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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.master;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.PRIMARY;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.SECONDARY;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position.TERTIARY;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Arrays;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.HashMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.HashSet;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.TreeMap;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.CatalogFamilyFormat;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HConstants;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ServerName;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.TableName;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Result;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Table;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.favored.FavoredNodesPlan;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.slf4j.Logger;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.slf4j.LoggerFactory;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span>/**<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * Used internally for reading meta and constructing datastructures that are then queried, for<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * things like regions to regionservers, table to regions, etc. It also records the favored nodes<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * mapping for regions.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>@InterfaceAudience.Private<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>public class SnapshotOfRegionAssignmentFromMeta {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private static final Logger LOG =<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> LoggerFactory.getLogger(SnapshotOfRegionAssignmentFromMeta.class.getName());<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private final Connection connection;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> /** the table name to region map */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private final Map<TableName, List<RegionInfo>> tableToRegionMap;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> /** the region to region server map */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> // private final Map<RegionInfo, ServerName> regionToRegionServerMap;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private Map<RegionInfo, ServerName> regionToRegionServerMap;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> /** the region name to region info map */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private final Map<String, RegionInfo> regionNameToRegionInfoMap;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> /** the regionServer to region map */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private final Map<ServerName, List<RegionInfo>> currentRSToRegionMap;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private final Map<ServerName, List<RegionInfo>> secondaryRSToRegionMap;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private final Map<ServerName, List<RegionInfo>> teritiaryRSToRegionMap;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private final Map<ServerName, List<RegionInfo>> primaryRSToRegionMap;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> /** the existing assignment plan in the hbase:meta region */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private final FavoredNodesPlan existingAssignmentPlan;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private final Set<TableName> disabledTables;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private final boolean excludeOfflinedSplitParents;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> public SnapshotOfRegionAssignmentFromMeta(Connection connection) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> this(connection, new HashSet<>(), false);<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public SnapshotOfRegionAssignmentFromMeta(Connection connection, Set<TableName> disabledTables,<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> boolean excludeOfflinedSplitParents) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> this.connection = connection;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> tableToRegionMap = new HashMap<>();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> regionToRegionServerMap = new HashMap<>();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> currentRSToRegionMap = new HashMap<>();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> primaryRSToRegionMap = new HashMap<>();<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> secondaryRSToRegionMap = new HashMap<>();<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> teritiaryRSToRegionMap = new HashMap<>();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> regionNameToRegionInfoMap = new TreeMap<>();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> existingAssignmentPlan = new FavoredNodesPlan();<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> this.disabledTables = disabledTables;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> this.excludeOfflinedSplitParents = excludeOfflinedSplitParents;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> private void processMetaRecord(Result result) throws IOException {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> if (result == null || result.isEmpty()) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> return;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> RegionLocations rl = CatalogFamilyFormat.getRegionLocations(result);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> if (rl == null) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> return;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> RegionInfo hri = rl.getRegionLocation(0).getRegion();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> if (hri == null) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return;<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> if (hri.getTable() == null) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> return;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (disabledTables.contains(hri.getTable())) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> return;<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // Are we to include split parents in the list?<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> if (excludeOfflinedSplitParents && hri.isSplit()) {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return;<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> HRegionLocation[] hrls = rl.getRegionLocations();<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // Add the current assignment to the snapshot for all replicas<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> for (int i = 0; i < hrls.length; i++) {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> if (hrls[i] == null) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> continue;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> hri = hrls[i].getRegion();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (hri == null) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> continue;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> addAssignment(hri, hrls[i].getServerName());<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> addRegion(hri);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> hri = rl.getRegionLocation(0).getRegion();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // the code below is to handle favored nodes<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> byte[] favoredNodes = result.getValue(HConstants.CATALOG_FAMILY,<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> FavoredNodeAssignmentHelper.FAVOREDNODES_QUALIFIER);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> if (favoredNodes == null) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> return;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Add the favored nodes into assignment plan<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ServerName[] favoredServerList = FavoredNodeAssignmentHelper.getFavoredNodesList(favoredNodes);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // Add the favored nodes into assignment plan<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> existingAssignmentPlan.updateFavoredNodesMap(hri, Arrays.asList(favoredServerList));<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> /*<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> * Typically there should be FAVORED_NODES_NUM favored nodes for a region in meta. If there is<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * less than FAVORED_NODES_NUM, lets use as much as we can but log a warning.