| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Source code</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="description" content="source: package: org.apache.hadoop.hbase.master, class: AssignmentVerificationReport"> |
| <meta name="generator" content="javadoc/SourceToHTMLConverter"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body class="source-page"> |
| <main role="main"> |
| <div class="source-container"> |
| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.master;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.text.DecimalFormat;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.HashMap;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.HashSet;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Map;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Set;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.favored.FavoredNodesPlan;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.Logger;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">035</span><span id="line-35"></span> |
| <span class="source-line-no">036</span><span id="line-36">/**</span> |
| <span class="source-line-no">037</span><span id="line-37"> * Helper class that is used by RegionPlacementMaintainer to print information for favored nodes</span> |
| <span class="source-line-no">038</span><span id="line-38"> */</span> |
| <span class="source-line-no">039</span><span id="line-39">@InterfaceAudience.Private</span> |
| <span class="source-line-no">040</span><span id="line-40">public class AssignmentVerificationReport {</span> |
| <span class="source-line-no">041</span><span id="line-41"> private static final Logger LOG =</span> |
| <span class="source-line-no">042</span><span id="line-42"> LoggerFactory.getLogger(AssignmentVerificationReport.class.getName());</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> private TableName tableName = null;</span> |
| <span class="source-line-no">045</span><span id="line-45"> private boolean enforceLocality = false;</span> |
| <span class="source-line-no">046</span><span id="line-46"> private boolean isFilledUp = false;</span> |
| <span class="source-line-no">047</span><span id="line-47"></span> |
| <span class="source-line-no">048</span><span id="line-48"> private int totalRegions = 0;</span> |
| <span class="source-line-no">049</span><span id="line-49"> private int totalRegionServers = 0;</span> |
| <span class="source-line-no">050</span><span id="line-50"> // for unassigned regions</span> |
| <span class="source-line-no">051</span><span id="line-51"> private List<RegionInfo> unAssignedRegionsList = new ArrayList<>();</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> // For regions without valid favored nodes</span> |
| <span class="source-line-no">054</span><span id="line-54"> private List<RegionInfo> regionsWithoutValidFavoredNodes = new ArrayList<>();</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> // For regions not running on the favored nodes</span> |
| <span class="source-line-no">057</span><span id="line-57"> private List<RegionInfo> nonFavoredAssignedRegionList = new ArrayList<>();</span> |
| <span class="source-line-no">058</span><span id="line-58"></span> |
| <span class="source-line-no">059</span><span id="line-59"> // For regions running on the favored nodes</span> |
| <span class="source-line-no">060</span><span id="line-60"> private int totalFavoredAssignments = 0;</span> |
| <span class="source-line-no">061</span><span id="line-61"> private int[] favoredNodes = new int[FavoredNodeAssignmentHelper.FAVORED_NODES_NUM];</span> |
| <span class="source-line-no">062</span><span id="line-62"> private float[] favoredNodesLocalitySummary =</span> |
| <span class="source-line-no">063</span><span id="line-63"> new float[FavoredNodeAssignmentHelper.FAVORED_NODES_NUM];</span> |
| <span class="source-line-no">064</span><span id="line-64"> private float actualLocalitySummary = 0;</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> // For region balancing information</span> |
| <span class="source-line-no">067</span><span id="line-67"> private float avgRegionsOnRS = 0;</span> |
| <span class="source-line-no">068</span><span id="line-68"> private int maxRegionsOnRS = 0;</span> |
| <span class="source-line-no">069</span><span id="line-69"> private int minRegionsOnRS = Integer.MAX_VALUE;</span> |
| <span class="source-line-no">070</span><span id="line-70"> private Set<ServerName> mostLoadedRSSet = new HashSet<>();</span> |
| <span class="source-line-no">071</span><span id="line-71"> private Set<ServerName> leastLoadedRSSet = new HashSet<>();</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73"> private float avgDispersionScore = 0;</span> |
| <span class="source-line-no">074</span><span id="line-74"> private float maxDispersionScore = 0;</span> |
| <span class="source-line-no">075</span><span id="line-75"> private Set<ServerName> maxDispersionScoreServerSet = new HashSet<>();</span> |
| <span class="source-line-no">076</span><span id="line-76"> private float minDispersionScore = Float.MAX_VALUE;</span> |
| <span class="source-line-no">077</span><span id="line-77"> private Set<ServerName> minDispersionScoreServerSet = new HashSet<>();</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> private float avgDispersionNum = 0;</span> |
| <span class="source-line-no">080</span><span id="line-80"> private float maxDispersionNum = 0;</span> |
| <span class="source-line-no">081</span><span id="line-81"> private Set<ServerName> maxDispersionNumServerSet = new HashSet<>();</span> |
| <span class="source-line-no">082</span><span id="line-82"> private float minDispersionNum = Float.MAX_VALUE;</span> |
| <span class="source-line-no">083</span><span id="line-83"> private Set<ServerName> minDispersionNumServerSet = new HashSet<>();</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> public void fillUp(TableName tableName, SnapshotOfRegionAssignmentFromMeta snapshot,</span> |
| <span class="source-line-no">086</span><span id="line-86"> Map<String, Map<String, Float>> regionLocalityMap) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> // Set the table name</span> |
| <span class="source-line-no">088</span><span id="line-88"> this.tableName = tableName;</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> // Get all the regions for this table</span> |
| <span class="source-line-no">091</span><span id="line-91"> List<RegionInfo> regionInfoList = snapshot.getTableToRegionMap().get(tableName);</span> |
| <span class="source-line-no">092</span><span id="line-92"> // Get the total region num for the current table</span> |
| <span class="source-line-no">093</span><span id="line-93"> this.totalRegions = regionInfoList.size();</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> // Get the existing assignment plan</span> |
| <span class="source-line-no">096</span><span id="line-96"> FavoredNodesPlan favoredNodesAssignment = snapshot.getExistingAssignmentPlan();</span> |
| <span class="source-line-no">097</span><span id="line-97"> // Get the region to region server mapping</span> |
