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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 java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.HashMap;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.HashSet;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.LinkedList;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Map;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Set;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.locks.ReentrantReadWriteLock;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.FileSystem;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.fs.Path;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.CatalogFamilyFormat;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.ScheduledChore;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.ServerName;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.HbckRegionInfo;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.slf4j.Logger;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.slf4j.LoggerFactory;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span>/**<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * Used to do the hbck checking job at master side.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>@InterfaceAudience.Private<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@InterfaceStability.Evolving<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class HbckChore extends ScheduledChore {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private static final Logger LOG = LoggerFactory.getLogger(HbckChore.class.getName());<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private static final String HBCK_CHORE_INTERVAL = "hbase.master.hbck.chore.interval";<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private static final int DEFAULT_HBCK_CHORE_INTERVAL = 60 * 60 * 1000;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private final MasterServices master;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> /**<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * This map contains the state of all hbck items. It maps from encoded region<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * name to HbckRegionInfo structure. The information contained in HbckRegionInfo is used<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * to detect and correct consistency (hdfs/meta/deployment) problems.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private final Map<String, HbckRegionInfo> regionInfoMap = new HashMap<>();<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private final Set<String> disabledTableRegions = new HashSet<>();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private final Set<String> splitParentRegions = new HashSet<>();<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> /**<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * The regions only opened on RegionServers, but no region info in meta.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private final Map<String, ServerName> orphanRegionsOnRS = new HashMap<>();<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> /**<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * The regions have directory on FileSystem, but no region info in meta.<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private final Map<String, Path> orphanRegionsOnFS = new HashMap<>();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> /**<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * The inconsistent regions. There are three case:<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * case 1. Master thought this region opened, but no regionserver reported it.<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * case 2. Master thought this region opened on Server1, but regionserver reported Server2<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * case 3. More than one regionservers reported opened this region<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private final Map<String, Pair<ServerName, List<ServerName>>> inconsistentRegions =<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> new HashMap<>();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> /**<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * The "snapshot" is used to save the last round's HBCK checking report.<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> */<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private final Map<String, ServerName> orphanRegionsOnRSSnapshot = new HashMap<>();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private final Map<String, Path> orphanRegionsOnFSSnapshot = new HashMap<>();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> private final Map<String, Pair<ServerName, List<ServerName>>> inconsistentRegionsSnapshot =<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> new HashMap<>();<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> /**<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * The "snapshot" may be changed after checking. And this checking report "snapshot" may be<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * accessed by web ui. Use this rwLock to synchronize.<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> */<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> ReentrantReadWriteLock rwLock = new ReentrantReadWriteLock();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> /**<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * When running, the "snapshot" may be changed when this round's checking finish.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> private volatile boolean running = false;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> private volatile long checkingStartTimestamp = 0;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> private volatile long checkingEndTimestamp = 0;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> private boolean disabled = false;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public HbckChore(MasterServices master) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> super("HbckChore-", master,<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> master.getConfiguration().getInt(HBCK_CHORE_INTERVAL, DEFAULT_HBCK_CHORE_INTERVAL));<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> this.master = master;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> int interval =<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> master.getConfiguration().getInt(HBCK_CHORE_INTERVAL, DEFAULT_HBCK_CHORE_INTERVAL);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (interval <= 0) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> LOG.warn(HBCK_CHORE_INTERVAL + " is <=0 hence disabling hbck chore");<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> disableChore();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> @Override<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> protected synchronized void chore() {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> if (isDisabled() || isRunning()) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> LOG.warn("hbckChore is either disabled or is already running. Can't run the chore");<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> regionInfoMap.clear();<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> disabledTableRegions.clear();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> splitParentRegions.clear();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> orphanRegionsOnRS.clear();<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> orphanRegionsOnFS.clear();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> inconsistentRegions.clear();<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> checkingStartTimestamp = EnvironmentEdgeManager.currentTime();<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> running = true;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> try {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> loadRegionsFromInMemoryState();<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> loadRegionsFromRSReport();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> try {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> loadRegionsFromFS(scanForMergedParentRegions());<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> } catch (IOException e) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> LOG.warn("Failed to load the regions from filesystem", e);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> saveCheckResultToSnapshot();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> } catch (Throwable t) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> LOG.warn("Unexpected", t);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> running = false;<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> // This function does the sanity checks of making sure the chore is not run when it is<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> // disabled or when it's already running. It returns whether the chore was actually run or not.