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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.snapshot;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.BufferedInputStream;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.DataInput;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.DataOutput;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.FileNotFoundException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.io.InputStream;<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.Collections;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Comparator;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.LinkedList;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.List;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.ExecutionException;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.concurrent.ExecutorService;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.concurrent.Executors;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.concurrent.Future;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.function.BiConsumer;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.conf.Configuration;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.fs.FSDataInputStream;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.fs.FSDataOutputStream;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.fs.FileChecksum;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.fs.FileStatus;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.fs.FileSystem;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.fs.Path;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.fs.permission.FsPermission;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.HConstants;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.TableName;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.io.FileLink;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.io.HFileLink;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.io.WALLink;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.io.hadoopbackport.ThrottledInputStream;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.mob.MobUtils;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.AbstractHBaseTool;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.util.HFileArchiveUtil;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.io.BytesWritable;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.io.NullWritable;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.io.Writable;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.mapreduce.InputFormat;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.mapreduce.InputSplit;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>import org.apache.hadoop.mapreduce.Job;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>import org.apache.hadoop.mapreduce.JobContext;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>import org.apache.hadoop.mapreduce.Mapper;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span>import org.apache.hadoop.mapreduce.RecordReader;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>import org.apache.hadoop.mapreduce.security.TokenCache;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span>import org.apache.hadoop.util.StringUtils;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span>import org.apache.hadoop.util.Tool;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span>import org.slf4j.Logger;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span>import org.slf4j.LoggerFactory;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.Option;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotFileInfo;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span>/**<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * Export the specified snapshot to a given FileSystem. The .snapshot/name folder is copied to the<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * destination cluster and then all the hfiles/wals are copied using a Map-Reduce Job in the<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * .archive/ location. When everything is done, the second cluster can restore the snapshot.<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> */<a name="line.90"></a> |
| <span class="sourceLineNo">091</span>@InterfaceAudience.Public<a name="line.91"></a> |
| <span class="sourceLineNo">092</span>public class ExportSnapshot extends AbstractHBaseTool implements Tool {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> public static final String NAME = "exportsnapshot";<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> /** Configuration prefix for overrides for the source filesystem */<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> public static final String CONF_SOURCE_PREFIX = NAME + ".from.";<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> /** Configuration prefix for overrides for the destination filesystem */<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> public static final String CONF_DEST_PREFIX = NAME + ".to.";<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> private static final Logger LOG = LoggerFactory.getLogger(ExportSnapshot.class);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> private static final String MR_NUM_MAPS = "mapreduce.job.maps";<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> private static final String CONF_NUM_SPLITS = "snapshot.export.format.splits";<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> private static final String CONF_SNAPSHOT_NAME = "snapshot.export.format.snapshot.name";<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> private static final String CONF_SNAPSHOT_DIR = "snapshot.export.format.snapshot.dir";<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> private static final String CONF_FILES_USER = "snapshot.export.files.attributes.user";<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> private static final String CONF_FILES_GROUP = "snapshot.export.files.attributes.group";<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> private static final String CONF_FILES_MODE = "snapshot.export.files.attributes.mode";<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> private static final String CONF_CHECKSUM_VERIFY = "snapshot.export.checksum.verify";<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> private static final String CONF_OUTPUT_ROOT = "snapshot.export.output.root";<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> private static final String CONF_INPUT_ROOT = "snapshot.export.input.root";<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> private static final String CONF_BUFFER_SIZE = "snapshot.export.buffer.size";<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> private static final String CONF_REPORT_SIZE = "snapshot.export.report.size";<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> private static final String CONF_MAP_GROUP = "snapshot.export.default.map.group";<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> private static final String CONF_BANDWIDTH_MB = "snapshot.export.map.bandwidth.mb";<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> private static final String CONF_MR_JOB_NAME = "mapreduce.job.name";<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> protected static final String CONF_SKIP_TMP = "snapshot.export.skip.tmp";<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> private static final String CONF_COPY_MANIFEST_THREADS =<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> "snapshot.export.copy.references.threads";<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> private static final int DEFAULT_COPY_MANIFEST_THREADS =<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> Runtime.getRuntime().availableProcessors();<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> static class Testing {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> static final String CONF_TEST_FAILURE = "test.snapshot.export.failure";<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> static final String CONF_TEST_FAILURE_COUNT = "test.snapshot.export.failure.count";<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> int failuresCountToInject = 0;<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> int injectedFailureCount = 0;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // Command line options and defaults.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> static final class Options {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> static final Option SNAPSHOT = new Option(null, "snapshot", true, "Snapshot to restore.");<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> static final Option TARGET_NAME =<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> new Option(null, "target", true, "Target name for the snapshot.");<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> static final Option COPY_TO =<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> new Option(null, "copy-to", true, "Remote " + "destination hdfs://");<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> static final Option COPY_FROM =<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> new Option(null, "copy-from", true, "Input folder hdfs:// (default hbase.rootdir)");<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> static final Option NO_CHECKSUM_VERIFY = new Option(null, "no-checksum-verify", false,<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> "Do not verify checksum, use name+length only.");<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> static final Option NO_TARGET_VERIFY = new Option(null, "no-target-verify", false,<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> "Do not verify the integrity of the exported snapshot.");<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> static final Option NO_SOURCE_VERIFY =<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> new Option(null, "no-source-verify", false, "Do not verify the source of the snapshot.");<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> static final Option OVERWRITE =<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> new Option(null, "overwrite", false, "Rewrite the snapshot manifest if already exists.");<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> static final Option CHUSER =<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> new Option(null, "chuser", true, "Change the owner of the files to the specified one.");<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> static final Option CHGROUP =<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> new Option(null, "chgroup", true, "Change the group of the files to the specified one.");<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> static final Option CHMOD =<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> new Option(null, "chmod", true, "Change the permission of the files to the specified one.");<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> static final Option MAPPERS = new Option(null, "mappers", true,<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> "Number of mappers to use during the copy (mapreduce.job.maps).");<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> static final Option BANDWIDTH =<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> new Option(null, "bandwidth", true, "Limit bandwidth to this value in MB/second.");<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> static final Option RESET_TTL =<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> new Option(null, "reset-ttl", false, "Do not copy TTL for the snapshot");<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> // Export Map-Reduce Counters, to keep track of the progress<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> public enum Counter {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> MISSING_FILES,<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> FILES_COPIED,<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> FILES_SKIPPED,<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> COPY_FAILED,<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> BYTES_EXPECTED,<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> BYTES_SKIPPED,<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> BYTES_COPIED<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<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> * Indicates the checksum comparison result.<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> */<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> public enum ChecksumComparison {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> TRUE, // checksum comparison is compatible and true.<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> FALSE, // checksum comparison is compatible and false.<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> INCOMPATIBLE, // checksum comparison is not compatible.<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> private static class ExportMapper<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> extends Mapper<BytesWritable, NullWritable, NullWritable, NullWritable> {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> private static final Logger LOG = LoggerFactory.getLogger(ExportMapper.class);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> final static int REPORT_SIZE = 1 * 1024 * 1024;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> final static int BUFFER_SIZE = 64 * 1024;<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> private boolean verifyChecksum;<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> private String filesGroup;<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> private String filesUser;<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> private short filesMode;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> private int bufferSize;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> private int reportSize;<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> private FileSystem outputFs;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> private Path outputArchive;<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> private Path outputRoot;<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> private FileSystem inputFs;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> private Path inputArchive;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> private Path inputRoot;<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> private static Testing testing = new Testing();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> @Override<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> public void setup(Context context) throws IOException {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> Configuration conf = context.getConfiguration();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> verifyChecksum = conf.getBoolean(CONF_CHECKSUM_VERIFY, true);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span><a name="line.211"></a> |
