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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.mapreduce;<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.AbstractMap;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Collection;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.UUID;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.fs.FileSystem;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.Path;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ConfigurationUtil;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.slf4j.Logger;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.LoggerFactory;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span>/**<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * Shared implementation of mapreduce code over multiple table snapshots. Utilized by both mapreduce<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * {@link org.apache.hadoop.hbase.mapreduce.MultiTableSnapshotInputFormat} and mapred<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * {@link org.apache.hadoop.hbase.mapred.MultiTableSnapshotInputFormat} implementations.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>@InterfaceAudience.LimitedPrivate({ "HBase" })<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@InterfaceStability.Evolving<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class MultiTableSnapshotInputFormatImpl {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private static final Logger LOG =<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> LoggerFactory.getLogger(MultiTableSnapshotInputFormatImpl.class);<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public static final String RESTORE_DIRS_KEY =<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> "hbase.MultiTableSnapshotInputFormat.restore.snapshotDirMapping";<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> public static final String SNAPSHOT_TO_SCANS_KEY =<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> "hbase.MultiTableSnapshotInputFormat.snapshotsToScans";<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> /**<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * Configure conf to read from snapshotScans, with snapshots restored to a subdirectory of<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * restoreDir.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * <p/><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * Sets: {@link #RESTORE_DIRS_KEY}, {@link #SNAPSHOT_TO_SCANS_KEY}<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> public void setInput(Configuration conf, Map<String, Collection<Scan>> snapshotScans,<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> Path restoreDir) throws IOException {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> Path rootDir = CommonFSUtils.getRootDir(conf);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> FileSystem fs = rootDir.getFileSystem(conf);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> setSnapshotToScans(conf, snapshotScans);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> Map<String, Path> restoreDirs =<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> generateSnapshotToRestoreDirMapping(snapshotScans.keySet(), restoreDir);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> setSnapshotDirs(conf, restoreDirs);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> restoreSnapshots(conf, restoreDirs, fs);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> }<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> /**<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * Return the list of splits extracted from the scans/snapshots pushed to conf by<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * {@link #setInput(Configuration, Map, Path)}<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * @param conf Configuration to determine splits from<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @return Return the list of splits extracted from the scans/snapshots pushed to conf<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> */<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public List<TableSnapshotInputFormatImpl.InputSplit> getSplits(Configuration conf)<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> throws IOException {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> Path rootDir = CommonFSUtils.getRootDir(conf);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> FileSystem fs = rootDir.getFileSystem(conf);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> List<TableSnapshotInputFormatImpl.InputSplit> rtn = Lists.newArrayList();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> Map<String, Collection<Scan>> snapshotsToScans = getSnapshotsToScans(conf);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> Map<String, Path> snapshotsToRestoreDirs = getSnapshotDirs(conf);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> for (Map.Entry<String, Collection<Scan>> entry : snapshotsToScans.entrySet()) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> String snapshotName = entry.getKey();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> Path restoreDir = snapshotsToRestoreDirs.get(snapshotName);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> SnapshotManifest manifest =<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> TableSnapshotInputFormatImpl.getSnapshotManifest(conf, snapshotName, rootDir, fs);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> List<RegionInfo> regionInfos =<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> TableSnapshotInputFormatImpl.getRegionInfosFromManifest(manifest);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> for (Scan scan : entry.getValue()) {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> List<TableSnapshotInputFormatImpl.InputSplit> splits =<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> TableSnapshotInputFormatImpl.getSplits(scan, manifest, regionInfos, restoreDir, conf);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> rtn.addAll(splits);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> return rtn;<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> /**<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * Retrieve the snapshot name -&gt; list&lt;scan&gt; mapping pushed to configuration by<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * {@link #setSnapshotToScans(Configuration, Map)}<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * @param conf Configuration to extract name -&gt; list&lt;scan&gt; mappings from.