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> protected boolean runChore() {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> if (isDisabled() || isRunning()) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (isDisabled()) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> LOG.warn("hbck chore is disabled! Set " + HBCK_CHORE_INTERVAL + " > 0 to enable it.");<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> } else {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> LOG.warn("hbck chore already running. Can't run till it finishes.");<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> return false;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> chore();<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> return true;<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> private void disableChore() {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> this.disabled = true;<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> public boolean isDisabled() {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> return this.disabled;<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> private void saveCheckResultToSnapshot() {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> // Need synchronized here, as this "snapshot" may be access by web ui.<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> rwLock.writeLock().lock();<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> try {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> orphanRegionsOnRSSnapshot.clear();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> orphanRegionsOnRS.entrySet()<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> .forEach(e -> orphanRegionsOnRSSnapshot.put(e.getKey(), e.getValue()));<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> orphanRegionsOnFSSnapshot.clear();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> orphanRegionsOnFS.entrySet()<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> .forEach(e -> orphanRegionsOnFSSnapshot.put(e.getKey(), e.getValue()));<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> inconsistentRegionsSnapshot.clear();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> inconsistentRegions.entrySet()<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> .forEach(e -> inconsistentRegionsSnapshot.put(e.getKey(), e.getValue()));<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> checkingEndTimestamp = EnvironmentEdgeManager.currentTime();<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> } finally {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> rwLock.writeLock().unlock();<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><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> /**<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * Scan hbase:meta to get set of merged parent regions, this is a very heavy scan.<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> *<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> * @return Return generated {@link HashSet}<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> */<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> private HashSet<String> scanForMergedParentRegions() throws IOException {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> HashSet<String> mergedParentRegions = new HashSet<>();<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> // Null tablename means scan all of meta.<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> MetaTableAccessor.scanMetaForTableRegions(this.master.getConnection(),<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> r -> {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> List<RegionInfo> mergeParents = CatalogFamilyFormat.getMergeRegions(r.rawCells());<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> if (mergeParents != null) {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> for (RegionInfo mergeRegion : mergeParents) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> if (mergeRegion != null) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> // This region is already being merged<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> mergedParentRegions.add(mergeRegion.getEncodedName());<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> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> return true;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> },<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> null);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> return mergedParentRegions;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span><a name="line.215"></a> |
| <span class="sourceLineNo">216</span> private void loadRegionsFromInMemoryState() {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> List<RegionState> regionStates =<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> master.getAssignmentManager().getRegionStates().getRegionStates();<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> for (RegionState regionState : regionStates) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> RegionInfo regionInfo = regionState.getRegion();<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> if (master.getTableStateManager()<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> .isTableState(regionInfo.getTable(), TableState.State.DISABLED)) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> disabledTableRegions.add(regionInfo.getRegionNameAsString());<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> if (regionInfo.isSplitParent()) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> splitParentRegions.add(regionInfo.getRegionNameAsString());<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> HbckRegionInfo.MetaEntry metaEntry =<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> new HbckRegionInfo.MetaEntry(regionInfo, regionState.getServerName(),<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> regionState.getStamp());<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> regionInfoMap.put(regionInfo.getEncodedName(), new HbckRegionInfo(metaEntry));<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> LOG.info("Loaded {} regions from in-memory state of AssignmentManager", regionStates.size());<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> private void loadRegionsFromRSReport() {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> int numRegions = 0;<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> Map<ServerName, Set<byte[]>> rsReports = master.getAssignmentManager().getRSReports();<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> for (Map.Entry<ServerName, Set<byte[]>> entry : rsReports.entrySet()) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> ServerName serverName = entry.getKey();<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> for (byte[] regionName : entry.getValue()) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> String encodedRegionName = RegionInfo.encodeRegionName(regionName);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> HbckRegionInfo hri = regionInfoMap.get(encodedRegionName);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> if (hri == null) {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> orphanRegionsOnRS.put(RegionInfo.getRegionNameAsString(regionName), serverName);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> continue;<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> hri.addServer(hri.getMetaEntry().getRegionInfo(), serverName);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> }<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> numRegions += entry.getValue().size();<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> LOG.info("Loaded {} regions from {} regionservers' reports and found {} orphan regions",<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> numRegions, rsReports.size(), orphanRegionsOnRS.size());<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> for (Map.Entry<String, HbckRegionInfo> entry : regionInfoMap.entrySet()) {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> HbckRegionInfo hri = entry.getValue();<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> ServerName locationInMeta = hri.getMetaEntry().getRegionServer();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (hri.getDeployedOn().size() == 0) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> if (locationInMeta == null) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> continue;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> // skip the offline region which belong to disabled table.