| <span class="sourceLineNo">212</span> filesGroup = conf.get(CONF_FILES_GROUP);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> filesUser = conf.get(CONF_FILES_USER);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> filesMode = (short) conf.getInt(CONF_FILES_MODE, 0);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> outputRoot = new Path(conf.get(CONF_OUTPUT_ROOT));<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> inputRoot = new Path(conf.get(CONF_INPUT_ROOT));<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> inputArchive = new Path(inputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> outputArchive = new Path(outputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> try {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> inputFs = FileSystem.get(inputRoot.toUri(), srcConf);<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> } catch (IOException e) {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> throw new IOException("Could not get the input FileSystem with root=" + inputRoot, e);<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> try {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> outputFs = FileSystem.get(outputRoot.toUri(), destConf);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> } catch (IOException e) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> throw new IOException("Could not get the output FileSystem with root=" + outputRoot, e);<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> // Use the default block size of the outputFs if bigger<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> int defaultBlockSize = Math.max((int) outputFs.getDefaultBlockSize(outputRoot), BUFFER_SIZE);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> bufferSize = conf.getInt(CONF_BUFFER_SIZE, defaultBlockSize);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> LOG.info("Using bufferSize=" + StringUtils.humanReadableInt(bufferSize));<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> reportSize = conf.getInt(CONF_REPORT_SIZE, REPORT_SIZE);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> for (Counter c : Counter.values()) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> context.getCounter(c).increment(0);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> if (context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> testing.failuresCountToInject = conf.getInt(Testing.CONF_TEST_FAILURE_COUNT, 0);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // Get number of times we have already injected failure based on attempt number of this<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // task.<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> testing.injectedFailureCount = context.getTaskAttemptID().getId();<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> @Override<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> public void map(BytesWritable key, NullWritable value, Context context)<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> throws InterruptedException, IOException {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> SnapshotFileInfo inputInfo = SnapshotFileInfo.parseFrom(key.copyBytes());<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> Path outputPath = getOutputPath(inputInfo);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> copyFile(context, inputInfo, outputPath);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> }<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> /**<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * Returns the location where the inputPath will be copied.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> */<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> private Path getOutputPath(final SnapshotFileInfo inputInfo) throws IOException {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> Path path = null;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> switch (inputInfo.getType()) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> case HFILE:<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> Path inputPath = new Path(inputInfo.getHfile());<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> String family = inputPath.getParent().getName();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> TableName table = HFileLink.getReferencedTableName(inputPath.getName());<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> String region = HFileLink.getReferencedRegionName(inputPath.getName());<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> String hfile = HFileLink.getReferencedHFileName(inputPath.getName());<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> path = new Path(CommonFSUtils.getTableDir(new Path("./"), table),<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> new Path(region, new Path(family, hfile)));<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> break;<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> case WAL:<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> LOG.warn("snapshot does not keeps WALs: " + inputInfo);<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> break;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> default:<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> throw new IOException("Invalid File Type: " + inputInfo.getType().toString());<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return new Path(outputArchive, path);<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> @SuppressWarnings("checkstyle:linelength")<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> /**<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * Used by TestExportSnapshot to test for retries when failures happen. Failure is injected in<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * {@link #copyFile(Mapper.Context, org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotFileInfo, Path)}.<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> */<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> private void injectTestFailure(final Context context, final SnapshotFileInfo inputInfo)<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> throws IOException {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> if (!context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) return;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> if (testing.injectedFailureCount >= testing.failuresCountToInject) return;<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> testing.injectedFailureCount++;<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> context.getCounter(Counter.COPY_FAILED).increment(1);<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> LOG.debug("Injecting failure. Count: " + testing.injectedFailureCount);<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> throw new IOException(String.format("TEST FAILURE (%d of max %d): Unable to copy input=%s",<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> testing.injectedFailureCount, testing.failuresCountToInject, inputInfo));<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> }<a name="line.297"></a> |
| <span class="sourceLineNo">298</span><a name="line.298"></a> |
| <span class="sourceLineNo">299</span> private void copyFile(final Context context, final SnapshotFileInfo inputInfo,<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> final Path outputPath) throws IOException {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> // Get the file information<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> FileStatus inputStat = getSourceFileStatus(context, inputInfo);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // Verify if the output file exists and is the same that we want to copy<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> if (outputFs.exists(outputPath)) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> FileStatus outputStat = outputFs.getFileStatus(outputPath);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> if (outputStat != null && sameFile(inputStat, outputStat)) {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> LOG.info("Skip copy " + inputStat.getPath() + " to " + outputPath + ", same file.");<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> context.getCounter(Counter.FILES_SKIPPED).increment(1);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> context.getCounter(Counter.BYTES_SKIPPED).increment(inputStat.getLen());<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> return;<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><a name="line.314"></a> |
| <span class="sourceLineNo">315</span> InputStream in = openSourceFile(context, inputInfo);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> int bandwidthMB = context.getConfiguration().getInt(CONF_BANDWIDTH_MB, 100);<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> if (Integer.MAX_VALUE != bandwidthMB) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> in = new ThrottledInputStream(new BufferedInputStream(in), bandwidthMB * 1024 * 1024L);<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> Path inputPath = inputStat.getPath();<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> try {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> context.getCounter(Counter.BYTES_EXPECTED).increment(inputStat.getLen());<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> // Ensure that the output folder is there and copy the file<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> createOutputPath(outputPath.getParent());<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> FSDataOutputStream out = outputFs.create(outputPath, true);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span><a name="line.328"></a> |
| <span class="sourceLineNo">329</span> long stime = EnvironmentEdgeManager.currentTime();<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> long totalBytesWritten =<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> copyData(context, inputPath, in, outputPath, out, inputStat.getLen());<a name="line.331"></a> |
| <span class="sourceLineNo">332</span><a name="line.332"></a> |
| <span class="sourceLineNo">333</span> // Verify the file length and checksum<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> verifyCopyResult(inputStat, outputFs.getFileStatus(outputPath));<a name="line.334"></a> |
| <span class="sourceLineNo">335</span><a name="line.335"></a> |
| <span class="sourceLineNo">336</span> long etime = EnvironmentEdgeManager.currentTime();<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> LOG.info("copy completed for input=" + inputPath + " output=" + outputPath);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> LOG<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> .info("size=" + totalBytesWritten + " (" + StringUtils.humanReadableInt(totalBytesWritten)<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> + ")" + " time=" + StringUtils.formatTimeDiff(etime, stime) + String<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> .format(" %.3fM/sec", (totalBytesWritten / ((etime - stime) / 1000.0)) / 1048576.0));<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> context.getCounter(Counter.FILES_COPIED).increment(1);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span><a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // Try to Preserve attributes<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> if (!preserveAttributes(outputPath, inputStat)) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> LOG.warn("You may have to run manually chown on: " + outputPath);<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> }<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> } catch (IOException e) {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> LOG.error("Error copying " + inputPath + " to " + outputPath, e);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> context.getCounter(Counter.COPY_FAILED).increment(1);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> throw e;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> } finally {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> injectTestFailure(context, inputInfo);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> }<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span><a name="line.356"></a> |