| <span class="source-line-no">098</span><span id="line-98"> Map<RegionInfo, ServerName> currentAssignment = snapshot.getRegionToRegionServerMap();</span> |
| <span class="source-line-no">099</span><span id="line-99"> // Initialize the server to its hosing region counter map</span> |
| <span class="source-line-no">100</span><span id="line-100"> Map<ServerName, Integer> serverToHostingRegionCounterMap = new HashMap<>();</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> Map<ServerName, Integer> primaryRSToRegionCounterMap = new HashMap<>();</span> |
| <span class="source-line-no">103</span><span id="line-103"> Map<ServerName, Set<ServerName>> primaryToSecTerRSMap = new HashMap<>();</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> // Check the favored nodes and its locality information</span> |
| <span class="source-line-no">106</span><span id="line-106"> // Also keep tracker of the most loaded and least loaded region servers</span> |
| <span class="source-line-no">107</span><span id="line-107"> for (RegionInfo region : regionInfoList) {</span> |
| <span class="source-line-no">108</span><span id="line-108"> try {</span> |
| <span class="source-line-no">109</span><span id="line-109"> ServerName currentRS = currentAssignment.get(region);</span> |
| <span class="source-line-no">110</span><span id="line-110"> // Handle unassigned regions</span> |
| <span class="source-line-no">111</span><span id="line-111"> if (currentRS == null) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> unAssignedRegionsList.add(region);</span> |
| <span class="source-line-no">113</span><span id="line-113"> continue;</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> // Keep updating the server to is hosting region counter map</span> |
| <span class="source-line-no">117</span><span id="line-117"> Integer hostRegionCounter = serverToHostingRegionCounterMap.get(currentRS);</span> |
| <span class="source-line-no">118</span><span id="line-118"> if (hostRegionCounter == null) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> hostRegionCounter = Integer.valueOf(0);</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"> hostRegionCounter = hostRegionCounter.intValue() + 1;</span> |
| <span class="source-line-no">122</span><span id="line-122"> serverToHostingRegionCounterMap.put(currentRS, hostRegionCounter);</span> |
| <span class="source-line-no">123</span><span id="line-123"></span> |
| <span class="source-line-no">124</span><span id="line-124"> // Get the favored nodes from the assignment plan and verify it.</span> |
| <span class="source-line-no">125</span><span id="line-125"> List<ServerName> favoredNodes = favoredNodesAssignment.getFavoredNodes(region);</span> |
| <span class="source-line-no">126</span><span id="line-126"> if (</span> |
| <span class="source-line-no">127</span><span id="line-127"> favoredNodes == null</span> |
| <span class="source-line-no">128</span><span id="line-128"> || favoredNodes.size() != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM</span> |
| <span class="source-line-no">129</span><span id="line-129"> ) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> regionsWithoutValidFavoredNodes.add(region);</span> |
| <span class="source-line-no">131</span><span id="line-131"> continue;</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"> // Get the primary, secondary and tertiary region server</span> |
| <span class="source-line-no">134</span><span id="line-134"> ServerName primaryRS = favoredNodes.get(FavoredNodesPlan.Position.PRIMARY.ordinal());</span> |
| <span class="source-line-no">135</span><span id="line-135"> ServerName secondaryRS = favoredNodes.get(FavoredNodesPlan.Position.SECONDARY.ordinal());</span> |
| <span class="source-line-no">136</span><span id="line-136"> ServerName tertiaryRS = favoredNodes.get(FavoredNodesPlan.Position.TERTIARY.ordinal());</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> // Update the primary rs to its region set map</span> |
| <span class="source-line-no">139</span><span id="line-139"> Integer regionCounter = primaryRSToRegionCounterMap.get(primaryRS);</span> |
| <span class="source-line-no">140</span><span id="line-140"> if (regionCounter == null) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> regionCounter = Integer.valueOf(0);</span> |
| <span class="source-line-no">142</span><span id="line-142"> }</span> |
| <span class="source-line-no">143</span><span id="line-143"> regionCounter = regionCounter.intValue() + 1;</span> |
| <span class="source-line-no">144</span><span id="line-144"> primaryRSToRegionCounterMap.put(primaryRS, regionCounter);</span> |
| <span class="source-line-no">145</span><span id="line-145"></span> |
| <span class="source-line-no">146</span><span id="line-146"> // Update the primary rs to secondary and tertiary rs map</span> |
| <span class="source-line-no">147</span><span id="line-147"> Set<ServerName> secAndTerSet = primaryToSecTerRSMap.get(primaryRS);</span> |
| <span class="source-line-no">148</span><span id="line-148"> if (secAndTerSet == null) {</span> |
| <span class="source-line-no">149</span><span id="line-149"> secAndTerSet = new HashSet<>();</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"> secAndTerSet.add(secondaryRS);</span> |
| <span class="source-line-no">152</span><span id="line-152"> secAndTerSet.add(tertiaryRS);</span> |
| <span class="source-line-no">153</span><span id="line-153"> primaryToSecTerRSMap.put(primaryRS, secAndTerSet);</span> |
| <span class="source-line-no">154</span><span id="line-154"></span> |
| <span class="source-line-no">155</span><span id="line-155"> // Get the position of the current region server in the favored nodes list</span> |
| <span class="source-line-no">156</span><span id="line-156"> FavoredNodesPlan.Position favoredNodePosition =</span> |
| <span class="source-line-no">157</span><span id="line-157"> FavoredNodesPlan.getFavoredServerPosition(favoredNodes, currentRS);</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> // Handle the non favored assignment.</span> |
| <span class="source-line-no">160</span><span id="line-160"> if (favoredNodePosition == null) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> nonFavoredAssignedRegionList.add(region);</span> |
| <span class="source-line-no">162</span><span id="line-162"> continue;</span> |
| <span class="source-line-no">163</span><span id="line-163"> }</span> |
| <span class="source-line-no">164</span><span id="line-164"> // Increase the favored nodes assignment.</span> |
| <span class="source-line-no">165</span><span id="line-165"> this.favoredNodes[favoredNodePosition.ordinal()]++;</span> |
| <span class="source-line-no">166</span><span id="line-166"> totalFavoredAssignments++;</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> // Summary the locality information for each favored nodes</span> |
| <span class="source-line-no">169</span><span id="line-169"> if (regionLocalityMap != null) {</span> |
| <span class="source-line-no">170</span><span id="line-170"> // Set the enforce locality as true;</span> |
| <span class="source-line-no">171</span><span id="line-171"> this.enforceLocality = true;</span> |
