| <!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.backup.mapreduce;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.backup.util.BackupUtils.succeeded;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.InputStream;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.OutputStream;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.ArrayDeque;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.ArrayList;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Deque;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.HashSet;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Set;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.commons.io.IOUtils;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.commons.lang3.StringUtils;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.conf.Configuration;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.fs.FileStatus;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.fs.FileSystem;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.fs.LocatedFileStatus;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.fs.Path;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.fs.RemoteIterator;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.TableName;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.backup.BackupInfo;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.backup.BackupMergeJob;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.backup.HBackupFileSystem;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.backup.impl.BackupManifest;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.backup.util.BackupUtils;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.FSTableDescriptors;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.util.Tool;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.slf4j.Logger;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.slf4j.LoggerFactory;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span>/**<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * MapReduce implementation of {@link BackupMergeJob} Must be initialized with configuration of a<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * backup destination cluster<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>@InterfaceAudience.Private<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>public class MapReduceBackupMergeJob implements BackupMergeJob {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final Logger LOG = LoggerFactory.getLogger(MapReduceBackupMergeJob.class);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> protected Tool player;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> protected Configuration conf;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> public MapReduceBackupMergeJob() {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> @Override<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public Configuration getConf() {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> return conf;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> @Override<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public void setConf(Configuration conf) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> this.conf = conf;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> @Override<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> public void run(String[] backupIds) throws IOException {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> String bulkOutputConfKey;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> // TODO : run player on remote cluster<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> player = new MapReduceHFileSplitterJob();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> bulkOutputConfKey = MapReduceHFileSplitterJob.BULK_OUTPUT_CONF_KEY;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> // Player reads all files in arbitrary directory structure and creates<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // a Map task for each file<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> String bids = StringUtils.join(backupIds, ",");<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (LOG.isDebugEnabled()) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> LOG.debug("Merge backup images " + bids);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> List<Pair<TableName, Path>> processedTableList = new ArrayList<>();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> boolean finishedTables = false;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> Connection conn = ConnectionFactory.createConnection(getConf());<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> BackupSystemTable table = new BackupSystemTable(conn);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> FileSystem fs = FileSystem.get(getConf());<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> try {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span><a name="line.102"></a> |
| <span class="sourceLineNo">103</span> // Get exclusive lock on backup system<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> table.startBackupExclusiveOperation();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // Start merge operation<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> table.startMergeOperation(backupIds);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // Select most recent backup id<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> String mergedBackupId = BackupUtils.findMostRecentBackupId(backupIds);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> TableName[] tableNames = getTableNamesInBackupImages(backupIds);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> BackupInfo bInfo = table.readBackupInfo(backupIds[0]);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> String backupRoot = bInfo.getBackupRootDir();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> for (int i = 0; i < tableNames.length; i++) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> LOG.info("Merge backup images for " + tableNames[i]);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> // Find input directories for table<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> Path[] dirPaths = findInputDirectories(fs, backupRoot, tableNames[i], backupIds);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> String dirs = StringUtils.join(dirPaths, ",");<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> Path bulkOutputPath = BackupUtils.getBulkOutputDir(<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> BackupUtils.getFileNameCompatibleString(tableNames[i]), getConf(), false);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // Delete content if exists<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> if (fs.exists(bulkOutputPath)) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> if (!fs.delete(bulkOutputPath, true)) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> LOG.warn("Can not delete: " + bulkOutputPath);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> }<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> Configuration conf = getConf();<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> conf.set(bulkOutputConfKey, bulkOutputPath.toString());<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> String[] playerArgs = { dirs, tableNames[i].getNameAsString() };<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> player.setConf(getConf());<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> int result = player.run(playerArgs);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> if (!succeeded(result)) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> throw new IOException("Can not merge backup images for " + dirs<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> + " (check Hadoop/MR and HBase logs). Player return code =" + result);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> }<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> // Add to processed table list<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> processedTableList.add(new Pair<>(tableNames[i], bulkOutputPath));<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> LOG.debug("Merge Job finished:" + result);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> List<TableName> tableList = toTableNameList(processedTableList);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> table.updateProcessedTablesForMerge(tableList);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> finishedTables = true;<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> // PHASE 2 (modification of a backup file system)<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> // Move existing mergedBackupId data into tmp directory<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // we will need it later in case of a failure<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> Path tmpBackupDir =<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> HBackupFileSystem.getBackupTmpDirPathForBackupId(backupRoot, mergedBackupId);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> Path