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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.snapshot;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.BufferedInputStream;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.DataInput;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.DataOutput;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.FileNotFoundException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.IOException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.InputStream;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.ArrayList;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.Collections;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.Comparator;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.LinkedList;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.List;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.ExecutionException;</span> |
| <span class="source-line-no">032</span><span id="line-32">import java.util.concurrent.ExecutorService;</span> |
| <span class="source-line-no">033</span><span id="line-33">import java.util.concurrent.Executors;</span> |
| <span class="source-line-no">034</span><span id="line-34">import java.util.concurrent.Future;</span> |
| <span class="source-line-no">035</span><span id="line-35">import java.util.function.BiConsumer;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.fs.FSDataInputStream;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.fs.FSDataOutputStream;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.fs.FileChecksum;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.fs.FileStatus;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.fs.permission.FsPermission;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.apache.hadoop.hbase.io.FileLink;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.apache.hadoop.hbase.io.HFileLink;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hadoop.hbase.io.WALLink;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hadoop.hbase.io.hadoopbackport.ThrottledInputStream;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hadoop.hbase.mob.MobUtils;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hadoop.hbase.regionserver.StoreFileInfo;</span> |
| <span class="source-line-no">055</span><span id="line-55">import org.apache.hadoop.hbase.util.AbstractHBaseTool;</span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hadoop.hbase.util.CommonFSUtils;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">058</span><span id="line-58">import org.apache.hadoop.hbase.util.FSUtils;</span> |
| <span class="source-line-no">059</span><span id="line-59">import org.apache.hadoop.hbase.util.HFileArchiveUtil;</span> |
| <span class="source-line-no">060</span><span id="line-60">import org.apache.hadoop.hbase.util.Pair;</span> |
| <span class="source-line-no">061</span><span id="line-61">import org.apache.hadoop.io.BytesWritable;</span> |
| <span class="source-line-no">062</span><span id="line-62">import org.apache.hadoop.io.NullWritable;</span> |
| <span class="source-line-no">063</span><span id="line-63">import org.apache.hadoop.io.Writable;</span> |
| <span class="source-line-no">064</span><span id="line-64">import org.apache.hadoop.mapreduce.InputFormat;</span> |
| <span class="source-line-no">065</span><span id="line-65">import org.apache.hadoop.mapreduce.InputSplit;</span> |
| <span class="source-line-no">066</span><span id="line-66">import org.apache.hadoop.mapreduce.Job;</span> |
| <span class="source-line-no">067</span><span id="line-67">import org.apache.hadoop.mapreduce.JobContext;</span> |
| <span class="source-line-no">068</span><span id="line-68">import org.apache.hadoop.mapreduce.Mapper;</span> |
| <span class="source-line-no">069</span><span id="line-69">import org.apache.hadoop.mapreduce.RecordReader;</span> |
| <span class="source-line-no">070</span><span id="line-70">import org.apache.hadoop.mapreduce.TaskAttemptContext;</span> |
| <span class="source-line-no">071</span><span id="line-71">import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;</span> |
| <span class="source-line-no">072</span><span id="line-72">import org.apache.hadoop.mapreduce.security.TokenCache;</span> |
| <span class="source-line-no">073</span><span id="line-73">import org.apache.hadoop.util.StringUtils;</span> |
| <span class="source-line-no">074</span><span id="line-74">import org.apache.hadoop.util.Tool;</span> |
| <span class="source-line-no">075</span><span id="line-75">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">076</span><span id="line-76">import org.slf4j.Logger;</span> |
| <span class="source-line-no">077</span><span id="line-77">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79">import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;</span> |
| <span class="source-line-no">080</span><span id="line-80">import org.apache.hbase.thirdparty.org.apache.commons.cli.Option;</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">083</span><span id="line-83">import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;</span> |
| <span class="source-line-no">084</span><span id="line-84">import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotFileInfo;</span> |
| <span class="source-line-no">085</span><span id="line-85">import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotRegionManifest;</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87">/**</span> |
| <span class="source-line-no">088</span><span id="line-88"> * Export the specified snapshot to a given FileSystem. The .snapshot/name folder is copied to the</span> |
| <span class="source-line-no">089</span><span id="line-89"> * destination cluster and then all the hfiles/wals are copied using a Map-Reduce Job in the</span> |
| <span class="source-line-no">090</span><span id="line-90"> * .archive/ location. When everything is done, the second cluster can restore the snapshot.</span> |
| <span class="source-line-no">091</span><span id="line-91"> */</span> |
| <span class="source-line-no">092</span><span id="line-92">@InterfaceAudience.Public</span> |
| <span class="source-line-no">093</span><span id="line-93">public class ExportSnapshot extends AbstractHBaseTool implements Tool {</span> |
| <span class="source-line-no">094</span><span id="line-94"> public static final String NAME = "exportsnapshot";</span> |
| <span class="source-line-no">095</span><span id="line-95"> /** Configuration prefix for overrides for the source filesystem */</span> |
| <span class="source-line-no">096</span><span id="line-96"> public static final String CONF_SOURCE_PREFIX = NAME + ".from.";</span> |
| <span class="source-line-no">097</span><span id="line-97"> /** Configuration prefix for overrides for the destination filesystem */</span> |
| <span class="source-line-no">098</span><span id="line-98"> public static final String CONF_DEST_PREFIX = NAME + ".to.";</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> private static final Logger LOG = LoggerFactory.getLogger(ExportSnapshot.class);</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> private static final String MR_NUM_MAPS = "mapreduce.job.maps";</span> |
| <span class="source-line-no">103</span><span id="line-103"> private static final String CONF_NUM_SPLITS = "snapshot.export.format.splits";</span> |
| <span class="source-line-no">104</span><span id="line-104"> private static final String CONF_SNAPSHOT_NAME = "snapshot.export.format.snapshot.name";</span> |
| <span class="source-line-no">105</span><span id="line-105"> private static final String CONF_SNAPSHOT_DIR = "snapshot.export.format.snapshot.dir";</span> |
| <span class="source-line-no">106</span><span id="line-106"> private static final String CONF_FILES_USER = "snapshot.export.files.attributes.user";</span> |
| <span class="source-line-no">107</span><span id="line-107"> private static final String CONF_FILES_GROUP = "snapshot.export.files.attributes.group";</span> |
| <span class="source-line-no">108</span><span id="line-108"> private static final String CONF_FILES_MODE = "snapshot.export.files.attributes.mode";</span> |
| <span class="source-line-no">109</span><span id="line-109"> private static final String CONF_CHECKSUM_VERIFY = "snapshot.export.checksum.verify";</span> |
| <span class="source-line-no">110</span><span id="line-110"> private static final String CONF_OUTPUT_ROOT = "snapshot.export.output.root";</span> |
| <span class="source-line-no">111</span><span id="line-111"> private static final String CONF_INPUT_ROOT = "snapshot.export.input.root";</span> |
| <span class="source-line-no">112</span><span id="line-112"> private static final String CONF_BUFFER_SIZE = "snapshot.export.buffer.size";</span> |
| <span class="source-line-no">113</span><span id="line-113"> private static final String CONF_REPORT_SIZE = "snapshot.export.report.size";</span> |
| <span class="source-line-no">114</span><span id="line-114"> private static final String CONF_MAP_GROUP = "snapshot.export.default.map.group";</span> |
| <span class="source-line-no">115</span><span id="line-115"> private static final String CONF_BANDWIDTH_MB = "snapshot.export.map.bandwidth.mb";</span> |
| <span class="source-line-no">116</span><span id="line-116"> private static final String CONF_MR_JOB_NAME = "mapreduce.job.name";</span> |
| <span class="source-line-no">117</span><span id="line-117"> protected static final String CONF_SKIP_TMP = "snapshot.export.skip.tmp";</span> |
| <span class="source-line-no">118</span><span id="line-118"> private static final String CONF_COPY_MANIFEST_THREADS =</span> |
| <span class="source-line-no">119</span><span id="line-119"> "snapshot.export.copy.references.threads";</span> |
| <span class="source-line-no">120</span><span id="line-120"> private static final int DEFAULT_COPY_MANIFEST_THREADS =</span> |
| <span class="source-line-no">121</span><span id="line-121"> Runtime.getRuntime().availableProcessors();</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> static class Testing {</span> |
| <span class="source-line-no">124</span><span id="line-124"> static final String CONF_TEST_FAILURE = "test.snapshot.export.failure";</span> |
| <span class="source-line-no">125</span><span id="line-125"> static final String CONF_TEST_FAILURE_COUNT = "test.snapshot.export.failure.count";</span> |
| <span class="source-line-no">126</span><span id="line-126"> int failuresCountToInject = 0;</span> |
| <span class="source-line-no">127</span><span id="line-127"> int injectedFailureCount = 0;</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"></span> |
| <span class="source-line-no">130</span><span id="line-130"> // Command line options and defaults.</span> |
| <span class="source-line-no">131</span><span id="line-131"> static final class Options {</span> |
| <span class="source-line-no">132</span><span id="line-132"> static final Option SNAPSHOT = new Option(null, "snapshot", true, "Snapshot to restore.");</span> |
| <span class="source-line-no">133</span><span id="line-133"> static final Option TARGET_NAME =</span> |
| <span class="source-line-no">134</span><span id="line-134"> new Option(null, "target", true, "Target name for the snapshot.");</span> |
| <span class="source-line-no">135</span><span id="line-135"> static final Option COPY_TO =</span> |
| <span class="source-line-no">136</span><span id="line-136"> new Option(null, "copy-to", true, "Remote " + "destination hdfs://");</span> |
| <span class="source-line-no">137</span><span id="line-137"> static final Option COPY_FROM =</span> |
| <span class="source-line-no">138</span><span id="line-138"> new Option(null, "copy-from", true, "Input folder hdfs:// (default hbase.rootdir)");</span> |
| <span class="source-line-no">139</span><span id="line-139"> static final Option NO_CHECKSUM_VERIFY = new Option(null, "no-checksum-verify", false,</span> |
| <span class="source-line-no">140</span><span id="line-140"> "Do not verify checksum, use name+length only.");</span> |
| <span class="source-line-no">141</span><span id="line-141"> static final Option NO_TARGET_VERIFY = new Option(null, "no-target-verify", false,</span> |
| <span class="source-line-no">142</span><span id="line-142"> "Do not verify the exported snapshot's expiration status and integrity.");</span> |
| <span class="source-line-no">143</span><span id="line-143"> static final Option NO_SOURCE_VERIFY = new Option(null, "no-source-verify", false,</span> |
| <span class="source-line-no">144</span><span id="line-144"> "Do not verify the source snapshot's expiration status and integrity.");</span> |
| <span class="source-line-no">145</span><span id="line-145"> static final Option OVERWRITE =</span> |
| <span class="source-line-no">146</span><span id="line-146"> new Option(null, "overwrite", false, "Rewrite the snapshot manifest if already exists.");</span> |
| <span class="source-line-no">147</span><span id="line-147"> static final Option CHUSER =</span> |
| <span class="source-line-no">148</span><span id="line-148"> new Option(null, "chuser", true, "Change the owner of the files to the specified one.");</span> |
| <span class="source-line-no">149</span><span id="line-149"> static final Option CHGROUP =</span> |
| <span class="source-line-no">150</span><span id="line-150"> new Option(null, "chgroup", true, "Change the group of the files to the specified one.");</span> |
| <span class="source-line-no">151</span><span id="line-151"> static final Option CHMOD =</span> |
| <span class="source-line-no">152</span><span id="line-152"> new Option(null, "chmod", true, "Change the permission of the files to the specified one.");</span> |
| <span class="source-line-no">153</span><span id="line-153"> static final Option MAPPERS = new Option(null, "mappers", true,</span> |
| <span class="source-line-no">154</span><span id="line-154"> "Number of mappers to use during the copy (mapreduce.job.maps).");</span> |
| <span class="source-line-no">155</span><span id="line-155"> static final Option BANDWIDTH =</span> |
| <span class="source-line-no">156</span><span id="line-156"> new Option(null, "bandwidth", true, "Limit bandwidth to this value in MB/second.");</span> |
| <span class="source-line-no">157</span><span id="line-157"> static final Option RESET_TTL =</span> |
| <span class="source-line-no">158</span><span id="line-158"> new Option(null, "reset-ttl", false, "Do not copy TTL for the snapshot");</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"></span> |
| <span class="source-line-no">161</span><span id="line-161"> // Export Map-Reduce Counters, to keep track of the progress</span> |
| <span class="source-line-no">162</span><span id="line-162"> public enum Counter {</span> |
| <span class="source-line-no">163</span><span id="line-163"> MISSING_FILES,</span> |
| <span class="source-line-no">164</span><span id="line-164"> FILES_COPIED,</span> |
| <span class="source-line-no">165</span><span id="line-165"> FILES_SKIPPED,</span> |
| <span class="source-line-no">166</span><span id="line-166"> COPY_FAILED,</span> |
| <span class="source-line-no">167</span><span id="line-167"> BYTES_EXPECTED,</span> |
| <span class="source-line-no">168</span><span id="line-168"> BYTES_SKIPPED,</span> |
| <span class="source-line-no">169</span><span id="line-169"> BYTES_COPIED</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> /**</span> |
| <span class="source-line-no">173</span><span id="line-173"> * Indicates the checksum comparison result.</span> |
| <span class="source-line-no">174</span><span id="line-174"> */</span> |
| <span class="source-line-no">175</span><span id="line-175"> public enum ChecksumComparison {</span> |
| <span class="source-line-no">176</span><span id="line-176"> TRUE, // checksum comparison is compatible and true.</span> |
| <span class="source-line-no">177</span><span id="line-177"> FALSE, // checksum comparison is compatible and false.</span> |
| <span class="source-line-no">178</span><span id="line-178"> INCOMPATIBLE, // checksum comparison is not compatible.</span> |
| <span class="source-line-no">179</span><span id="line-179"> }</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> private static class ExportMapper</span> |
| <span class="source-line-no">182</span><span id="line-182"> extends Mapper<BytesWritable, NullWritable, NullWritable, NullWritable> {</span> |