| <span class="source-line-no">172</span><span id="line-172"></span> |
| <span class="source-line-no">173</span><span id="line-173"> // Get the region degree locality map</span> |
| <span class="source-line-no">174</span><span id="line-174"> Map<String, Float> regionDegreeLocalityMap =</span> |
| <span class="source-line-no">175</span><span id="line-175"> regionLocalityMap.get(region.getEncodedName());</span> |
| <span class="source-line-no">176</span><span id="line-176"> if (regionDegreeLocalityMap == null) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> continue; // ignore the region which doesn't have any store files.</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> // Get the locality summary for each favored nodes</span> |
| <span class="source-line-no">181</span><span id="line-181"> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> ServerName favoredNode = favoredNodes.get(p.ordinal());</span> |
| <span class="source-line-no">183</span><span id="line-183"> // Get the locality for the current favored nodes</span> |
| <span class="source-line-no">184</span><span id="line-184"> Float locality = regionDegreeLocalityMap.get(favoredNode.getHostname());</span> |
| <span class="source-line-no">185</span><span id="line-185"> if (locality != null) {</span> |
| <span class="source-line-no">186</span><span id="line-186"> this.favoredNodesLocalitySummary[p.ordinal()] += locality;</span> |
| <span class="source-line-no">187</span><span id="line-187"> }</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"></span> |
| <span class="source-line-no">190</span><span id="line-190"> // Get the locality summary for the current region server</span> |
| <span class="source-line-no">191</span><span id="line-191"> Float actualLocality = regionDegreeLocalityMap.get(currentRS.getHostname());</span> |
| <span class="source-line-no">192</span><span id="line-192"> if (actualLocality != null) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> this.actualLocalitySummary += actualLocality;</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"> } catch (Exception e) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> LOG.error("Cannot verify the region assignment for region "</span> |
| <span class="source-line-no">198</span><span id="line-198"> + ((region == null) ? " null " : region.getRegionNameAsString()) + "because of " + e);</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200"> }</span> |
| <span class="source-line-no">201</span><span id="line-201"></span> |
| <span class="source-line-no">202</span><span id="line-202"> float dispersionScoreSummary = 0;</span> |
| <span class="source-line-no">203</span><span id="line-203"> float dispersionNumSummary = 0;</span> |
| <span class="source-line-no">204</span><span id="line-204"> // Calculate the secondary score for each primary region server</span> |
| <span class="source-line-no">205</span><span id="line-205"> for (Map.Entry<ServerName, Integer> entry : primaryRSToRegionCounterMap.entrySet()) {</span> |
| <span class="source-line-no">206</span><span id="line-206"> ServerName primaryRS = entry.getKey();</span> |
| <span class="source-line-no">207</span><span id="line-207"> Integer regionsOnPrimary = entry.getValue();</span> |
| <span class="source-line-no">208</span><span id="line-208"></span> |
| <span class="source-line-no">209</span><span id="line-209"> // Process the dispersion number and score</span> |
| <span class="source-line-no">210</span><span id="line-210"> float dispersionScore = 0;</span> |
| <span class="source-line-no">211</span><span id="line-211"> int dispersionNum = 0;</span> |
| <span class="source-line-no">212</span><span id="line-212"> if (primaryToSecTerRSMap.get(primaryRS) != null && regionsOnPrimary.intValue() != 0) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> dispersionNum = primaryToSecTerRSMap.get(primaryRS).size();</span> |
| <span class="source-line-no">214</span><span id="line-214"> dispersionScore = dispersionNum / ((float) regionsOnPrimary.intValue() * 2);</span> |
| <span class="source-line-no">215</span><span id="line-215"> }</span> |
| <span class="source-line-no">216</span><span id="line-216"> // Update the max dispersion score</span> |
| <span class="source-line-no">217</span><span id="line-217"> if (dispersionScore > this.maxDispersionScore) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> this.maxDispersionScoreServerSet.clear();</span> |
| <span class="source-line-no">219</span><span id="line-219"> this.maxDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">220</span><span id="line-220"> this.maxDispersionScore = dispersionScore;</span> |
| <span class="source-line-no">221</span><span id="line-221"> } else if (dispersionScore == this.maxDispersionScore) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> this.maxDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225"> // Update the max dispersion num</span> |
| <span class="source-line-no">226</span><span id="line-226"> if (dispersionNum > this.maxDispersionNum) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> this.maxDispersionNumServerSet.clear();</span> |
| <span class="source-line-no">228</span><span id="line-228"> this.maxDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">229</span><span id="line-229"> this.maxDispersionNum = dispersionNum;</span> |
| <span class="source-line-no">230</span><span id="line-230"> } else if (dispersionNum == this.maxDispersionNum) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> this.maxDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> // Update the min dispersion score</span> |
| <span class="source-line-no">235</span><span id="line-235"> if (dispersionScore < this.minDispersionScore) {</span> |
| <span class="source-line-no">236</span><span id="line-236"> this.minDispersionScoreServerSet.clear();</span> |
| <span class="source-line-no">237</span><span id="line-237"> this.minDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">238</span><span id="line-238"> this.minDispersionScore = dispersionScore;</span> |
| <span class="source-line-no">239</span><span id="line-239"> } else if (dispersionScore == this.minDispersionScore) {</span> |
| <span class="source-line-no">240</span><span id="line-240"> this.minDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"></span> |
| <span class="source-line-no">243</span><span id="line-243"> // Update the min dispersion num</span> |
| <span class="source-line-no">244</span><span id="line-244"> if (dispersionNum < this.minDispersionNum) {</span> |
| <span class="source-line-no">245</span><span id="line-245"> this.minDispersionNumServerSet.clear();</span> |
| <span class="source-line-no">246</span><span id="line-246"> this.minDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">247</span><span id="line-247"> this.minDispersionNum = dispersionNum;</span> |
| <span class="source-line-no">248</span><span id="line-248"> } else if (dispersionNum == this.minDispersionNum) {</span> |
| <span class="source-line-no">249</span><span id="line-249"> this.minDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">250</span><span id="line-250"> }</span> |
