| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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.assignment;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.ArrayList;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Collection;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Collections;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Comparator;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.HashMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Iterator;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.SortedSet;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.TreeSet;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.function.Predicate;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.stream.Collectors;<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.ServerName;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.TableName;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.slf4j.Logger;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.slf4j.LoggerFactory;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span>/**<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * RegionStates contains a set of Maps that describes the in-memory state of the AM, with the<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * regions available in the system, the region in transition, the offline regions and the servers<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * holding regions.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>@InterfaceAudience.Private<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>public class RegionStates {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private static final Logger LOG = LoggerFactory.getLogger(RegionStates.class);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> // This comparator sorts the RegionStates by time stamp then Region name.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> // Comparing by timestamp alone can lead us to discard different RegionStates that happen<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> // to share a timestamp.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private static class RegionStateStampComparator implements Comparator<RegionState> {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> @Override<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public int compare(final RegionState l, final RegionState r) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> int stampCmp = Long.compare(l.getStamp(), r.getStamp());<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> return stampCmp != 0 ? stampCmp : RegionInfo.COMPARATOR.compare(l.getRegion(), r.getRegion());<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> }<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public final static RegionStateStampComparator REGION_STATE_STAMP_COMPARATOR =<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> new RegionStateStampComparator();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private final Object regionsMapLock = new Object();<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> // TODO: Replace the ConcurrentSkipListMaps<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> /**<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * A Map from {@link RegionInfo#getRegionName()} to {@link RegionStateNode}<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> */<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private final ConcurrentSkipListMap<byte[], RegionStateNode> regionsMap =<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> new ConcurrentSkipListMap<>(Bytes.BYTES_COMPARATOR);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> /**<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * this map is a hack to lookup of region in master by encoded region name is O(n). must put and<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * remove with regionsMap.<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> */<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private final ConcurrentSkipListMap<String, RegionStateNode> encodedRegionsMap =<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> new ConcurrentSkipListMap<>();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private final ConcurrentSkipListMap<RegionInfo, RegionStateNode> regionInTransition =<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> new ConcurrentSkipListMap<>(RegionInfo.COMPARATOR);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> /**<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * Regions marked as offline on a read of hbase:meta. Unused or at least, once offlined, regions<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * have no means of coming on line again. TODO.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> */<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> private final ConcurrentSkipListMap<RegionInfo, RegionStateNode> regionOffline =<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> new ConcurrentSkipListMap<RegionInfo, RegionStateNode>();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> private final ConcurrentSkipListMap<byte[], RegionFailedOpen> regionFailedOpen =<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> new ConcurrentSkipListMap<byte[], RegionFailedOpen>(Bytes.BYTES_COMPARATOR);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> private final ConcurrentHashMap<ServerName, ServerStateNode> serverMap =<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> new ConcurrentHashMap<ServerName, ServerStateNode>();<a name="line.101"></a> |
| <span class="sourceLineNo">102</span><a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public RegionStates() {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> /**<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * Called on stop of AssignmentManager.<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> */<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public void clear() {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> regionsMap.clear();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> encodedRegionsMap.clear();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> regionInTransition.clear();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> regionOffline.clear();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> serverMap.clear();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> public boolean isRegionInRegionStates(final RegionInfo hri) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return (regionsMap.containsKey(hri.getRegionName()) || regionInTransition.containsKey(hri)<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> || regionOffline.containsKey(hri));<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // ==========================================================================<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // RegionStateNode helpers<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // ==========================================================================<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> RegionStateNode createRegionStateNode(RegionInfo regionInfo) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> synchronized (regionsMapLock) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> RegionStateNode node = regionsMap.computeIfAbsent(regionInfo.getRegionName(),<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> key -> new RegionStateNode(regionInfo, regionInTransition));<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (encodedRegionsMap.get(regionInfo.getEncodedName()) != node) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> encodedRegionsMap.put(regionInfo.getEncodedName(), node);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> return node;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> public RegionStateNode getOrCreateRegionStateNode(RegionInfo regionInfo) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> RegionStateNode node = getRegionStateNodeFromName(regionInfo.getRegionName());<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> return node != null ? node : createRegionStateNode(regionInfo);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> public RegionStateNode getRegionStateNodeFromName(byte[] regionName) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> return regionsMap.get(regionName);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span><a name="line.146"></a> |