| <span class="source-line-no">183</span><span id="line-183"> private static final Logger LOG = LoggerFactory.getLogger(ExportMapper.class);</span> |
| <span class="source-line-no">184</span><span id="line-184"> final static int REPORT_SIZE = 1 * 1024 * 1024;</span> |
| <span class="source-line-no">185</span><span id="line-185"> final static int BUFFER_SIZE = 64 * 1024;</span> |
| <span class="source-line-no">186</span><span id="line-186"></span> |
| <span class="source-line-no">187</span><span id="line-187"> private boolean verifyChecksum;</span> |
| <span class="source-line-no">188</span><span id="line-188"> private String filesGroup;</span> |
| <span class="source-line-no">189</span><span id="line-189"> private String filesUser;</span> |
| <span class="source-line-no">190</span><span id="line-190"> private short filesMode;</span> |
| <span class="source-line-no">191</span><span id="line-191"> private int bufferSize;</span> |
| <span class="source-line-no">192</span><span id="line-192"> private int reportSize;</span> |
| <span class="source-line-no">193</span><span id="line-193"></span> |
| <span class="source-line-no">194</span><span id="line-194"> private FileSystem outputFs;</span> |
| <span class="source-line-no">195</span><span id="line-195"> private Path outputArchive;</span> |
| <span class="source-line-no">196</span><span id="line-196"> private Path outputRoot;</span> |
| <span class="source-line-no">197</span><span id="line-197"></span> |
| <span class="source-line-no">198</span><span id="line-198"> private FileSystem inputFs;</span> |
| <span class="source-line-no">199</span><span id="line-199"> private Path inputArchive;</span> |
| <span class="source-line-no">200</span><span id="line-200"> private Path inputRoot;</span> |
| <span class="source-line-no">201</span><span id="line-201"></span> |
| <span class="source-line-no">202</span><span id="line-202"> private static Testing testing = new Testing();</span> |
| <span class="source-line-no">203</span><span id="line-203"></span> |
| <span class="source-line-no">204</span><span id="line-204"> @Override</span> |
| <span class="source-line-no">205</span><span id="line-205"> public void setup(Context context) throws IOException {</span> |
| <span class="source-line-no">206</span><span id="line-206"> Configuration conf = context.getConfiguration();</span> |
| <span class="source-line-no">207</span><span id="line-207"></span> |
| <span class="source-line-no">208</span><span id="line-208"> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);</span> |
| <span class="source-line-no">209</span><span id="line-209"> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);</span> |
| <span class="source-line-no">210</span><span id="line-210"></span> |
| <span class="source-line-no">211</span><span id="line-211"> verifyChecksum = conf.getBoolean(CONF_CHECKSUM_VERIFY, true);</span> |
| <span class="source-line-no">212</span><span id="line-212"></span> |
| <span class="source-line-no">213</span><span id="line-213"> filesGroup = conf.get(CONF_FILES_GROUP);</span> |
| <span class="source-line-no">214</span><span id="line-214"> filesUser = conf.get(CONF_FILES_USER);</span> |
| <span class="source-line-no">215</span><span id="line-215"> filesMode = (short) conf.getInt(CONF_FILES_MODE, 0);</span> |
| <span class="source-line-no">216</span><span id="line-216"> outputRoot = new Path(conf.get(CONF_OUTPUT_ROOT));</span> |
| <span class="source-line-no">217</span><span id="line-217"> inputRoot = new Path(conf.get(CONF_INPUT_ROOT));</span> |
| <span class="source-line-no">218</span><span id="line-218"></span> |
| <span class="source-line-no">219</span><span id="line-219"> inputArchive = new Path(inputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);</span> |
| <span class="source-line-no">220</span><span id="line-220"> outputArchive = new Path(outputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);</span> |
| <span class="source-line-no">221</span><span id="line-221"></span> |
| <span class="source-line-no">222</span><span id="line-222"> try {</span> |
| <span class="source-line-no">223</span><span id="line-223"> inputFs = FileSystem.get(inputRoot.toUri(), srcConf);</span> |
| <span class="source-line-no">224</span><span id="line-224"> } catch (IOException e) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> throw new IOException("Could not get the input FileSystem with root=" + inputRoot, e);</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"></span> |
| <span class="source-line-no">228</span><span id="line-228"> try {</span> |
| <span class="source-line-no">229</span><span id="line-229"> outputFs = FileSystem.get(outputRoot.toUri(), destConf);</span> |
| <span class="source-line-no">230</span><span id="line-230"> } catch (IOException e) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> throw new IOException("Could not get the output FileSystem with root=" + outputRoot, e);</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> // Use the default block size of the outputFs if bigger</span> |
| <span class="source-line-no">235</span><span id="line-235"> int defaultBlockSize = Math.max((int) outputFs.getDefaultBlockSize(outputRoot), BUFFER_SIZE);</span> |
| <span class="source-line-no">236</span><span id="line-236"> bufferSize = conf.getInt(CONF_BUFFER_SIZE, defaultBlockSize);</span> |
| <span class="source-line-no">237</span><span id="line-237"> LOG.info("Using bufferSize=" + StringUtils.humanReadableInt(bufferSize));</span> |
| <span class="source-line-no">238</span><span id="line-238"> reportSize = conf.getInt(CONF_REPORT_SIZE, REPORT_SIZE);</span> |
| <span class="source-line-no">239</span><span id="line-239"></span> |
| <span class="source-line-no">240</span><span id="line-240"> for (Counter c : Counter.values()) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> context.getCounter(c).increment(0);</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"> if (context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) {</span> |
| <span class="source-line-no">244</span><span id="line-244"> testing.failuresCountToInject = conf.getInt(Testing.CONF_TEST_FAILURE_COUNT, 0);</span> |
| <span class="source-line-no">245</span><span id="line-245"> // Get number of times we have already injected failure based on attempt number of this</span> |
| <span class="source-line-no">246</span><span id="line-246"> // task.</span> |
| <span class="source-line-no">247</span><span id="line-247"> testing.injectedFailureCount = context.getTaskAttemptID().getId();</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"> }</span> |
| <span class="source-line-no">250</span><span id="line-250"></span> |
| <span class="source-line-no">251</span><span id="line-251"> @Override</span> |
| <span class="source-line-no">252</span><span id="line-252"> public void map(BytesWritable key, NullWritable value, Context context)</span> |
| <span class="source-line-no">253</span><span id="line-253"> throws InterruptedException, IOException {</span> |
| <span class="source-line-no">254</span><span id="line-254"> SnapshotFileInfo inputInfo = SnapshotFileInfo.parseFrom(key.copyBytes());</span> |
| <span class="source-line-no">255</span><span id="line-255"> Path outputPath = getOutputPath(inputInfo);</span> |
| <span class="source-line-no">256</span><span id="line-256"></span> |
| <span class="source-line-no">257</span><span id="line-257"> copyFile(context, inputInfo, outputPath);</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"></span> |
| <span class="source-line-no">260</span><span id="line-260"> /**</span> |
| <span class="source-line-no">261</span><span id="line-261"> * Returns the location where the inputPath will be copied.</span> |
| <span class="source-line-no">262</span><span id="line-262"> */</span> |
| <span class="source-line-no">263</span><span id="line-263"> private Path getOutputPath(final SnapshotFileInfo inputInfo) throws IOException {</span> |
| <span class="source-line-no">264</span><span id="line-264"> Path path = null;</span> |
| <span class="source-line-no">265</span><span id="line-265"> switch (inputInfo.getType()) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> case HFILE:</span> |
| <span class="source-line-no">267</span><span id="line-267"> Path inputPath = new Path(inputInfo.getHfile());</span> |
| <span class="source-line-no">268</span><span id="line-268"> String family = inputPath.getParent().getName();</span> |
| <span class="source-line-no">269</span><span id="line-269"> TableName table = HFileLink.getReferencedTableName(inputPath.getName());</span> |
| <span class="source-line-no">270</span><span id="line-270"> String region = HFileLink.getReferencedRegionName(inputPath.getName());</span> |
| <span class="source-line-no">271</span><span id="line-271"> String hfile = HFileLink.getReferencedHFileName(inputPath.getName());</span> |
| <span class="source-line-no">272</span><span id="line-272"> path = new Path(CommonFSUtils.getTableDir(new Path("./"), table),</span> |
| <span class="source-line-no">273</span><span id="line-273"> new Path(region, new Path(family, hfile)));</span> |
| <span class="source-line-no">274</span><span id="line-274"> break;</span> |
| <span class="source-line-no">275</span><span id="line-275"> case WAL:</span> |
| <span class="source-line-no">276</span><span id="line-276"> LOG.warn("snapshot does not keeps WALs: " + inputInfo);</span> |
| <span class="source-line-no">277</span><span id="line-277"> break;</span> |
| <span class="source-line-no">278</span><span id="line-278"> default:</span> |
| <span class="source-line-no">279</span><span id="line-279"> throw new IOException("Invalid File Type: " + inputInfo.getType().toString());</span> |
| <span class="source-line-no">280</span><span id="line-280"> }</span> |
| <span class="source-line-no">281</span><span id="line-281"> return new Path(outputArchive, path);</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"></span> |
| <span class="source-line-no">284</span><span id="line-284"> @SuppressWarnings("checkstyle:linelength")</span> |
| <span class="source-line-no">285</span><span id="line-285"> /**</span> |
| <span class="source-line-no">286</span><span id="line-286"> * Used by TestExportSnapshot to test for retries when failures happen. Failure is injected in</span> |
| <span class="source-line-no">287</span><span id="line-287"> * {@link #copyFile(Mapper.Context, org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotFileInfo, Path)}.</span> |
| <span class="source-line-no">288</span><span id="line-288"> */</span> |
| <span class="source-line-no">289</span><span id="line-289"> private void injectTestFailure(final Context context, final SnapshotFileInfo inputInfo)</span> |
| <span class="source-line-no">290</span><span id="line-290"> throws IOException {</span> |
| <span class="source-line-no">291</span><span id="line-291"> if (!context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) return;</span> |
| <span class="source-line-no">292</span><span id="line-292"> if (testing.injectedFailureCount >= testing.failuresCountToInject) return;</span> |
| <span class="source-line-no">293</span><span id="line-293"> testing.injectedFailureCount++;</span> |
| <span class="source-line-no">294</span><span id="line-294"> context.getCounter(Counter.COPY_FAILED).increment(1);</span> |
| <span class="source-line-no">295</span><span id="line-295"> LOG.debug("Injecting failure. Count: " + testing.injectedFailureCount);</span> |
| <span class="source-line-no">296</span><span id="line-296"> throw new IOException(String.format("TEST FAILURE (%d of max %d): Unable to copy input=%s",</span> |
| <span class="source-line-no">297</span><span id="line-297"> testing.injectedFailureCount, testing.failuresCountToInject, inputInfo));</span> |
| <span class="source-line-no">298</span><span id="line-298"> }</span> |
| <span class="source-line-no">299</span><span id="line-299"></span> |
| <span class="source-line-no">300</span><span id="line-300"> private void copyFile(final Context context, final SnapshotFileInfo inputInfo,</span> |
| <span class="source-line-no">301</span><span id="line-301"> final Path outputPath) throws IOException {</span> |
| <span class="source-line-no">302</span><span id="line-302"> // Get the file information</span> |
| <span class="source-line-no">303</span><span id="line-303"> FileStatus inputStat = getSourceFileStatus(context, inputInfo);</span> |
| <span class="source-line-no">304</span><span id="line-304"></span> |
| <span class="source-line-no">305</span><span id="line-305"> // Verify if the output file exists and is the same that we want to copy</span> |
| <span class="source-line-no">306</span><span id="line-306"> if (outputFs.exists(outputPath)) {</span> |
| <span class="source-line-no">307</span><span id="line-307"> FileStatus outputStat = outputFs.getFileStatus(outputPath);</span> |
| <span class="source-line-no">308</span><span id="line-308"> if (outputStat != null && sameFile(inputStat, outputStat)) {</span> |
| <span class="source-line-no">309</span><span id="line-309"> LOG.info("Skip copy " + inputStat.getPath() + " to " + outputPath + ", same file.");</span> |
| <span class="source-line-no">310</span><span id="line-310"> context.getCounter(Counter.FILES_SKIPPED).increment(1);</span> |
| <span class="source-line-no">311</span><span id="line-311"> context.getCounter(Counter.BYTES_SKIPPED).increment(inputStat.getLen());</span> |
| <span class="source-line-no">312</span><span id="line-312"> return;</span> |
| <span class="source-line-no">313</span><span id="line-313"> }</span> |
| <span class="source-line-no">314</span><span id="line-314"> }</span> |
| <span class="source-line-no">315</span><span id="line-315"></span> |
| <span class="source-line-no">316</span><span id="line-316"> InputStream in = openSourceFile(context, inputInfo);</span> |
| <span class="source-line-no">317</span><span id="line-317"> int bandwidthMB = context.getConfiguration().getInt(CONF_BANDWIDTH_MB, 100);</span> |
| <span class="source-line-no">318</span><span id="line-318"> if (Integer.MAX_VALUE != bandwidthMB) {</span> |
| <span class="source-line-no">319</span><span id="line-319"> in = new ThrottledInputStream(new BufferedInputStream(in), bandwidthMB * 1024 * 1024L);</span> |
| <span class="source-line-no">320</span><span id="line-320"> }</span> |
| <span class="source-line-no">321</span><span id="line-321"></span> |
| <span class="source-line-no">322</span><span id="line-322"> Path inputPath = inputStat.getPath();</span> |
| <span class="source-line-no">323</span><span id="line-323"> try {</span> |
| <span class="source-line-no">324</span><span id="line-324"> context.getCounter(Counter.BYTES_EXPECTED).increment(inputStat.getLen());</span> |
| <span class="source-line-no">325</span><span id="line-325"></span> |
| <span class="source-line-no">326</span><span id="line-326"> // Ensure that the output folder is there and copy the file</span> |
| <span class="source-line-no">327</span><span id="line-327"> createOutputPath(outputPath.getParent());</span> |
| <span class="source-line-no">328</span><span id="line-328"> FSDataOutputStream out = outputFs.create(outputPath, true);</span> |
| <span class="source-line-no">329</span><span id="line-329"></span> |
| <span class="source-line-no">330</span><span id="line-330"> long stime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">331</span><span id="line-331"> long totalBytesWritten =</span> |
| <span class="source-line-no">332</span><span id="line-332"> copyData(context, inputPath, in, outputPath, out, inputStat.getLen());</span> |
| <span class="source-line-no">333</span><span id="line-333"></span> |
| <span class="source-line-no">334</span><span id="line-334"> // Verify the file length and checksum</span> |
| <span class="source-line-no">335</span><span id="line-335"> verifyCopyResult(inputStat, outputFs.getFileStatus(outputPath));</span> |
| <span class="source-line-no">336</span><span id="line-336"></span> |
| <span class="source-line-no">337</span><span id="line-337"> long etime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">338</span><span id="line-338"> LOG.info("copy completed for input=" + inputPath + " output=" + outputPath);</span> |
| <span class="source-line-no">339</span><span id="line-339"> LOG</span> |
| <span class="source-line-no">340</span><span id="line-340"> .info("size=" + totalBytesWritten + " (" + StringUtils.humanReadableInt(totalBytesWritten)</span> |