| <span class="source-line-no">251</span><span id="line-251"></span> |
| <span class="source-line-no">252</span><span id="line-252"> dispersionScoreSummary += dispersionScore;</span> |
| <span class="source-line-no">253</span><span id="line-253"> dispersionNumSummary += dispersionNum;</span> |
| <span class="source-line-no">254</span><span id="line-254"> }</span> |
| <span class="source-line-no">255</span><span id="line-255"></span> |
| <span class="source-line-no">256</span><span id="line-256"> // Update the avg dispersion score</span> |
| <span class="source-line-no">257</span><span id="line-257"> if (primaryRSToRegionCounterMap.keySet().size() != 0) {</span> |
| <span class="source-line-no">258</span><span id="line-258"> this.avgDispersionScore =</span> |
| <span class="source-line-no">259</span><span id="line-259"> dispersionScoreSummary / (float) primaryRSToRegionCounterMap.keySet().size();</span> |
| <span class="source-line-no">260</span><span id="line-260"> this.avgDispersionNum =</span> |
| <span class="source-line-no">261</span><span id="line-261"> dispersionNumSummary / (float) primaryRSToRegionCounterMap.keySet().size();</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"></span> |
| <span class="source-line-no">264</span><span id="line-264"> // Fill up the most loaded and least loaded region server information</span> |
| <span class="source-line-no">265</span><span id="line-265"> for (Map.Entry<ServerName, Integer> entry : serverToHostingRegionCounterMap.entrySet()) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> ServerName currentRS = entry.getKey();</span> |
| <span class="source-line-no">267</span><span id="line-267"> int hostRegionCounter = entry.getValue().intValue();</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> // Update the most loaded region server list and maxRegionsOnRS</span> |
| <span class="source-line-no">270</span><span id="line-270"> if (hostRegionCounter > this.maxRegionsOnRS) {</span> |
| <span class="source-line-no">271</span><span id="line-271"> maxRegionsOnRS = hostRegionCounter;</span> |
| <span class="source-line-no">272</span><span id="line-272"> this.mostLoadedRSSet.clear();</span> |
| <span class="source-line-no">273</span><span id="line-273"> this.mostLoadedRSSet.add(currentRS);</span> |
| <span class="source-line-no">274</span><span id="line-274"> } else if (hostRegionCounter == this.maxRegionsOnRS) {</span> |
| <span class="source-line-no">275</span><span id="line-275"> this.mostLoadedRSSet.add(currentRS);</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"></span> |
| <span class="source-line-no">278</span><span id="line-278"> // Update the least loaded region server list and minRegionsOnRS</span> |
| <span class="source-line-no">279</span><span id="line-279"> if (hostRegionCounter < this.minRegionsOnRS) {</span> |
| <span class="source-line-no">280</span><span id="line-280"> this.minRegionsOnRS = hostRegionCounter;</span> |
| <span class="source-line-no">281</span><span id="line-281"> this.leastLoadedRSSet.clear();</span> |
| <span class="source-line-no">282</span><span id="line-282"> this.leastLoadedRSSet.add(currentRS);</span> |
| <span class="source-line-no">283</span><span id="line-283"> } else if (hostRegionCounter == this.minRegionsOnRS) {</span> |
| <span class="source-line-no">284</span><span id="line-284"> this.leastLoadedRSSet.add(currentRS);</span> |
| <span class="source-line-no">285</span><span id="line-285"> }</span> |
| <span class="source-line-no">286</span><span id="line-286"> }</span> |
| <span class="source-line-no">287</span><span id="line-287"></span> |
| <span class="source-line-no">288</span><span id="line-288"> // and total region servers</span> |
| <span class="source-line-no">289</span><span id="line-289"> this.totalRegionServers = serverToHostingRegionCounterMap.keySet().size();</span> |
| <span class="source-line-no">290</span><span id="line-290"> this.avgRegionsOnRS =</span> |
| <span class="source-line-no">291</span><span id="line-291"> (totalRegionServers == 0) ? 0 : (totalRegions / (float) totalRegionServers);</span> |
| <span class="source-line-no">292</span><span id="line-292"> // Set the isFilledUp as true</span> |
| <span class="source-line-no">293</span><span id="line-293"> isFilledUp = true;</span> |
| <span class="source-line-no">294</span><span id="line-294"> }</span> |
| <span class="source-line-no">295</span><span id="line-295"></span> |
| <span class="source-line-no">296</span><span id="line-296"> /**</span> |
| <span class="source-line-no">297</span><span id="line-297"> * Use this to project the dispersion scores</span> |
| <span class="source-line-no">298</span><span id="line-298"> */</span> |
| <span class="source-line-no">299</span><span id="line-299"> public void fillUpDispersion(TableName tableName, SnapshotOfRegionAssignmentFromMeta snapshot,</span> |
| <span class="source-line-no">300</span><span id="line-300"> FavoredNodesPlan newPlan) {</span> |
| <span class="source-line-no">301</span><span id="line-301"> // Set the table name</span> |
| <span class="source-line-no">302</span><span id="line-302"> this.tableName = tableName;</span> |
| <span class="source-line-no">303</span><span id="line-303"> // Get all the regions for this table</span> |
| <span class="source-line-no">304</span><span id="line-304"> List<RegionInfo> regionInfoList = snapshot.getTableToRegionMap().get(tableName);</span> |
| <span class="source-line-no">305</span><span id="line-305"> // Get the total region num for the current table</span> |
| <span class="source-line-no">306</span><span id="line-306"> this.totalRegions = regionInfoList.size();</span> |
| <span class="source-line-no">307</span><span id="line-307"> FavoredNodesPlan plan = null;</span> |
| <span class="source-line-no">308</span><span id="line-308"> if (newPlan == null) {</span> |
| <span class="source-line-no">309</span><span id="line-309"> plan = snapshot.getExistingAssignmentPlan();</span> |
| <span class="source-line-no">310</span><span id="line-310"> } else {</span> |
| <span class="source-line-no">311</span><span id="line-311"> plan = newPlan;</span> |
| <span class="source-line-no">312</span><span id="line-312"> }</span> |
| <span class="source-line-no">313</span><span id="line-313"> // Get the region to region server mapping</span> |
| <span class="source-line-no">314</span><span id="line-314"> Map<ServerName, Integer> primaryRSToRegionCounterMap = new HashMap<>();</span> |
| <span class="source-line-no">315</span><span id="line-315"> Map<ServerName, Set<ServerName>> primaryToSecTerRSMap = new HashMap<>();</span> |
| <span class="source-line-no">316</span><span id="line-316"></span> |
| <span class="source-line-no">317</span><span id="line-317"> // Check the favored nodes and its locality information</span> |
| <span class="source-line-no">318</span><span id="line-318"> // Also keep tracker of the most loaded and least loaded region servers</span> |
| <span class="source-line-no">319</span><span id="line-319"> for (RegionInfo region : regionInfoList) {</span> |