| <span class="sourceLineNo">147</span> public RegionStateNode getRegionStateNodeFromEncodedRegionName(final String encodedRegionName) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return encodedRegionsMap.get(encodedRegionName);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> public RegionStateNode getRegionStateNode(RegionInfo regionInfo) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> return getRegionStateNodeFromName(regionInfo.getRegionName());<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> public void deleteRegion(final RegionInfo regionInfo) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> synchronized (regionsMapLock) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> regionsMap.remove(regionInfo.getRegionName());<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> encodedRegionsMap.remove(regionInfo.getEncodedName());<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> // See HBASE-20860<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // After master restarts, merged regions' RIT state may not be cleaned,<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> // making sure they are cleaned here<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (regionInTransition.containsKey(regionInfo)) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> regionInTransition.remove(regionInfo);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // Remove from the offline regions map too if there.<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (this.regionOffline.containsKey(regionInfo)) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (LOG.isTraceEnabled()) LOG.trace("Removing from regionOffline Map: " + regionInfo);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> this.regionOffline.remove(regionInfo);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> }<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> public void deleteRegions(final List<RegionInfo> regionInfos) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> regionInfos.forEach(this::deleteRegion);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> List<RegionStateNode> getTableRegionStateNodes(final TableName tableName) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> final ArrayList<RegionStateNode> regions = new ArrayList<RegionStateNode>();<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> for (RegionStateNode node : regionsMap.tailMap(tableName.getName()).values()) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> if (!node.getTable().equals(tableName)) break;<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> regions.add(node);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> return regions;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> ArrayList<RegionState> getTableRegionStates(final TableName tableName) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> final ArrayList<RegionState> regions = new ArrayList<RegionState>();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> for (RegionStateNode node : regionsMap.tailMap(tableName.getName()).values()) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> if (!node.getTable().equals(tableName)) break;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> regions.add(node.toRegionState());<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> return regions;<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> ArrayList<RegionInfo> getTableRegionsInfo(final TableName tableName) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> final ArrayList<RegionInfo> regions = new ArrayList<RegionInfo>();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> for (RegionStateNode node : regionsMap.tailMap(tableName.getName()).values()) {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> if (!node.getTable().equals(tableName)) break;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> regions.add(node.getRegionInfo());<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> return regions;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> /** Returns A view of region state nodes for all the regions. */<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> public Collection<RegionStateNode> getRegionStateNodes() {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> return Collections.unmodifiableCollection(regionsMap.values());<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> /** Returns A snapshot of region state nodes for all the regions. */<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> public ArrayList<RegionState> getRegionStates() {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> final ArrayList<RegionState> regions = new ArrayList<>(regionsMap.size());<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> regions.add(node.toRegionState());<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> return regions;<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> // ==========================================================================<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // RegionState helpers<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // ==========================================================================<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> public RegionState getRegionState(final RegionInfo regionInfo) {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> RegionStateNode regionStateNode = getRegionStateNode(regionInfo);<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> return regionStateNode == null ? null : regionStateNode.toRegionState();<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> public RegionState getRegionState(final String encodedRegionName) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> final RegionStateNode node = encodedRegionsMap.get(encodedRegionName);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> if (node == null) {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> return null;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> return node.toRegionState();<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span><a name="line.233"></a> |
| <span class="sourceLineNo">234</span> // ============================================================================================<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> // TODO: helpers<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // ============================================================================================<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> public boolean hasTableRegionStates(final TableName tableName) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> // TODO<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> return !getTableRegionStates(tableName).isEmpty();<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span><a name="line.241"></a> |
| <span class="sourceLineNo">242</span> /** Returns Return online regions of table; does not include OFFLINE or SPLITTING regions. */<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> public List<RegionInfo> getRegionsOfTable(TableName table) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return getRegionsOfTable(table, regionNode -> !regionNode.isInState(State.OFFLINE, State.SPLIT)<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> && !regionNode.getRegionInfo().isSplitParent());<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> }<a name="line.246"></a> |
| <span class="sourceLineNo">247</span><a name="line.247"></a> |