| <span class="sourceLineNo">357</span> /**<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * Create the output folder and optionally set ownership.<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> */<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> private void createOutputPath(final Path path) throws IOException {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> if (filesUser == null && filesGroup == null) {<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> outputFs.mkdirs(path);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> } else {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> Path parent = path.getParent();<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> if (!outputFs.exists(parent) && !parent.isRoot()) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> createOutputPath(parent);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> outputFs.mkdirs(path);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (filesUser != null || filesGroup != null) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> // override the owner when non-null user/group is specified<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> outputFs.setOwner(path, filesUser, filesGroup);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> if (filesMode > 0) {<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> outputFs.setPermission(path, new FsPermission(filesMode));<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> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span><a name="line.378"></a> |
| <span class="sourceLineNo">379</span> /**<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * Try to Preserve the files attribute selected by the user copying them from the source file<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> * This is only required when you are exporting as a different user than "hbase" or on a system<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * that doesn't have the "hbase" user. This is not considered a blocking failure since the user<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> * can force a chmod with the user that knows is available on the system.<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> */<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> private boolean preserveAttributes(final Path path, final FileStatus refStat) {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> FileStatus stat;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> try {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> stat = outputFs.getFileStatus(path);<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> } catch (IOException e) {<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> LOG.warn("Unable to get the status for file=" + path);<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> return false;<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span><a name="line.393"></a> |
| <span class="sourceLineNo">394</span> try {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> if (filesMode > 0 && stat.getPermission().toShort() != filesMode) {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> outputFs.setPermission(path, new FsPermission(filesMode));<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> } else if (refStat != null && !stat.getPermission().equals(refStat.getPermission())) {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> outputFs.setPermission(path, refStat.getPermission());<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> } catch (IOException e) {<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> LOG.warn("Unable to set the permission for file=" + stat.getPath() + ": " + e.getMessage());<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> return false;<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> }<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> boolean hasRefStat = (refStat != null);<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> String user = stringIsNotEmpty(filesUser) || !hasRefStat ? filesUser : refStat.getOwner();<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> String group = stringIsNotEmpty(filesGroup) || !hasRefStat ? filesGroup : refStat.getGroup();<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> if (stringIsNotEmpty(user) || stringIsNotEmpty(group)) {<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> try {<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> if (!(user.equals(stat.getOwner()) && group.equals(stat.getGroup()))) {<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> outputFs.setOwner(path, user, group);<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> }<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> } catch (IOException e) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> LOG.warn(<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> "Unable to set the owner/group for file=" + stat.getPath() + ": " + e.getMessage());<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> LOG.warn("The user/group may not exist on the destination cluster: user=" + user<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> + " group=" + group);<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> return false;<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> return true;<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> }<a name="line.423"></a> |
| <span class="sourceLineNo">424</span><a name="line.424"></a> |
| <span class="sourceLineNo">425</span> private boolean stringIsNotEmpty(final String str) {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> return str != null && str.length() > 0;<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> }<a name="line.427"></a> |
| <span class="sourceLineNo">428</span><a name="line.428"></a> |
| <span class="sourceLineNo">429</span> private long copyData(final Context context, final Path inputPath, final InputStream in,<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> final Path outputPath, final FSDataOutputStream out, final long inputFileSize)<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> throws IOException {<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> final String statusMessage =<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> "copied %s/" + StringUtils.humanReadableInt(inputFileSize) + " (%.1f%%)";<a name="line.433"></a> |
| <span class="sourceLineNo">434</span><a name="line.434"></a> |
| <span class="sourceLineNo">435</span> try {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> byte[] buffer = new byte[bufferSize];<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> long totalBytesWritten = 0;<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> int reportBytes = 0;<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> int bytesRead;<a name="line.439"></a> |
| <span class="sourceLineNo">440</span><a name="line.440"></a> |
| <span class="sourceLineNo">441</span> while ((bytesRead = in.read(buffer)) > 0) {<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> out.write(buffer, 0, bytesRead);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> totalBytesWritten += bytesRead;<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> reportBytes += bytesRead;<a name="line.444"></a> |
| <span class="sourceLineNo">445</span><a name="line.445"></a> |
| <span class="sourceLineNo">446</span> if (reportBytes >= reportSize) {<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> context.setStatus(<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> String.format(statusMessage, StringUtils.humanReadableInt(totalBytesWritten),<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> (totalBytesWritten / (float) inputFileSize) * 100.0f) + " from " + inputPath<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> + " to " + outputPath);<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> reportBytes = 0;<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> }<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> context<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> .setStatus(String.format(statusMessage, StringUtils.humanReadableInt(totalBytesWritten),<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> (totalBytesWritten / (float) inputFileSize) * 100.0f) + " from " + inputPath + " to "<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> + outputPath);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span><a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return totalBytesWritten;<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> } finally {<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> out.close();<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> in.close();<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span><a name="line.468"></a> |
| <span class="sourceLineNo">469</span> /**<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> * Try to open the "source" file. Throws an IOException if the communication with the inputFs<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> * fail or if the file is not found.<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> */<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> private FSDataInputStream openSourceFile(Context context, final SnapshotFileInfo fileInfo)<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> throws IOException {<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> try {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> Configuration conf = context.getConfiguration();<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> FileLink link = null;<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> switch (fileInfo.getType()) {<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> case HFILE:<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> Path inputPath = new Path(fileInfo.getHfile());<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> link = getFileLink(inputPath, conf);<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> break;<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> case WAL:<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> String serverName = fileInfo.getWalServer();<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> String logName = fileInfo.getWalName();<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> link = new WALLink(inputRoot, serverName, logName);<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> break;<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> default:<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> }<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> return link.open(inputFs);<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> } catch (IOException e) {<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> context.getCounter(Counter.MISSING_FILES).increment(1);<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> LOG.error("Unable to open source file=" + fileInfo.toString(), e);<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> throw e;<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> }<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span><a name="line.498"></a> |
| <span class="sourceLineNo">499</span> private FileStatus getSourceFileStatus(Context context, final SnapshotFileInfo fileInfo)<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> throws IOException {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> try {<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> Configuration conf = context.getConfiguration();<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> FileLink link = null;<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> switch (fileInfo.getType()) {<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> case HFILE:<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> Path inputPath = new Path(fileInfo.getHfile());<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> link = getFileLink(inputPath, conf);<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> break;<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> case WAL:<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> link = new WALLink(inputRoot, fileInfo.getWalServer(), fileInfo.getWalName());<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> break;<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> default:<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> return link.getFileStatus(inputFs);<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> } catch (FileNotFoundException e) {<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> context.getCounter(Counter.MISSING_FILES).increment(1);<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> throw e;<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> } catch (IOException e) {<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> throw e;<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> }<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> }<a name="line.524"></a> |