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> */<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> if (favoredServerList.length != FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> LOG.warn("Insufficient favored nodes for region " + hri + " fn: "<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> + Arrays.toString(favoredServerList));<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> for (int i = 0; i < favoredServerList.length; i++) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (i == PRIMARY.ordinal()) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> addPrimaryAssignment(hri, favoredServerList[i]);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (i == SECONDARY.ordinal()) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> addSecondaryAssignment(hri, favoredServerList[i]);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (i == TERTIARY.ordinal()) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> addTeritiaryAssignment(hri, favoredServerList[i]);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> /**<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * Initialize the region assignment snapshot by scanning the hbase:meta table<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> */<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> public void initialize() throws IOException {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> LOG.info("Start to scan the hbase:meta for the current region assignment " + "snappshot");<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> // Scan hbase:meta to pick up user regions<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> try (Table metaTable = connection.getTable(TableName.META_TABLE_NAME);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> ResultScanner scanner = metaTable.getScanner(HConstants.CATALOG_FAMILY)) {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> for (;;) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> Result result = scanner.next();<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> if (result == null) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> break;<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> try {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> processMetaRecord(result);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> } catch (RuntimeException e) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> LOG.error("Catch remote exception " + e.getMessage() + " when processing" + result);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> throw e;<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> LOG.info("Finished to scan the hbase:meta for the current region assignment" + "snapshot");<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> private void addRegion(RegionInfo regionInfo) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // Process the region name to region info map<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> regionNameToRegionInfoMap.put(regionInfo.getRegionNameAsString(), regionInfo);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> // Process the table to region map<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> TableName tableName = regionInfo.getTable();<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> List<RegionInfo> regionList = tableToRegionMap.get(tableName);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (regionList == null) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> regionList = new ArrayList<>();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> // Add the current region info into the tableToRegionMap<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> regionList.add(regionInfo);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> tableToRegionMap.put(tableName, regionList);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span><a name="line.207"></a> |
| <span class="sourceLineNo">208</span> private void addAssignment(RegionInfo regionInfo, ServerName server) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> // Process the region to region server map<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> regionToRegionServerMap.put(regionInfo, server);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span><a name="line.211"></a> |
| <span class="sourceLineNo">212</span> if (server == null) return;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span> // Process the region server to region map<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> List<RegionInfo> regionList = currentRSToRegionMap.get(server);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> if (regionList == null) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> regionList = new ArrayList<>();<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> regionList.add(regionInfo);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> currentRSToRegionMap.put(server, regionList);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> private void addPrimaryAssignment(RegionInfo regionInfo, ServerName server) {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // Process the region server to region map<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> List<RegionInfo> regionList = primaryRSToRegionMap.get(server);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> if (regionList == null) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> regionList = new ArrayList<>();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> regionList.add(regionInfo);<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> primaryRSToRegionMap.put(server, regionList);<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> private void addSecondaryAssignment(RegionInfo regionInfo, ServerName server) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> // Process the region server to region map<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> List<RegionInfo> regionList = secondaryRSToRegionMap.get(server);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> if (regionList == null) {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> regionList = new ArrayList<>();<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> }<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> regionList.add(regionInfo);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> secondaryRSToRegionMap.put(server, regionList);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> private void addTeritiaryAssignment(RegionInfo regionInfo, ServerName server) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // Process the region server to region map<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> List<RegionInfo> regionList = teritiaryRSToRegionMap.get(server);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> if (regionList == null) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> regionList = new ArrayList<>();<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> regionList.add(regionInfo);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> teritiaryRSToRegionMap.put(server, regionList);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> /**<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * Get the regioninfo for a region<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * @return the regioninfo<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> */<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> public Map<String, RegionInfo> getRegionNameToRegionInfoMap() {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> return this.regionNameToRegionInfoMap;<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> /**<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * Get regions for tables<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> * @return a mapping from table to regions<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> */<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> public Map<TableName, List<RegionInfo>> getTableToRegionMap() {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> return tableToRegionMap;<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> }<a name="line.267"></a> |
| <span class="sourceLineNo">268</span><a name="line.268"></a> |
| <span class="sourceLineNo">269</span> /**<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * Get region to region server map<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> * @return region to region server map<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> */<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> public Map<RegionInfo, ServerName> getRegionToRegionServerMap() {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> return regionToRegionServerMap;<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> /**<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * Get regionserver to region map<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * @return regionserver to region map<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> */<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> public Map<ServerName, List<RegionInfo>> getRegionServerToRegionMap() {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> return currentRSToRegionMap;<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span><a name="line.284"></a> |
| <span class="sourceLineNo">285</span> /**<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * Get the favored nodes plan<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * @return the existing favored nodes plan<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> */<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public FavoredNodesPlan getExistingAssignmentPlan() {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> return this.existingAssignmentPlan;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> /**<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * Get the table set<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> * @return the table set<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> */<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> public Set<TableName> getTableSet() {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> return this.tableToRegionMap.keySet();<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span><a name="line.300"></a> |
| <span class="sourceLineNo">301</span> public Map<ServerName, List<RegionInfo>> getSecondaryToRegionInfoMap() {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> return this.secondaryRSToRegionMap;<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> public Map<ServerName, List<RegionInfo>> getTertiaryToRegionInfoMap() {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> return this.teritiaryRSToRegionMap;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> public Map<ServerName, List<RegionInfo>> getPrimaryToRegionInfoMap() {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> return this.primaryRSToRegionMap;<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> }<a name="line.311"></a> |
| <span class="sourceLineNo">312</span>}<a name="line.312"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