| <span class="sourceLineNo">248</span> private HRegionLocation createRegionForReopen(RegionStateNode node) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> node.lock();<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> try {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> if (!include(node, false)) {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> return null;<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> if (node.isInState(State.OPEN)) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return new HRegionLocation(node.getRegionInfo(), node.getRegionLocation(),<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> node.getOpenSeqNum());<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> } else if (node.isInState(State.OPENING)) {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> return new HRegionLocation(node.getRegionInfo(), node.getRegionLocation(), -1);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> } else {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> return null;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> } finally {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> node.unlock();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> /**<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> * Get the regions to be reopened when modifying a table.<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * <p/><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * Notice that the {@code openSeqNum} in the returned HRegionLocation is also used to indicate the<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> * state of this region, positive means the region is in {@link State#OPEN}, -1 means<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * {@link State#OPENING}. And for regions in other states we do not need reopen them.<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> */<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> public List<HRegionLocation> getRegionsOfTableForReopen(TableName tableName) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> return getTableRegionStateNodes(tableName).stream().map(this::createRegionForReopen)<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> .filter(r -> r != null).collect(Collectors.toList());<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span><a name="line.278"></a> |
| <span class="sourceLineNo">279</span> /**<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * Check whether the region has been reopened. The meaning of the {@link HRegionLocation} is the<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * same with {@link #getRegionsOfTableForReopen(TableName)}.<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> * <p/><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> * For a region which is in {@link State#OPEN} before, if the region state is changed or the open<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * seq num is changed, we can confirm that it has been reopened.<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * <p/><a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * For a region which is in {@link State#OPENING} before, usually it will be in {@link State#OPEN}<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * now and we will schedule a MRP to reopen it. But there are several exceptions:<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * <ul><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * <li>The region is in state other than {@link State#OPEN} or {@link State#OPENING}.</li><a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * <li>The location of the region has been changed</li><a name="line.290"></a> |
| <span class="sourceLineNo">291</span> * </ul><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> * Of course the region could still be in {@link State#OPENING} state and still on the same<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * server, then here we will still return a {@link HRegionLocation} for it, just like<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * {@link #getRegionsOfTableForReopen(TableName)}.<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> * @param oldLoc the previous state/location of this region<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> * @return null if the region has been reopened, otherwise a new {@link HRegionLocation} which<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> * means we still need to reopen the region.<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> * @see #getRegionsOfTableForReopen(TableName)<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> */<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> public HRegionLocation checkReopened(HRegionLocation oldLoc) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> RegionStateNode node = getRegionStateNode(oldLoc.getRegion());<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> // HBASE-20921<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> // if the oldLoc's state node does not exist, that means the region is<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // merged or split, no need to check it<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> if (node == null) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> return null;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> node.lock();<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> try {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> if (oldLoc.getSeqNum() >= 0) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> // in OPEN state before<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (node.isInState(State.OPEN)) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> if (node.getOpenSeqNum() > oldLoc.getSeqNum()) {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> // normal case, the region has been reopened<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> return null;<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> } else {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> // the open seq num does not change, need to reopen again<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> return new HRegionLocation(node.getRegionInfo(), node.getRegionLocation(),<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> node.getOpenSeqNum());<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> } else {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> // the state has been changed so we can make sure that the region has been reopened(not<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> // finished maybe, but not a problem).<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> return null;<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> } else {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // in OPENING state before<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> if (!node.isInState(State.OPEN, State.OPENING)) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // not in OPEN or OPENING state, then we can make sure that the region has been<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> // reopened(not finished maybe, but not a problem)<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> return null;<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> } else {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> if (!node.getRegionLocation().equals(oldLoc.getServerName())) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> // the region has been moved, so we can make sure that the region has been reopened.<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> return null;<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> // normal case, we are still in OPENING state, or the reopen has been opened and the state<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> // is changed to OPEN.<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> long openSeqNum = node.isInState(State.OPEN) ? node.getOpenSeqNum() : -1;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> return new HRegionLocation(node.getRegionInfo(), node.getRegionLocation(), openSeqNum);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> } finally {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> node.unlock();<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span><a name="line.347"></a> |