| <span class="sourceLineNo">525</span><a name="line.525"></a> |
| <span class="sourceLineNo">526</span> private FileLink getFileLink(Path path, Configuration conf) throws IOException {<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> String regionName = HFileLink.getReferencedRegionName(path.getName());<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> TableName tableName = HFileLink.getReferencedTableName(path.getName());<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> if (MobUtils.getMobRegionInfo(tableName).getEncodedName().equals(regionName)) {<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> return HFileLink.buildFromHFileLinkPattern(MobUtils.getQualifiedMobRootDir(conf),<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> HFileArchiveUtil.getArchivePath(conf), path);<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> }<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> return HFileLink.buildFromHFileLinkPattern(inputRoot, inputArchive, path);<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> }<a name="line.534"></a> |
| <span class="sourceLineNo">535</span><a name="line.535"></a> |
| <span class="sourceLineNo">536</span> private FileChecksum getFileChecksum(final FileSystem fs, final Path path) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> try {<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> return fs.getFileChecksum(path);<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> } catch (IOException e) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> LOG.warn("Unable to get checksum for file=" + path, e);<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> return null;<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> }<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> }<a name="line.543"></a> |
| <span class="sourceLineNo">544</span><a name="line.544"></a> |
| <span class="sourceLineNo">545</span> /**<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> * Utility to compare the file length and checksums for the paths specified.<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> */<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> private void verifyCopyResult(final FileStatus inputStat, final FileStatus outputStat)<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> throws IOException {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> long inputLen = inputStat.getLen();<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> long outputLen = outputStat.getLen();<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> Path inputPath = inputStat.getPath();<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> Path outputPath = outputStat.getPath();<a name="line.553"></a> |
| <span class="sourceLineNo">554</span><a name="line.554"></a> |
| <span class="sourceLineNo">555</span> if (inputLen != outputLen) {<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> throw new IOException("Mismatch in length of input:" + inputPath + " (" + inputLen<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> + ") and output:" + outputPath + " (" + outputLen + ")");<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> }<a name="line.558"></a> |
| <span class="sourceLineNo">559</span><a name="line.559"></a> |
| <span class="sourceLineNo">560</span> // If length==0, we will skip checksum<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> if (inputLen != 0 && verifyChecksum) {<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> FileChecksum inChecksum = getFileChecksum(inputFs, inputStat.getPath());<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> FileChecksum outChecksum = getFileChecksum(outputFs, outputStat.getPath());<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> ChecksumComparison checksumComparison = verifyChecksum(inChecksum, outChecksum);<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> if (!checksumComparison.equals(ChecksumComparison.TRUE)) {<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> StringBuilder errMessage = new StringBuilder("Checksum mismatch between ")<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> .append(inputPath).append(" and ").append(outputPath).append(".");<a name="line.568"></a> |
| <span class="sourceLineNo">569</span><a name="line.569"></a> |
| <span class="sourceLineNo">570</span> boolean addSkipHint = false;<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> String inputScheme = inputFs.getScheme();<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> String outputScheme = outputFs.getScheme();<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> if (!inputScheme.equals(outputScheme)) {<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> errMessage.append(" Input and output filesystems are of different types.\n")<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> .append("Their checksum algorithms may be incompatible.");<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> addSkipHint = true;<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> } else if (inputStat.getBlockSize() != outputStat.getBlockSize()) {<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> errMessage.append(" Input and output differ in block-size.");<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> addSkipHint = true;<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> } else if (<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> inChecksum != null && outChecksum != null<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> && !inChecksum.getAlgorithmName().equals(outChecksum.getAlgorithmName())<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> ) {<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> errMessage.append(" Input and output checksum algorithms are of different types.");<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> addSkipHint = true;<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> }<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> if (addSkipHint) {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> errMessage<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> .append(" You can choose file-level checksum validation via "<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> + "-Ddfs.checksum.combine.mode=COMPOSITE_CRC when block-sizes"<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> + " or filesystems are different.")<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> .append(" Or you can skip checksum-checks altogether with --no-checksum-verify.\n")<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> .append(" (NOTE: By skipping checksums, one runs the risk of "<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> + "masking data-corruption during file-transfer.)\n");<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> }<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> throw new IOException(errMessage.toString());<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> }<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> }<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> }<a name="line.599"></a> |
| <span class="sourceLineNo">600</span><a name="line.600"></a> |
| <span class="sourceLineNo">601</span> /**<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> * Utility to compare checksums<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> */<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> private ChecksumComparison verifyChecksum(final FileChecksum inChecksum,<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> final FileChecksum outChecksum) {<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> // If the input or output checksum is null, or the algorithms of input and output are not<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> // equal, that means there is no comparison<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> // and return not compatible. else if matched, return compatible with the matched result.<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> if (<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> inChecksum == null || outChecksum == null<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> || !inChecksum.getAlgorithmName().equals(outChecksum.getAlgorithmName())<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> ) {<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> return ChecksumComparison.INCOMPATIBLE;<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> } else if (inChecksum.equals(outChecksum)) {<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> return ChecksumComparison.TRUE;<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> }<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> return ChecksumComparison.FALSE;<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> }<a name="line.618"></a> |
| <span class="sourceLineNo">619</span><a name="line.619"></a> |
| <span class="sourceLineNo">620</span> /**<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> * Check if the two files are equal by looking at the file length, and at the checksum (if user<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> * has specified the verifyChecksum flag).<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> */<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> private boolean sameFile(final FileStatus inputStat, final FileStatus outputStat) {<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> // Not matching length<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> if (inputStat.getLen() != outputStat.getLen()) return false;<a name="line.626"></a> |
| <span class="sourceLineNo">627</span><a name="line.627"></a> |
| <span class="sourceLineNo">628</span> // Mark files as equals, since user asked for no checksum verification<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> if (!verifyChecksum) return true;<a name="line.629"></a> |
| <span class="sourceLineNo">630</span><a name="line.630"></a> |
| <span class="sourceLineNo">631</span> // If checksums are not available, files are not the same.<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> FileChecksum inChecksum = getFileChecksum(inputFs, inputStat.getPath());<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> if (inChecksum == null) return false;<a name="line.633"></a> |
| <span class="sourceLineNo">634</span><a name="line.634"></a> |
| <span class="sourceLineNo">635</span> FileChecksum outChecksum = getFileChecksum(outputFs, outputStat.getPath());<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> if (outChecksum == null) return false;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span><a name="line.637"></a> |
| <span class="sourceLineNo">638</span> return inChecksum.equals(outChecksum);<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> }<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> }<a name="line.640"></a> |
| <span class="sourceLineNo">641</span><a name="line.641"></a> |
| <span class="sourceLineNo">642</span> // ==========================================================================<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> // Input Format<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> // ==========================================================================<a name="line.644"></a> |
| <span class="sourceLineNo">645</span><a name="line.645"></a> |
| <span class="sourceLineNo">646</span> /**<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> * Extract the list of files (HFiles/WALs) to copy using Map-Reduce.<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> * @return list of files referenced by the snapshot (pair of path and size)<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> */<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> private static List<Pair<SnapshotFileInfo, Long>> getSnapshotFiles(final Configuration conf,<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> final FileSystem fs, final Path snapshotDir) throws IOException {<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> SnapshotDescription snapshotDesc = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.652"></a> |
| <span class="sourceLineNo">653</span><a name="line.653"></a> |
| <span class="sourceLineNo">654</span> final List<Pair<SnapshotFileInfo, Long>> files = new ArrayList<>();<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> final TableName table = TableName.valueOf(snapshotDesc.getTable());<a name="line.655"></a> |
| <span class="sourceLineNo">656</span><a name="line.656"></a> |