| <span class="source-line-no">320</span><span id="line-320"> try {</span> |
| <span class="source-line-no">321</span><span id="line-321"> // Get the favored nodes from the assignment plan and verify it.</span> |
| <span class="source-line-no">322</span><span id="line-322"> List<ServerName> favoredNodes = plan.getFavoredNodes(region);</span> |
| <span class="source-line-no">323</span><span id="line-323"> if (</span> |
| <span class="source-line-no">324</span><span id="line-324"> favoredNodes == null</span> |
| <span class="source-line-no">325</span><span id="line-325"> || favoredNodes.size() != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM</span> |
| <span class="source-line-no">326</span><span id="line-326"> ) {</span> |
| <span class="source-line-no">327</span><span id="line-327"> regionsWithoutValidFavoredNodes.add(region);</span> |
| <span class="source-line-no">328</span><span id="line-328"> continue;</span> |
| <span class="source-line-no">329</span><span id="line-329"> }</span> |
| <span class="source-line-no">330</span><span id="line-330"> // Get the primary, secondary and tertiary region server</span> |
| <span class="source-line-no">331</span><span id="line-331"> ServerName primaryRS = favoredNodes.get(FavoredNodesPlan.Position.PRIMARY.ordinal());</span> |
| <span class="source-line-no">332</span><span id="line-332"> ServerName secondaryRS = favoredNodes.get(FavoredNodesPlan.Position.SECONDARY.ordinal());</span> |
| <span class="source-line-no">333</span><span id="line-333"> ServerName tertiaryRS = favoredNodes.get(FavoredNodesPlan.Position.TERTIARY.ordinal());</span> |
| <span class="source-line-no">334</span><span id="line-334"></span> |
| <span class="source-line-no">335</span><span id="line-335"> // Update the primary rs to its region set map</span> |
| <span class="source-line-no">336</span><span id="line-336"> Integer regionCounter = primaryRSToRegionCounterMap.get(primaryRS);</span> |
| <span class="source-line-no">337</span><span id="line-337"> if (regionCounter == null) {</span> |
| <span class="source-line-no">338</span><span id="line-338"> regionCounter = Integer.valueOf(0);</span> |
| <span class="source-line-no">339</span><span id="line-339"> }</span> |
| <span class="source-line-no">340</span><span id="line-340"> regionCounter = regionCounter.intValue() + 1;</span> |
| <span class="source-line-no">341</span><span id="line-341"> primaryRSToRegionCounterMap.put(primaryRS, regionCounter);</span> |
| <span class="source-line-no">342</span><span id="line-342"></span> |
| <span class="source-line-no">343</span><span id="line-343"> // Update the primary rs to secondary and tertiary rs map</span> |
| <span class="source-line-no">344</span><span id="line-344"> Set<ServerName> secAndTerSet = primaryToSecTerRSMap.get(primaryRS);</span> |
| <span class="source-line-no">345</span><span id="line-345"> if (secAndTerSet == null) {</span> |
| <span class="source-line-no">346</span><span id="line-346"> secAndTerSet = new HashSet<>();</span> |
| <span class="source-line-no">347</span><span id="line-347"> }</span> |
| <span class="source-line-no">348</span><span id="line-348"> secAndTerSet.add(secondaryRS);</span> |
| <span class="source-line-no">349</span><span id="line-349"> secAndTerSet.add(tertiaryRS);</span> |
| <span class="source-line-no">350</span><span id="line-350"> primaryToSecTerRSMap.put(primaryRS, secAndTerSet);</span> |
| <span class="source-line-no">351</span><span id="line-351"> } catch (Exception e) {</span> |
| <span class="source-line-no">352</span><span id="line-352"> LOG.error("Cannot verify the region assignment for region "</span> |
| <span class="source-line-no">353</span><span id="line-353"> + ((region == null) ? " null " : region.getRegionNameAsString()) + "because of " + e);</span> |
| <span class="source-line-no">354</span><span id="line-354"> }</span> |
| <span class="source-line-no">355</span><span id="line-355"> }</span> |
| <span class="source-line-no">356</span><span id="line-356"> float dispersionScoreSummary = 0;</span> |
| <span class="source-line-no">357</span><span id="line-357"> float dispersionNumSummary = 0;</span> |
| <span class="source-line-no">358</span><span id="line-358"> // Calculate the secondary score for each primary region server</span> |
| <span class="source-line-no">359</span><span id="line-359"> for (Map.Entry<ServerName, Integer> entry : primaryRSToRegionCounterMap.entrySet()) {</span> |
| <span class="source-line-no">360</span><span id="line-360"> ServerName primaryRS = entry.getKey();</span> |
| <span class="source-line-no">361</span><span id="line-361"> Integer regionsOnPrimary = entry.getValue();</span> |
| <span class="source-line-no">362</span><span id="line-362"></span> |
| <span class="source-line-no">363</span><span id="line-363"> // Process the dispersion number and score</span> |
| <span class="source-line-no">364</span><span id="line-364"> float dispersionScore = 0;</span> |
| <span class="source-line-no">365</span><span id="line-365"> int dispersionNum = 0;</span> |
| <span class="source-line-no">366</span><span id="line-366"> if (primaryToSecTerRSMap.get(primaryRS) != null && regionsOnPrimary.intValue() != 0) {</span> |
| <span class="source-line-no">367</span><span id="line-367"> dispersionNum = primaryToSecTerRSMap.get(primaryRS).size();</span> |
| <span class="source-line-no">368</span><span id="line-368"> dispersionScore = dispersionNum / ((float) regionsOnPrimary.intValue() * 2);</span> |
| <span class="source-line-no">369</span><span id="line-369"> }</span> |
| <span class="source-line-no">370</span><span id="line-370"></span> |
| <span class="source-line-no">371</span><span id="line-371"> // Update the max dispersion num</span> |
| <span class="source-line-no">372</span><span id="line-372"> if (dispersionNum > this.maxDispersionNum) {</span> |
| <span class="source-line-no">373</span><span id="line-373"> this.maxDispersionNumServerSet.clear();</span> |
| <span class="source-line-no">374</span><span id="line-374"> this.maxDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">375</span><span id="line-375"> this.maxDispersionNum = dispersionNum;</span> |
| <span class="source-line-no">376</span><span id="line-376"> } else if (dispersionNum == this.maxDispersionNum) {</span> |
| <span class="source-line-no">377</span><span id="line-377"> this.maxDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"></span> |
| <span class="source-line-no">380</span><span id="line-380"> // Update the min dispersion score</span> |
| <span class="source-line-no">381</span><span id="line-381"> if (dispersionScore < this.minDispersionScore) {</span> |
| <span class="source-line-no">382</span><span id="line-382"> this.minDispersionScoreServerSet.clear();</span> |
| <span class="source-line-no">383</span><span id="line-383"> this.minDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">384</span><span id="line-384"> this.minDispersionScore = dispersionScore;</span> |
| <span class="source-line-no">385</span><span id="line-385"> } else if (dispersionScore == this.minDispersionScore) {</span> |