backupDirPath = HBackupFileSystem.getBackupPath(backupRoot, mergedBackupId);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> if (!fs.rename(backupDirPath, tmpBackupDir)) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> throw new IOException("Failed to rename " + backupDirPath + " to " + tmpBackupDir);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> } else {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> LOG.debug("Renamed " + backupDirPath + " to " + tmpBackupDir);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // Move new data into backup dest<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> for (Pair<TableName, Path> tn : processedTableList) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> moveData(fs, backupRoot, tn.getSecond(), tn.getFirst(), mergedBackupId);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // Update backup manifest<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> List<String> backupsToDelete = getBackupIdsToDelete(backupIds, mergedBackupId);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> updateBackupManifest(tmpBackupDir.getParent().toString(), mergedBackupId, backupsToDelete);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> // Copy meta files back from tmp to backup dir<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> copyMetaData(fs, tmpBackupDir, backupDirPath);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> // Delete tmp dir (Rename back during repair)<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> if (!fs.delete(tmpBackupDir, true)) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> // WARN and ignore<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> LOG.warn("Could not delete tmp dir: " + tmpBackupDir);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> // Delete old data<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> deleteBackupImages(backupsToDelete, conn, fs, backupRoot);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> // Finish merge session<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> table.finishMergeOperation();<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // Release lock<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> table.finishBackupExclusiveOperation();<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> } catch (RuntimeException e) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> throw e;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> } catch (Exception e) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> LOG.error(e.toString(), e);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> if (!finishedTables) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // cleanup bulk directories and finish merge<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> // merge MUST be repeated (no need for repair)<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> cleanupBulkLoadDirs(fs, toPathList(processedTableList));<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> table.finishMergeOperation();<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> table.finishBackupExclusiveOperation();<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> throw new IOException("Backup merge operation failed, you should try it again", e);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> } else {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // backup repair must be run<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> throw new IOException(<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> "Backup merge operation failed, run backup repair tool to restore system's integrity", e);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> } finally {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> table.close();<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> conn.close();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<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> /**<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * Copy meta data to of a backup session<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @param fs file system<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> * @param tmpBackupDir temp backup directory, where meta is locaed<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> * @param backupDirPath new path for backup<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> * @throws IOException exception<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> */<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> protected void copyMetaData(FileSystem fs, Path tmpBackupDir, Path backupDirPath)<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> throws IOException {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> RemoteIterator<LocatedFileStatus> it = fs.listFiles(tmpBackupDir, true);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> List<Path> toKeep = new ArrayList<Path>();<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> while (it.hasNext()) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> Path p = it.next().getPath();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (fs.isDirectory(p)) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> continue;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // Keep meta<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> String fileName = p.toString();<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> fileName.indexOf(FSTableDescriptors.TABLEINFO_DIR) > 0<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> || fileName.indexOf(HRegionFileSystem.REGION_INFO_FILE) > 0<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> ) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> toKeep.add(p);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> // Copy meta to destination<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> for (Path p : toKeep) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> Path newPath = convertToDest(p, backupDirPath);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> copyFile(fs, p, newPath);<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><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> /**<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> * Copy file in DFS from p to newPath<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> * @param fs file system<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> * @param p old path<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> * @param newPath new path<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> * @throws IOException exception<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> */<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> protected void copyFile(FileSystem fs, Path p, Path newPath) throws IOException {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> try (InputStream in = fs.open(p); OutputStream out = fs.create(newPath, true)) {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> IOUtils.copy(in, out);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> }<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> boolean exists = fs.exists(newPath);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> if (!exists) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> throw new IOException("Failed to copy meta file to: " + newPath);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> /**<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * Converts path before copying<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * @param p path<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param backupDirPath backup root<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @return converted path<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> */<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> protected Path convertToDest(Path p, Path backupDirPath) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> String backupId = backupDirPath.getName();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> Deque<String> stack = new ArrayDeque<String>();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> String name = null;<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> while (true) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> name = p.getName();<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> if (!name.equals(backupId)) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> stack.push(name);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> p = p.getParent();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> } else {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> break;<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> Path newPath = new Path(backupDirPath.toString());<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> while (!stack.isEmpty()) {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> newPath = new Path(newPath, stack.pop());<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> return newPath;<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> protected List<Path> toPathList(List<Pair<TableName, Path>> processedTableList) {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> ArrayList<Path> list = new ArrayList<>();<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> for (Pair<TableName, Path> p : processedTableList) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> list.add(p.getSecond());<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> return list;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span><a name="line.286"></a> |