| <span class="sourceLineNo">657</span> // Get snapshot files<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> LOG.info("Loading Snapshot '" + snapshotDesc.getName() + "' hfile list");<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> SnapshotReferenceUtil.visitReferencedFiles(conf, fs, snapshotDir, snapshotDesc,<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> new SnapshotReferenceUtil.SnapshotVisitor() {<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> @Override<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> public void storeFile(final RegionInfo regionInfo, final String family,<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> final SnapshotRegionManifest.StoreFile storeFile) throws IOException {<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> Pair<SnapshotFileInfo, Long> snapshotFileAndSize = null;<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> if (!storeFile.hasReference()) {<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> String region = regionInfo.getEncodedName();<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> String hfile = storeFile.getName();<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> snapshotFileAndSize = getSnapshotFileAndSize(fs, conf, table, region, family, hfile,<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> storeFile.hasFileSize() ? storeFile.getFileSize() : -1);<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> } else {<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> Pair<String, String> referredToRegionAndFile =<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> StoreFileInfo.getReferredToRegionAndFile(storeFile.getName());<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> String referencedRegion = referredToRegionAndFile.getFirst();<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> String referencedHFile = referredToRegionAndFile.getSecond();<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> snapshotFileAndSize = getSnapshotFileAndSize(fs, conf, table, referencedRegion, family,<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> referencedHFile, storeFile.hasFileSize() ? storeFile.getFileSize() : -1);<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> }<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> files.add(snapshotFileAndSize);<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> }<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> });<a name="line.680"></a> |
| <span class="sourceLineNo">681</span><a name="line.681"></a> |
| <span class="sourceLineNo">682</span> return files;<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> }<a name="line.683"></a> |
| <span class="sourceLineNo">684</span><a name="line.684"></a> |
| <span class="sourceLineNo">685</span> private static Pair<SnapshotFileInfo, Long> getSnapshotFileAndSize(FileSystem fs,<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> Configuration conf, TableName table, String region, String family, String hfile, long size)<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> throws IOException {<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> Path path = HFileLink.createPath(table, region, family, hfile);<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> SnapshotFileInfo fileInfo = SnapshotFileInfo.newBuilder().setType(SnapshotFileInfo.Type.HFILE)<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> .setHfile(path.toString()).build();<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> if (size == -1) {<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> size = HFileLink.buildFromHFileLinkPattern(conf, path).getFileStatus(fs).getLen();<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> }<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> return new Pair<>(fileInfo, size);<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> }<a name="line.695"></a> |
| <span class="sourceLineNo">696</span><a name="line.696"></a> |
| <span class="sourceLineNo">697</span> /**<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> * Given a list of file paths and sizes, create around ngroups in as balanced a way as possible.<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> * The groups created will have similar amounts of bytes.<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> * <p><a name="line.700"></a> |
| <span class="sourceLineNo">701</span> * The algorithm used is pretty straightforward; the file list is sorted by size, and then each<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> * group fetch the bigger file available, iterating through groups alternating the direction.<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> */<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> static List<List<Pair<SnapshotFileInfo, Long>>><a name="line.704"></a> |
| <span class="sourceLineNo">705</span> getBalancedSplits(final List<Pair<SnapshotFileInfo, Long>> files, final int ngroups) {<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> // Sort files by size, from small to big<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> Collections.sort(files, new Comparator<Pair<SnapshotFileInfo, Long>>() {<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> public int compare(Pair<SnapshotFileInfo, Long> a, Pair<SnapshotFileInfo, Long> b) {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> long r = a.getSecond() - b.getSecond();<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> return (r < 0) ? -1 : ((r > 0) ? 1 : 0);<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> }<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> });<a name="line.712"></a> |
| <span class="sourceLineNo">713</span><a name="line.713"></a> |
| <span class="sourceLineNo">714</span> // create balanced groups<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> List<List<Pair<SnapshotFileInfo, Long>>> fileGroups = new LinkedList<>();<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> long[] sizeGroups = new long[ngroups];<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> int hi = files.size() - 1;<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> int lo = 0;<a name="line.718"></a> |
| <span class="sourceLineNo">719</span><a name="line.719"></a> |
| <span class="sourceLineNo">720</span> List<Pair<SnapshotFileInfo, Long>> group;<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> int dir = 1;<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> int g = 0;<a name="line.722"></a> |
| <span class="sourceLineNo">723</span><a name="line.723"></a> |
| <span class="sourceLineNo">724</span> while (hi >= lo) {<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> if (g == fileGroups.size()) {<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> group = new LinkedList<>();<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> fileGroups.add(group);<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> } else {<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> group = fileGroups.get(g);<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> }<a name="line.730"></a> |
| <span class="sourceLineNo">731</span><a name="line.731"></a> |
| <span class="sourceLineNo">732</span> Pair<SnapshotFileInfo, Long> fileInfo = files.get(hi--);<a name="line.732"></a> |
| <span class="sourceLineNo">733</span><a name="line.733"></a> |
| <span class="sourceLineNo">734</span> // add the hi one<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> sizeGroups[g] += fileInfo.getSecond();<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> group.add(fileInfo);<a name="line.736"></a> |
| <span class="sourceLineNo">737</span><a name="line.737"></a> |
| <span class="sourceLineNo">738</span> // change direction when at the end or the beginning<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> g += dir;<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> if (g == ngroups) {<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> dir = -1;<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> g = ngroups - 1;<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> } else if (g < 0) {<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> dir = 1;<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> g = 0;<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> }<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> }<a name="line.747"></a> |
| <span class="sourceLineNo">748</span><a name="line.748"></a> |
| <span class="sourceLineNo">749</span> if (LOG.isDebugEnabled()) {<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> for (int i = 0; i < sizeGroups.length; ++i) {<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> LOG.debug("export split=" + i + " size=" + StringUtils.humanReadableInt(sizeGroups[i]));<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> }<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> }<a name="line.753"></a> |
| <span class="sourceLineNo">754</span><a name="line.754"></a> |
| <span class="sourceLineNo">755</span> return fileGroups;<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> }<a name="line.756"></a> |
| <span class="sourceLineNo">757</span><a name="line.757"></a> |
| <span class="sourceLineNo">758</span> private static class ExportSnapshotInputFormat extends InputFormat<BytesWritable, NullWritable> {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> @Override<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> public RecordReader<BytesWritable, NullWritable> createRecordReader(InputSplit split,<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> TaskAttemptContext tac) throws IOException, InterruptedException {<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> return new ExportSnapshotRecordReader(((ExportSnapshotInputSplit) split).getSplitKeys());<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> }<a name="line.763"></a> |
| <span class="sourceLineNo">764</span><a name="line.764"></a> |
| <span class="sourceLineNo">765</span> @Override<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> public List<InputSplit> getSplits(JobContext context) throws IOException, InterruptedException {<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> Configuration conf = context.getConfiguration();<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> Path snapshotDir = new Path(conf.get(CONF_SNAPSHOT_DIR));<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> FileSystem fs = FileSystem.get(snapshotDir.toUri(), conf);<a name="line.769"></a> |
| <span class="sourceLineNo">770</span><a name="line.770"></a> |
| <span class="sourceLineNo">771</span> List<Pair<SnapshotFileInfo, Long>> snapshotFiles = getSnapshotFiles(conf, fs, snapshotDir);<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> int mappers = conf.getInt(CONF_NUM_SPLITS, 0);<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> if (mappers == 0 && snapshotFiles.size() > 0) {<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> mappers = 1 + (snapshotFiles.size() / conf.getInt(CONF_MAP_GROUP, 10));<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> mappers = Math.min(mappers, snapshotFiles.size());<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> conf.setInt(CONF_NUM_SPLITS, mappers);<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> conf.setInt(MR_NUM_MAPS, mappers);<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> }<a name="line.778"></a> |
| <span class="sourceLineNo">779</span><a name="line.779"></a> |
| <span class="sourceLineNo">780</span> List<List<Pair<SnapshotFileInfo, Long>>> groups = getBalancedSplits(snapshotFiles, mappers);<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> List<InputSplit> splits = new ArrayList(groups.size());<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> for (List<Pair<SnapshotFileInfo, Long>> files : groups) {<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> splits.add(new ExportSnapshotInputSplit(files));<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> }<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> return splits;<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span><a name="line.787"></a> |
| <span class="sourceLineNo">788</span> private static class ExportSnapshotInputSplit extends InputSplit implements Writable {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> private List<Pair<BytesWritable, Long>> files;<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> private long length;<a name="line.790"></a> |
| <span class="sourceLineNo">791</span><a name="line.791"></a> |
| <span class="sourceLineNo">792</span> public ExportSnapshotInputSplit() {<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> this.files = null;<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span><a name="line.795"></a> |
| <span class="sourceLineNo">796</span> public ExportSnapshotInputSplit(final List<Pair<SnapshotFileInfo, Long>> snapshotFiles) {<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> this.files = new ArrayList(snapshotFiles.size());<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> for (Pair<SnapshotFileInfo, Long> fileInfo : snapshotFiles) {<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> this.files.add(<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> new Pair<>(new BytesWritable(fileInfo.getFirst().toByteArray()), fileInfo.getSecond()));<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> this.length += fileInfo.getSecond();<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> }<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> }<a name="line.803"></a> |
| <span class="sourceLineNo">804</span><a name="line.804"></a> |
| <span class="sourceLineNo">805</span> private List<Pair<BytesWritable, Long>> getSplitKeys() {<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> return files;<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> }<a name="line.807"></a> |
| <span class="sourceLineNo">808</span><a name="line.808"></a> |