| <span class="sourceLineNo">348</span> /**<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * Get the regions for enabling a table.<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> * <p/><a name="line.350"></a> |
| <span class="sourceLineNo">351</span> * Here we want the EnableTableProcedure to be more robust and can be used to fix some nasty<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * states, so the checks in this method will be a bit strange. In general, a region can only be<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * offline when it is split, for merging we will just delete the parent regions, but with HBCK we<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * may force update the state of a region to fix some nasty bugs, so in this method we will try to<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> * bring the offline regions back if it is not split. That's why we only check for split state<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * here.<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> */<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> public List<RegionInfo> getRegionsOfTableForEnabling(TableName table) {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> return getRegionsOfTable(table,<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> regionNode -> !regionNode.isInState(State.SPLIT) && !regionNode.getRegionInfo().isSplit());<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> /**<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * Get the regions for deleting a table.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> * <p/><a name="line.365"></a> |
| <span class="sourceLineNo">366</span> * Here we need to return all the regions irrespective of the states in order to archive them all.<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> * This is because if we don't archive OFFLINE/SPLIT regions and if a snapshot or a cloned table<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> * references to the regions, we will lose the data of the regions.<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> */<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> public List<RegionInfo> getRegionsOfTableForDeleting(TableName table) {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> return getTableRegionStateNodes(table).stream().map(RegionStateNode::getRegionInfo)<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> .collect(Collectors.toList());<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span><a name="line.374"></a> |
| <span class="sourceLineNo">375</span> /** Returns Return the regions of the table and filter them. */<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> private List<RegionInfo> getRegionsOfTable(TableName table, Predicate<RegionStateNode> filter) {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> return getTableRegionStateNodes(table).stream().filter(filter).map(n -> n.getRegionInfo())<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> .collect(Collectors.toList());<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> }<a name="line.379"></a> |
| <span class="sourceLineNo">380</span><a name="line.380"></a> |
| <span class="sourceLineNo">381</span> /**<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * Utility. Whether to include region in list of regions. Default is to weed out split and offline<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> * regions.<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> * @return True if we should include the <code>node</code> (do not include if split or offline<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> * unless <code>offline</code> is set to true.<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> */<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> private boolean include(final RegionStateNode node, final boolean offline) {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> if (LOG.isTraceEnabled()) {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> LOG.trace("WORKING ON " + node + " " + node.getRegionInfo());<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> final RegionInfo hri = node.getRegionInfo();<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> if (node.isInState(State.SPLIT) || hri.isSplit()) {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> return false;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> if ((node.isInState(State.OFFLINE) || hri.isOffline()) && !offline) {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> return false;<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> }<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> return (!hri.isOffline() && !hri.isSplit()) || ((hri.isOffline() || hri.isSplit()) && offline);<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span><a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // ============================================================================================<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // Split helpers<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> // These methods will only be called in ServerCrashProcedure, and at the end of SCP we will remove<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> // the ServerStateNode by calling removeServer.<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> // ============================================================================================<a name="line.405"></a> |
| <span class="sourceLineNo">406</span><a name="line.406"></a> |
| <span class="sourceLineNo">407</span> private void setServerState(ServerName serverName, ServerState state) {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> ServerStateNode serverNode = getServerNode(serverName);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> synchronized (serverNode) {<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> serverNode.setState(state);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> }<a name="line.412"></a> |
| <span class="sourceLineNo">413</span><a name="line.413"></a> |
| <span class="sourceLineNo">414</span> /**<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> * Call this when we start meta log splitting a crashed Server.<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> * @see #metaLogSplit(ServerName)<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> */<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> public void metaLogSplitting(ServerName serverName) {<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> setServerState(serverName, ServerState.SPLITTING_META);<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> /**<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> * Called after we've split the meta logs on a crashed Server.<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> * @see #metaLogSplitting(ServerName)<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> */<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> public void metaLogSplit(ServerName serverName) {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> setServerState(serverName, ServerState.SPLITTING_META_DONE);<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> }<a name="line.428"></a> |
| <span class="sourceLineNo">429</span><a name="line.429"></a> |
| <span class="sourceLineNo">430</span> /**<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> * Call this when we start log splitting for a crashed Server.<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> * @see #logSplit(ServerName)<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> */<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> public void logSplitting(final ServerName serverName) {<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> setServerState(serverName, ServerState.SPLITTING);<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> }<a name="line.436"></a> |
| <span class="sourceLineNo">437</span><a name="line.437"></a> |
