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| <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 static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.PRIMARY;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.SECONDARY;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.TERTIARY;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.IOException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.ArrayList;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Arrays;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.HashMap;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.HashSet;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.List;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.Map;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.Set;</span> |
| <span class="source-line-no">032</span><span id="line-32">import java.util.TreeMap;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.CatalogFamilyFormat;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.RegionLocations;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.client.Result;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.client.ResultScanner;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.client.Table;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.favored.FavoredNodesPlan;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.slf4j.Logger;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50">/**</span> |
| <span class="source-line-no">051</span><span id="line-51"> * Used internally for reading meta and constructing datastructures that are then queried, for</span> |
| <span class="source-line-no">052</span><span id="line-52"> * things like regions to regionservers, table to regions, etc. It also records the favored nodes</span> |
| <span class="source-line-no">053</span><span id="line-53"> * mapping for regions.</span> |
| <span class="source-line-no">054</span><span id="line-54"> */</span> |
| <span class="source-line-no">055</span><span id="line-55">@InterfaceAudience.Private</span> |
| <span class="source-line-no">056</span><span id="line-56">public class SnapshotOfRegionAssignmentFromMeta {</span> |
| <span class="source-line-no">057</span><span id="line-57"> private static final Logger LOG =</span> |
| <span class="source-line-no">058</span><span id="line-58"> LoggerFactory.getLogger(SnapshotOfRegionAssignmentFromMeta.class.getName());</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> private final Connection connection;</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> /** the table name to region map */</span> |
| <span class="source-line-no">063</span><span id="line-63"> private final Map<TableName, List<RegionInfo>> tableToRegionMap;</span> |
| <span class="source-line-no">064</span><span id="line-64"> /** the region to region server map */</span> |
| <span class="source-line-no">065</span><span id="line-65"> // private final Map<RegionInfo, ServerName> regionToRegionServerMap;</span> |
| <span class="source-line-no">066</span><span id="line-66"> private Map<RegionInfo, ServerName> regionToRegionServerMap;</span> |
| <span class="source-line-no">067</span><span id="line-67"> /** the region name to region info map */</span> |
| <span class="source-line-no">068</span><span id="line-68"> private final Map<String, RegionInfo> regionNameToRegionInfoMap;</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> /** the regionServer to region map */</span> |
| <span class="source-line-no">071</span><span id="line-71"> private final Map<ServerName, List<RegionInfo>> currentRSToRegionMap;</span> |
| <span class="source-line-no">072</span><span id="line-72"> private final Map<ServerName, List<RegionInfo>> secondaryRSToRegionMap;</span> |
| <span class="source-line-no">073</span><span id="line-73"> private final Map<ServerName, List<RegionInfo>> teritiaryRSToRegionMap;</span> |
| <span class="source-line-no">074</span><span id="line-74"> private final Map<ServerName, List<RegionInfo>> primaryRSToRegionMap;</span> |
| <span class="source-line-no">075</span><span id="line-75"> /** the existing assignment plan in the hbase:meta region */</span> |
| <span class="source-line-no">076</span><span id="line-76"> private final FavoredNodesPlan existingAssignmentPlan;</span> |
| <span class="source-line-no">077</span><span id="line-77"> private final Set<TableName> disabledTables;</span> |
| <span class="source-line-no">078</span><span id="line-78"> private final boolean excludeOfflinedSplitParents;</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> public SnapshotOfRegionAssignmentFromMeta(Connection connection) {</span> |
| <span class="source-line-no">081</span><span id="line-81"> this(connection, new HashSet<>(), false);</span> |
| <span class="source-line-no">082</span><span id="line-82"> }</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> public SnapshotOfRegionAssignmentFromMeta(Connection connection, Set<TableName> disabledTables,</span> |