| <span class="sourceLineNo">809</span> @Override<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> public long getLength() throws IOException, InterruptedException {<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> return length;<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> }<a name="line.812"></a> |
| <span class="sourceLineNo">813</span><a name="line.813"></a> |
| <span class="sourceLineNo">814</span> @Override<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> public String[] getLocations() throws IOException, InterruptedException {<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> return new String[] {};<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> }<a name="line.817"></a> |
| <span class="sourceLineNo">818</span><a name="line.818"></a> |
| <span class="sourceLineNo">819</span> @Override<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> public void readFields(DataInput in) throws IOException {<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> int count = in.readInt();<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> files = new ArrayList<>(count);<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> length = 0;<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> for (int i = 0; i < count; ++i) {<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> BytesWritable fileInfo = new BytesWritable();<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> fileInfo.readFields(in);<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> long size = in.readLong();<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> files.add(new Pair<>(fileInfo, size));<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> length += size;<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> }<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> }<a name="line.831"></a> |
| <span class="sourceLineNo">832</span><a name="line.832"></a> |
| <span class="sourceLineNo">833</span> @Override<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> public void write(DataOutput out) throws IOException {<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> out.writeInt(files.size());<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> for (final Pair<BytesWritable, Long> fileInfo : files) {<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> fileInfo.getFirst().write(out);<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> out.writeLong(fileInfo.getSecond());<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> }<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> }<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> }<a name="line.841"></a> |
| <span class="sourceLineNo">842</span><a name="line.842"></a> |
| <span class="sourceLineNo">843</span> private static class ExportSnapshotRecordReader<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> extends RecordReader<BytesWritable, NullWritable> {<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> private final List<Pair<BytesWritable, Long>> files;<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> private long totalSize = 0;<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> private long procSize = 0;<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> private int index = -1;<a name="line.848"></a> |
| <span class="sourceLineNo">849</span><a name="line.849"></a> |
| <span class="sourceLineNo">850</span> ExportSnapshotRecordReader(final List<Pair<BytesWritable, Long>> files) {<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> this.files = files;<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> for (Pair<BytesWritable, Long> fileInfo : files) {<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> totalSize += fileInfo.getSecond();<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> }<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> }<a name="line.855"></a> |
| <span class="sourceLineNo">856</span><a name="line.856"></a> |
| <span class="sourceLineNo">857</span> @Override<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> public void close() {<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> }<a name="line.859"></a> |
| <span class="sourceLineNo">860</span><a name="line.860"></a> |
| <span class="sourceLineNo">861</span> @Override<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> public BytesWritable getCurrentKey() {<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> return files.get(index).getFirst();<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> }<a name="line.864"></a> |
| <span class="sourceLineNo">865</span><a name="line.865"></a> |
| <span class="sourceLineNo">866</span> @Override<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> public NullWritable getCurrentValue() {<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> return NullWritable.get();<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> }<a name="line.869"></a> |
| <span class="sourceLineNo">870</span><a name="line.870"></a> |
| <span class="sourceLineNo">871</span> @Override<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> public float getProgress() {<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> return (float) procSize / totalSize;<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> }<a name="line.874"></a> |
| <span class="sourceLineNo">875</span><a name="line.875"></a> |
| <span class="sourceLineNo">876</span> @Override<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> public void initialize(InputSplit split, TaskAttemptContext tac) {<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> }<a name="line.878"></a> |
| <span class="sourceLineNo">879</span><a name="line.879"></a> |
| <span class="sourceLineNo">880</span> @Override<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> public boolean nextKeyValue() {<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> if (index >= 0) {<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> procSize += files.get(index).getSecond();<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> }<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> return (++index < files.size());<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> }<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> }<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> }<a name="line.888"></a> |
| <span class="sourceLineNo">889</span><a name="line.889"></a> |
| <span class="sourceLineNo">890</span> // ==========================================================================<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> // Tool<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> // ==========================================================================<a name="line.892"></a> |
| <span class="sourceLineNo">893</span><a name="line.893"></a> |
| <span class="sourceLineNo">894</span> /**<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> * Run Map-Reduce Job to perform the files copy.<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> */<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> private void runCopyJob(final Path inputRoot, final Path outputRoot, final String snapshotName,<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> final Path snapshotDir, final boolean verifyChecksum, final String filesUser,<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> final String filesGroup, final int filesMode, final int mappers, final int bandwidthMB)<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> Configuration conf = getConf();<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> if (filesGroup != null) conf.set(CONF_FILES_GROUP, filesGroup);<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> if (filesUser != null) conf.set(CONF_FILES_USER, filesUser);<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> if (mappers > 0) {<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> conf.setInt(CONF_NUM_SPLITS, mappers);<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> conf.setInt(MR_NUM_MAPS, mappers);<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> }<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> conf.setInt(CONF_FILES_MODE, filesMode);<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> conf.setBoolean(CONF_CHECKSUM_VERIFY, verifyChecksum);<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> conf.set(CONF_OUTPUT_ROOT, outputRoot.toString());<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> conf.set(CONF_INPUT_ROOT, inputRoot.toString());<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> conf.setInt(CONF_BANDWIDTH_MB, bandwidthMB);<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> conf.set(CONF_SNAPSHOT_NAME, snapshotName);<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> conf.set(CONF_SNAPSHOT_DIR, snapshotDir.toString());<a name="line.914"></a> |
| <span class="sourceLineNo">915</span><a name="line.915"></a> |
| <span class="sourceLineNo">916</span> String jobname = conf.get(CONF_MR_JOB_NAME, "ExportSnapshot-" + snapshotName);<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> Job job = new Job(conf);<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> job.setJobName(jobname);<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> job.setJarByClass(ExportSnapshot.class);<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> TableMapReduceUtil.addDependencyJars(job);<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> job.setMapperClass(ExportMapper.class);<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> job.setInputFormatClass(ExportSnapshotInputFormat.class);<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> job.setOutputFormatClass(NullOutputFormat.class);<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> job.setMapSpeculativeExecution(false);<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> job.setNumReduceTasks(0);<a name="line.925"></a> |
| <span class="sourceLineNo">926</span><a name="line.926"></a> |
| <span class="sourceLineNo">927</span> // Acquire the delegation Tokens<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[] { inputRoot }, srcConf);<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[] { outputRoot }, destConf);<a name="line.931"></a> |
| <span class="sourceLineNo">932</span><a name="line.932"></a> |
| <span class="sourceLineNo">933</span> // Run the MR Job<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> if (!job.waitForCompletion(true)) {<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> throw new ExportSnapshotException(job.getStatus().getFailureInfo());<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> }<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> }<a name="line.937"></a> |
| <span class="sourceLineNo">938</span><a name="line.938"></a> |
| <span class="sourceLineNo">939</span> private void verifySnapshot(final Configuration baseConf, final FileSystem fs, final Path rootDir,<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> final Path snapshotDir) throws IOException {<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> // Update the conf with the current root dir, since may be a different cluster<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> Configuration conf = new Configuration(baseConf);<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> CommonFSUtils.setRootDir(conf, rootDir);<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> CommonFSUtils.setFsDefault(conf, CommonFSUtils.getRootDir(conf));<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> SnapshotDescription snapshotDesc = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> SnapshotReferenceUtil.verifySnapshot(conf, fs, snapshotDir, snapshotDesc);<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> }<a name="line.947"></a> |
| <span class="sourceLineNo">948</span><a name="line.948"></a> |
| <span class="sourceLineNo">949</span> private void setConfigParallel(FileSystem outputFs, List<Path> traversedPath,<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> BiConsumer<FileSystem, Path> task, Configuration conf) throws IOException {<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> ExecutorService pool = Executors<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> .newFixedThreadPool(conf.getInt(CONF_COPY_MANIFEST_THREADS, DEFAULT_COPY_MANIFEST_THREADS));<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> List<Future<Void>> futures = new ArrayList<>();<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> for (Path dstPath : traversedPath) {<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> Future<Void> future = (Future<Void>) pool.submit(() -> task.accept(outputFs, dstPath));<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> futures.add(future);<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> }<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> try {<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> for (Future<Void> future : futures) {<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> future.get();<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> }<a name="line.961"></a> |
| <span class="sourceLineNo">962</span> } catch (InterruptedException | ExecutionException e) {<a name="line.962"></a> |
| <span class="sourceLineNo">963</span> throw new IOException(e);<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> } finally {<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> pool.shutdownNow();<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> }<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> }<a name="line.967"></a> |