| <span class="sourceLineNo">438</span> /**<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> * Called after we've split all logs on a crashed Server.<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> * @see #logSplitting(ServerName)<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> */<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> public void logSplit(final ServerName serverName) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> setServerState(serverName, ServerState.OFFLINE);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> }<a name="line.444"></a> |
| <span class="sourceLineNo">445</span><a name="line.445"></a> |
| <span class="sourceLineNo">446</span> public void updateRegionState(RegionInfo regionInfo, State state) {<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> RegionStateNode regionNode = getOrCreateRegionStateNode(regionInfo);<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> regionNode.lock();<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> try {<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> regionNode.setState(state);<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> } finally {<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> regionNode.unlock();<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> }<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> // ============================================================================================<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> // TODO:<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> // ============================================================================================<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> public List<RegionInfo> getAssignedRegions() {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> final List<RegionInfo> result = new ArrayList<RegionInfo>();<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> if (!node.isInTransition()) {<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> result.add(node.getRegionInfo());<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> }<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> }<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> return result;<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span><a name="line.468"></a> |
| <span class="sourceLineNo">469</span> public boolean isRegionInState(RegionInfo regionInfo, State... state) {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> RegionStateNode regionNode = getRegionStateNode(regionInfo);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> if (regionNode != null) {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> regionNode.lock();<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> try {<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> return regionNode.isInState(state);<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> } finally {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> regionNode.unlock();<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> }<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> return false;<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> }<a name="line.480"></a> |
| <span class="sourceLineNo">481</span><a name="line.481"></a> |
| <span class="sourceLineNo">482</span> public boolean isRegionOnline(final RegionInfo regionInfo) {<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> return isRegionInState(regionInfo, State.OPEN);<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> }<a name="line.484"></a> |
| <span class="sourceLineNo">485</span><a name="line.485"></a> |
| <span class="sourceLineNo">486</span> /** Returns True if region is offline (In OFFLINE or CLOSED state). */<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> public boolean isRegionOffline(final RegionInfo regionInfo) {<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> return isRegionInState(regionInfo, State.OFFLINE, State.CLOSED);<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> }<a name="line.489"></a> |
| <span class="sourceLineNo">490</span><a name="line.490"></a> |
| <span class="sourceLineNo">491</span> public Map<ServerName, List<RegionInfo>><a name="line.491"></a> |
| <span class="sourceLineNo">492</span> getSnapShotOfAssignment(final Collection<RegionInfo> regions) {<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> final Map<ServerName, List<RegionInfo>> result = new HashMap<ServerName, List<RegionInfo>>();<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> if (regions != null) {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> for (RegionInfo hri : regions) {<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> final RegionStateNode node = getRegionStateNode(hri);<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> if (node == null) {<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> continue;<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> }<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> createSnapshot(node, result);<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> }<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> } else {<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> if (node == null) {<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> continue;<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> }<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> createSnapshot(node, result);<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> }<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> return result;<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> }<a name="line.511"></a> |
| <span class="sourceLineNo">512</span><a name="line.512"></a> |
| <span class="sourceLineNo">513</span> private void createSnapshot(RegionStateNode node, Map<ServerName, List<RegionInfo>> result) {<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> final ServerName serverName = node.getRegionLocation();<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> if (serverName == null) {<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> return;<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> }<a name="line.517"></a> |
| <span class="sourceLineNo">518</span><a name="line.518"></a> |
| <span class="sourceLineNo">519</span> List<RegionInfo> serverRegions = result.get(serverName);<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> if (serverRegions == null) {<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> serverRegions = new ArrayList<RegionInfo>();<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> result.put(serverName, serverRegions);<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> }<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> serverRegions.add(node.getRegionInfo());<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> }<a name="line.525"></a> |
| <span class="sourceLineNo">526</span><a name="line.526"></a> |
| <span class="sourceLineNo">527</span> public Map<RegionInfo, ServerName> getRegionAssignments() {<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> final HashMap<RegionInfo, ServerName> assignments = new HashMap<RegionInfo, ServerName>();<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> assignments.put(node.getRegionInfo(), node.getRegionLocation());<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> }<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> return assignments;<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> }<a name="line.533"></a> |
| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> public Map<RegionState.State, List<RegionInfo>> getRegionByStateOfTable(TableName tableName) {<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> final State[] states = State.values();<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> final Map<RegionState.State, List<RegionInfo>> tableRegions =<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> new HashMap<State, List<RegionInfo>>(states.length);<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> for (int i = 0; i < states.length; ++i) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> tableRegions.put(states[i], new ArrayList<RegionInfo>());<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<a name="line.541"></a> |
| <span class="sourceLineNo">542</span><a name="line.542"></a> |