<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (disabledTableRegions.contains(hri.getRegionNameAsString())) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> continue;<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> // skip the split parent regions<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> if (splitParentRegions.contains(hri.getRegionNameAsString())) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> continue;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> // Master thought this region opened, but no regionserver reported it.<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> inconsistentRegions.put(hri.getRegionNameAsString(),<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> new Pair<>(locationInMeta, new LinkedList<>()));<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> } else if (hri.getDeployedOn().size() > 1) {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> // More than one regionserver reported opened this region<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> inconsistentRegions.put(hri.getRegionNameAsString(),<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> new Pair<>(locationInMeta, hri.getDeployedOn()));<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> } else if (!hri.getDeployedOn().get(0).equals(locationInMeta)) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> // Master thought this region opened on Server1, but regionserver reported Server2<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> inconsistentRegions.put(hri.getRegionNameAsString(),<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> new Pair<>(locationInMeta, hri.getDeployedOn()));<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> }<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> private void loadRegionsFromFS(final HashSet<String> mergedParentRegions) throws IOException {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> Path rootDir = master.getMasterFileSystem().getRootDir();<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> FileSystem fs = master.getMasterFileSystem().getFileSystem();<a name="line.287"></a> |
| <span class="sourceLineNo">288</span><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> int numRegions = 0;<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> List<Path> tableDirs = FSUtils.getTableDirs(fs, rootDir);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> for (Path tableDir : tableDirs) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> List<Path> regionDirs = FSUtils.getRegionDirs(fs, tableDir);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> for (Path regionDir : regionDirs) {<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> String encodedRegionName = regionDir.getName();<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> if (encodedRegionName == null) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> LOG.warn("Failed get of encoded name from {}", regionDir);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> continue;<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> HbckRegionInfo hri = regionInfoMap.get(encodedRegionName);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> // If it is not in in-memory database and not a merged region,<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> // report it as an orphan region.<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> if (hri == null && !mergedParentRegions.contains(encodedRegionName)) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> orphanRegionsOnFS.put(encodedRegionName, regionDir);<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> continue;<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> numRegions += regionDirs.size();<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> }<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> LOG.info("Loaded {} tables {} regions from filesyetem and found {} orphan regions",<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> tableDirs.size(), numRegions, orphanRegionsOnFS.size());<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> |
| <span class="sourceLineNo">313</span> /**<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> * When running, the HBCK report may be changed later.<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> */<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> public boolean isRunning() {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> return running;<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span><a name="line.319"></a> |
| <span class="sourceLineNo">320</span> /**<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> * @return the regions only opened on RegionServers, but no region info in meta.<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> */<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> public Map<String, ServerName> getOrphanRegionsOnRS() {<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> // Need synchronized here, as this "snapshot" may be changed after checking.<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> rwLock.readLock().lock();<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> try {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> return this.orphanRegionsOnRSSnapshot;<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> } finally {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> rwLock.readLock().unlock();<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span><a name="line.332"></a> |
| <span class="sourceLineNo">333</span> /**<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * @return the regions have directory on FileSystem, but no region info in meta.<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> */<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> public Map<String, Path> getOrphanRegionsOnFS() {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> // Need synchronized here, as this "snapshot" may be changed after checking.<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> rwLock.readLock().lock();<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> try {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> return this.orphanRegionsOnFSSnapshot;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> } finally {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> rwLock.readLock().unlock();<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<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> * Found the inconsistent regions. There are three case:<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> * case 1. Master thought this region opened, but no regionserver reported it.<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * case 2. Master thought this region opened on Server1, but regionserver reported Server2<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> * case 3. More than one regionservers reported opened this region<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> *<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * @return the map of inconsistent regions. Key is the region name. Value is a pair of location in<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * meta and the regionservers which reported opened this region.<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> */<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> public Map<String, Pair<ServerName, List<ServerName>>> getInconsistentRegions() {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> // Need synchronized here, as this "snapshot" may be changed after checking.<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> rwLock.readLock().lock();<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> try {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> return this.inconsistentRegionsSnapshot;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> } finally {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> rwLock.readLock().unlock();<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><a name="line.364"></a> |
| <span class="sourceLineNo">365</span> /**<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> * Used for web ui to show when the HBCK checking started.<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> */<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> public long getCheckingStartTimestamp() {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> return this.checkingStartTimestamp;<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> }<a name="line.370"></a> |
| <span class="sourceLineNo">371</span><a name="line.371"></a> |
| <span class="sourceLineNo">372</span> /**<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> * Used for web ui to show when the HBCK checking report generated.<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> */<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> public long getCheckingEndTimestamp() {<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> return this.checkingEndTimestamp;<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span>}<a name="line.378"></a> |
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| </div> |
| </body> |
| </html> |