| <span class="sourceLineNo">968</span><a name="line.968"></a> |
| <span class="sourceLineNo">969</span> private void setOwnerParallel(FileSystem outputFs, String filesUser, String filesGroup,<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> Configuration conf, List<Path> traversedPath) throws IOException {<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> setConfigParallel(outputFs, traversedPath, (fs, path) -> {<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> try {<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> fs.setOwner(path, filesUser, filesGroup);<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> } catch (IOException e) {<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> throw new RuntimeException(<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> "set owner for file " + path + " to " + filesUser + ":" + filesGroup + " failed", e);<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> }<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> }, conf);<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> }<a name="line.979"></a> |
| <span class="sourceLineNo">980</span><a name="line.980"></a> |
| <span class="sourceLineNo">981</span> private void setPermissionParallel(final FileSystem outputFs, final short filesMode,<a name="line.981"></a> |
| <span class="sourceLineNo">982</span> final List<Path> traversedPath, final Configuration conf) throws IOException {<a name="line.982"></a> |
| <span class="sourceLineNo">983</span> if (filesMode <= 0) {<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> return;<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> }<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> FsPermission perm = new FsPermission(filesMode);<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> setConfigParallel(outputFs, traversedPath, (fs, path) -> {<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> try {<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> fs.setPermission(path, perm);<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> } catch (IOException e) {<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> throw new RuntimeException(<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> "set permission for file " + path + " to " + filesMode + " failed", e);<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> }<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> }, conf);<a name="line.994"></a> |
| <span class="sourceLineNo">995</span> }<a name="line.995"></a> |
| <span class="sourceLineNo">996</span><a name="line.996"></a> |
| <span class="sourceLineNo">997</span> private boolean verifyTarget = true;<a name="line.997"></a> |
| <span class="sourceLineNo">998</span> private boolean verifySource = true;<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> private boolean verifyChecksum = true;<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> private String snapshotName = null;<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> private String targetName = null;<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> private boolean overwrite = false;<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> private String filesGroup = null;<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> private String filesUser = null;<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> private Path outputRoot = null;<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> private Path inputRoot = null;<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span> private int bandwidthMB = Integer.MAX_VALUE;<a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> private int filesMode = 0;<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> private int mappers = 0;<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> private boolean resetTtl = false;<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span><a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> @Override<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> protected void processOptions(CommandLine cmd) {<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> snapshotName = cmd.getOptionValue(Options.SNAPSHOT.getLongOpt(), snapshotName);<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> targetName = cmd.getOptionValue(Options.TARGET_NAME.getLongOpt(), targetName);<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> if (cmd.hasOption(Options.COPY_TO.getLongOpt())) {<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> outputRoot = new Path(cmd.getOptionValue(Options.COPY_TO.getLongOpt()));<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> }<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> if (cmd.hasOption(Options.COPY_FROM.getLongOpt())) {<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> inputRoot = new Path(cmd.getOptionValue(Options.COPY_FROM.getLongOpt()));<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> }<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> mappers = getOptionAsInt(cmd, Options.MAPPERS.getLongOpt(), mappers);<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> filesUser = cmd.getOptionValue(Options.CHUSER.getLongOpt(), filesUser);<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> filesGroup = cmd.getOptionValue(Options.CHGROUP.getLongOpt(), filesGroup);<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> filesMode = getOptionAsInt(cmd, Options.CHMOD.getLongOpt(), filesMode, 8);<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> bandwidthMB = getOptionAsInt(cmd, Options.BANDWIDTH.getLongOpt(), bandwidthMB);<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> overwrite = cmd.hasOption(Options.OVERWRITE.getLongOpt());<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> // And verifyChecksum and verifyTarget with values read from old args in processOldArgs(...).<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> verifyChecksum = !cmd.hasOption(Options.NO_CHECKSUM_VERIFY.getLongOpt());<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> verifyTarget = !cmd.hasOption(Options.NO_TARGET_VERIFY.getLongOpt());<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> verifySource = !cmd.hasOption(Options.NO_SOURCE_VERIFY.getLongOpt());<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> resetTtl = cmd.hasOption(Options.RESET_TTL.getLongOpt());<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> }<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span><a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> /**<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> * Execute the export snapshot by copying the snapshot metadata, hfiles and wals.<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> * @return 0 on success, and != 0 upon failure.<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> */<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> @Override<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> public int doWork() throws IOException {<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> Configuration conf = getConf();<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span><a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> // Check user options<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> if (snapshotName == null) {<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> System.err.println("Snapshot name not provided.");<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> LOG.error("Use -h or --help for usage instructions.");<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> return 0;<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> }<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span><a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> if (outputRoot == null) {<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> System.err<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> .println("Destination file-system (--" + Options.COPY_TO.getLongOpt() + ") not provided.");<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> LOG.error("Use -h or --help for usage instructions.");<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> return 0;<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> }<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span><a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> if (targetName == null) {<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> targetName = snapshotName;<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> }<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> if (inputRoot == null) {<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> inputRoot = CommonFSUtils.getRootDir(conf);<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> } else {<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> CommonFSUtils.setRootDir(conf, inputRoot);<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> }<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span><a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> FileSystem inputFs = FileSystem.get(inputRoot.toUri(), srcConf);<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> FileSystem outputFs = FileSystem.get(outputRoot.toUri(), destConf);<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> boolean skipTmp = conf.getBoolean(CONF_SKIP_TMP, false)<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> || conf.get(SnapshotDescriptionUtils.SNAPSHOT_WORKING_DIR) != null;<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshotName, inputRoot);<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> Path snapshotTmpDir =<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> SnapshotDescriptionUtils.getWorkingSnapshotDir(targetName, outputRoot, destConf);<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> Path outputSnapshotDir =<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> SnapshotDescriptionUtils.getCompletedSnapshotDir(targetName, outputRoot);<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> Path initialOutputSnapshotDir = skipTmp ? outputSnapshotDir : snapshotTmpDir;<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> LOG.debug("inputFs={}, inputRoot={}", inputFs.getUri().toString(), inputRoot);<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> LOG.debug("outputFs={}, outputRoot={}, skipTmp={}, initialOutputSnapshotDir={}", outputFs,<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> outputRoot.toString(), skipTmp, initialOutputSnapshotDir);<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span><a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> // Verify snapshot source before copying files<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> if (verifySource) {<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> LOG.info("Verify snapshot source, inputFs={}, inputRoot={}, snapshotDir={}.",<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> inputFs.getUri(), inputRoot, snapshotDir);<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> verifySnapshot(srcConf, inputFs, inputRoot, snapshotDir);<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> }<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span><a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> // Find the necessary directory which need to change owner and group<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> Path needSetOwnerDir = SnapshotDescriptionUtils.getSnapshotRootDir(outputRoot);<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> if (outputFs.exists(needSetOwnerDir)) {<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> if (skipTmp) {<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> needSetOwnerDir = outputSnapshotDir;<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> } else {<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> needSetOwnerDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(outputRoot, destConf);<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> if (outputFs.exists(needSetOwnerDir)) {<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> needSetOwnerDir = snapshotTmpDir;<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> }<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> }<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> }<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span><a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> // Check if the snapshot already exists<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> if (outputFs.exists(outputSnapshotDir)) {<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> if (overwrite) {<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> if (!outputFs.delete(outputSnapshotDir, true)) {<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> System.err.println("Unable to remove existing snapshot directory: " + outputSnapshotDir);<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> return 1;<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> }<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> } else {<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> System.err.println("The snapshot '" + targetName + "' already exists in the destination: "<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> + outputSnapshotDir);<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> return 