| <span class="sourceLineNo">543</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> if (node.getTable().equals(tableName)) {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> tableRegions.get(node.getState()).add(node.getRegionInfo());<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> }<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> }<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> return tableRegions;<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> }<a name="line.549"></a> |
| <span class="sourceLineNo">550</span><a name="line.550"></a> |
| <span class="sourceLineNo">551</span> public ServerName getRegionServerOfRegion(RegionInfo regionInfo) {<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> RegionStateNode regionNode = getRegionStateNode(regionInfo);<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> if (regionNode != null) {<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> regionNode.lock();<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> try {<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> ServerName server = regionNode.getRegionLocation();<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> return server != null ? server : regionNode.getLastHost();<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> } finally {<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> regionNode.unlock();<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> }<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> }<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> return null;<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> }<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> /**<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> * This is an EXPENSIVE clone. Cloning though is the safest thing to do. Can't let out original<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> * since it can change and at least the load balancer wants to iterate this exported list. We need<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> * to synchronize on regions since all access to this.servers is under a lock on this.regions.<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> * @return A clone of current open or opening assignments.<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> */<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> public Map<TableName, Map<ServerName, List<RegionInfo>>><a name="line.571"></a> |
| <span class="sourceLineNo">572</span> getAssignmentsForBalancer(TableStateManager tableStateManager, List<ServerName> onlineServers) {<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> final Map<TableName, Map<ServerName, List<RegionInfo>>> result = new HashMap<>();<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> // DisableTableProcedure first sets the table state to DISABLED and then force unassigns<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> // the regions in a loop. The balancer should ignore all regions for tables in DISABLED<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> // state because even if still currently open we expect them to be offlined very soon.<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> if (isTableDisabled(tableStateManager, node.getTable())) {<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> if (LOG.isTraceEnabled()) {<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> LOG.trace("Ignoring {} because table is disabled", node);<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> }<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> continue;<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> }<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> // When balancing, we are only interested in OPEN or OPENING regions. These can be<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> // expected to remain online until the next balancer iteration or unless the balancer<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> // decides to move it. Regions in other states are not eligible for balancing, because<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> // they are closing, splitting, merging, or otherwise already in transition.<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> if (!node.isInState(State.OPEN, State.OPENING)) {<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> if (LOG.isTraceEnabled()) {<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> LOG.trace("Ignoring {} because region is not OPEN or OPENING", node);<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> }<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> continue;<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> }<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> Map<ServerName, List<RegionInfo>> tableResult =<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> result.computeIfAbsent(node.getTable(), t -> new HashMap<>());<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> final ServerName serverName = node.getRegionLocation();<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> // A region in ONLINE or OPENING state should have a location.<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> if (serverName == null) {<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> LOG.warn("Skipping, no server for {}", node);<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> continue;<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> }<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> List<RegionInfo> serverResult =<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> tableResult.computeIfAbsent(serverName, s -> new ArrayList<>());<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> serverResult.add(node.getRegionInfo());<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> // Add online servers with no assignment for the table.<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> for (Map<ServerName, List<RegionInfo>> table : result.values()) {<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> for (ServerName serverName : onlineServers) {<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> table.computeIfAbsent(serverName, key -> new ArrayList<>());<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> }<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> }<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> return result;<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> }<a name="line.613"></a> |
| <span class="sourceLineNo">614</span><a name="line.614"></a> |
| <span class="sourceLineNo">615</span> private boolean isTableDisabled(final TableStateManager tableStateManager,<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> final TableName tableName) {<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> return tableStateManager.isTableState(tableName, TableState.State.DISABLED,<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> TableState.State.DISABLING);<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> }<a name="line.619"></a> |
| <span class="sourceLineNo">620</span><a name="line.620"></a> |
| <span class="sourceLineNo">621</span> // ==========================================================================<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> // Region in transition helpers<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> // ==========================================================================<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> public boolean hasRegionsInTransition() {<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> return !regionInTransition.isEmpty();<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> }<a name="line.626"></a> |
| <span class="sourceLineNo">627</span><a name="line.627"></a> |
| <span class="sourceLineNo">628</span> public boolean isRegionInTransition(final RegionInfo regionInfo) {<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> final RegionStateNode node = regionInTransition.get(regionInfo);<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> return node != null ? node.isInTransition() : false;<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> }<a name="line.631"></a> |