| <span class="source-line-no">386</span><span id="line-386"> this.minDispersionScoreServerSet.add(primaryRS);</span> |
| <span class="source-line-no">387</span><span id="line-387"> }</span> |
| <span class="source-line-no">388</span><span id="line-388"></span> |
| <span class="source-line-no">389</span><span id="line-389"> // Update the min dispersion num</span> |
| <span class="source-line-no">390</span><span id="line-390"> if (dispersionNum < this.minDispersionNum) {</span> |
| <span class="source-line-no">391</span><span id="line-391"> this.minDispersionNumServerSet.clear();</span> |
| <span class="source-line-no">392</span><span id="line-392"> this.minDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">393</span><span id="line-393"> this.minDispersionNum = dispersionNum;</span> |
| <span class="source-line-no">394</span><span id="line-394"> } else if (dispersionNum == this.minDispersionNum) {</span> |
| <span class="source-line-no">395</span><span id="line-395"> this.minDispersionNumServerSet.add(primaryRS);</span> |
| <span class="source-line-no">396</span><span id="line-396"> }</span> |
| <span class="source-line-no">397</span><span id="line-397"></span> |
| <span class="source-line-no">398</span><span id="line-398"> dispersionScoreSummary += dispersionScore;</span> |
| <span class="source-line-no">399</span><span id="line-399"> dispersionNumSummary += dispersionNum;</span> |
| <span class="source-line-no">400</span><span id="line-400"> }</span> |
| <span class="source-line-no">401</span><span id="line-401"></span> |
| <span class="source-line-no">402</span><span id="line-402"> // Update the avg dispersion score</span> |
| <span class="source-line-no">403</span><span id="line-403"> if (primaryRSToRegionCounterMap.keySet().size() != 0) {</span> |
| <span class="source-line-no">404</span><span id="line-404"> this.avgDispersionScore =</span> |
| <span class="source-line-no">405</span><span id="line-405"> dispersionScoreSummary / (float) primaryRSToRegionCounterMap.keySet().size();</span> |
| <span class="source-line-no">406</span><span id="line-406"> this.avgDispersionNum =</span> |
| <span class="source-line-no">407</span><span id="line-407"> dispersionNumSummary / (float) primaryRSToRegionCounterMap.keySet().size();</span> |
| <span class="source-line-no">408</span><span id="line-408"> }</span> |
| <span class="source-line-no">409</span><span id="line-409"> }</span> |
| <span class="source-line-no">410</span><span id="line-410"></span> |
| <span class="source-line-no">411</span><span id="line-411"> /**</span> |
| <span class="source-line-no">412</span><span id="line-412"> * Return a list which contains 3 elements: average dispersion score, max dispersion score and min</span> |
| <span class="source-line-no">413</span><span id="line-413"> * dispersion score as first, second and third elements, respectively.</span> |
| <span class="source-line-no">414</span><span id="line-414"> */</span> |
| <span class="source-line-no">415</span><span id="line-415"> public List<Float> getDispersionInformation() {</span> |
| <span class="source-line-no">416</span><span id="line-416"> List<Float> dispersion = new ArrayList<>();</span> |
| <span class="source-line-no">417</span><span id="line-417"> dispersion.add(avgDispersionScore);</span> |
| <span class="source-line-no">418</span><span id="line-418"> dispersion.add(maxDispersionScore);</span> |
| <span class="source-line-no">419</span><span id="line-419"> dispersion.add(minDispersionScore);</span> |
| <span class="source-line-no">420</span><span id="line-420"> return dispersion;</span> |
| <span class="source-line-no">421</span><span id="line-421"> }</span> |
| <span class="source-line-no">422</span><span id="line-422"></span> |
| <span class="source-line-no">423</span><span id="line-423"> public void print(boolean isDetailMode) {</span> |
| <span class="source-line-no">424</span><span id="line-424"> if (!isFilledUp) {</span> |
| <span class="source-line-no">425</span><span id="line-425"> System.err.println("[Error] Region assignment verification report" + "hasn't been filled up");</span> |
| <span class="source-line-no">426</span><span id="line-426"> }</span> |
| <span class="source-line-no">427</span><span id="line-427"> DecimalFormat df = new java.text.DecimalFormat("#.##");</span> |
| <span class="source-line-no">428</span><span id="line-428"></span> |
| <span class="source-line-no">429</span><span id="line-429"> // Print some basic information</span> |
| <span class="source-line-no">430</span><span id="line-430"> System.out.println("Region Assignment Verification for Table: " + tableName</span> |
| <span class="source-line-no">431</span><span id="line-431"> + "\n\tTotal regions : " + totalRegions);</span> |
| <span class="source-line-no">432</span><span id="line-432"></span> |
| <span class="source-line-no">433</span><span id="line-433"> // Print the number of regions on each kinds of the favored nodes</span> |
| <span class="source-line-no">434</span><span id="line-434"> System.out.println("\tTotal regions on favored nodes " + totalFavoredAssignments);</span> |
| <span class="source-line-no">435</span><span id="line-435"> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {</span> |
| <span class="source-line-no">436</span><span id="line-436"> System.out.println(</span> |
| <span class="source-line-no">437</span><span id="line-437"> "\t\tTotal regions on " + p.toString() + " region servers: " + favoredNodes[p.ordinal()]);</span> |
| <span class="source-line-no">438</span><span id="line-438"> }</span> |
| <span class="source-line-no">439</span><span id="line-439"> // Print the number of regions in each kinds of invalid assignment</span> |
| <span class="source-line-no">440</span><span id="line-440"> System.out.println("\tTotal unassigned regions: " + unAssignedRegionsList.size());</span> |
| <span class="source-line-no">441</span><span id="line-441"> if (isDetailMode) {</span> |
| <span class="source-line-no">442</span><span id="line-442"> for (RegionInfo region : unAssignedRegionsList) {</span> |
| <span class="source-line-no">443</span><span id="line-443"> System.out.println("\t\t" + region.getRegionNameAsString());</span> |
| <span class="source-line-no">444</span><span id="line-444"> }</span> |
| <span class="source-line-no">445</span><span id="line-445"> }</span> |
| <span class="source-line-no">446</span><span id="line-446"></span> |
| <span class="source-line-no">447</span><span id="line-447"> System.out</span> |
| <span class="source-line-no">448</span><span id="line-448"> .println("\tTotal regions NOT on favored nodes: " + nonFavoredAssignedRegionList.size());</span> |
| <span class="source-line-no">449</span><span id="line-449"> if (isDetailMode) {</span> |
| <span class="source-line-no">450</span><span id="line-450"> for (RegionInfo region : nonFavoredAssignedRegionList) {</span> |
| <span class="source-line-no">451</span><span id="line-451"> System.out.println("\t\t" + region.getRegionNameAsString());</span> |
| <span class="source-line-no">452</span><span id="line-452"> }</span> |