1;<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> }<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> }<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span><a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> if (!skipTmp) {<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> // Check if the snapshot already in-progress<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> if (outputFs.exists(snapshotTmpDir)) {<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> if (overwrite) {<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span> if (!outputFs.delete(snapshotTmpDir, true)) {<a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> System.err<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> .println("Unable to remove existing snapshot tmp directory: " + snapshotTmpDir);<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> return 1;<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> }<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> } else {<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> System.err<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> .println("A snapshot with the same name '" + targetName + "' may be in-progress");<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> System.err<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> .println("Please check " + snapshotTmpDir + ". If the snapshot has completed, ");<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> System.err<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> .println("consider removing " + snapshotTmpDir + " by using the -overwrite option");<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> return 1;<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> }<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> }<a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> }<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span><a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> // Step 1 - Copy fs1:/.snapshot/<snapshot> to fs2:/.snapshot/.tmp/<snapshot><a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> // The snapshot references must be copied before the hfiles otherwise the cleaner<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span> // will remove them because they are unreferenced.<a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> List<Path> travesedPaths = new ArrayList<>();<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> boolean copySucceeded = false;<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span> try {<a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> LOG.info("Copy Snapshot Manifest from " + snapshotDir + " to " + initialOutputSnapshotDir);<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> travesedPaths =<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> FSUtils.copyFilesParallel(inputFs, snapshotDir, outputFs, initialOutputSnapshotDir, conf,<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> conf.getInt(CONF_COPY_MANIFEST_THREADS, DEFAULT_COPY_MANIFEST_THREADS));<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> copySucceeded = true;<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> } catch (IOException e) {<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> throw new ExportSnapshotException("Failed to copy the snapshot directory: from=" + snapshotDir<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> + " to=" + initialOutputSnapshotDir, e);<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> } finally {<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> if (copySucceeded) {<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> if (filesUser != null || filesGroup != null) {<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> LOG.warn(<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> (filesUser == null ? "" : "Change the owner of " + needSetOwnerDir + " to " + filesUser)<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> + (filesGroup == null<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> ? ""<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> : ", Change the group of " + needSetOwnerDir + " to " + filesGroup));<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> setOwnerParallel(outputFs, filesUser, filesGroup, conf, travesedPaths);<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> }<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> if (filesMode > 0) {<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> LOG.warn("Change the permission of " + needSetOwnerDir + " to " + filesMode);<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> setPermissionParallel(outputFs, (short) filesMode, travesedPaths, conf);<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> }<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> }<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span> }<a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span><a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> // Write a new .snapshotinfo if the target name is different from the source name or we want to<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span> // reset TTL for target snapshot.<a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> if (!targetName.equals(snapshotName) || resetTtl) {<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> SnapshotDescription.Builder snapshotDescBuilder =<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> SnapshotDescriptionUtils.readSnapshotInfo(inputFs, snapshotDir).toBuilder();<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> if (!targetName.equals(snapshotName)) {<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> snapshotDescBuilder.setName(targetName);<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> }<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> if (resetTtl) {<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> snapshotDescBuilder.setTtl(HConstants.DEFAULT_SNAPSHOT_TTL);<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span> }<a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> SnapshotDescriptionUtils.writeSnapshotInfo(snapshotDescBuilder.build(),<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> initialOutputSnapshotDir, outputFs);<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span> if (filesUser != null || filesGroup != null) {<a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> outputFs.setOwner(<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span> new Path(initialOutputSnapshotDir, SnapshotDescriptionUtils.SNAPSHOTINFO_FILE), filesUser,<a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> filesGroup);<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> }<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> if (filesMode > 0) {<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> outputFs.setPermission(<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> new Path(initialOutputSnapshotDir, SnapshotDescriptionUtils.SNAPSHOTINFO_FILE),<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> new FsPermission((short) filesMode));<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> }<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> }<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span><a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> // Step 2 - Start MR Job to copy files<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> // The snapshot references must be copied before the files otherwise the files gets removed<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> // by the HFileArchiver, since they have no references.<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> try {<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> runCopyJob(inputRoot, outputRoot, snapshotName, snapshotDir, verifyChecksum, filesUser,<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> filesGroup, filesMode, mappers, bandwidthMB);<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span><a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> LOG.info("Finalize the Snapshot Export");<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> if (!skipTmp) {<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> // Step 3 - Rename fs2:/.snapshot/.tmp/<snapshot> fs2:/.snapshot/<snapshot><a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> if (!outputFs.rename(snapshotTmpDir, outputSnapshotDir)) {<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span> throw new ExportSnapshotException("Unable to rename snapshot directory from="<a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span> + snapshotTmpDir + " to=" + outputSnapshotDir);<a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span> }<a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> }<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span><a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> // Step 4 - Verify snapshot integrity<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span> if (verifyTarget) {<a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span> LOG.info("Verify snapshot integrity");<a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span> verifySnapshot(destConf, outputFs, outputRoot, outputSnapshotDir);<a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> }<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span><a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> LOG.info("Export Completed: " + targetName);<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> return 0;<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> } catch (Exception e) {<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span> LOG.error("Snapshot export failed", e);<a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span> if (!skipTmp) {<a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> outputFs.delete(snapshotTmpDir, true);<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span> }<a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> outputFs.delete(outputSnapshotDir, true);<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span> return 1;<a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> }<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> }<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span><a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> @Override<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> protected void printUsage() {<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span> super.printUsage();<a name="line.1229"></a> |
| <span class="sourceLineNo">1230</span> System.out.println("\n" + "Examples:\n" + " hbase snapshot export \\\n"<a name="line.1230"></a> |
| <span class="sourceLineNo">1231</span> + " --snapshot MySnapshot --copy-to hdfs://srv2:8082/hbase \\\n"<a name="line.1231"></a> |
| <span class="sourceLineNo">1232</span> + " --chuser MyUser --chgroup MyGroup --chmod 700 --mappers 16\n" + "\n"<a name="line.1232"></a> |
| <span class="sourceLineNo">1233</span> + " hbase snapshot export \\\n"<a name="line.1233"></a> |
| <span class="sourceLineNo">1234</span> + " --snapshot MySnapshot --copy-from hdfs://srv2:8082/hbase \\\n"<a name="line.1234"></a> |
| <span class="sourceLineNo">1235</span> + " --copy-to hdfs://srv1:50070/hbase");<a name="line.1235"></a> |
| <span class="sourceLineNo">1236</span> }<a name="line.1236"></a> |
| <span class="sourceLineNo">1237</span><a name="line.1237"></a> |
| <span class="sourceLineNo">1238</span> @Override<a name="line.1238"></a> |
| <span class="sourceLineNo">1239</span> protected void addOptions() {<a name="line.1239"></a> |
| <span class="sourceLineNo">1240</span> addRequiredOption(Options.SNAPSHOT);<a name="line.1240"></a> |
| <span class="sourceLineNo">1241</span> addOption(Options.COPY_TO);<a name="line.1241"></a> |
| <span class="sourceLineNo">1242</span> addOption(Options.COPY_FROM);<a name="line.1242"></a> |
| <span class="sourceLineNo">1243</span> addOption(Options.TARGET_NAME);<a name="line.1243"></a> |
| <span class="sourceLineNo">1244</span> addOption(Options.NO_CHECKSUM_VERIFY);<a name="line.1244"></a> |
| <span class="sourceLineNo">1245</span> addOption(Options.NO_TARGET_VERIFY);<a name="line.1245"></a> |
| <span class="sourceLineNo">1246</span> addOption(Options.NO_SOURCE_VERIFY);<a name="line.1246"></a> |
| <span class="sourceLineNo">1247</span> addOption(Options.OVERWRITE);<a name="line.1247"></a> |
| <span class="sourceLineNo">1248</span> addOption(Options.CHUSER);<a name="line.1248"></a> |
| <span class="sourceLineNo">1249</span> addOption(Options.CHGROUP);<a name="line.1249"></a> |
| <span class="sourceLineNo">1250</span> addOption(Options.CHMOD);<a name="line.1250"></a> |
| <span class="sourceLineNo">1251</span> addOption(Options.MAPPERS);<a name="line.1251"></a> |
| <span class="sourceLineNo">1252</span> addOption(Options.BANDWIDTH);<a name="line.1252"></a> |
| <span class="sourceLineNo">1253</span> addOption(Options.RESET_TTL);<a name="line.1253"></a> |
| <span class="sourceLineNo">1254</span> }<a name="line.1254"></a> |
| <span class="sourceLineNo">1255</span><a name="line.1255"></a> |
| <span class="sourceLineNo">1256</span> public static void main(String[] args) {<a name="line.1256"></a> |
| <span class="sourceLineNo">1257</span> new ExportSnapshot().doStaticMain(args);<a name="line.1257"></a> |
| <span class="sourceLineNo">1258</span> }<a name="line.1258"></a> |
| <span class="sourceLineNo">1259</span>}<a name="line.1259"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