| <span class="sourceLineNo">632</span><a name="line.632"></a> |
| <span class="sourceLineNo">633</span> public RegionState getRegionTransitionState(RegionInfo hri) {<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> RegionStateNode node = regionInTransition.get(hri);<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> if (node == null) {<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> return null;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> }<a name="line.637"></a> |
| <span class="sourceLineNo">638</span><a name="line.638"></a> |
| <span class="sourceLineNo">639</span> node.lock();<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> try {<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> return node.isInTransition() ? node.toRegionState() : null;<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> } finally {<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> node.unlock();<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> }<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> }<a name="line.645"></a> |
| <span class="sourceLineNo">646</span><a name="line.646"></a> |
| <span class="sourceLineNo">647</span> public List<RegionStateNode> getRegionsInTransition() {<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> return new ArrayList<RegionStateNode>(regionInTransition.values());<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> }<a name="line.649"></a> |
| <span class="sourceLineNo">650</span><a name="line.650"></a> |
| <span class="sourceLineNo">651</span> /**<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> * Get the number of regions in transition.<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> */<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> public int getRegionsInTransitionCount() {<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> return regionInTransition.size();<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> }<a name="line.656"></a> |
| <span class="sourceLineNo">657</span><a name="line.657"></a> |
| <span class="sourceLineNo">658</span> public List<RegionState> getRegionsStateInTransition() {<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> final List<RegionState> rit = new ArrayList<RegionState>(regionInTransition.size());<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> for (RegionStateNode node : regionInTransition.values()) {<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> rit.add(node.toRegionState());<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> }<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> return rit;<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> }<a name="line.664"></a> |
| <span class="sourceLineNo">665</span><a name="line.665"></a> |
| <span class="sourceLineNo">666</span> public SortedSet<RegionState> getRegionsInTransitionOrderedByTimestamp() {<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> final SortedSet<RegionState> rit = new TreeSet<RegionState>(REGION_STATE_STAMP_COMPARATOR);<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> for (RegionStateNode node : regionInTransition.values()) {<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> rit.add(node.toRegionState());<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> }<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> return rit;<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> }<a name="line.672"></a> |
| <span class="sourceLineNo">673</span><a name="line.673"></a> |
| <span class="sourceLineNo">674</span> // ==========================================================================<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> // Region offline helpers<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> // ==========================================================================<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> // TODO: Populated when we read meta but regions never make it out of here.<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> public void addToOfflineRegions(final RegionStateNode regionNode) {<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> LOG.info("Added to offline, CURRENTLY NEVER CLEARED!!! " + regionNode);<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> regionOffline.put(regionNode.getRegionInfo(), regionNode);<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> }<a name="line.681"></a> |
| <span class="sourceLineNo">682</span><a name="line.682"></a> |
| <span class="sourceLineNo">683</span> // ==========================================================================<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> // Region FAIL_OPEN helpers<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> // ==========================================================================<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> public static final class RegionFailedOpen {<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> private final RegionStateNode regionNode;<a name="line.687"></a> |
| <span class="sourceLineNo">688</span><a name="line.688"></a> |
| <span class="sourceLineNo">689</span> private volatile Exception exception = null;<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> private AtomicInteger retries = new AtomicInteger();<a name="line.690"></a> |
| <span class="sourceLineNo">691</span><a name="line.691"></a> |
| <span class="sourceLineNo">692</span> public RegionFailedOpen(final RegionStateNode regionNode) {<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> this.regionNode = regionNode;<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> }<a name="line.694"></a> |
| <span class="sourceLineNo">695</span><a name="line.695"></a> |
| <span class="sourceLineNo">696</span> public RegionStateNode getRegionStateNode() {<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> return regionNode;<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> }<a name="line.698"></a> |
| <span class="sourceLineNo">699</span><a name="line.699"></a> |
| <span class="sourceLineNo">700</span> public RegionInfo getRegionInfo() {<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> return regionNode.getRegionInfo();<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> }<a name="line.702"></a> |
| <span class="sourceLineNo">703</span><a name="line.703"></a> |
| <span class="sourceLineNo">704</span> public int incrementAndGetRetries() {<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> return this.retries.incrementAndGet();<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span><a name="line.707"></a> |
| <span class="sourceLineNo">708</span> public int getRetries() {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> return retries.get();<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> }<a name="line.710"></a> |
| <span class="sourceLineNo">711</span><a name="line.711"></a> |
| <span class="sourceLineNo">712</span> public void setException(final Exception exception) {<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> this.exception = exception;<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> }<a name="line.714"></a> |
| <span class="sourceLineNo">715</span><a name="line.715"></a> |
| <span class="sourceLineNo">716</span> public Exception getException() {<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> return this.exception;<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> }<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> }<a name="line.719"></a> |
| <span class="sourceLineNo">720</span><a name="line.720"></a> |
| <span class="sourceLineNo">721</span> public RegionFailedOpen addToFailedOpen(final RegionStateNode regionNode) {<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> final byte[] key = regionNode.getRegionInfo().getRegionName();<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> return regionFailedOpen.computeIfAbsent(key, (k) -> new RegionFailedOpen(regionNode));<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> }<a name="line.724"></a> |
| <span class="sourceLineNo">725</span><a name="line.725"></a> |