| <span class="source-line-no">341</span><span id="line-341"> + ")" + " time=" + StringUtils.formatTimeDiff(etime, stime) + String</span> |
| <span class="source-line-no">342</span><span id="line-342"> .format(" %.3fM/sec", (totalBytesWritten / ((etime - stime) / 1000.0)) / 1048576.0));</span> |
| <span class="source-line-no">343</span><span id="line-343"> context.getCounter(Counter.FILES_COPIED).increment(1);</span> |
| <span class="source-line-no">344</span><span id="line-344"></span> |
| <span class="source-line-no">345</span><span id="line-345"> // Try to Preserve attributes</span> |
| <span class="source-line-no">346</span><span id="line-346"> if (!preserveAttributes(outputPath, inputStat)) {</span> |
| <span class="source-line-no">347</span><span id="line-347"> LOG.warn("You may have to run manually chown on: " + outputPath);</span> |
| <span class="source-line-no">348</span><span id="line-348"> }</span> |
| <span class="source-line-no">349</span><span id="line-349"> } catch (IOException e) {</span> |
| <span class="source-line-no">350</span><span id="line-350"> LOG.error("Error copying " + inputPath + " to " + outputPath, e);</span> |
| <span class="source-line-no">351</span><span id="line-351"> context.getCounter(Counter.COPY_FAILED).increment(1);</span> |
| <span class="source-line-no">352</span><span id="line-352"> throw e;</span> |
| <span class="source-line-no">353</span><span id="line-353"> } finally {</span> |
| <span class="source-line-no">354</span><span id="line-354"> injectTestFailure(context, inputInfo);</span> |
| <span class="source-line-no">355</span><span id="line-355"> }</span> |
| <span class="source-line-no">356</span><span id="line-356"> }</span> |
| <span class="source-line-no">357</span><span id="line-357"></span> |
| <span class="source-line-no">358</span><span id="line-358"> /**</span> |
| <span class="source-line-no">359</span><span id="line-359"> * Create the output folder and optionally set ownership.</span> |
| <span class="source-line-no">360</span><span id="line-360"> */</span> |
| <span class="source-line-no">361</span><span id="line-361"> private void createOutputPath(final Path path) throws IOException {</span> |
| <span class="source-line-no">362</span><span id="line-362"> if (filesUser == null && filesGroup == null) {</span> |
| <span class="source-line-no">363</span><span id="line-363"> outputFs.mkdirs(path);</span> |
| <span class="source-line-no">364</span><span id="line-364"> } else {</span> |
| <span class="source-line-no">365</span><span id="line-365"> Path parent = path.getParent();</span> |
| <span class="source-line-no">366</span><span id="line-366"> if (!outputFs.exists(parent) && !parent.isRoot()) {</span> |
| <span class="source-line-no">367</span><span id="line-367"> createOutputPath(parent);</span> |
| <span class="source-line-no">368</span><span id="line-368"> }</span> |
| <span class="source-line-no">369</span><span id="line-369"> outputFs.mkdirs(path);</span> |
| <span class="source-line-no">370</span><span id="line-370"> if (filesUser != null || filesGroup != null) {</span> |
| <span class="source-line-no">371</span><span id="line-371"> // override the owner when non-null user/group is specified</span> |
| <span class="source-line-no">372</span><span id="line-372"> outputFs.setOwner(path, filesUser, filesGroup);</span> |
| <span class="source-line-no">373</span><span id="line-373"> }</span> |
| <span class="source-line-no">374</span><span id="line-374"> if (filesMode > 0) {</span> |
| <span class="source-line-no">375</span><span id="line-375"> outputFs.setPermission(path, new FsPermission(filesMode));</span> |
| <span class="source-line-no">376</span><span id="line-376"> }</span> |
| <span class="source-line-no">377</span><span id="line-377"> }</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"></span> |
| <span class="source-line-no">380</span><span id="line-380"> /**</span> |
| <span class="source-line-no">381</span><span id="line-381"> * Try to Preserve the files attribute selected by the user copying them from the source file</span> |
| <span class="source-line-no">382</span><span id="line-382"> * This is only required when you are exporting as a different user than "hbase" or on a system</span> |
| <span class="source-line-no">383</span><span id="line-383"> * that doesn't have the "hbase" user. This is not considered a blocking failure since the user</span> |
| <span class="source-line-no">384</span><span id="line-384"> * can force a chmod with the user that knows is available on the system.</span> |
| <span class="source-line-no">385</span><span id="line-385"> */</span> |
| <span class="source-line-no">386</span><span id="line-386"> private boolean preserveAttributes(final Path path, final FileStatus refStat) {</span> |
| <span class="source-line-no">387</span><span id="line-387"> FileStatus stat;</span> |
| <span class="source-line-no">388</span><span id="line-388"> try {</span> |
| <span class="source-line-no">389</span><span id="line-389"> stat = outputFs.getFileStatus(path);</span> |
| <span class="source-line-no">390</span><span id="line-390"> } catch (IOException e) {</span> |
| <span class="source-line-no">391</span><span id="line-391"> LOG.warn("Unable to get the status for file=" + path);</span> |
| <span class="source-line-no">392</span><span id="line-392"> return false;</span> |
| <span class="source-line-no">393</span><span id="line-393"> }</span> |
| <span class="source-line-no">394</span><span id="line-394"></span> |
| <span class="source-line-no">395</span><span id="line-395"> try {</span> |
| <span class="source-line-no">396</span><span id="line-396"> if (filesMode > 0 && stat.getPermission().toShort() != filesMode) {</span> |
| <span class="source-line-no">397</span><span id="line-397"> outputFs.setPermission(path, new FsPermission(filesMode));</span> |
| <span class="source-line-no">398</span><span id="line-398"> } else if (refStat != null && !stat.getPermission().equals(refStat.getPermission())) {</span> |
| <span class="source-line-no">399</span><span id="line-399"> outputFs.setPermission(path, refStat.getPermission());</span> |
| <span class="source-line-no">400</span><span id="line-400"> }</span> |
| <span class="source-line-no">401</span><span id="line-401"> } catch (IOException e) {</span> |
| <span class="source-line-no">402</span><span id="line-402"> LOG.warn("Unable to set the permission for file=" + stat.getPath() + ": " + e.getMessage());</span> |
| <span class="source-line-no">403</span><span id="line-403"> return false;</span> |
| <span class="source-line-no">404</span><span id="line-404"> }</span> |
| <span class="source-line-no">405</span><span id="line-405"></span> |
| <span class="source-line-no">406</span><span id="line-406"> boolean hasRefStat = (refStat != null);</span> |
| <span class="source-line-no">407</span><span id="line-407"> String user = stringIsNotEmpty(filesUser) || !hasRefStat ? filesUser : refStat.getOwner();</span> |
| <span class="source-line-no">408</span><span id="line-408"> String group = stringIsNotEmpty(filesGroup) || !hasRefStat ? filesGroup : refStat.getGroup();</span> |
| <span class="source-line-no">409</span><span id="line-409"> if (stringIsNotEmpty(user) || stringIsNotEmpty(group)) {</span> |
| <span class="source-line-no">410</span><span id="line-410"> try {</span> |
| <span class="source-line-no">411</span><span id="line-411"> if (!(user.equals(stat.getOwner()) && group.equals(stat.getGroup()))) {</span> |
| <span class="source-line-no">412</span><span id="line-412"> outputFs.setOwner(path, user, group);</span> |
| <span class="source-line-no">413</span><span id="line-413"> }</span> |
| <span class="source-line-no">414</span><span id="line-414"> } catch (IOException e) {</span> |
| <span class="source-line-no">415</span><span id="line-415"> LOG.warn(</span> |
| <span class="source-line-no">416</span><span id="line-416"> "Unable to set the owner/group for file=" + stat.getPath() + ": " + e.getMessage());</span> |
| <span class="source-line-no">417</span><span id="line-417"> LOG.warn("The user/group may not exist on the destination cluster: user=" + user</span> |
| <span class="source-line-no">418</span><span id="line-418"> + " group=" + group);</span> |
| <span class="source-line-no">419</span><span id="line-419"> return false;</span> |
| <span class="source-line-no">420</span><span id="line-420"> }</span> |
| <span class="source-line-no">421</span><span id="line-421"> }</span> |
| <span class="source-line-no">422</span><span id="line-422"></span> |
| <span class="source-line-no">423</span><span id="line-423"> return true;</span> |
| <span class="source-line-no">424</span><span id="line-424"> }</span> |
| <span class="source-line-no">425</span><span id="line-425"></span> |
| <span class="source-line-no">426</span><span id="line-426"> private boolean stringIsNotEmpty(final String str) {</span> |
| <span class="source-line-no">427</span><span id="line-427"> return str != null && str.length() > 0;</span> |
| <span class="source-line-no">428</span><span id="line-428"> }</span> |
| <span class="source-line-no">429</span><span id="line-429"></span> |
| <span class="source-line-no">430</span><span id="line-430"> private long copyData(final Context context, final Path inputPath, final InputStream in,</span> |
| <span class="source-line-no">431</span><span id="line-431"> final Path outputPath, final FSDataOutputStream out, final long inputFileSize)</span> |
| <span class="source-line-no">432</span><span id="line-432"> throws IOException {</span> |
| <span class="source-line-no">433</span><span id="line-433"> final String statusMessage =</span> |
| <span class="source-line-no">434</span><span id="line-434"> "copied %s/" + StringUtils.humanReadableInt(inputFileSize) + " (%.1f%%)";</span> |
| <span class="source-line-no">435</span><span id="line-435"></span> |
| <span class="source-line-no">436</span><span id="line-436"> try {</span> |
| <span class="source-line-no">437</span><span id="line-437"> byte[] buffer = new byte[bufferSize];</span> |
| <span class="source-line-no">438</span><span id="line-438"> long totalBytesWritten = 0;</span> |
| <span class="source-line-no">439</span><span id="line-439"> int reportBytes = 0;</span> |
| <span class="source-line-no">440</span><span id="line-440"> int bytesRead;</span> |
| <span class="source-line-no">441</span><span id="line-441"></span> |
| <span class="source-line-no">442</span><span id="line-442"> while ((bytesRead = in.read(buffer)) > 0) {</span> |
| <span class="source-line-no">443</span><span id="line-443"> out.write(buffer, 0, bytesRead);</span> |
| <span class="source-line-no">444</span><span id="line-444"> totalBytesWritten += bytesRead;</span> |
| <span class="source-line-no">445</span><span id="line-445"> reportBytes += bytesRead;</span> |
| <span class="source-line-no">446</span><span id="line-446"></span> |
| <span class="source-line-no">447</span><span id="line-447"> if (reportBytes >= reportSize) {</span> |
| <span class="source-line-no">448</span><span id="line-448"> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);</span> |
| <span class="source-line-no">449</span><span id="line-449"> context.setStatus(</span> |
| <span class="source-line-no">450</span><span id="line-450"> String.format(statusMessage, StringUtils.humanReadableInt(totalBytesWritten),</span> |
| <span class="source-line-no">451</span><span id="line-451"> (totalBytesWritten / (float) inputFileSize) * 100.0f) + " from " + inputPath</span> |
| <span class="source-line-no">452</span><span id="line-452"> + " to " + outputPath);</span> |
| <span class="source-line-no">453</span><span id="line-453"> reportBytes = 0;</span> |
| <span class="source-line-no">454</span><span id="line-454"> }</span> |
| <span class="source-line-no">455</span><span id="line-455"> }</span> |
| <span class="source-line-no">456</span><span id="line-456"></span> |
| <span class="source-line-no">457</span><span id="line-457"> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);</span> |
| <span class="source-line-no">458</span><span id="line-458"> context</span> |
| <span class="source-line-no">459</span><span id="line-459"> .setStatus(String.format(statusMessage, StringUtils.humanReadableInt(totalBytesWritten),</span> |
| <span class="source-line-no">460</span><span id="line-460"> (totalBytesWritten / (float) inputFileSize) * 100.0f) + " from " + inputPath + " to "</span> |
| <span class="source-line-no">461</span><span id="line-461"> + outputPath);</span> |
| <span class="source-line-no">462</span><span id="line-462"></span> |
| <span class="source-line-no">463</span><span id="line-463"> return totalBytesWritten;</span> |
| <span class="source-line-no">464</span><span id="line-464"> } finally {</span> |
| <span class="source-line-no">465</span><span id="line-465"> out.close();</span> |
| <span class="source-line-no">466</span><span id="line-466"> in.close();</span> |
| <span class="source-line-no">467</span><span id="line-467"> }</span> |
| <span class="source-line-no">468</span><span id="line-468"> }</span> |
| <span class="source-line-no">469</span><span id="line-469"></span> |
| <span class="source-line-no">470</span><span id="line-470"> /**</span> |
| <span class="source-line-no">471</span><span id="line-471"> * Try to open the "source" file. Throws an IOException if the communication with the inputFs</span> |
| <span class="source-line-no">472</span><span id="line-472"> * fail or if the file is not found.</span> |
| <span class="source-line-no">473</span><span id="line-473"> */</span> |
| <span class="source-line-no">474</span><span id="line-474"> private FSDataInputStream openSourceFile(Context context, final SnapshotFileInfo fileInfo)</span> |
| <span class="source-line-no">475</span><span id="line-475"> throws IOException {</span> |
| <span class="source-line-no">476</span><span id="line-476"> try {</span> |
| <span class="source-line-no">477</span><span id="line-477"> Configuration conf = context.getConfiguration();</span> |
| <span class="source-line-no">478</span><span id="line-478"> FileLink link = null;</span> |
| <span class="source-line-no">479</span><span id="line-479"> switch (fileInfo.getType()) {</span> |
| <span class="source-line-no">480</span><span id="line-480"> case HFILE:</span> |
| <span class="source-line-no">481</span><span id="line-481"> Path inputPath = new Path(fileInfo.getHfile());</span> |
| <span class="source-line-no">482</span><span id="line-482"> link = getFileLink(inputPath, conf);</span> |
| <span class="source-line-no">483</span><span id="line-483"> break;</span> |
| <span class="source-line-no">484</span><span id="line-484"> case WAL:</span> |
| <span class="source-line-no">485</span><span id="line-485"> String serverName = fileInfo.getWalServer();</span> |
| <span class="source-line-no">486</span><span id="line-486"> String logName = fileInfo.getWalName();</span> |
| <span class="source-line-no">487</span><span id="line-487"> link = new WALLink(inputRoot, serverName, logName);</span> |
| <span class="source-line-no">488</span><span id="line-488"> break;</span> |
| <span class="source-line-no">489</span><span id="line-489"> default:</span> |
| <span class="source-line-no">490</span><span id="line-490"> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());</span> |
| <span class="source-line-no">491</span><span id="line-491"> }</span> |
| <span class="source-line-no">492</span><span id="line-492"> return link.open(inputFs);</span> |
| <span class="source-line-no">493</span><span id="line-493"> } catch (IOException e) {</span> |
| <span class="source-line-no">494</span><span id="line-494"> context.getCounter(Counter.MISSING_FILES).increment(1);</span> |
| <span class="source-line-no">495</span><span id="line-495"> LOG.error("Unable to open source file=" + fileInfo.toString(), e);</span> |
| <span class="source-line-no">496</span><span id="line-496"> throw e;</span> |
| <span class="source-line-no">497</span><span id="line-497"> }</span> |
| <span class="source-line-no">498</span><span id="line-498"> }</span> |
| <span class="source-line-no">499</span><span id="line-499"></span> |
| <span class="source-line-no">500</span><span id="line-500"> private FileStatus getSourceFileStatus(Context context, final SnapshotFileInfo fileInfo)</span> |