| <span class="sourceLineNo">287</span> protected List<TableName> toTableNameList(List<Pair<TableName, Path>> processedTableList) {<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> ArrayList<TableName> list = new ArrayList<>();<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> for (Pair<TableName, Path> p : processedTableList) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> list.add(p.getFirst());<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> return list;<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> protected void cleanupBulkLoadDirs(FileSystem fs, List<Path> pathList) throws IOException {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> for (Path path : pathList) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (!fs.delete(path, true)) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> LOG.warn("Can't delete " + path);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> protected void updateBackupManifest(String backupRoot, String mergedBackupId,<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> List<String> backupsToDelete) throws IllegalArgumentException, IOException {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> BackupManifest manifest =<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> HBackupFileSystem.getManifest(conf, new Path(backupRoot), mergedBackupId);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> manifest.getBackupImage().removeAncestors(backupsToDelete);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> // save back<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> manifest.store(conf);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span><a name="line.311"></a> |
| <span class="sourceLineNo">312</span> protected void deleteBackupImages(List<String> backupIds, Connection conn, FileSystem fs,<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> String backupRoot) throws IOException {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> // Delete from backup system table<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> try (BackupSystemTable table = new BackupSystemTable(conn)) {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> for (String backupId : backupIds) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> table.deleteBackupInfo(backupId);<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> // Delete from file system<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> for (String backupId : backupIds) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> Path backupDirPath = HBackupFileSystem.getBackupPath(backupRoot, backupId);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> if (!fs.delete(backupDirPath, true)) {<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> LOG.warn("Could not delete " + backupDirPath);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> }<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> }<a name="line.329"></a> |
| <span class="sourceLineNo">330</span><a name="line.330"></a> |
| <span class="sourceLineNo">331</span> protected List<String> getBackupIdsToDelete(String[] backupIds, String mergedBackupId) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> List<String> list = new ArrayList<>();<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> for (String id : backupIds) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> if (id.equals(mergedBackupId)) {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> continue;<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> list.add(id);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> return list;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span><a name="line.341"></a> |
| <span class="sourceLineNo">342</span> protected void moveData(FileSystem fs, String backupRoot, Path bulkOutputPath,<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> TableName tableName, String mergedBackupId) throws IllegalArgumentException, IOException {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> Path dest =<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> new Path(HBackupFileSystem.getTableBackupDir(backupRoot, mergedBackupId, tableName));<a name="line.345"></a> |
| <span class="sourceLineNo">346</span><a name="line.346"></a> |
| <span class="sourceLineNo">347</span> FileStatus[] fsts = fs.listStatus(bulkOutputPath);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> for (FileStatus fst : fsts) {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> if (fst.isDirectory()) {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> String family = fst.getPath().getName();<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> Path newDst = new Path(dest, family);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> if (fs.exists(newDst)) {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> if (!fs.delete(newDst, true)) {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> throw new IOException("failed to delete :" + newDst);<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> } else {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> fs.mkdirs(dest);<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> boolean result = fs.rename(fst.getPath(), dest);<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> LOG.debug("MoveData from " + fst.getPath() + " to " + dest + " result=" + result);<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><a name="line.364"></a> |
| <span class="sourceLineNo">365</span> protected TableName[] getTableNamesInBackupImages(String[] backupIds) throws IOException {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> Set<TableName> allSet = new HashSet<>();<a name="line.366"></a> |
| <span class="sourceLineNo">367</span><a name="line.367"></a> |
| <span class="sourceLineNo">368</span> try (Connection conn = ConnectionFactory.createConnection(conf);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> BackupSystemTable table = new BackupSystemTable(conn)) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> for (String backupId : backupIds) {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> BackupInfo bInfo = table.readBackupInfo(backupId);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span><a name="line.372"></a> |
| <span class="sourceLineNo">373</span> allSet.addAll(bInfo.getTableNames());<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> }<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> }<a name="line.375"></a> |
| <span class="sourceLineNo">376</span><a name="line.376"></a> |
| <span class="sourceLineNo">377</span> TableName[] ret = new TableName[allSet.size()];<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> return allSet.toArray(ret);<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> protected Path[] findInputDirectories(FileSystem fs, String backupRoot, TableName tableName,<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> String[] backupIds) throws IOException {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> List<Path> dirs = new ArrayList<>();<a name="line.383"></a> |
| <span class="sourceLineNo">384</span><a name="line.384"></a> |
| <span class="sourceLineNo">385</span> for (String backupId : backupIds) {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> Path fileBackupDirPath =<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> new Path(HBackupFileSystem.getTableBackupDir(backupRoot, backupId, tableName));<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> if (fs.exists(fileBackupDirPath)) {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> dirs.add(fileBackupDirPath);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> } else {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> if (LOG.isDebugEnabled()) {<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> LOG.debug("File: " + fileBackupDirPath + " does not exist.");<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> }<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> }<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> Path[] ret = new Path[dirs.size()];<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> return dirs.toArray(ret);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> }<a name="line.398"></a> |
| <span class="sourceLineNo">399</span>}<a name="line.399"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