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * @return the snapshot name -&gt; list&lt;scan&gt; mapping pushed to configuration<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> */<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> public Map<String, Collection<Scan>> getSnapshotsToScans(Configuration conf) throws IOException {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> Map<String, Collection<Scan>> rtn = Maps.newHashMap();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> for (Map.Entry<String, String> entry : ConfigurationUtil.getKeyValues(conf,<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> SNAPSHOT_TO_SCANS_KEY)) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> String snapshotName = entry.getKey();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> String scan = entry.getValue();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> Collection<Scan> snapshotScans = rtn.get(snapshotName);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> if (snapshotScans == null) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> snapshotScans = Lists.newArrayList();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> rtn.put(snapshotName, snapshotScans);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> snapshotScans.add(TableMapReduceUtil.convertStringToScan(scan));<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> return rtn;<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> /**<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * Push snapshotScans to conf (under the key {@link #SNAPSHOT_TO_SCANS_KEY})<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> */<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> public void setSnapshotToScans(Configuration conf, Map<String, Collection<Scan>> snapshotScans)<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> throws IOException {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // flatten out snapshotScans for serialization to the job conf<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> List<Map.Entry<String, String>> snapshotToSerializedScans = Lists.newArrayList();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> for (Map.Entry<String, Collection<Scan>> entry : snapshotScans.entrySet()) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> String snapshotName = entry.getKey();<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> Collection<Scan> scans = entry.getValue();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> // serialize all scans and map them to the appropriate snapshot<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> for (Scan scan : scans) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> snapshotToSerializedScans.add(new AbstractMap.SimpleImmutableEntry<>(snapshotName,<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> TableMapReduceUtil.convertScanToString(scan)));<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> ConfigurationUtil.setKeyValues(conf, SNAPSHOT_TO_SCANS_KEY, snapshotToSerializedScans);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> /**<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * Retrieve the directories into which snapshots have been restored from<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * ({@link #RESTORE_DIRS_KEY})<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * @param conf Configuration to extract restore directories from<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> * @return the directories into which snapshots have been restored from<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> */<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> public Map<String, Path> getSnapshotDirs(Configuration conf) throws IOException {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> List<Map.Entry<String, String>> kvps = ConfigurationUtil.getKeyValues(conf, RESTORE_DIRS_KEY);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> Map<String, Path> rtn = Maps.newHashMapWithExpectedSize(kvps.size());<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> for (Map.Entry<String, String> kvp : kvps) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> rtn.put(kvp.getKey(), new Path(kvp.getValue()));<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> return rtn;<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> public void setSnapshotDirs(Configuration conf, Map<String, Path> snapshotDirs) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> Map<String, String> toSet = Maps.newHashMap();<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> for (Map.Entry<String, Path> entry : snapshotDirs.entrySet()) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> toSet.put(entry.getKey(), entry.getValue().toString());<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> ConfigurationUtil.setKeyValues(conf, RESTORE_DIRS_KEY, toSet.entrySet());<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> /**<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * Generate a random path underneath baseRestoreDir for each snapshot in snapshots and return a<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * map from the snapshot to the restore directory.<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * @param snapshots collection of snapshot names to restore<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * @param baseRestoreDir base directory under which all snapshots in snapshots will be restored<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * @return a mapping from snapshot name to the directory in which that snapshot has been restored<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> */<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> private Map<String, Path> generateSnapshotToRestoreDirMapping(Collection<String> snapshots,<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> Path baseRestoreDir) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> Map<String, Path> rtn = Maps.newHashMap();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> for (String snapshotName : snapshots) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> Path restoreSnapshotDir =<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> new Path(baseRestoreDir, snapshotName + "__" + UUID.randomUUID().toString());<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> rtn.put(snapshotName, restoreSnapshotDir);<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> return rtn;<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> }<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> /**<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> * Restore each (snapshot name, restore directory) pair in snapshotToDir<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> * @param conf configuration to restore with<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> * @param snapshotToDir mapping from snapshot names to restore directories<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * @param fs filesystem to do snapshot restoration on<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> */<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> public void restoreSnapshots(Configuration conf, Map<String, Path> snapshotToDir, FileSystem fs)<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> throws IOException {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> // TODO: restore from record readers to parallelize.<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> Path rootDir = CommonFSUtils.getRootDir(conf);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> for (Map.Entry<String, Path> entry : snapshotToDir.entrySet()) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> String snapshotName = entry.getKey();<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> Path restoreDir = entry.getValue();<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> LOG.info("Restoring snapshot " + snapshotName + " into " + restoreDir<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> + " for MultiTableSnapshotInputFormat");<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> restoreSnapshot(conf, snapshotName, rootDir, restoreDir, fs);<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><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> void restoreSnapshot(Configuration conf, String snapshotName, Path rootDir, Path restoreDir,<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> FileSystem fs) throws IOException {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> RestoreSnapshotHelper.copySnapshotForScanner(conf, fs, rootDir, restoreDir, snapshotName);<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span><a name="line.231"></a> |
| <span class="sourceLineNo">232</span>}<a name="line.232"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