| <span class="source-line-no">501</span><span id="line-501"> throws IOException {</span> |
| <span class="source-line-no">502</span><span id="line-502"> try {</span> |
| <span class="source-line-no">503</span><span id="line-503"> Configuration conf = context.getConfiguration();</span> |
| <span class="source-line-no">504</span><span id="line-504"> FileLink link = null;</span> |
| <span class="source-line-no">505</span><span id="line-505"> switch (fileInfo.getType()) {</span> |
| <span class="source-line-no">506</span><span id="line-506"> case HFILE:</span> |
| <span class="source-line-no">507</span><span id="line-507"> Path inputPath = new Path(fileInfo.getHfile());</span> |
| <span class="source-line-no">508</span><span id="line-508"> link = getFileLink(inputPath, conf);</span> |
| <span class="source-line-no">509</span><span id="line-509"> break;</span> |
| <span class="source-line-no">510</span><span id="line-510"> case WAL:</span> |
| <span class="source-line-no">511</span><span id="line-511"> link = new WALLink(inputRoot, fileInfo.getWalServer(), fileInfo.getWalName());</span> |
| <span class="source-line-no">512</span><span id="line-512"> break;</span> |
| <span class="source-line-no">513</span><span id="line-513"> default:</span> |
| <span class="source-line-no">514</span><span id="line-514"> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());</span> |
| <span class="source-line-no">515</span><span id="line-515"> }</span> |
| <span class="source-line-no">516</span><span id="line-516"> return link.getFileStatus(inputFs);</span> |
| <span class="source-line-no">517</span><span id="line-517"> } catch (FileNotFoundException e) {</span> |
| <span class="source-line-no">518</span><span id="line-518"> context.getCounter(Counter.MISSING_FILES).increment(1);</span> |
| <span class="source-line-no">519</span><span id="line-519"> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);</span> |
| <span class="source-line-no">520</span><span id="line-520"> throw e;</span> |
| <span class="source-line-no">521</span><span id="line-521"> } catch (IOException e) {</span> |
| <span class="source-line-no">522</span><span id="line-522"> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);</span> |
| <span class="source-line-no">523</span><span id="line-523"> throw e;</span> |
| <span class="source-line-no">524</span><span id="line-524"> }</span> |
| <span class="source-line-no">525</span><span id="line-525"> }</span> |
| <span class="source-line-no">526</span><span id="line-526"></span> |
| <span class="source-line-no">527</span><span id="line-527"> private FileLink getFileLink(Path path, Configuration conf) throws IOException {</span> |
| <span class="source-line-no">528</span><span id="line-528"> String regionName = HFileLink.getReferencedRegionName(path.getName());</span> |
| <span class="source-line-no">529</span><span id="line-529"> TableName tableName = HFileLink.getReferencedTableName(path.getName());</span> |
| <span class="source-line-no">530</span><span id="line-530"> if (MobUtils.getMobRegionInfo(tableName).getEncodedName().equals(regionName)) {</span> |
| <span class="source-line-no">531</span><span id="line-531"> return HFileLink.buildFromHFileLinkPattern(MobUtils.getQualifiedMobRootDir(conf),</span> |
| <span class="source-line-no">532</span><span id="line-532"> HFileArchiveUtil.getArchivePath(conf), path);</span> |
| <span class="source-line-no">533</span><span id="line-533"> }</span> |
| <span class="source-line-no">534</span><span id="line-534"> return HFileLink.buildFromHFileLinkPattern(inputRoot, inputArchive, path);</span> |
| <span class="source-line-no">535</span><span id="line-535"> }</span> |
| <span class="source-line-no">536</span><span id="line-536"></span> |
| <span class="source-line-no">537</span><span id="line-537"> private FileChecksum getFileChecksum(final FileSystem fs, final Path path) {</span> |
| <span class="source-line-no">538</span><span id="line-538"> try {</span> |
| <span class="source-line-no">539</span><span id="line-539"> return fs.getFileChecksum(path);</span> |
| <span class="source-line-no">540</span><span id="line-540"> } catch (IOException e) {</span> |
| <span class="source-line-no">541</span><span id="line-541"> LOG.warn("Unable to get checksum for file=" + path, e);</span> |
| <span class="source-line-no">542</span><span id="line-542"> return null;</span> |
| <span class="source-line-no">543</span><span id="line-543"> }</span> |
| <span class="source-line-no">544</span><span id="line-544"> }</span> |
| <span class="source-line-no">545</span><span id="line-545"></span> |
| <span class="source-line-no">546</span><span id="line-546"> /**</span> |
| <span class="source-line-no">547</span><span id="line-547"> * Utility to compare the file length and checksums for the paths specified.</span> |
| <span class="source-line-no">548</span><span id="line-548"> */</span> |
| <span class="source-line-no">549</span><span id="line-549"> private void verifyCopyResult(final FileStatus inputStat, final FileStatus outputStat)</span> |
| <span class="source-line-no">550</span><span id="line-550"> throws IOException {</span> |
| <span class="source-line-no">551</span><span id="line-551"> long inputLen = inputStat.getLen();</span> |
| <span class="source-line-no">552</span><span id="line-552"> long outputLen = outputStat.getLen();</span> |
| <span class="source-line-no">553</span><span id="line-553"> Path inputPath = inputStat.getPath();</span> |
| <span class="source-line-no">554</span><span id="line-554"> Path outputPath = outputStat.getPath();</span> |
| <span class="source-line-no">555</span><span id="line-555"></span> |
| <span class="source-line-no">556</span><span id="line-556"> if (inputLen != outputLen) {</span> |
| <span class="source-line-no">557</span><span id="line-557"> throw new IOException("Mismatch in length of input:" + inputPath + " (" + inputLen</span> |
| <span class="source-line-no">558</span><span id="line-558"> + ") and output:" + outputPath + " (" + outputLen + ")");</span> |
| <span class="source-line-no">559</span><span id="line-559"> }</span> |
| <span class="source-line-no">560</span><span id="line-560"></span> |
| <span class="source-line-no">561</span><span id="line-561"> // If length==0, we will skip checksum</span> |
| <span class="source-line-no">562</span><span id="line-562"> if (inputLen != 0 && verifyChecksum) {</span> |
| <span class="source-line-no">563</span><span id="line-563"> FileChecksum inChecksum = getFileChecksum(inputFs, inputStat.getPath());</span> |
| <span class="source-line-no">564</span><span id="line-564"> FileChecksum outChecksum = getFileChecksum(outputFs, outputStat.getPath());</span> |
| <span class="source-line-no">565</span><span id="line-565"></span> |
| <span class="source-line-no">566</span><span id="line-566"> ChecksumComparison checksumComparison = verifyChecksum(inChecksum, outChecksum);</span> |
| <span class="source-line-no">567</span><span id="line-567"> if (!checksumComparison.equals(ChecksumComparison.TRUE)) {</span> |
| <span class="source-line-no">568</span><span id="line-568"> StringBuilder errMessage = new StringBuilder("Checksum mismatch between ")</span> |
| <span class="source-line-no">569</span><span id="line-569"> .append(inputPath).append(" and ").append(outputPath).append(".");</span> |
| <span class="source-line-no">570</span><span id="line-570"></span> |
| <span class="source-line-no">571</span><span id="line-571"> boolean addSkipHint = false;</span> |
| <span class="source-line-no">572</span><span id="line-572"> String inputScheme = inputFs.getScheme();</span> |
| <span class="source-line-no">573</span><span id="line-573"> String outputScheme = outputFs.getScheme();</span> |
| <span class="source-line-no">574</span><span id="line-574"> if (!inputScheme.equals(outputScheme)) {</span> |
| <span class="source-line-no">575</span><span id="line-575"> errMessage.append(" Input and output filesystems are of different types.\n")</span> |
| <span class="source-line-no">576</span><span id="line-576"> .append("Their checksum algorithms may be incompatible.");</span> |
| <span class="source-line-no">577</span><span id="line-577"> addSkipHint = true;</span> |
| <span class="source-line-no">578</span><span id="line-578"> } else if (inputStat.getBlockSize() != outputStat.getBlockSize()) {</span> |
| <span class="source-line-no">579</span><span id="line-579"> errMessage.append(" Input and output differ in block-size.");</span> |
| <span class="source-line-no">580</span><span id="line-580"> addSkipHint = true;</span> |
| <span class="source-line-no">581</span><span id="line-581"> } else if (</span> |
| <span class="source-line-no">582</span><span id="line-582"> inChecksum != null && outChecksum != null</span> |
| <span class="source-line-no">583</span><span id="line-583"> && !inChecksum.getAlgorithmName().equals(outChecksum.getAlgorithmName())</span> |
| <span class="source-line-no">584</span><span id="line-584"> ) {</span> |
| <span class="source-line-no">585</span><span id="line-585"> errMessage.append(" Input and output checksum algorithms are of different types.");</span> |
| <span class="source-line-no">586</span><span id="line-586"> addSkipHint = true;</span> |
| <span class="source-line-no">587</span><span id="line-587"> }</span> |
| <span class="source-line-no">588</span><span id="line-588"> if (addSkipHint) {</span> |
| <span class="source-line-no">589</span><span id="line-589"> errMessage</span> |
| <span class="source-line-no">590</span><span id="line-590"> .append(" You can choose file-level checksum validation via "</span> |
| <span class="source-line-no">591</span><span id="line-591"> + "-Ddfs.checksum.combine.mode=COMPOSITE_CRC when block-sizes"</span> |
| <span class="source-line-no">592</span><span id="line-592"> + " or filesystems are different.")</span> |
| <span class="source-line-no">593</span><span id="line-593"> .append(" Or you can skip checksum-checks altogether with --no-checksum-verify.\n")</span> |
| <span class="source-line-no">594</span><span id="line-594"> .append(" (NOTE: By skipping checksums, one runs the risk of "</span> |
| <span class="source-line-no">595</span><span id="line-595"> + "masking data-corruption during file-transfer.)\n");</span> |
| <span class="source-line-no">596</span><span id="line-596"> }</span> |
| <span class="source-line-no">597</span><span id="line-597"> throw new IOException(errMessage.toString());</span> |
| <span class="source-line-no">598</span><span id="line-598"> }</span> |
| <span class="source-line-no">599</span><span id="line-599"> }</span> |
| <span class="source-line-no">600</span><span id="line-600"> }</span> |
| <span class="source-line-no">601</span><span id="line-601"></span> |
| <span class="source-line-no">602</span><span id="line-602"> /**</span> |
| <span class="source-line-no">603</span><span id="line-603"> * Utility to compare checksums</span> |
| <span class="source-line-no">604</span><span id="line-604"> */</span> |
| <span class="source-line-no">605</span><span id="line-605"> private ChecksumComparison verifyChecksum(final FileChecksum inChecksum,</span> |
| <span class="source-line-no">606</span><span id="line-606"> final FileChecksum outChecksum) {</span> |
| <span class="source-line-no">607</span><span id="line-607"> // If the input or output checksum is null, or the algorithms of input and output are not</span> |
| <span class="source-line-no">608</span><span id="line-608"> // equal, that means there is no comparison</span> |
| <span class="source-line-no">609</span><span id="line-609"> // and return not compatible. else if matched, return compatible with the matched result.</span> |
| <span class="source-line-no">610</span><span id="line-610"> if (</span> |
| <span class="source-line-no">611</span><span id="line-611"> inChecksum == null || outChecksum == null</span> |
| <span class="source-line-no">612</span><span id="line-612"> || !inChecksum.getAlgorithmName().equals(outChecksum.getAlgorithmName())</span> |
| <span class="source-line-no">613</span><span id="line-613"> ) {</span> |
| <span class="source-line-no">614</span><span id="line-614"> return ChecksumComparison.INCOMPATIBLE;</span> |
| <span class="source-line-no">615</span><span id="line-615"> } else if (inChecksum.equals(outChecksum)) {</span> |
| <span class="source-line-no">616</span><span id="line-616"> return ChecksumComparison.TRUE;</span> |
| <span class="source-line-no">617</span><span id="line-617"> }</span> |
| <span class="source-line-no">618</span><span id="line-618"> return ChecksumComparison.FALSE;</span> |
| <span class="source-line-no">619</span><span id="line-619"> }</span> |
| <span class="source-line-no">620</span><span id="line-620"></span> |
| <span class="source-line-no">621</span><span id="line-621"> /**</span> |
| <span class="source-line-no">622</span><span id="line-622"> * Check if the two files are equal by looking at the file length, and at the checksum (if user</span> |
| <span class="source-line-no">623</span><span id="line-623"> * has specified the verifyChecksum flag).</span> |
| <span class="source-line-no">624</span><span id="line-624"> */</span> |
| <span class="source-line-no">625</span><span id="line-625"> private boolean sameFile(final FileStatus inputStat, final FileStatus outputStat) {</span> |
| <span class="source-line-no">626</span><span id="line-626"> // Not matching length</span> |
| <span class="source-line-no">627</span><span id="line-627"> if (inputStat.getLen() != outputStat.getLen()) return false;</span> |
| <span class="source-line-no">628</span><span id="line-628"></span> |
| <span class="source-line-no">629</span><span id="line-629"> // Mark files as equals, since user asked for no checksum verification</span> |
| <span class="source-line-no">630</span><span id="line-630"> if (!verifyChecksum) return true;</span> |
| <span class="source-line-no">631</span><span id="line-631"></span> |
| <span class="source-line-no">632</span><span id="line-632"> // If checksums are not available, files are not the same.</span> |
| <span class="source-line-no">633</span><span id="line-633"> FileChecksum inChecksum = getFileChecksum(inputFs, inputStat.getPath());</span> |
| <span class="source-line-no">634</span><span id="line-634"> if (inChecksum == null) return false;</span> |
| <span class="source-line-no">635</span><span id="line-635"></span> |
| <span class="source-line-no">636</span><span id="line-636"> FileChecksum outChecksum = getFileChecksum(outputFs, outputStat.getPath());</span> |
| <span class="source-line-no">637</span><span id="line-637"> if (outChecksum == null) return false;</span> |
| <span class="source-line-no">638</span><span id="line-638"></span> |
| <span class="source-line-no">639</span><span id="line-639"> return inChecksum.equals(outChecksum);</span> |
| <span class="source-line-no">640</span><span id="line-640"> }</span> |
| <span class="source-line-no">641</span><span id="line-641"> }</span> |
| <span class="source-line-no">642</span><span id="line-642"></span> |
| <span class="source-line-no">643</span><span id="line-643"> // ==========================================================================</span> |
| <span class="source-line-no">644</span><span id="line-644"> // Input Format</span> |
| <span class="source-line-no">645</span><span id="line-645"> // ==========================================================================</span> |
| <span class="source-line-no">646</span><span id="line-646"></span> |
| <span class="source-line-no">647</span><span id="line-647"> /**</span> |
| <span class="source-line-no">648</span><span id="line-648"> * Extract the list of files (HFiles/WALs) to copy using Map-Reduce.</span> |
| <span class="source-line-no">649</span><span id="line-649"> * @return list of files referenced by the snapshot (pair of path and size)</span> |
| <span class="source-line-no">650</span><span id="line-650"> */</span> |
| <span class="source-line-no">651</span><span id="line-651"> private static List<Pair<SnapshotFileInfo, Long>> getSnapshotFiles(final Configuration conf,</span> |
| <span class="source-line-no">652</span><span id="line-652"> final FileSystem fs, final Path snapshotDir) throws IOException {</span> |