| <span class="sourceLineNo">726</span> public RegionFailedOpen getFailedOpen(final RegionInfo regionInfo) {<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> return regionFailedOpen.get(regionInfo.getRegionName());<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> }<a name="line.728"></a> |
| <span class="sourceLineNo">729</span><a name="line.729"></a> |
| <span class="sourceLineNo">730</span> public void removeFromFailedOpen(final RegionInfo regionInfo) {<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> regionFailedOpen.remove(regionInfo.getRegionName());<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> }<a name="line.732"></a> |
| <span class="sourceLineNo">733</span><a name="line.733"></a> |
| <span class="sourceLineNo">734</span> public List<RegionState> getRegionFailedOpen() {<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> if (regionFailedOpen.isEmpty()) return Collections.emptyList();<a name="line.735"></a> |
| <span class="sourceLineNo">736</span><a name="line.736"></a> |
| <span class="sourceLineNo">737</span> ArrayList<RegionState> regions = new ArrayList<RegionState>(regionFailedOpen.size());<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> for (RegionFailedOpen r : regionFailedOpen.values()) {<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> regions.add(r.getRegionStateNode().toRegionState());<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> }<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> return regions;<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> }<a name="line.742"></a> |
| <span class="sourceLineNo">743</span><a name="line.743"></a> |
| <span class="sourceLineNo">744</span> // ==========================================================================<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> // Servers<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> // ==========================================================================<a name="line.746"></a> |
| <span class="sourceLineNo">747</span><a name="line.747"></a> |
| <span class="sourceLineNo">748</span> /**<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> * Create the ServerStateNode when registering a new region server<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> */<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> public void createServer(ServerName serverName) {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> serverMap.computeIfAbsent(serverName, key -> new ServerStateNode(key));<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> }<a name="line.753"></a> |
| <span class="sourceLineNo">754</span><a name="line.754"></a> |
| <span class="sourceLineNo">755</span> /**<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> * Called by SCP at end of successful processing.<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> */<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> public void removeServer(ServerName serverName) {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> serverMap.remove(serverName);<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> }<a name="line.760"></a> |
| <span class="sourceLineNo">761</span><a name="line.761"></a> |
| <span class="sourceLineNo">762</span> /** Returns Pertinent ServerStateNode or NULL if none found (Do not make modifications). */<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> public ServerStateNode getServerNode(final ServerName serverName) {<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> return serverMap.get(serverName);<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> }<a name="line.765"></a> |
| <span class="sourceLineNo">766</span><a name="line.766"></a> |
| <span class="sourceLineNo">767</span> public double getAverageLoad() {<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> int numServers = 0;<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> int totalLoad = 0;<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> for (ServerStateNode node : serverMap.values()) {<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> totalLoad += node.getRegionCount();<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> numServers++;<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> }<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> return numServers == 0 ? 0.0 : (double) totalLoad / (double) numServers;<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> }<a name="line.775"></a> |
| <span class="sourceLineNo">776</span><a name="line.776"></a> |
| <span class="sourceLineNo">777</span> public void addRegionToServer(final RegionStateNode regionNode) {<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> ServerStateNode serverNode = getServerNode(regionNode.getRegionLocation());<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> serverNode.addRegion(regionNode);<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> }<a name="line.780"></a> |
| <span class="sourceLineNo">781</span><a name="line.781"></a> |
| <span class="sourceLineNo">782</span> public void removeRegionFromServer(final ServerName serverName,<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> final RegionStateNode regionNode) {<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> ServerStateNode serverNode = getServerNode(serverName);<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> // here the server node could be null. For example, if there is already a TRSP for a region and<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> // at the same time, the target server is crashed and there is a SCP. The SCP will interrupt the<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> // TRSP and the TRSP will first set the region as abnormally closed and remove it from the<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> // server node. But here, this TRSP is not a child procedure of the SCP, so it is possible that<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> // the SCP finishes, thus removes the server node for this region server, before the TRSP wakes<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> // up and enter here to remove the region node from the server node, then we will get a null<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> // server node here.<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> if (serverNode != null) {<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> serverNode.removeRegion(regionNode);<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> }<a name="line.795"></a> |
| <span class="sourceLineNo">796</span><a name="line.796"></a> |
| <span class="sourceLineNo">797</span> // ==========================================================================<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> // ToString helpers<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> // ==========================================================================<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> public static String regionNamesToString(final Collection<byte[]> regions) {<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> final StringBuilder sb = new StringBuilder();<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> final Iterator<byte[]> it = regions.iterator();<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> sb.append("[");<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> if (it.hasNext()) {<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> sb.append(Bytes.toStringBinary(it.next()));<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> while (it.hasNext()) {<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> sb.append(", ");<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> sb.append(Bytes.toStringBinary(it.next()));<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> }<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> }<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> sb.append("]");<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> return sb.toString();<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> }<a name="line.813"></a> |
| <span class="sourceLineNo">814</span>}<a name="line.814"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