| <span class="source-line-no">085</span><span id="line-85"> boolean excludeOfflinedSplitParents) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> this.connection = connection;</span> |
| <span class="source-line-no">087</span><span id="line-87"> tableToRegionMap = new HashMap<>();</span> |
| <span class="source-line-no">088</span><span id="line-88"> regionToRegionServerMap = new HashMap<>();</span> |
| <span class="source-line-no">089</span><span id="line-89"> currentRSToRegionMap = new HashMap<>();</span> |
| <span class="source-line-no">090</span><span id="line-90"> primaryRSToRegionMap = new HashMap<>();</span> |
| <span class="source-line-no">091</span><span id="line-91"> secondaryRSToRegionMap = new HashMap<>();</span> |
| <span class="source-line-no">092</span><span id="line-92"> teritiaryRSToRegionMap = new HashMap<>();</span> |
| <span class="source-line-no">093</span><span id="line-93"> regionNameToRegionInfoMap = new TreeMap<>();</span> |
| <span class="source-line-no">094</span><span id="line-94"> existingAssignmentPlan = new FavoredNodesPlan();</span> |
| <span class="source-line-no">095</span><span id="line-95"> this.disabledTables = disabledTables;</span> |
| <span class="source-line-no">096</span><span id="line-96"> this.excludeOfflinedSplitParents = excludeOfflinedSplitParents;</span> |
| <span class="source-line-no">097</span><span id="line-97"> }</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> private void processMetaRecord(Result result) throws IOException {</span> |
| <span class="source-line-no">100</span><span id="line-100"> if (result == null || result.isEmpty()) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> return;</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"> RegionLocations rl = CatalogFamilyFormat.getRegionLocations(result);</span> |
| <span class="source-line-no">104</span><span id="line-104"> if (rl == null) {</span> |
| <span class="source-line-no">105</span><span id="line-105"> return;</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> RegionInfo hri = rl.getRegionLocation(0).getRegion();</span> |
| <span class="source-line-no">108</span><span id="line-108"> if (hri == null) {</span> |
| <span class="source-line-no">109</span><span id="line-109"> return;</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"> if (hri.getTable() == null) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> return;</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"> if (disabledTables.contains(hri.getTable())) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> return;</span> |
| <span class="source-line-no">116</span><span id="line-116"> }</span> |
| <span class="source-line-no">117</span><span id="line-117"> // Are we to include split parents in the list?</span> |
| <span class="source-line-no">118</span><span id="line-118"> if (excludeOfflinedSplitParents && hri.isSplit()) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> return;</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"> HRegionLocation[] hrls = rl.getRegionLocations();</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> // Add the current assignment to the snapshot for all replicas</span> |
| <span class="source-line-no">124</span><span id="line-124"> for (int i = 0; i < hrls.length; i++) {</span> |
| <span class="source-line-no">125</span><span id="line-125"> if (hrls[i] == null) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> continue;</span> |
| <span class="source-line-no">127</span><span id="line-127"> }</span> |
| <span class="source-line-no">128</span><span id="line-128"> hri = hrls[i].getRegion();</span> |
| <span class="source-line-no">129</span><span id="line-129"> if (hri == null) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> continue;</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"> addAssignment(hri, hrls[i].getServerName());</span> |
| <span class="source-line-no">133</span><span id="line-133"> addRegion(hri);</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> hri = rl.getRegionLocation(0).getRegion();</span> |
| <span class="source-line-no">137</span><span id="line-137"> // the code below is to handle favored nodes</span> |
| <span class="source-line-no">138</span><span id="line-138"> byte[] favoredNodes = result.getValue(HConstants.CATALOG_FAMILY,</span> |
| <span class="source-line-no">139</span><span id="line-139"> FavoredNodeAssignmentHelper.FAVOREDNODES_QUALIFIER);</span> |
| <span class="source-line-no">140</span><span id="line-140"> if (favoredNodes == null) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> return;</span> |
| <span class="source-line-no">142</span><span id="line-142"> }</span> |
| <span class="source-line-no">143</span><span id="line-143"> // Add the favored nodes into assignment plan</span> |
| <span class="source-line-no">144</span><span id="line-144"> ServerName[] favoredServerList = FavoredNodeAssignmentHelper.getFavoredNodesList(favoredNodes);</span> |