| <span class="source-line-no">653</span><span id="line-653"> SnapshotDescription snapshotDesc = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);</span> |
| <span class="source-line-no">654</span><span id="line-654"></span> |
| <span class="source-line-no">655</span><span id="line-655"> final List<Pair<SnapshotFileInfo, Long>> files = new ArrayList<>();</span> |
| <span class="source-line-no">656</span><span id="line-656"> final TableName table = TableName.valueOf(snapshotDesc.getTable());</span> |
| <span class="source-line-no">657</span><span id="line-657"></span> |
| <span class="source-line-no">658</span><span id="line-658"> // Get snapshot files</span> |
| <span class="source-line-no">659</span><span id="line-659"> LOG.info("Loading Snapshot '" + snapshotDesc.getName() + "' hfile list");</span> |
| <span class="source-line-no">660</span><span id="line-660"> SnapshotReferenceUtil.visitReferencedFiles(conf, fs, snapshotDir, snapshotDesc,</span> |
| <span class="source-line-no">661</span><span id="line-661"> new SnapshotReferenceUtil.SnapshotVisitor() {</span> |
| <span class="source-line-no">662</span><span id="line-662"> @Override</span> |
| <span class="source-line-no">663</span><span id="line-663"> public void storeFile(final RegionInfo regionInfo, final String family,</span> |
| <span class="source-line-no">664</span><span id="line-664"> final SnapshotRegionManifest.StoreFile storeFile) throws IOException {</span> |
| <span class="source-line-no">665</span><span id="line-665"> Pair<SnapshotFileInfo, Long> snapshotFileAndSize = null;</span> |
| <span class="source-line-no">666</span><span id="line-666"> if (!storeFile.hasReference()) {</span> |
| <span class="source-line-no">667</span><span id="line-667"> String region = regionInfo.getEncodedName();</span> |
| <span class="source-line-no">668</span><span id="line-668"> String hfile = storeFile.getName();</span> |
| <span class="source-line-no">669</span><span id="line-669"> snapshotFileAndSize = getSnapshotFileAndSize(fs, conf, table, region, family, hfile,</span> |
| <span class="source-line-no">670</span><span id="line-670"> storeFile.hasFileSize() ? storeFile.getFileSize() : -1);</span> |
| <span class="source-line-no">671</span><span id="line-671"> } else {</span> |
| <span class="source-line-no">672</span><span id="line-672"> Pair<String, String> referredToRegionAndFile =</span> |
| <span class="source-line-no">673</span><span id="line-673"> StoreFileInfo.getReferredToRegionAndFile(storeFile.getName());</span> |
| <span class="source-line-no">674</span><span id="line-674"> String referencedRegion = referredToRegionAndFile.getFirst();</span> |
| <span class="source-line-no">675</span><span id="line-675"> String referencedHFile = referredToRegionAndFile.getSecond();</span> |
| <span class="source-line-no">676</span><span id="line-676"> snapshotFileAndSize = getSnapshotFileAndSize(fs, conf, table, referencedRegion, family,</span> |
| <span class="source-line-no">677</span><span id="line-677"> referencedHFile, storeFile.hasFileSize() ? storeFile.getFileSize() : -1);</span> |
| <span class="source-line-no">678</span><span id="line-678"> }</span> |
| <span class="source-line-no">679</span><span id="line-679"> files.add(snapshotFileAndSize);</span> |
| <span class="source-line-no">680</span><span id="line-680"> }</span> |
| <span class="source-line-no">681</span><span id="line-681"> });</span> |
| <span class="source-line-no">682</span><span id="line-682"></span> |
| <span class="source-line-no">683</span><span id="line-683"> return files;</span> |
| <span class="source-line-no">684</span><span id="line-684"> }</span> |
| <span class="source-line-no">685</span><span id="line-685"></span> |
| <span class="source-line-no">686</span><span id="line-686"> private static Pair<SnapshotFileInfo, Long> getSnapshotFileAndSize(FileSystem fs,</span> |
| <span class="source-line-no">687</span><span id="line-687"> Configuration conf, TableName table, String region, String family, String hfile, long size)</span> |
| <span class="source-line-no">688</span><span id="line-688"> throws IOException {</span> |
| <span class="source-line-no">689</span><span id="line-689"> Path path = HFileLink.createPath(table, region, family, hfile);</span> |
| <span class="source-line-no">690</span><span id="line-690"> SnapshotFileInfo fileInfo = SnapshotFileInfo.newBuilder().setType(SnapshotFileInfo.Type.HFILE)</span> |
| <span class="source-line-no">691</span><span id="line-691"> .setHfile(path.toString()).build();</span> |
| <span class="source-line-no">692</span><span id="line-692"> if (size == -1) {</span> |
| <span class="source-line-no">693</span><span id="line-693"> size = HFileLink.buildFromHFileLinkPattern(conf, path).getFileStatus(fs).getLen();</span> |
| <span class="source-line-no">694</span><span id="line-694"> }</span> |
| <span class="source-line-no">695</span><span id="line-695"> return new Pair<>(fileInfo, size);</span> |
| <span class="source-line-no">696</span><span id="line-696"> }</span> |
| <span class="source-line-no">697</span><span id="line-697"></span> |
| <span class="source-line-no">698</span><span id="line-698"> /**</span> |
| <span class="source-line-no">699</span><span id="line-699"> * Given a list of file paths and sizes, create around ngroups in as balanced a way as possible.</span> |
| <span class="source-line-no">700</span><span id="line-700"> * The groups created will have similar amounts of bytes.</span> |
| <span class="source-line-no">701</span><span id="line-701"> * <p></span> |
| <span class="source-line-no">702</span><span id="line-702"> * The algorithm used is pretty straightforward; the file list is sorted by size, and then each</span> |
| <span class="source-line-no">703</span><span id="line-703"> * group fetch the bigger file available, iterating through groups alternating the direction.</span> |
| <span class="source-line-no">704</span><span id="line-704"> */</span> |
| <span class="source-line-no">705</span><span id="line-705"> static List<List<Pair<SnapshotFileInfo, Long>>></span> |
| <span class="source-line-no">706</span><span id="line-706"> getBalancedSplits(final List<Pair<SnapshotFileInfo, Long>> files, final int ngroups) {</span> |
| <span class="source-line-no">707</span><span id="line-707"> // Sort files by size, from small to big</span> |
| <span class="source-line-no">708</span><span id="line-708"> Collections.sort(files, new Comparator<Pair<SnapshotFileInfo, Long>>() {</span> |
| <span class="source-line-no">709</span><span id="line-709"> public int compare(Pair<SnapshotFileInfo, Long> a, Pair<SnapshotFileInfo, Long> b) {</span> |
| <span class="source-line-no">710</span><span id="line-710"> long r = a.getSecond() - b.getSecond();</span> |
| <span class="source-line-no">711</span><span id="line-711"> return (r < 0) ? -1 : ((r > 0) ? 1 : 0);</span> |
| <span class="source-line-no">712</span><span id="line-712"> }</span> |
| <span class="source-line-no">713</span><span id="line-713"> });</span> |
| <span class="source-line-no">714</span><span id="line-714"></span> |
| <span class="source-line-no">715</span><span id="line-715"> // create balanced groups</span> |
| <span class="source-line-no">716</span><span id="line-716"> List<List<Pair<SnapshotFileInfo, Long>>> fileGroups = new LinkedList<>();</span> |
| <span class="source-line-no">717</span><span id="line-717"> long[] sizeGroups = new long[ngroups];</span> |
| <span class="source-line-no">718</span><span id="line-718"> int hi = files.size() - 1;</span> |
| <span class="source-line-no">719</span><span id="line-719"> int lo = 0;</span> |
| <span class="source-line-no">720</span><span id="line-720"></span> |
| <span class="source-line-no">721</span><span id="line-721"> List<Pair<SnapshotFileInfo, Long>> group;</span> |
| <span class="source-line-no">722</span><span id="line-722"> int dir = 1;</span> |
| <span class="source-line-no">723</span><span id="line-723"> int g = 0;</span> |
| <span class="source-line-no">724</span><span id="line-724"></span> |
| <span class="source-line-no">725</span><span id="line-725"> while (hi >= lo) {</span> |
| <span class="source-line-no">726</span><span id="line-726"> if (g == fileGroups.size()) {</span> |
| <span class="source-line-no">727</span><span id="line-727"> group = new LinkedList<>();</span> |
| <span class="source-line-no">728</span><span id="line-728"> fileGroups.add(group);</span> |
| <span class="source-line-no">729</span><span id="line-729"> } else {</span> |
| <span class="source-line-no">730</span><span id="line-730"> group = fileGroups.get(g);</span> |
| <span class="source-line-no">731</span><span id="line-731"> }</span> |
| <span class="source-line-no">732</span><span id="line-732"></span> |
| <span class="source-line-no">733</span><span id="line-733"> Pair<SnapshotFileInfo, Long> fileInfo = files.get(hi--);</span> |
| <span class="source-line-no">734</span><span id="line-734"></span> |
| <span class="source-line-no">735</span><span id="line-735"> // add the hi one</span> |
| <span class="source-line-no">736</span><span id="line-736"> sizeGroups[g] += fileInfo.getSecond();</span> |
| <span class="source-line-no">737</span><span id="line-737"> group.add(fileInfo);</span> |
| <span class="source-line-no">738</span><span id="line-738"></span> |
| <span class="source-line-no">739</span><span id="line-739"> // change direction when at the end or the beginning</span> |
| <span class="source-line-no">740</span><span id="line-740"> g += dir;</span> |
| <span class="source-line-no">741</span><span id="line-741"> if (g == ngroups) {</span> |
| <span class="source-line-no">742</span><span id="line-742"> dir = -1;</span> |
| <span class="source-line-no">743</span><span id="line-743"> g = ngroups - 1;</span> |
| <span class="source-line-no">744</span><span id="line-744"> } else if (g < 0) {</span> |
| <span class="source-line-no">745</span><span id="line-745"> dir = 1;</span> |
| <span class="source-line-no">746</span><span id="line-746"> g = 0;</span> |
| <span class="source-line-no">747</span><span id="line-747"> }</span> |
| <span class="source-line-no">748</span><span id="line-748"> }</span> |
| <span class="source-line-no">749</span><span id="line-749"></span> |
| <span class="source-line-no">750</span><span id="line-750"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">751</span><span id="line-751"> for (int i = 0; i < sizeGroups.length; ++i) {</span> |
| <span class="source-line-no">752</span><span id="line-752"> LOG.debug("export split=" + i + " size=" + StringUtils.humanReadableInt(sizeGroups[i]));</span> |
| <span class="source-line-no">753</span><span id="line-753"> }</span> |
| <span class="source-line-no">754</span><span id="line-754"> }</span> |
| <span class="source-line-no">755</span><span id="line-755"></span> |
| <span class="source-line-no">756</span><span id="line-756"> return fileGroups;</span> |
| <span class="source-line-no">757</span><span id="line-757"> }</span> |
| <span class="source-line-no">758</span><span id="line-758"></span> |
| <span class="source-line-no">759</span><span id="line-759"> private static class ExportSnapshotInputFormat extends InputFormat<BytesWritable, NullWritable> {</span> |
| <span class="source-line-no">760</span><span id="line-760"> @Override</span> |
| <span class="source-line-no">761</span><span id="line-761"> public RecordReader<BytesWritable, NullWritable> createRecordReader(InputSplit split,</span> |
| <span class="source-line-no">762</span><span id="line-762"> TaskAttemptContext tac) throws IOException, InterruptedException {</span> |
| <span class="source-line-no">763</span><span id="line-763"> return new ExportSnapshotRecordReader(((ExportSnapshotInputSplit) split).getSplitKeys());</span> |
| <span class="source-line-no">764</span><span id="line-764"> }</span> |
| <span class="source-line-no">765</span><span id="line-765"></span> |
| <span class="source-line-no">766</span><span id="line-766"> @Override</span> |
| <span class="source-line-no">767</span><span id="line-767"> public List<InputSplit> getSplits(JobContext context) throws IOException, InterruptedException {</span> |
| <span class="source-line-no">768</span><span id="line-768"> Configuration conf = context.getConfiguration();</span> |
| <span class="source-line-no">769</span><span id="line-769"> Path snapshotDir = new Path(conf.get(CONF_SNAPSHOT_DIR));</span> |
| <span class="source-line-no">770</span><span id="line-770"> FileSystem fs = FileSystem.get(snapshotDir.toUri(), conf);</span> |
| <span class="source-line-no">771</span><span id="line-771"></span> |
| <span class="source-line-no">772</span><span id="line-772"> List<Pair<SnapshotFileInfo, Long>> snapshotFiles = getSnapshotFiles(conf, fs, snapshotDir);</span> |
| <span class="source-line-no">773</span><span id="line-773"> int mappers = conf.getInt(CONF_NUM_SPLITS, 0);</span> |
| <span class="source-line-no">774</span><span id="line-774"> if (mappers == 0 && snapshotFiles.size() > 0) {</span> |
| <span class="source-line-no">775</span><span id="line-775"> mappers = 1 + (snapshotFiles.size() / conf.getInt(CONF_MAP_GROUP, 10));</span> |
| <span class="source-line-no">776</span><span id="line-776"> mappers = Math.min(mappers, snapshotFiles.size());</span> |
| <span class="source-line-no">777</span><span id="line-777"> conf.setInt(CONF_NUM_SPLITS, mappers);</span> |
| <span class="source-line-no">778</span><span id="line-778"> conf.setInt(MR_NUM_MAPS, mappers);</span> |
| <span class="source-line-no">779</span><span id="line-779"> }</span> |
| <span class="source-line-no">780</span><span id="line-780"></span> |
| <span class="source-line-no">781</span><span id="line-781"> List<List<Pair<SnapshotFileInfo, Long>>> groups = getBalancedSplits(snapshotFiles, mappers);</span> |
| <span class="source-line-no">782</span><span id="line-782"> List<InputSplit> splits = new ArrayList(groups.size());</span> |
| <span class="source-line-no">783</span><span id="line-783"> for (List<Pair<SnapshotFileInfo, Long>> files : groups) {</span> |
| <span class="source-line-no">784</span><span id="line-784"> splits.add(new ExportSnapshotInputSplit(files));</span> |
| <span class="source-line-no">785</span><span id="line-785"> }</span> |
| <span class="source-line-no">786</span><span id="line-786"> return splits;</span> |
| <span class="source-line-no">787</span><span id="line-787"> }</span> |
| <span class="source-line-no">788</span><span id="line-788"></span> |
| <span class="source-line-no">789</span><span id="line-789"> private static class ExportSnapshotInputSplit extends InputSplit implements Writable {</span> |
| <span class="source-line-no">790</span><span id="line-790"> private List<Pair<BytesWritable, Long>> files;</span> |
| <span class="source-line-no">791</span><span id="line-791"> private long length;</span> |
| <span class="source-line-no">792</span><span id="line-792"></span> |
| <span class="source-line-no">793</span><span id="line-793"> public ExportSnapshotInputSplit() {</span> |
| <span class="source-line-no">794</span><span id="line-794"> this.files = null;</span> |
| <span class="source-line-no">795</span><span id="line-795"> }</span> |
| <span class="source-line-no">796</span><span id="line-796"></span> |
| <span class="source-line-no">797</span><span id="line-797"> public ExportSnapshotInputSplit(final List<Pair<SnapshotFileInfo, Long>> snapshotFiles) {</span> |
| <span class="source-line-no">798</span><span id="line-798"> this.files = new ArrayList(snapshotFiles.size());</span> |
| <span class="source-line-no">799</span><span id="line-799"> for (Pair<SnapshotFileInfo, Long> fileInfo : snapshotFiles) {</span> |
| <span class="source-line-no">800</span><span id="line-800"> this.files.add(</span> |
| <span class="source-line-no">801</span><span id="line-801"> new Pair<>(new BytesWritable(fileInfo.getFirst().toByteArray()), fileInfo.getSecond()));</span> |
| <span class="source-line-no">802</span><span id="line-802"> this.length += fileInfo.getSecond();</span> |
| <span class="source-line-no">803</span><span id="line-803"> }</span> |
| <span class="source-line-no">804</span><span id="line-804"> }</span> |
| <span class="source-line-no">805</span><span id="line-805"></span> |
| <span class="source-line-no">806</span><span id="line-806"> private List<Pair<BytesWritable, Long>> getSplitKeys() {</span> |
| <span class="source-line-no">807</span><span id="line-807"> return files;</span> |