| <span class="source-line-no">453</span><span id="line-453"> }</span> |
| <span class="source-line-no">454</span><span id="line-454"></span> |
| <span class="source-line-no">455</span><span id="line-455"> System.out</span> |
| <span class="source-line-no">456</span><span id="line-456"> .println("\tTotal regions without favored nodes: " + regionsWithoutValidFavoredNodes.size());</span> |
| <span class="source-line-no">457</span><span id="line-457"> if (isDetailMode) {</span> |
| <span class="source-line-no">458</span><span id="line-458"> for (RegionInfo region : regionsWithoutValidFavoredNodes) {</span> |
| <span class="source-line-no">459</span><span id="line-459"> System.out.println("\t\t" + region.getRegionNameAsString());</span> |
| <span class="source-line-no">460</span><span id="line-460"> }</span> |
| <span class="source-line-no">461</span><span id="line-461"> }</span> |
| <span class="source-line-no">462</span><span id="line-462"></span> |
| <span class="source-line-no">463</span><span id="line-463"> // Print the locality information if enabled</span> |
| <span class="source-line-no">464</span><span id="line-464"> if (this.enforceLocality && totalRegions != 0) {</span> |
| <span class="source-line-no">465</span><span id="line-465"> // Print the actual locality for this table</span> |
| <span class="source-line-no">466</span><span id="line-466"> float actualLocality = 100 * this.actualLocalitySummary / (float) totalRegions;</span> |
| <span class="source-line-no">467</span><span id="line-467"> System.out.println("\n\tThe actual avg locality is " + df.format(actualLocality) + " %");</span> |
| <span class="source-line-no">468</span><span id="line-468"></span> |
| <span class="source-line-no">469</span><span id="line-469"> // Print the expected locality if regions are placed on the each kinds of</span> |
| <span class="source-line-no">470</span><span id="line-470"> // favored nodes</span> |
| <span class="source-line-no">471</span><span id="line-471"> for (FavoredNodesPlan.Position p : FavoredNodesPlan.Position.values()) {</span> |
| <span class="source-line-no">472</span><span id="line-472"> float avgLocality = 100 * (favoredNodesLocalitySummary[p.ordinal()] / (float) totalRegions);</span> |
| <span class="source-line-no">473</span><span id="line-473"> System.out.println("\t\tThe expected avg locality if all regions" + " on the "</span> |
| <span class="source-line-no">474</span><span id="line-474"> + p.toString() + " region servers: " + df.format(avgLocality) + " %");</span> |
| <span class="source-line-no">475</span><span id="line-475"> }</span> |
| <span class="source-line-no">476</span><span id="line-476"> }</span> |
| <span class="source-line-no">477</span><span id="line-477"></span> |
| <span class="source-line-no">478</span><span id="line-478"> // Print the region balancing information</span> |
| <span class="source-line-no">479</span><span id="line-479"> System.out.println("\n\tTotal hosting region servers: " + totalRegionServers);</span> |
| <span class="source-line-no">480</span><span id="line-480"> // Print the region balance information</span> |
| <span class="source-line-no">481</span><span id="line-481"> if (totalRegionServers != 0) {</span> |
| <span class="source-line-no">482</span><span id="line-482"> System.out.println("\tAvg dispersion num: " + df.format(avgDispersionNum)</span> |
| <span class="source-line-no">483</span><span id="line-483"> + " hosts;\tMax dispersion num: " + df.format(maxDispersionNum)</span> |
| <span class="source-line-no">484</span><span id="line-484"> + " hosts;\tMin dispersion num: " + df.format(minDispersionNum) + " hosts;");</span> |
| <span class="source-line-no">485</span><span id="line-485"></span> |
| <span class="source-line-no">486</span><span id="line-486"> System.out.println("\t\tThe number of the region servers with the max" + " dispersion num: "</span> |
| <span class="source-line-no">487</span><span id="line-487"> + this.maxDispersionNumServerSet.size());</span> |
| <span class="source-line-no">488</span><span id="line-488"> if (isDetailMode) {</span> |
| <span class="source-line-no">489</span><span id="line-489"> printHServerAddressSet(maxDispersionNumServerSet);</span> |
| <span class="source-line-no">490</span><span id="line-490"> }</span> |
| <span class="source-line-no">491</span><span id="line-491"></span> |
| <span class="source-line-no">492</span><span id="line-492"> System.out.println("\t\tThe number of the region servers with the min" + " dispersion num: "</span> |
| <span class="source-line-no">493</span><span id="line-493"> + this.minDispersionNumServerSet.size());</span> |
| <span class="source-line-no">494</span><span id="line-494"> if (isDetailMode) {</span> |
| <span class="source-line-no">495</span><span id="line-495"> printHServerAddressSet(maxDispersionNumServerSet);</span> |
| <span class="source-line-no">496</span><span id="line-496"> }</span> |
| <span class="source-line-no">497</span><span id="line-497"></span> |
| <span class="source-line-no">498</span><span id="line-498"> System.out.println("\tAvg dispersion score: " + df.format(avgDispersionScore)</span> |
| <span class="source-line-no">499</span><span id="line-499"> + ";\tMax dispersion score: " + df.format(maxDispersionScore) + ";\tMin dispersion score: "</span> |
| <span class="source-line-no">500</span><span id="line-500"> + df.format(minDispersionScore) + ";");</span> |
| <span class="source-line-no">501</span><span id="line-501"></span> |
| <span class="source-line-no">502</span><span id="line-502"> System.out.println("\t\tThe number of the region servers with the max" + " dispersion score: "</span> |
| <span class="source-line-no">503</span><span id="line-503"> + this.maxDispersionScoreServerSet.size());</span> |
| <span class="source-line-no">504</span><span id="line-504"> if (isDetailMode) {</span> |
| <span class="source-line-no">505</span><span id="line-505"> printHServerAddressSet(maxDispersionScoreServerSet);</span> |
| <span class="source-line-no">506</span><span id="line-506"> }</span> |
| <span class="source-line-no">507</span><span id="line-507"></span> |
| <span class="source-line-no">508</span><span id="line-508"> System.out.println("\t\tThe number of the region servers with the min" + " dispersion score: "</span> |
| <span class="source-line-no">509</span><span id="line-509"> + this.minDispersionScoreServerSet.size());</span> |
| <span class="source-line-no">510</span><span id="line-510"> if (isDetailMode) {</span> |
| <span class="source-line-no">511</span><span id="line-511"> printHServerAddressSet(minDispersionScoreServerSet);</span> |
| <span class="source-line-no">512</span><span id="line-512"> }</span> |
| <span class="source-line-no">513</span><span id="line-513"></span> |
| <span class="source-line-no">514</span><span id="line-514"> System.out.println("\tAvg regions/region server: " + df.format(avgRegionsOnRS)</span> |
| <span class="source-line-no">515</span><span id="line-515"> + ";\tMax regions/region server: " + maxRegionsOnRS + ";\tMin regions/region server: "</span> |