| <span class="source-line-no">145</span><span id="line-145"> // Add the favored nodes into assignment plan</span> |
| <span class="source-line-no">146</span><span id="line-146"> existingAssignmentPlan.updateFavoredNodesMap(hri, Arrays.asList(favoredServerList));</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> /*</span> |
| <span class="source-line-no">149</span><span id="line-149"> * Typically there should be FAVORED_NODES_NUM favored nodes for a region in meta. If there is</span> |
| <span class="source-line-no">150</span><span id="line-150"> * less than FAVORED_NODES_NUM, lets use as much as we can but log a warning.</span> |
| <span class="source-line-no">151</span><span id="line-151"> */</span> |
| <span class="source-line-no">152</span><span id="line-152"> if (favoredServerList.length != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> LOG.warn("Insufficient favored nodes for region " + hri + " fn: "</span> |
| <span class="source-line-no">154</span><span id="line-154"> + Arrays.toString(favoredServerList));</span> |
| <span class="source-line-no">155</span><span id="line-155"> }</span> |
| <span class="source-line-no">156</span><span id="line-156"> for (int i = 0; i < favoredServerList.length; i++) {</span> |
| <span class="source-line-no">157</span><span id="line-157"> if (i == PRIMARY.ordinal()) {</span> |
| <span class="source-line-no">158</span><span id="line-158"> addPrimaryAssignment(hri, favoredServerList[i]);</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"> if (i == SECONDARY.ordinal()) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> addSecondaryAssignment(hri, favoredServerList[i]);</span> |
| <span class="source-line-no">162</span><span id="line-162"> }</span> |
| <span class="source-line-no">163</span><span id="line-163"> if (i == TERTIARY.ordinal()) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> addTeritiaryAssignment(hri, favoredServerList[i]);</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168"></span> |
| <span class="source-line-no">169</span><span id="line-169"> /**</span> |
| <span class="source-line-no">170</span><span id="line-170"> * Initialize the region assignment snapshot by scanning the hbase:meta table</span> |
| <span class="source-line-no">171</span><span id="line-171"> */</span> |
| <span class="source-line-no">172</span><span id="line-172"> public void initialize() throws IOException {</span> |
| <span class="source-line-no">173</span><span id="line-173"> LOG.info("Start to scan the hbase:meta for the current region assignment " + "snappshot");</span> |
| <span class="source-line-no">174</span><span id="line-174"> // Scan hbase:meta to pick up user regions</span> |
| <span class="source-line-no">175</span><span id="line-175"> try (Table metaTable = connection.getTable(TableName.META_TABLE_NAME);</span> |
| <span class="source-line-no">176</span><span id="line-176"> ResultScanner scanner = metaTable.getScanner(HConstants.CATALOG_FAMILY)) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> for (;;) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> Result result = scanner.next();</span> |
| <span class="source-line-no">179</span><span id="line-179"> if (result == null) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> break;</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> try {</span> |
| <span class="source-line-no">183</span><span id="line-183"> processMetaRecord(result);</span> |
| <span class="source-line-no">184</span><span id="line-184"> } catch (RuntimeException e) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> LOG.error("Catch remote exception " + e.getMessage() + " when processing" + result);</span> |
| <span class="source-line-no">186</span><span id="line-186"> throw e;</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"> LOG.info("Finished to scan the hbase:meta for the current region assignment" + "snapshot");</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"></span> |
| <span class="source-line-no">193</span><span id="line-193"> private void addRegion(RegionInfo regionInfo) {</span> |
| <span class="source-line-no">194</span><span id="line-194"> // Process the region name to region info map</span> |
| <span class="source-line-no">195</span><span id="line-195"> regionNameToRegionInfoMap.put(regionInfo.getRegionNameAsString(), regionInfo);</span> |
| <span class="source-line-no">196</span><span id="line-196"></span> |
| <span class="source-line-no">197</span><span id="line-197"> // Process the table to region map</span> |
| <span class="source-line-no">198</span><span id="line-198"> TableName tableName = regionInfo.getTable();</span> |
| <span class="source-line-no">199</span><span id="line-199"> List<RegionInfo> regionList = tableToRegionMap.get(tableName);</span> |