| <span class="source-line-no">808</span><span id="line-808"> }</span> |
| <span class="source-line-no">809</span><span id="line-809"></span> |
| <span class="source-line-no">810</span><span id="line-810"> @Override</span> |
| <span class="source-line-no">811</span><span id="line-811"> public long getLength() throws IOException, InterruptedException {</span> |
| <span class="source-line-no">812</span><span id="line-812"> return length;</span> |
| <span class="source-line-no">813</span><span id="line-813"> }</span> |
| <span class="source-line-no">814</span><span id="line-814"></span> |
| <span class="source-line-no">815</span><span id="line-815"> @Override</span> |
| <span class="source-line-no">816</span><span id="line-816"> public String[] getLocations() throws IOException, InterruptedException {</span> |
| <span class="source-line-no">817</span><span id="line-817"> return new String[] {};</span> |
| <span class="source-line-no">818</span><span id="line-818"> }</span> |
| <span class="source-line-no">819</span><span id="line-819"></span> |
| <span class="source-line-no">820</span><span id="line-820"> @Override</span> |
| <span class="source-line-no">821</span><span id="line-821"> public void readFields(DataInput in) throws IOException {</span> |
| <span class="source-line-no">822</span><span id="line-822"> int count = in.readInt();</span> |
| <span class="source-line-no">823</span><span id="line-823"> files = new ArrayList<>(count);</span> |
| <span class="source-line-no">824</span><span id="line-824"> length = 0;</span> |
| <span class="source-line-no">825</span><span id="line-825"> for (int i = 0; i < count; ++i) {</span> |
| <span class="source-line-no">826</span><span id="line-826"> BytesWritable fileInfo = new BytesWritable();</span> |
| <span class="source-line-no">827</span><span id="line-827"> fileInfo.readFields(in);</span> |
| <span class="source-line-no">828</span><span id="line-828"> long size = in.readLong();</span> |
| <span class="source-line-no">829</span><span id="line-829"> files.add(new Pair<>(fileInfo, size));</span> |
| <span class="source-line-no">830</span><span id="line-830"> length += size;</span> |
| <span class="source-line-no">831</span><span id="line-831"> }</span> |
| <span class="source-line-no">832</span><span id="line-832"> }</span> |
| <span class="source-line-no">833</span><span id="line-833"></span> |
| <span class="source-line-no">834</span><span id="line-834"> @Override</span> |
| <span class="source-line-no">835</span><span id="line-835"> public void write(DataOutput out) throws IOException {</span> |
| <span class="source-line-no">836</span><span id="line-836"> out.writeInt(files.size());</span> |
| <span class="source-line-no">837</span><span id="line-837"> for (final Pair<BytesWritable, Long> fileInfo : files) {</span> |
| <span class="source-line-no">838</span><span id="line-838"> fileInfo.getFirst().write(out);</span> |
| <span class="source-line-no">839</span><span id="line-839"> out.writeLong(fileInfo.getSecond());</span> |
| <span class="source-line-no">840</span><span id="line-840"> }</span> |
| <span class="source-line-no">841</span><span id="line-841"> }</span> |
| <span class="source-line-no">842</span><span id="line-842"> }</span> |
| <span class="source-line-no">843</span><span id="line-843"></span> |
| <span class="source-line-no">844</span><span id="line-844"> private static class ExportSnapshotRecordReader</span> |
| <span class="source-line-no">845</span><span id="line-845"> extends RecordReader<BytesWritable, NullWritable> {</span> |
| <span class="source-line-no">846</span><span id="line-846"> private final List<Pair<BytesWritable, Long>> files;</span> |
| <span class="source-line-no">847</span><span id="line-847"> private long totalSize = 0;</span> |
| <span class="source-line-no">848</span><span id="line-848"> private long procSize = 0;</span> |
| <span class="source-line-no">849</span><span id="line-849"> private int index = -1;</span> |
| <span class="source-line-no">850</span><span id="line-850"></span> |
| <span class="source-line-no">851</span><span id="line-851"> ExportSnapshotRecordReader(final List<Pair<BytesWritable, Long>> files) {</span> |
| <span class="source-line-no">852</span><span id="line-852"> this.files = files;</span> |
| <span class="source-line-no">853</span><span id="line-853"> for (Pair<BytesWritable, Long> fileInfo : files) {</span> |
| <span class="source-line-no">854</span><span id="line-854"> totalSize += fileInfo.getSecond();</span> |
| <span class="source-line-no">855</span><span id="line-855"> }</span> |
| <span class="source-line-no">856</span><span id="line-856"> }</span> |
| <span class="source-line-no">857</span><span id="line-857"></span> |
| <span class="source-line-no">858</span><span id="line-858"> @Override</span> |
| <span class="source-line-no">859</span><span id="line-859"> public void close() {</span> |
| <span class="source-line-no">860</span><span id="line-860"> }</span> |
| <span class="source-line-no">861</span><span id="line-861"></span> |
| <span class="source-line-no">862</span><span id="line-862"> @Override</span> |
| <span class="source-line-no">863</span><span id="line-863"> public BytesWritable getCurrentKey() {</span> |
| <span class="source-line-no">864</span><span id="line-864"> return files.get(index).getFirst();</span> |
| <span class="source-line-no">865</span><span id="line-865"> }</span> |
| <span class="source-line-no">866</span><span id="line-866"></span> |
| <span class="source-line-no">867</span><span id="line-867"> @Override</span> |
| <span class="source-line-no">868</span><span id="line-868"> public NullWritable getCurrentValue() {</span> |
| <span class="source-line-no">869</span><span id="line-869"> return NullWritable.get();</span> |
| <span class="source-line-no">870</span><span id="line-870"> }</span> |
| <span class="source-line-no">871</span><span id="line-871"></span> |
| <span class="source-line-no">872</span><span id="line-872"> @Override</span> |
| <span class="source-line-no">873</span><span id="line-873"> public float getProgress() {</span> |
| <span class="source-line-no">874</span><span id="line-874"> return (float) procSize / totalSize;</span> |
| <span class="source-line-no">875</span><span id="line-875"> }</span> |
| <span class="source-line-no">876</span><span id="line-876"></span> |
| <span class="source-line-no">877</span><span id="line-877"> @Override</span> |
| <span class="source-line-no">878</span><span id="line-878"> public void initialize(InputSplit split, TaskAttemptContext tac) {</span> |
| <span class="source-line-no">879</span><span id="line-879"> }</span> |
| <span class="source-line-no">880</span><span id="line-880"></span> |
| <span class="source-line-no">881</span><span id="line-881"> @Override</span> |
| <span class="source-line-no">882</span><span id="line-882"> public boolean nextKeyValue() {</span> |
| <span class="source-line-no">883</span><span id="line-883"> if (index >= 0) {</span> |
| <span class="source-line-no">884</span><span id="line-884"> procSize += files.get(index).getSecond();</span> |
| <span class="source-line-no">885</span><span id="line-885"> }</span> |
| <span class="source-line-no">886</span><span id="line-886"> return (++index < files.size());</span> |
| <span class="source-line-no">887</span><span id="line-887"> }</span> |
| <span class="source-line-no">888</span><span id="line-888"> }</span> |
| <span class="source-line-no">889</span><span id="line-889"> }</span> |
| <span class="source-line-no">890</span><span id="line-890"></span> |
| <span class="source-line-no">891</span><span id="line-891"> // ==========================================================================</span> |
| <span class="source-line-no">892</span><span id="line-892"> // Tool</span> |
| <span class="source-line-no">893</span><span id="line-893"> // ==========================================================================</span> |
| <span class="source-line-no">894</span><span id="line-894"></span> |
| <span class="source-line-no">895</span><span id="line-895"> /**</span> |
| <span class="source-line-no">896</span><span id="line-896"> * Run Map-Reduce Job to perform the files copy.</span> |
| <span class="source-line-no">897</span><span id="line-897"> */</span> |
| <span class="source-line-no">898</span><span id="line-898"> private void runCopyJob(final Path inputRoot, final Path outputRoot, final String snapshotName,</span> |
| <span class="source-line-no">899</span><span id="line-899"> final Path snapshotDir, final boolean verifyChecksum, final String filesUser,</span> |
| <span class="source-line-no">900</span><span id="line-900"> final String filesGroup, final int filesMode, final int mappers, final int bandwidthMB)</span> |
| <span class="source-line-no">901</span><span id="line-901"> throws IOException, InterruptedException, ClassNotFoundException {</span> |
| <span class="source-line-no">902</span><span id="line-902"> Configuration conf = getConf();</span> |
| <span class="source-line-no">903</span><span id="line-903"> if (filesGroup != null) conf.set(CONF_FILES_GROUP, filesGroup);</span> |
| <span class="source-line-no">904</span><span id="line-904"> if (filesUser != null) conf.set(CONF_FILES_USER, filesUser);</span> |
| <span class="source-line-no">905</span><span id="line-905"> if (mappers > 0) {</span> |
| <span class="source-line-no">906</span><span id="line-906"> conf.setInt(CONF_NUM_SPLITS, mappers);</span> |
| <span class="source-line-no">907</span><span id="line-907"> conf.setInt(MR_NUM_MAPS, mappers);</span> |
| <span class="source-line-no">908</span><span id="line-908"> }</span> |
| <span class="source-line-no">909</span><span id="line-909"> conf.setInt(CONF_FILES_MODE, filesMode);</span> |
| <span class="source-line-no">910</span><span id="line-910"> conf.setBoolean(CONF_CHECKSUM_VERIFY, verifyChecksum);</span> |
| <span class="source-line-no">911</span><span id="line-911"> conf.set(CONF_OUTPUT_ROOT, outputRoot.toString());</span> |
| <span class="source-line-no">912</span><span id="line-912"> conf.set(CONF_INPUT_ROOT, inputRoot.toString());</span> |
| <span class="source-line-no">913</span><span id="line-913"> conf.setInt(CONF_BANDWIDTH_MB, bandwidthMB);</span> |
| <span class="source-line-no">914</span><span id="line-914"> conf.set(CONF_SNAPSHOT_NAME, snapshotName);</span> |
| <span class="source-line-no">915</span><span id="line-915"> conf.set(CONF_SNAPSHOT_DIR, snapshotDir.toString());</span> |
| <span class="source-line-no">916</span><span id="line-916"></span> |
| <span class="source-line-no">917</span><span id="line-917"> String jobname = conf.get(CONF_MR_JOB_NAME, "ExportSnapshot-" + snapshotName);</span> |
| <span class="source-line-no">918</span><span id="line-918"> Job job = new Job(conf);</span> |
| <span class="source-line-no">919</span><span id="line-919"> job.setJobName(jobname);</span> |
| <span class="source-line-no">920</span><span id="line-920"> job.setJarByClass(ExportSnapshot.class);</span> |
| <span class="source-line-no">921</span><span id="line-921"> TableMapReduceUtil.addDependencyJars(job);</span> |
| <span class="source-line-no">922</span><span id="line-922"> job.setMapperClass(ExportMapper.class);</span> |
| <span class="source-line-no">923</span><span id="line-923"> job.setInputFormatClass(ExportSnapshotInputFormat.class);</span> |
| <span class="source-line-no">924</span><span id="line-924"> job.setOutputFormatClass(NullOutputFormat.class);</span> |
| <span class="source-line-no">925</span><span id="line-925"> job.setMapSpeculativeExecution(false);</span> |
| <span class="source-line-no">926</span><span id="line-926"> job.setNumReduceTasks(0);</span> |
| <span class="source-line-no">927</span><span id="line-927"></span> |
| <span class="source-line-no">928</span><span id="line-928"> // Acquire the delegation Tokens</span> |
| <span class="source-line-no">929</span><span id="line-929"> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);</span> |
| <span class="source-line-no">930</span><span id="line-930"> TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[] { inputRoot }, srcConf);</span> |
| <span class="source-line-no">931</span><span id="line-931"> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);</span> |
| <span class="source-line-no">932</span><span id="line-932"> TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[] { outputRoot }, destConf);</span> |
| <span class="source-line-no">933</span><span id="line-933"></span> |
| <span class="source-line-no">934</span><span id="line-934"> // Run the MR Job</span> |
| <span class="source-line-no">935</span><span id="line-935"> if (!job.waitForCompletion(true)) {</span> |
| <span class="source-line-no">936</span><span id="line-936"> throw new ExportSnapshotException(job.getStatus().getFailureInfo());</span> |
| <span class="source-line-no">937</span><span id="line-937"> }</span> |
| <span class="source-line-no">938</span><span id="line-938"> }</span> |
| <span class="source-line-no">939</span><span id="line-939"></span> |
| <span class="source-line-no">940</span><span id="line-940"> private void verifySnapshot(final SnapshotDescription snapshotDesc, final Configuration baseConf,</span> |
| <span class="source-line-no">941</span><span id="line-941"> final FileSystem fs, final Path rootDir, final Path snapshotDir) throws IOException {</span> |
| <span class="source-line-no">942</span><span id="line-942"> // Update the conf with the current root dir, since may be a different cluster</span> |
| <span class="source-line-no">943</span><span id="line-943"> Configuration conf = new Configuration(baseConf);</span> |
| <span class="source-line-no">944</span><span id="line-944"> CommonFSUtils.setRootDir(conf, rootDir);</span> |
| <span class="source-line-no">945</span><span id="line-945"> CommonFSUtils.setFsDefault(conf, CommonFSUtils.getRootDir(conf));</span> |
| <span class="source-line-no">946</span><span id="line-946"> boolean isExpired = SnapshotDescriptionUtils.isExpiredSnapshot(snapshotDesc.getTtl(),</span> |
| <span class="source-line-no">947</span><span id="line-947"> snapshotDesc.getCreationTime(), EnvironmentEdgeManager.currentTime());</span> |
| <span class="source-line-no">948</span><span id="line-948"> if (isExpired) {</span> |
| <span class="source-line-no">949</span><span id="line-949"> throw new SnapshotTTLExpiredException(ProtobufUtil.createSnapshotDesc(snapshotDesc));</span> |
| <span class="source-line-no">950</span><span id="line-950"> }</span> |
| <span class="source-line-no">951</span><span id="line-951"> SnapshotReferenceUtil.verifySnapshot(conf, fs, snapshotDir, snapshotDesc);</span> |
| <span class="source-line-no">952</span><span id="line-952"> }</span> |
| <span class="source-line-no">953</span><span id="line-953"></span> |
| <span class="source-line-no">954</span><span id="line-954"> private void setConfigParallel(FileSystem outputFs, List<Path> traversedPath,</span> |
| <span class="source-line-no">955</span><span id="line-955"> BiConsumer<FileSystem, Path> task, Configuration conf) throws IOException {</span> |
| <span class="source-line-no">956</span><span id="line-956"> ExecutorService pool = Executors</span> |
| <span class="source-line-no">957</span><span id="line-957"> .newFixedThreadPool(conf.getInt(CONF_COPY_MANIFEST_THREADS, DEFAULT_COPY_MANIFEST_THREADS));</span> |
| <span class="source-line-no">958</span><span id="line-958"> List<Future<Void>> futures = new ArrayList<>();</span> |
| <span class="source-line-no">959</span><span id="line-959"> for (Path dstPath : traversedPath) {</span> |
| <span class="source-line-no">960</span><span id="line-960"> Future<Void> future = (Future<Void>) pool.submit(() -> task.accept(outputFs, dstPath));</span> |
| <span class="source-line-no">961</span><span id="line-961"> futures.add(future);</span> |
| <span class="source-line-no">962</span><span id="line-962"> }</span> |
| <span class="source-line-no">963</span><span id="line-963"> try {</span> |
| <span class="source-line-no">964</span><span id="line-964"> for (Future<Void> future : futures) {</span> |
| <span class="source-line-no">965</span><span id="line-965"> future.get();</span> |
| <span class="source-line-no">966</span><span id="line-966"> }</span> |
| <span class="source-line-no">967</span><span id="line-967"> } catch (InterruptedException | ExecutionException e) {</span> |