| <span class="source-line-no">516</span><span id="line-516"> + minRegionsOnRS + ";");</span> |
| <span class="source-line-no">517</span><span id="line-517"></span> |
| <span class="source-line-no">518</span><span id="line-518"> // Print the details about the most loaded region servers</span> |
| <span class="source-line-no">519</span><span id="line-519"> System.out</span> |
| <span class="source-line-no">520</span><span id="line-520"> .println("\t\tThe number of the most loaded region servers: " + mostLoadedRSSet.size());</span> |
| <span class="source-line-no">521</span><span id="line-521"> if (isDetailMode) {</span> |
| <span class="source-line-no">522</span><span id="line-522"> printHServerAddressSet(mostLoadedRSSet);</span> |
| <span class="source-line-no">523</span><span id="line-523"> }</span> |
| <span class="source-line-no">524</span><span id="line-524"></span> |
| <span class="source-line-no">525</span><span id="line-525"> // Print the details about the least loaded region servers</span> |
| <span class="source-line-no">526</span><span id="line-526"> System.out</span> |
| <span class="source-line-no">527</span><span id="line-527"> .println("\t\tThe number of the least loaded region servers: " + leastLoadedRSSet.size());</span> |
| <span class="source-line-no">528</span><span id="line-528"> if (isDetailMode) {</span> |
| <span class="source-line-no">529</span><span id="line-529"> printHServerAddressSet(leastLoadedRSSet);</span> |
| <span class="source-line-no">530</span><span id="line-530"> }</span> |
| <span class="source-line-no">531</span><span id="line-531"> }</span> |
| <span class="source-line-no">532</span><span id="line-532"> System.out.println("==============================");</span> |
| <span class="source-line-no">533</span><span id="line-533"> }</span> |
| <span class="source-line-no">534</span><span id="line-534"></span> |
| <span class="source-line-no">535</span><span id="line-535"> /**</span> |
| <span class="source-line-no">536</span><span id="line-536"> * Return the unassigned regions</span> |
| <span class="source-line-no">537</span><span id="line-537"> * @return unassigned regions</span> |
| <span class="source-line-no">538</span><span id="line-538"> */</span> |
| <span class="source-line-no">539</span><span id="line-539"> List<RegionInfo> getUnassignedRegions() {</span> |
| <span class="source-line-no">540</span><span id="line-540"> return unAssignedRegionsList;</span> |
| <span class="source-line-no">541</span><span id="line-541"> }</span> |
| <span class="source-line-no">542</span><span id="line-542"></span> |
| <span class="source-line-no">543</span><span id="line-543"> /**</span> |
| <span class="source-line-no">544</span><span id="line-544"> * Return the regions without favored nodes</span> |
| <span class="source-line-no">545</span><span id="line-545"> * @return regions without favored nodes</span> |
| <span class="source-line-no">546</span><span id="line-546"> */</span> |
| <span class="source-line-no">547</span><span id="line-547"> List<RegionInfo> getRegionsWithoutValidFavoredNodes() {</span> |
| <span class="source-line-no">548</span><span id="line-548"> return regionsWithoutValidFavoredNodes;</span> |
| <span class="source-line-no">549</span><span id="line-549"> }</span> |
| <span class="source-line-no">550</span><span id="line-550"></span> |
| <span class="source-line-no">551</span><span id="line-551"> /**</span> |
| <span class="source-line-no">552</span><span id="line-552"> * Return the regions not assigned to its favored nodes</span> |
| <span class="source-line-no">553</span><span id="line-553"> * @return regions not assigned to its favored nodes</span> |
| <span class="source-line-no">554</span><span id="line-554"> */</span> |
| <span class="source-line-no">555</span><span id="line-555"> List<RegionInfo> getNonFavoredAssignedRegions() {</span> |
| <span class="source-line-no">556</span><span id="line-556"> return nonFavoredAssignedRegionList;</span> |
| <span class="source-line-no">557</span><span id="line-557"> }</span> |
| <span class="source-line-no">558</span><span id="line-558"></span> |
| <span class="source-line-no">559</span><span id="line-559"> /**</span> |
| <span class="source-line-no">560</span><span id="line-560"> * Return the number of regions assigned to their favored nodes</span> |
| <span class="source-line-no">561</span><span id="line-561"> * @return number of regions assigned to their favored nodes</span> |
| <span class="source-line-no">562</span><span id="line-562"> */</span> |
| <span class="source-line-no">563</span><span id="line-563"> int getTotalFavoredAssignments() {</span> |
| <span class="source-line-no">564</span><span id="line-564"> return totalFavoredAssignments;</span> |
| <span class="source-line-no">565</span><span id="line-565"> }</span> |
| <span class="source-line-no">566</span><span id="line-566"></span> |
| <span class="source-line-no">567</span><span id="line-567"> /**</span> |
| <span class="source-line-no">568</span><span id="line-568"> * Return the number of regions based on the position (primary/secondary/ tertiary) assigned to</span> |
| <span class="source-line-no">569</span><span id="line-569"> * their favored nodes</span> |
| <span class="source-line-no">570</span><span id="line-570"> * @return the number of regions</span> |
| <span class="source-line-no">571</span><span id="line-571"> */</span> |
| <span class="source-line-no">572</span><span id="line-572"> int getNumRegionsOnFavoredNodeByPosition(FavoredNodesPlan.Position position) {</span> |
| <span class="source-line-no">573</span><span id="line-573"> return favoredNodes[position.ordinal()];</span> |
| <span class="source-line-no">574</span><span id="line-574"> }</span> |
| <span class="source-line-no">575</span><span id="line-575"></span> |
| <span class="source-line-no">576</span><span id="line-576"> private void printHServerAddressSet(Set<ServerName> serverSet) {</span> |
| <span class="source-line-no">577</span><span id="line-577"> if (serverSet == null) {</span> |
| <span class="source-line-no">578</span><span id="line-578"> return;</span> |
| <span class="source-line-no">579</span><span id="line-579"> }</span> |
| <span class="source-line-no">580</span><span id="line-580"> int i = 0;</span> |
| <span class="source-line-no">581</span><span id="line-581"> for (ServerName addr : serverSet) {</span> |
| <span class="source-line-no">582</span><span id="line-582"> if (i++ % 3 == 0) {</span> |
| <span class="source-line-no">583</span><span id="line-583"> System.out.print("\n\t\t\t");</span> |
| <span class="source-line-no">584</span><span id="line-584"> }</span> |
| <span class="source-line-no">585</span><span id="line-585"> System.out.print(addr.getAddress() + " ; ");</span> |
| <span class="source-line-no">586</span><span id="line-586"> }</span> |
| <span class="source-line-no">587</span><span id="line-587"> System.out.println("\n");</span> |
| <span class="source-line-no">588</span><span id="line-588"> }</span> |
| <span class="source-line-no">589</span><span id="line-589">}</span> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
