionNum) +<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> " hosts;");<a name="line.518"></a> |
| <span class="sourceLineNo">519</span><a name="line.519"></a> |
| <span class="sourceLineNo">520</span> System.out.println("\t\tThe number of the region servers with the max" +<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> " dispersion num: " + this.maxDispersionNumServerSet.size());<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> if (isDetailMode) {<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> printHServerAddressSet(maxDispersionNumServerSet);<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> }<a name="line.524"></a> |
| <span class="sourceLineNo">525</span><a name="line.525"></a> |
| <span class="sourceLineNo">526</span> System.out.println("\t\tThe number of the region servers with the min" +<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> " dispersion num: " + this.minDispersionNumServerSet.size());<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> if (isDetailMode) {<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> printHServerAddressSet(maxDispersionNumServerSet);<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span><a name="line.531"></a> |
| <span class="sourceLineNo">532</span> System.out.println(<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> "\tAvg dispersion score: " + df.format(avgDispersionScore) +<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> ";\tMax dispersion score: " + df.format(maxDispersionScore) +<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> ";\tMin dispersion score: " + df.format(minDispersionScore) + ";");<a name="line.535"></a> |
| <span class="sourceLineNo">536</span><a name="line.536"></a> |
| <span class="sourceLineNo">537</span> System.out.println("\t\tThe number of the region servers with the max" +<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> " dispersion score: " + this.maxDispersionScoreServerSet.size());<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> if (isDetailMode) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> printHServerAddressSet(maxDispersionScoreServerSet);<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<a name="line.541"></a> |
| <span class="sourceLineNo">542</span><a name="line.542"></a> |
| <span class="sourceLineNo">543</span> System.out.println("\t\tThe number of the region servers with the min" +<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> " dispersion score: " + this.minDispersionScoreServerSet.size());<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> if (isDetailMode) {<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> printHServerAddressSet(minDispersionScoreServerSet);<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> }<a name="line.547"></a> |
| <span class="sourceLineNo">548</span><a name="line.548"></a> |
| <span class="sourceLineNo">549</span> System.out.println(<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> "\tAvg regions/region server: " + df.format(avgRegionsOnRS) +<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> ";\tMax regions/region server: " + maxRegionsOnRS +<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> ";\tMin regions/region server: " + minRegionsOnRS + ";");<a name="line.552"></a> |
| <span class="sourceLineNo">553</span><a name="line.553"></a> |
| <span class="sourceLineNo">554</span> // Print the details about the most loaded region servers<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> System.out.println("\t\tThe number of the most loaded region servers: "<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> + mostLoadedRSSet.size());<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> if (isDetailMode) {<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> printHServerAddressSet(mostLoadedRSSet);<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> }<a name="line.559"></a> |
| <span class="sourceLineNo">560</span><a name="line.560"></a> |
| <span class="sourceLineNo">561</span> // Print the details about the least loaded region servers<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> System.out.println("\t\tThe number of the least loaded region servers: "<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> + leastLoadedRSSet.size());<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> if (isDetailMode) {<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> printHServerAddressSet(leastLoadedRSSet);<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> }<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> }<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> System.out.println("==============================");<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> }<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 the unassigned regions<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> * @return unassigned regions<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> */<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> List<RegionInfo> getUnassignedRegions() {<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> return unAssignedRegionsList;<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> }<a name="line.577"></a> |
| <span class="sourceLineNo">578</span><a name="line.578"></a> |
| <span class="sourceLineNo">579</span> /**<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> * Return the regions without favored nodes<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> * @return regions without favored nodes<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> */<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> List<RegionInfo> getRegionsWithoutValidFavoredNodes() {<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> return regionsWithoutValidFavoredNodes;<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> }<a name="line.585"></a> |
| <span class="sourceLineNo">586</span><a name="line.586"></a> |
| <span class="sourceLineNo">587</span> /**<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> * Return the regions not assigned to its favored nodes<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> * @return regions not assigned to its favored nodes<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> */<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> List<RegionInfo> getNonFavoredAssignedRegions() {<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> return nonFavoredAssignedRegionList;<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> }<a name="line.593"></a> |
| <span class="sourceLineNo">594</span><a name="line.594"></a> |
| <span class="sourceLineNo">595</span> /**<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> * Return the number of regions assigned to their favored nodes<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> * @return number of regions assigned to their favored nodes<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> */<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> int getTotalFavoredAssignments() {<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> return totalFavoredAssignments;<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> }<a name="line.601"></a> |
| <span class="sourceLineNo">602</span><a name="line.602"></a> |
| <span class="sourceLineNo">603</span> /**<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> * Return the number of regions based on the position (primary/secondary/<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> * tertiary) assigned to their favored nodes<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> * @param position<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> * @return the number of regions<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> */<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> int getNumRegionsOnFavoredNodeByPosition(FavoredNodesPlan.Position position) {<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> return favoredNodes[position.ordinal()];<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> }<a name="line.611"></a> |
| <span class="sourceLineNo">612</span><a name="line.612"></a> |
| <span class="sourceLineNo">613</span> private void printHServerAddressSet(Set<ServerName> serverSet) {<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> if (serverSet == null) {<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> return ;<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> }<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> int i = 0;<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> for (ServerName addr : serverSet){<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> if ((i++) % 3 == 0) {<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> System.out.print("\n\t\t\t");<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> }<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> System.out.print(addr.getAddress() + " ; ");<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> }<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> System.out.println("\n");<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> }<a name="line.625"></a> |
| <span class="sourceLineNo">626</span>}<a name="line.626"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