| <span class="source-line-no">968</span><span id="line-968"> throw new IOException(e);</span> |
| <span class="source-line-no">969</span><span id="line-969"> } finally {</span> |
| <span class="source-line-no">970</span><span id="line-970"> pool.shutdownNow();</span> |
| <span class="source-line-no">971</span><span id="line-971"> }</span> |
| <span class="source-line-no">972</span><span id="line-972"> }</span> |
| <span class="source-line-no">973</span><span id="line-973"></span> |
| <span class="source-line-no">974</span><span id="line-974"> private void setOwnerParallel(FileSystem outputFs, String filesUser, String filesGroup,</span> |
| <span class="source-line-no">975</span><span id="line-975"> Configuration conf, List<Path> traversedPath) throws IOException {</span> |
| <span class="source-line-no">976</span><span id="line-976"> setConfigParallel(outputFs, traversedPath, (fs, path) -> {</span> |
| <span class="source-line-no">977</span><span id="line-977"> try {</span> |
| <span class="source-line-no">978</span><span id="line-978"> fs.setOwner(path, filesUser, filesGroup);</span> |
| <span class="source-line-no">979</span><span id="line-979"> } catch (IOException e) {</span> |
| <span class="source-line-no">980</span><span id="line-980"> throw new RuntimeException(</span> |
| <span class="source-line-no">981</span><span id="line-981"> "set owner for file " + path + " to " + filesUser + ":" + filesGroup + " failed", e);</span> |
| <span class="source-line-no">982</span><span id="line-982"> }</span> |
| <span class="source-line-no">983</span><span id="line-983"> }, conf);</span> |
| <span class="source-line-no">984</span><span id="line-984"> }</span> |
| <span class="source-line-no">985</span><span id="line-985"></span> |
| <span class="source-line-no">986</span><span id="line-986"> private void setPermissionParallel(final FileSystem outputFs, final short filesMode,</span> |
| <span class="source-line-no">987</span><span id="line-987"> final List<Path> traversedPath, final Configuration conf) throws IOException {</span> |
| <span class="source-line-no">988</span><span id="line-988"> if (filesMode <= 0) {</span> |
| <span class="source-line-no">989</span><span id="line-989"> return;</span> |
| <span class="source-line-no">990</span><span id="line-990"> }</span> |
| <span class="source-line-no">991</span><span id="line-991"> FsPermission perm = new FsPermission(filesMode);</span> |
| <span class="source-line-no">992</span><span id="line-992"> setConfigParallel(outputFs, traversedPath, (fs, path) -> {</span> |
| <span class="source-line-no">993</span><span id="line-993"> try {</span> |
| <span class="source-line-no">994</span><span id="line-994"> fs.setPermission(path, perm);</span> |
| <span class="source-line-no">995</span><span id="line-995"> } catch (IOException e) {</span> |
| <span class="source-line-no">996</span><span id="line-996"> throw new RuntimeException(</span> |
| <span class="source-line-no">997</span><span id="line-997"> "set permission for file " + path + " to " + filesMode + " failed", e);</span> |
| <span class="source-line-no">998</span><span id="line-998"> }</span> |
| <span class="source-line-no">999</span><span id="line-999"> }, conf);</span> |
| <span class="source-line-no">1000</span><span id="line-1000"> }</span> |
| <span class="source-line-no">1001</span><span id="line-1001"></span> |
| <span class="source-line-no">1002</span><span id="line-1002"> private boolean verifyTarget = true;</span> |
| <span class="source-line-no">1003</span><span id="line-1003"> private boolean verifySource = true;</span> |
| <span class="source-line-no">1004</span><span id="line-1004"> private boolean verifyChecksum = true;</span> |
| <span class="source-line-no">1005</span><span id="line-1005"> private String snapshotName = null;</span> |
| <span class="source-line-no">1006</span><span id="line-1006"> private String targetName = null;</span> |
| <span class="source-line-no">1007</span><span id="line-1007"> private boolean overwrite = false;</span> |
| <span class="source-line-no">1008</span><span id="line-1008"> private String filesGroup = null;</span> |
| <span class="source-line-no">1009</span><span id="line-1009"> private String filesUser = null;</span> |
| <span class="source-line-no">1010</span><span id="line-1010"> private Path outputRoot = null;</span> |
| <span class="source-line-no">1011</span><span id="line-1011"> private Path inputRoot = null;</span> |
| <span class="source-line-no">1012</span><span id="line-1012"> private int bandwidthMB = Integer.MAX_VALUE;</span> |
| <span class="source-line-no">1013</span><span id="line-1013"> private int filesMode = 0;</span> |
| <span class="source-line-no">1014</span><span id="line-1014"> private int mappers = 0;</span> |
| <span class="source-line-no">1015</span><span id="line-1015"> private boolean resetTtl = false;</span> |
| <span class="source-line-no">1016</span><span id="line-1016"></span> |
| <span class="source-line-no">1017</span><span id="line-1017"> @Override</span> |
| <span class="source-line-no">1018</span><span id="line-1018"> protected void processOptions(CommandLine cmd) {</span> |
| <span class="source-line-no">1019</span><span id="line-1019"> snapshotName = cmd.getOptionValue(Options.SNAPSHOT.getLongOpt(), snapshotName);</span> |
| <span class="source-line-no">1020</span><span id="line-1020"> targetName = cmd.getOptionValue(Options.TARGET_NAME.getLongOpt(), targetName);</span> |
| <span class="source-line-no">1021</span><span id="line-1021"> if (cmd.hasOption(Options.COPY_TO.getLongOpt())) {</span> |
| <span class="source-line-no">1022</span><span id="line-1022"> outputRoot = new Path(cmd.getOptionValue(Options.COPY_TO.getLongOpt()));</span> |
| <span class="source-line-no">1023</span><span id="line-1023"> }</span> |
| <span class="source-line-no">1024</span><span id="line-1024"> if (cmd.hasOption(Options.COPY_FROM.getLongOpt())) {</span> |
| <span class="source-line-no">1025</span><span id="line-1025"> inputRoot = new Path(cmd.getOptionValue(Options.COPY_FROM.getLongOpt()));</span> |
| <span class="source-line-no">1026</span><span id="line-1026"> }</span> |
| <span class="source-line-no">1027</span><span id="line-1027"> mappers = getOptionAsInt(cmd, Options.MAPPERS.getLongOpt(), mappers);</span> |
| <span class="source-line-no">1028</span><span id="line-1028"> filesUser = cmd.getOptionValue(Options.CHUSER.getLongOpt(), filesUser);</span> |
| <span class="source-line-no">1029</span><span id="line-1029"> filesGroup = cmd.getOptionValue(Options.CHGROUP.getLongOpt(), filesGroup);</span> |
| <span class="source-line-no">1030</span><span id="line-1030"> filesMode = getOptionAsInt(cmd, Options.CHMOD.getLongOpt(), filesMode, 8);</span> |
| <span class="source-line-no">1031</span><span id="line-1031"> bandwidthMB = getOptionAsInt(cmd, Options.BANDWIDTH.getLongOpt(), bandwidthMB);</span> |
| <span class="source-line-no">1032</span><span id="line-1032"> overwrite = cmd.hasOption(Options.OVERWRITE.getLongOpt());</span> |
| <span class="source-line-no">1033</span><span id="line-1033"> // And verifyChecksum and verifyTarget with values read from old args in processOldArgs(...).</span> |
| <span class="source-line-no">1034</span><span id="line-1034"> verifyChecksum = !cmd.hasOption(Options.NO_CHECKSUM_VERIFY.getLongOpt());</span> |
| <span class="source-line-no">1035</span><span id="line-1035"> verifyTarget = !cmd.hasOption(Options.NO_TARGET_VERIFY.getLongOpt());</span> |
| <span class="source-line-no">1036</span><span id="line-1036"> verifySource = !cmd.hasOption(Options.NO_SOURCE_VERIFY.getLongOpt());</span> |
| <span class="source-line-no">1037</span><span id="line-1037"> resetTtl = cmd.hasOption(Options.RESET_TTL.getLongOpt());</span> |
| <span class="source-line-no">1038</span><span id="line-1038"> }</span> |
| <span class="source-line-no">1039</span><span id="line-1039"></span> |
| <span class="source-line-no">1040</span><span id="line-1040"> /**</span> |
| <span class="source-line-no">1041</span><span id="line-1041"> * Execute the export snapshot by copying the snapshot metadata, hfiles and wals.</span> |
| <span class="source-line-no">1042</span><span id="line-1042"> * @return 0 on success, and != 0 upon failure.</span> |
| <span class="source-line-no">1043</span><span id="line-1043"> */</span> |
| <span class="source-line-no">1044</span><span id="line-1044"> @Override</span> |
| <span class="source-line-no">1045</span><span id="line-1045"> public int doWork() throws IOException {</span> |
| <span class="source-line-no">1046</span><span id="line-1046"> Configuration conf = getConf();</span> |
| <span class="source-line-no">1047</span><span id="line-1047"></span> |
| <span class="source-line-no">1048</span><span id="line-1048"> // Check user options</span> |
| <span class="source-line-no">1049</span><span id="line-1049"> if (snapshotName == null) {</span> |
| <span class="source-line-no">1050</span><span id="line-1050"> System.err.println("Snapshot name not provided.");</span> |
| <span class="source-line-no">1051</span><span id="line-1051"> LOG.error("Use -h or --help for usage instructions.");</span> |
| <span class="source-line-no">1052</span><span id="line-1052"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1053</span><span id="line-1053"> }</span> |
| <span class="source-line-no">1054</span><span id="line-1054"></span> |
| <span class="source-line-no">1055</span><span id="line-1055"> if (outputRoot == null) {</span> |
| <span class="source-line-no">1056</span><span id="line-1056"> System.err</span> |
| <span class="source-line-no">1057</span><span id="line-1057"> .println("Destination file-system (--" + Options.COPY_TO.getLongOpt() + ") not provided.");</span> |
| <span class="source-line-no">1058</span><span id="line-1058"> LOG.error("Use -h or --help for usage instructions.");</span> |
| <span class="source-line-no">1059</span><span id="line-1059"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1060</span><span id="line-1060"> }</span> |
| <span class="source-line-no">1061</span><span id="line-1061"></span> |
| <span class="source-line-no">1062</span><span id="line-1062"> if (targetName == null) {</span> |
| <span class="source-line-no">1063</span><span id="line-1063"> targetName = snapshotName;</span> |
| <span class="source-line-no">1064</span><span id="line-1064"> }</span> |
| <span class="source-line-no">1065</span><span id="line-1065"> if (inputRoot == null) {</span> |
| <span class="source-line-no">1066</span><span id="line-1066"> inputRoot = CommonFSUtils.getRootDir(conf);</span> |
| <span class="source-line-no">1067</span><span id="line-1067"> } else {</span> |
| <span class="source-line-no">1068</span><span id="line-1068"> CommonFSUtils.setRootDir(conf, inputRoot);</span> |
| <span class="source-line-no">1069</span><span id="line-1069"> }</span> |
| <span class="source-line-no">1070</span><span id="line-1070"></span> |
| <span class="source-line-no">1071</span><span id="line-1071"> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);</span> |
| <span class="source-line-no">1072</span><span id="line-1072"> FileSystem inputFs = FileSystem.get(inputRoot.toUri(), srcConf);</span> |
| <span class="source-line-no">1073</span><span id="line-1073"> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);</span> |
| <span class="source-line-no">1074</span><span id="line-1074"> FileSystem outputFs = FileSystem.get(outputRoot.toUri(), destConf);</span> |
| <span class="source-line-no">1075</span><span id="line-1075"> boolean skipTmp = conf.getBoolean(CONF_SKIP_TMP, false)</span> |
| <span class="source-line-no">1076</span><span id="line-1076"> || conf.get(SnapshotDescriptionUtils.SNAPSHOT_WORKING_DIR) != null;</span> |
| <span class="source-line-no">1077</span><span id="line-1077"> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshotName, inputRoot);</span> |
| <span class="source-line-no">1078</span><span id="line-1078"> Path snapshotTmpDir =</span> |
| <span class="source-line-no">1079</span><span id="line-1079"> SnapshotDescriptionUtils.getWorkingSnapshotDir(targetName, outputRoot, destConf);</span> |
| <span class="source-line-no">1080</span><span id="line-1080"> Path outputSnapshotDir =</span> |
| <span class="source-line-no">1081</span><span id="line-1081"> SnapshotDescriptionUtils.getCompletedSnapshotDir(targetName, outputRoot);</span> |
| <span class="source-line-no">1082</span><span id="line-1082"> Path initialOutputSnapshotDir = skipTmp ? outputSnapshotDir : snapshotTmpDir;</span> |
| <span class="source-line-no">1083</span><span id="line-1083"> LOG.debug("inputFs={}, inputRoot={}", inputFs.getUri().toString(), inputRoot);</span> |
| <span class="source-line-no">1084</span><span id="line-1084"> LOG.debug("outputFs={}, outputRoot={}, skipTmp={}, initialOutputSnapshotDir={}", outputFs,</span> |
| <span class="source-line-no">1085</span><span id="line-1085"> outputRoot.toString(), skipTmp, initialOutputSnapshotDir);</span> |
| <span class="source-line-no">1086</span><span id="line-1086"></span> |
| <span class="source-line-no">1087</span><span id="line-1087"> // throw CorruptedSnapshotException if we can't read the snapshot info.</span> |
| <span class="source-line-no">1088</span><span id="line-1088"> SnapshotDescription sourceSnapshotDesc =</span> |
| <span class="source-line-no">1089</span><span id="line-1089"> SnapshotDescriptionUtils.readSnapshotInfo(inputFs, snapshotDir);</span> |
| <span class="source-line-no">1090</span><span id="line-1090"></span> |
| <span class="source-line-no">1091</span><span id="line-1091"> // Verify snapshot source before copying files</span> |
| <span class="source-line-no">1092</span><span id="line-1092"> if (verifySource) {</span> |
| <span class="source-line-no">1093</span><span id="line-1093"> LOG.info("Verify the source snapshot's expiration status and integrity.");</span> |
| <span class="source-line-no">1094</span><span id="line-1094"> verifySnapshot(sourceSnapshotDesc, srcConf, inputFs, inputRoot, snapshotDir);</span> |
| <span class="source-line-no">1095</span><span id="line-1095"> }</span> |
| <span class="source-line-no">1096</span><span id="line-1096"></span> |
| <span class="source-line-no">1097</span><span id="line-1097"> // Find the necessary directory which need to change owner and group</span> |
| <span class="source-line-no">1098</span><span id="line-1098"> Path needSetOwnerDir = SnapshotDescriptionUtils.getSnapshotRootDir(outputRoot);</span> |
| <span class="source-line-no">1099</span><span id="line-1099"> if (outputFs.exists(needSetOwnerDir)) {</span> |
| <span class="source-line-no">1100</span><span id="line-1100"> if (skipTmp) {</span> |
| <span class="source-line-no">1101</span><span id="line-1101"> needSetOwnerDir = outputSnapshotDir;</span> |
| <span class="source-line-no">1102</span><span id="line-1102"> } else {</span> |
| <span class="source-line-no">1103</span><span id="line-1103"> needSetOwnerDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(outputRoot, destConf);</span> |
| <span class="source-line-no">1104</span><span id="line-1104"> if (outputFs.exists(needSetOwnerDir)) {</span> |
| <span class="source-line-no">1105</span><span id="line-1105"> needSetOwnerDir = snapshotTmpDir;</span> |
| <span class="source-line-no">1106</span><span id="line-1106"> }</span> |
| <span class="source-line-no">1107</span><span id="line-1107"> }</span> |
| <span class="source-line-no">1108</span><span id="line-1108"> }</span> |
| <span class="source-line-no">1109</span><span id="line-1109"></span> |
| <span class="source-line-no">1110</span><span id="line-1110"> // Check if the snapshot already exists</span> |
| <span class="source-line-no">1111</span><span id="line-1111"> if (outputFs.exists(outputSnapshotDir)) {</span> |
| <span class="source-line-no">1112</span><span id="line-1112"> if (overwrite) {</span> |
| <span class="source-line-no">1113</span><span id="line-1113"> if (!outputFs.delete(outputSnapshotDir, true)) {</span> |
| <span class="source-line-no">1114</span><span id="line-1114"> System.err.println("Unable to remove existing snapshot directory: " + outputSnapshotDir);</span> |
| <span class="source-line-no">1115</span><span id="line-1115"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1116</span><span id="line-1116"> }</span> |