| <span class="source-line-no">200</span><span id="line-200"> if (regionList == null) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> regionList = new ArrayList<>();</span> |
| <span class="source-line-no">202</span><span id="line-202"> }</span> |
| <span class="source-line-no">203</span><span id="line-203"> // Add the current region info into the tableToRegionMap</span> |
| <span class="source-line-no">204</span><span id="line-204"> regionList.add(regionInfo);</span> |
| <span class="source-line-no">205</span><span id="line-205"> tableToRegionMap.put(tableName, regionList);</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"></span> |
| <span class="source-line-no">208</span><span id="line-208"> private void addAssignment(RegionInfo regionInfo, ServerName server) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> // Process the region to region server map</span> |
| <span class="source-line-no">210</span><span id="line-210"> regionToRegionServerMap.put(regionInfo, server);</span> |
| <span class="source-line-no">211</span><span id="line-211"></span> |
| <span class="source-line-no">212</span><span id="line-212"> if (server == null) return;</span> |
| <span class="source-line-no">213</span><span id="line-213"></span> |
| <span class="source-line-no">214</span><span id="line-214"> // Process the region server to region map</span> |
| <span class="source-line-no">215</span><span id="line-215"> List<RegionInfo> regionList = currentRSToRegionMap.get(server);</span> |
| <span class="source-line-no">216</span><span id="line-216"> if (regionList == null) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> regionList = new ArrayList<>();</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"> regionList.add(regionInfo);</span> |
| <span class="source-line-no">220</span><span id="line-220"> currentRSToRegionMap.put(server, regionList);</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"></span> |
| <span class="source-line-no">223</span><span id="line-223"> private void addPrimaryAssignment(RegionInfo regionInfo, ServerName server) {</span> |
| <span class="source-line-no">224</span><span id="line-224"> // Process the region server to region map</span> |
| <span class="source-line-no">225</span><span id="line-225"> List<RegionInfo> regionList = primaryRSToRegionMap.get(server);</span> |
| <span class="source-line-no">226</span><span id="line-226"> if (regionList == null) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> regionList = new ArrayList<>();</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> regionList.add(regionInfo);</span> |
| <span class="source-line-no">230</span><span id="line-230"> primaryRSToRegionMap.put(server, regionList);</span> |
| <span class="source-line-no">231</span><span id="line-231"> }</span> |
| <span class="source-line-no">232</span><span id="line-232"></span> |
| <span class="source-line-no">233</span><span id="line-233"> private void addSecondaryAssignment(RegionInfo regionInfo, ServerName server) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> // Process the region server to region map</span> |
| <span class="source-line-no">235</span><span id="line-235"> List<RegionInfo> regionList = secondaryRSToRegionMap.get(server);</span> |
| <span class="source-line-no">236</span><span id="line-236"> if (regionList == null) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> regionList = new ArrayList<>();</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"> regionList.add(regionInfo);</span> |
| <span class="source-line-no">240</span><span id="line-240"> secondaryRSToRegionMap.put(server, regionList);</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"> private void addTeritiaryAssignment(RegionInfo regionInfo, ServerName server) {</span> |
| <span class="source-line-no">244</span><span id="line-244"> // Process the region server to region map</span> |
| <span class="source-line-no">245</span><span id="line-245"> List<RegionInfo> regionList = teritiaryRSToRegionMap.get(server);</span> |
| <span class="source-line-no">246</span><span id="line-246"> if (regionList == null) {</span> |
| <span class="source-line-no">247</span><span id="line-247"> regionList = new ArrayList<>();</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"> regionList.add(regionInfo);</span> |
| <span class="source-line-no">250</span><span id="line-250"> teritiaryRSToRegionMap.put(server, regionList);</span> |
| <span class="source-line-no">251</span><span id="line-251"> }</span> |
| <span class="source-line-no">252</span><span id="line-252"></span> |
| <span class="source-line-no">253</span><span id="line-253"> /**</span> |
| <span class="source-line-no">254</span><span id="line-254"> * Get the regioninfo for a region</span> |
| <span class="source-line-no">255</span><span id="line-255"> * @return the regioninfo</span> |
| <span class="source-line-no">256</span><span id="line-256"> */</span> |
| <span class="source-line-no">257</span><span id="line-257"> public Map<String, RegionInfo> getRegionNameToRegionInfoMap() {</span> |