| <span class="source-line-no">1117</span><span id="line-1117"> } else {</span> |
| <span class="source-line-no">1118</span><span id="line-1118"> System.err.println("The snapshot '" + targetName + "' already exists in the destination: "</span> |
| <span class="source-line-no">1119</span><span id="line-1119"> + outputSnapshotDir);</span> |
| <span class="source-line-no">1120</span><span id="line-1120"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1121</span><span id="line-1121"> }</span> |
| <span class="source-line-no">1122</span><span id="line-1122"> }</span> |
| <span class="source-line-no">1123</span><span id="line-1123"></span> |
| <span class="source-line-no">1124</span><span id="line-1124"> if (!skipTmp) {</span> |
| <span class="source-line-no">1125</span><span id="line-1125"> // Check if the snapshot already in-progress</span> |
| <span class="source-line-no">1126</span><span id="line-1126"> if (outputFs.exists(snapshotTmpDir)) {</span> |
| <span class="source-line-no">1127</span><span id="line-1127"> if (overwrite) {</span> |
| <span class="source-line-no">1128</span><span id="line-1128"> if (!outputFs.delete(snapshotTmpDir, true)) {</span> |
| <span class="source-line-no">1129</span><span id="line-1129"> System.err</span> |
| <span class="source-line-no">1130</span><span id="line-1130"> .println("Unable to remove existing snapshot tmp directory: " + snapshotTmpDir);</span> |
| <span class="source-line-no">1131</span><span id="line-1131"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1132</span><span id="line-1132"> }</span> |
| <span class="source-line-no">1133</span><span id="line-1133"> } else {</span> |
| <span class="source-line-no">1134</span><span id="line-1134"> System.err</span> |
| <span class="source-line-no">1135</span><span id="line-1135"> .println("A snapshot with the same name '" + targetName + "' may be in-progress");</span> |
| <span class="source-line-no">1136</span><span id="line-1136"> System.err</span> |
| <span class="source-line-no">1137</span><span id="line-1137"> .println("Please check " + snapshotTmpDir + ". If the snapshot has completed, ");</span> |
| <span class="source-line-no">1138</span><span id="line-1138"> System.err</span> |
| <span class="source-line-no">1139</span><span id="line-1139"> .println("consider removing " + snapshotTmpDir + " by using the -overwrite option");</span> |
| <span class="source-line-no">1140</span><span id="line-1140"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1141</span><span id="line-1141"> }</span> |
| <span class="source-line-no">1142</span><span id="line-1142"> }</span> |
| <span class="source-line-no">1143</span><span id="line-1143"> }</span> |
| <span class="source-line-no">1144</span><span id="line-1144"></span> |
| <span class="source-line-no">1145</span><span id="line-1145"> // Step 1 - Copy fs1:/.snapshot/<snapshot> to fs2:/.snapshot/.tmp/<snapshot></span> |
| <span class="source-line-no">1146</span><span id="line-1146"> // The snapshot references must be copied before the hfiles otherwise the cleaner</span> |
| <span class="source-line-no">1147</span><span id="line-1147"> // will remove them because they are unreferenced.</span> |
| <span class="source-line-no">1148</span><span id="line-1148"> List<Path> travesedPaths = new ArrayList<>();</span> |
| <span class="source-line-no">1149</span><span id="line-1149"> boolean copySucceeded = false;</span> |
| <span class="source-line-no">1150</span><span id="line-1150"> try {</span> |
| <span class="source-line-no">1151</span><span id="line-1151"> LOG.info("Copy Snapshot Manifest from " + snapshotDir + " to " + initialOutputSnapshotDir);</span> |
| <span class="source-line-no">1152</span><span id="line-1152"> travesedPaths =</span> |
| <span class="source-line-no">1153</span><span id="line-1153"> FSUtils.copyFilesParallel(inputFs, snapshotDir, outputFs, initialOutputSnapshotDir, conf,</span> |
| <span class="source-line-no">1154</span><span id="line-1154"> conf.getInt(CONF_COPY_MANIFEST_THREADS, DEFAULT_COPY_MANIFEST_THREADS));</span> |
| <span class="source-line-no">1155</span><span id="line-1155"> copySucceeded = true;</span> |
| <span class="source-line-no">1156</span><span id="line-1156"> } catch (IOException e) {</span> |
| <span class="source-line-no">1157</span><span id="line-1157"> throw new ExportSnapshotException("Failed to copy the snapshot directory: from=" + snapshotDir</span> |
| <span class="source-line-no">1158</span><span id="line-1158"> + " to=" + initialOutputSnapshotDir, e);</span> |
| <span class="source-line-no">1159</span><span id="line-1159"> } finally {</span> |
| <span class="source-line-no">1160</span><span id="line-1160"> if (copySucceeded) {</span> |
| <span class="source-line-no">1161</span><span id="line-1161"> if (filesUser != null || filesGroup != null) {</span> |
| <span class="source-line-no">1162</span><span id="line-1162"> LOG.warn(</span> |
| <span class="source-line-no">1163</span><span id="line-1163"> (filesUser == null ? "" : "Change the owner of " + needSetOwnerDir + " to " + filesUser)</span> |
| <span class="source-line-no">1164</span><span id="line-1164"> + (filesGroup == null</span> |
| <span class="source-line-no">1165</span><span id="line-1165"> ? ""</span> |
| <span class="source-line-no">1166</span><span id="line-1166"> : ", Change the group of " + needSetOwnerDir + " to " + filesGroup));</span> |
| <span class="source-line-no">1167</span><span id="line-1167"> setOwnerParallel(outputFs, filesUser, filesGroup, conf, travesedPaths);</span> |
| <span class="source-line-no">1168</span><span id="line-1168"> }</span> |
| <span class="source-line-no">1169</span><span id="line-1169"> if (filesMode > 0) {</span> |
| <span class="source-line-no">1170</span><span id="line-1170"> LOG.warn("Change the permission of " + needSetOwnerDir + " to " + filesMode);</span> |
| <span class="source-line-no">1171</span><span id="line-1171"> setPermissionParallel(outputFs, (short) filesMode, travesedPaths, conf);</span> |
| <span class="source-line-no">1172</span><span id="line-1172"> }</span> |
| <span class="source-line-no">1173</span><span id="line-1173"> }</span> |
| <span class="source-line-no">1174</span><span id="line-1174"> }</span> |
| <span class="source-line-no">1175</span><span id="line-1175"></span> |
| <span class="source-line-no">1176</span><span id="line-1176"> // Write a new .snapshotinfo if the target name is different from the source name or we want to</span> |
| <span class="source-line-no">1177</span><span id="line-1177"> // reset TTL for target snapshot.</span> |
| <span class="source-line-no">1178</span><span id="line-1178"> if (!targetName.equals(snapshotName) || resetTtl) {</span> |
| <span class="source-line-no">1179</span><span id="line-1179"> SnapshotDescription.Builder snapshotDescBuilder =</span> |
| <span class="source-line-no">1180</span><span id="line-1180"> SnapshotDescriptionUtils.readSnapshotInfo(inputFs, snapshotDir).toBuilder();</span> |
| <span class="source-line-no">1181</span><span id="line-1181"> if (!targetName.equals(snapshotName)) {</span> |
| <span class="source-line-no">1182</span><span id="line-1182"> snapshotDescBuilder.setName(targetName);</span> |
| <span class="source-line-no">1183</span><span id="line-1183"> }</span> |
| <span class="source-line-no">1184</span><span id="line-1184"> if (resetTtl) {</span> |
| <span class="source-line-no">1185</span><span id="line-1185"> snapshotDescBuilder.setTtl(HConstants.DEFAULT_SNAPSHOT_TTL);</span> |
| <span class="source-line-no">1186</span><span id="line-1186"> }</span> |
| <span class="source-line-no">1187</span><span id="line-1187"> SnapshotDescriptionUtils.writeSnapshotInfo(snapshotDescBuilder.build(),</span> |
| <span class="source-line-no">1188</span><span id="line-1188"> initialOutputSnapshotDir, outputFs);</span> |
| <span class="source-line-no">1189</span><span id="line-1189"> if (filesUser != null || filesGroup != null) {</span> |
| <span class="source-line-no">1190</span><span id="line-1190"> outputFs.setOwner(</span> |
| <span class="source-line-no">1191</span><span id="line-1191"> new Path(initialOutputSnapshotDir, SnapshotDescriptionUtils.SNAPSHOTINFO_FILE), filesUser,</span> |
| <span class="source-line-no">1192</span><span id="line-1192"> filesGroup);</span> |
| <span class="source-line-no">1193</span><span id="line-1193"> }</span> |
| <span class="source-line-no">1194</span><span id="line-1194"> if (filesMode > 0) {</span> |
| <span class="source-line-no">1195</span><span id="line-1195"> outputFs.setPermission(</span> |
| <span class="source-line-no">1196</span><span id="line-1196"> new Path(initialOutputSnapshotDir, SnapshotDescriptionUtils.SNAPSHOTINFO_FILE),</span> |
| <span class="source-line-no">1197</span><span id="line-1197"> new FsPermission((short) filesMode));</span> |
| <span class="source-line-no">1198</span><span id="line-1198"> }</span> |
| <span class="source-line-no">1199</span><span id="line-1199"> }</span> |
| <span class="source-line-no">1200</span><span id="line-1200"></span> |
| <span class="source-line-no">1201</span><span id="line-1201"> // Step 2 - Start MR Job to copy files</span> |
| <span class="source-line-no">1202</span><span id="line-1202"> // The snapshot references must be copied before the files otherwise the files gets removed</span> |
| <span class="source-line-no">1203</span><span id="line-1203"> // by the HFileArchiver, since they have no references.</span> |
| <span class="source-line-no">1204</span><span id="line-1204"> try {</span> |
| <span class="source-line-no">1205</span><span id="line-1205"> runCopyJob(inputRoot, outputRoot, snapshotName, snapshotDir, verifyChecksum, filesUser,</span> |
| <span class="source-line-no">1206</span><span id="line-1206"> filesGroup, filesMode, mappers, bandwidthMB);</span> |
| <span class="source-line-no">1207</span><span id="line-1207"></span> |
| <span class="source-line-no">1208</span><span id="line-1208"> LOG.info("Finalize the Snapshot Export");</span> |
| <span class="source-line-no">1209</span><span id="line-1209"> if (!skipTmp) {</span> |
| <span class="source-line-no">1210</span><span id="line-1210"> // Step 3 - Rename fs2:/.snapshot/.tmp/<snapshot> fs2:/.snapshot/<snapshot></span> |
| <span class="source-line-no">1211</span><span id="line-1211"> if (!outputFs.rename(snapshotTmpDir, outputSnapshotDir)) {</span> |
| <span class="source-line-no">1212</span><span id="line-1212"> throw new ExportSnapshotException("Unable to rename snapshot directory from="</span> |
| <span class="source-line-no">1213</span><span id="line-1213"> + snapshotTmpDir + " to=" + outputSnapshotDir);</span> |
| <span class="source-line-no">1214</span><span id="line-1214"> }</span> |
| <span class="source-line-no">1215</span><span id="line-1215"> }</span> |
| <span class="source-line-no">1216</span><span id="line-1216"></span> |
| <span class="source-line-no">1217</span><span id="line-1217"> // Step 4 - Verify snapshot integrity</span> |
| <span class="source-line-no">1218</span><span id="line-1218"> if (verifyTarget) {</span> |
| <span class="source-line-no">1219</span><span id="line-1219"> LOG.info("Verify the exported snapshot's expiration status and integrity.");</span> |
| <span class="source-line-no">1220</span><span id="line-1220"> SnapshotDescription targetSnapshotDesc =</span> |
| <span class="source-line-no">1221</span><span id="line-1221"> SnapshotDescriptionUtils.readSnapshotInfo(outputFs, outputSnapshotDir);</span> |
| <span class="source-line-no">1222</span><span id="line-1222"> verifySnapshot(targetSnapshotDesc, destConf, outputFs, outputRoot, outputSnapshotDir);</span> |
| <span class="source-line-no">1223</span><span id="line-1223"> }</span> |
| <span class="source-line-no">1224</span><span id="line-1224"></span> |
| <span class="source-line-no">1225</span><span id="line-1225"> LOG.info("Export Completed: " + targetName);</span> |
| <span class="source-line-no">1226</span><span id="line-1226"> return EXIT_SUCCESS;</span> |
| <span class="source-line-no">1227</span><span id="line-1227"> } catch (Exception e) {</span> |
| <span class="source-line-no">1228</span><span id="line-1228"> LOG.error("Snapshot export failed", e);</span> |
| <span class="source-line-no">1229</span><span id="line-1229"> if (!skipTmp) {</span> |
| <span class="source-line-no">1230</span><span id="line-1230"> outputFs.delete(snapshotTmpDir, true);</span> |
| <span class="source-line-no">1231</span><span id="line-1231"> }</span> |
| <span class="source-line-no">1232</span><span id="line-1232"> outputFs.delete(outputSnapshotDir, true);</span> |
| <span class="source-line-no">1233</span><span id="line-1233"> return EXIT_FAILURE;</span> |
| <span class="source-line-no">1234</span><span id="line-1234"> }</span> |
| <span class="source-line-no">1235</span><span id="line-1235"> }</span> |
| <span class="source-line-no">1236</span><span id="line-1236"></span> |
| <span class="source-line-no">1237</span><span id="line-1237"> @Override</span> |
| <span class="source-line-no">1238</span><span id="line-1238"> protected void printUsage() {</span> |
| <span class="source-line-no">1239</span><span id="line-1239"> super.printUsage();</span> |
| <span class="source-line-no">1240</span><span id="line-1240"> System.out.println("\n" + "Examples:\n" + " hbase snapshot export \\\n"</span> |
| <span class="source-line-no">1241</span><span id="line-1241"> + " --snapshot MySnapshot --copy-to hdfs://srv2:8082/hbase \\\n"</span> |
| <span class="source-line-no">1242</span><span id="line-1242"> + " --chuser MyUser --chgroup MyGroup --chmod 700 --mappers 16\n" + "\n"</span> |
| <span class="source-line-no">1243</span><span id="line-1243"> + " hbase snapshot export \\\n"</span> |
| <span class="source-line-no">1244</span><span id="line-1244"> + " --snapshot MySnapshot --copy-from hdfs://srv2:8082/hbase \\\n"</span> |
| <span class="source-line-no">1245</span><span id="line-1245"> + " --copy-to hdfs://srv1:50070/hbase");</span> |
| <span class="source-line-no">1246</span><span id="line-1246"> }</span> |
| <span class="source-line-no">1247</span><span id="line-1247"></span> |
| <span class="source-line-no">1248</span><span id="line-1248"> @Override</span> |
| <span class="source-line-no">1249</span><span id="line-1249"> protected void addOptions() {</span> |
| <span class="source-line-no">1250</span><span id="line-1250"> addRequiredOption(Options.SNAPSHOT);</span> |
| <span class="source-line-no">1251</span><span id="line-1251"> addOption(Options.COPY_TO);</span> |
| <span class="source-line-no">1252</span><span id="line-1252"> addOption(Options.COPY_FROM);</span> |
| <span class="source-line-no">1253</span><span id="line-1253"> addOption(Options.TARGET_NAME);</span> |
| <span class="source-line-no">1254</span><span id="line-1254"> addOption(Options.NO_CHECKSUM_VERIFY);</span> |
| <span class="source-line-no">1255</span><span id="line-1255"> addOption(Options.NO_TARGET_VERIFY);</span> |
| <span class="source-line-no">1256</span><span id="line-1256"> addOption(Options.NO_SOURCE_VERIFY);</span> |
| <span class="source-line-no">1257</span><span id="line-1257"> addOption(Options.OVERWRITE);</span> |
| <span class="source-line-no">1258</span><span id="line-1258"> addOption(Options.CHUSER);</span> |
| <span class="source-line-no">1259</span><span id="line-1259"> addOption(Options.CHGROUP);</span> |
| <span class="source-line-no">1260</span><span id="line-1260"> addOption(Options.CHMOD);</span> |
| <span class="source-line-no">1261</span><span id="line-1261"> addOption(Options.MAPPERS);</span> |
| <span class="source-line-no">1262</span><span id="line-1262"> addOption(Options.BANDWIDTH);</span> |
| <span class="source-line-no">1263</span><span id="line-1263"> addOption(Options.RESET_TTL);</span> |
| <span class="source-line-no">1264</span><span id="line-1264"> }</span> |
| <span class="source-line-no">1265</span><span id="line-1265"></span> |
| <span class="source-line-no">1266</span><span id="line-1266"> public static void main(String[] args) {</span> |
| <span class="source-line-no">1267</span><span id="line-1267"> new ExportSnapshot().doStaticMain(args);</span> |
| <span class="source-line-no">1268</span><span id="line-1268"> }</span> |
| <span class="source-line-no">1269</span><span id="line-1269">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