| <span class="source-line-no">258</span><span id="line-258"> return this.regionNameToRegionInfoMap;</span> |
| <span class="source-line-no">259</span><span id="line-259"> }</span> |
| <span class="source-line-no">260</span><span id="line-260"></span> |
| <span class="source-line-no">261</span><span id="line-261"> /**</span> |
| <span class="source-line-no">262</span><span id="line-262"> * Get regions for tables</span> |
| <span class="source-line-no">263</span><span id="line-263"> * @return a mapping from table to regions</span> |
| <span class="source-line-no">264</span><span id="line-264"> */</span> |
| <span class="source-line-no">265</span><span id="line-265"> public Map<TableName, List<RegionInfo>> getTableToRegionMap() {</span> |
| <span class="source-line-no">266</span><span id="line-266"> return tableToRegionMap;</span> |
| <span class="source-line-no">267</span><span id="line-267"> }</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> /**</span> |
| <span class="source-line-no">270</span><span id="line-270"> * Get region to region server map</span> |
| <span class="source-line-no">271</span><span id="line-271"> * @return region to region server map</span> |
| <span class="source-line-no">272</span><span id="line-272"> */</span> |
| <span class="source-line-no">273</span><span id="line-273"> public Map<RegionInfo, ServerName> getRegionToRegionServerMap() {</span> |
| <span class="source-line-no">274</span><span id="line-274"> return regionToRegionServerMap;</span> |
| <span class="source-line-no">275</span><span id="line-275"> }</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"> * Get regionserver to region map</span> |
| <span class="source-line-no">279</span><span id="line-279"> * @return regionserver to region map</span> |
| <span class="source-line-no">280</span><span id="line-280"> */</span> |
| <span class="source-line-no">281</span><span id="line-281"> public Map<ServerName, List<RegionInfo>> getRegionServerToRegionMap() {</span> |
| <span class="source-line-no">282</span><span id="line-282"> return currentRSToRegionMap;</span> |
| <span class="source-line-no">283</span><span id="line-283"> }</span> |
| <span class="source-line-no">284</span><span id="line-284"></span> |
| <span class="source-line-no">285</span><span id="line-285"> /**</span> |
| <span class="source-line-no">286</span><span id="line-286"> * Get the favored nodes plan</span> |
| <span class="source-line-no">287</span><span id="line-287"> * @return the existing favored nodes plan</span> |
| <span class="source-line-no">288</span><span id="line-288"> */</span> |
| <span class="source-line-no">289</span><span id="line-289"> public FavoredNodesPlan getExistingAssignmentPlan() {</span> |
| <span class="source-line-no">290</span><span id="line-290"> return this.existingAssignmentPlan;</span> |
| <span class="source-line-no">291</span><span id="line-291"> }</span> |
| <span class="source-line-no">292</span><span id="line-292"></span> |
| <span class="source-line-no">293</span><span id="line-293"> /**</span> |
| <span class="source-line-no">294</span><span id="line-294"> * Get the table set</span> |
| <span class="source-line-no">295</span><span id="line-295"> * @return the table set</span> |
| <span class="source-line-no">296</span><span id="line-296"> */</span> |
| <span class="source-line-no">297</span><span id="line-297"> public Set<TableName> getTableSet() {</span> |
| <span class="source-line-no">298</span><span id="line-298"> return this.tableToRegionMap.keySet();</span> |
| <span class="source-line-no">299</span><span id="line-299"> }</span> |
| <span class="source-line-no">300</span><span id="line-300"></span> |
| <span class="source-line-no">301</span><span id="line-301"> public Map<ServerName, List<RegionInfo>> getSecondaryToRegionInfoMap() {</span> |
| <span class="source-line-no">302</span><span id="line-302"> return this.secondaryRSToRegionMap;</span> |
| <span class="source-line-no">303</span><span id="line-303"> }</span> |
| <span class="source-line-no">304</span><span id="line-304"></span> |
| <span class="source-line-no">305</span><span id="line-305"> public Map<ServerName, List<RegionInfo>> getTertiaryToRegionInfoMap() {</span> |
| <span class="source-line-no">306</span><span id="line-306"> return this.teritiaryRSToRegionMap;</span> |
| <span class="source-line-no">307</span><span id="line-307"> }</span> |
| <span class="source-line-no">308</span><span id="line-308"></span> |
| <span class="source-line-no">309</span><span id="line-309"> public Map<ServerName, List<RegionInfo>> getPrimaryToRegionInfoMap() {</span> |
| <span class="source-line-no">310</span><span id="line-310"> return this.primaryRSToRegionMap;</span> |
| <span class="source-line-no">311</span><span id="line-311"> }</span> |
| <span class="source-line-no">312</span><span id="line-312">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
