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From git-site-r...@apache.org
Subject [30/32] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Fri, 02 Jun 2017 15:00:31 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7e7efd3e/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html
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diff --git a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html
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@@ -0,0 +1,581 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * or more contributor license agreements.  See the NOTICE file<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * regarding copyright ownership.  The ASF licenses this file<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * with the License.  You may obtain a copy of the License at<a name="line.8"></a>
+<span class="sourceLineNo">009</span> *<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *<a name="line.11"></a>
+<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
+<span class="sourceLineNo">017</span> */<a name="line.17"></a>
+<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.mapreduce;<a name="line.18"></a>
+<span class="sourceLineNo">019</span><a name="line.19"></a>
+<span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.io.UnsupportedEncodingException;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.util.HashMap;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.UUID;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.TreeMap;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.TreeSet;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Collections;<a name="line.29"></a>
+<span class="sourceLineNo">030</span><a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.commons.logging.Log;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.commons.logging.LogFactory;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.RegionLocator;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Table;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.conf.Configurable;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.conf.Configuration;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.fs.FileSystem;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.fs.Path;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.Cell;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.HConstants;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.TableName;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.io.IOUtils;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.io.SequenceFile;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.io.SequenceFile.Reader;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.io.SequenceFile.Writer;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.mapreduce.Job;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.mapreduce.OutputFormat;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.mapreduce.Partitioner;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.mapreduce.RecordWriter;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.64"></a>
+<span class="sourceLineNo">065</span><a name="line.65"></a>
+<span class="sourceLineNo">066</span>import com.google.common.annotations.VisibleForTesting;<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>/**<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * Create 3 level tree directory, first level is using table name as parent directory and then use<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * family name as child directory, and all related HFiles for one family are under child directory<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * -tableName1<a name="line.71"></a>
+<span class="sourceLineNo">072</span> *   -columnFamilyName1<a name="line.72"></a>
+<span class="sourceLineNo">073</span> *     -HFile (region1)<a name="line.73"></a>
+<span class="sourceLineNo">074</span> *   -columnFamilyName2<a name="line.74"></a>
+<span class="sourceLineNo">075</span> *     -HFile1 (region1)<a name="line.75"></a>
+<span class="sourceLineNo">076</span> *     -HFile2 (region2)<a name="line.76"></a>
+<span class="sourceLineNo">077</span> *     -HFile3 (region3)<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * -tableName2<a name="line.78"></a>
+<span class="sourceLineNo">079</span> *   -columnFamilyName1<a name="line.79"></a>
+<span class="sourceLineNo">080</span> *     -HFile (region1)<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * family directory and its hfiles match the output of HFileOutputFormat2<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * @see org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2<a name="line.82"></a>
+<span class="sourceLineNo">083</span> */<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>@InterfaceAudience.Public<a name="line.85"></a>
+<span class="sourceLineNo">086</span>@VisibleForTesting<a name="line.86"></a>
+<span class="sourceLineNo">087</span>public class MultiTableHFileOutputFormat extends FileOutputFormat&lt;ImmutableBytesWritable, Cell&gt; {<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  private static final Log LOG = LogFactory.getLog(MultiTableHFileOutputFormat.class);<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  @Override<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  public RecordWriter&lt;ImmutableBytesWritable, Cell&gt;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>  getRecordWriter(final TaskAttemptContext context) throws IOException, InterruptedException {<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    return createMultiHFileRecordWriter(context);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  }<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span>  static &lt;V extends Cell&gt; RecordWriter&lt;ImmutableBytesWritable, V&gt;<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  createMultiHFileRecordWriter(final TaskAttemptContext context) throws IOException {<a name="line.97"></a>
+<span class="sourceLineNo">098</span><a name="line.98"></a>
+<span class="sourceLineNo">099</span>    // Get the path of the output directory<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    final Path outputPath = FileOutputFormat.getOutputPath(context);<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    final Path outputDir = new FileOutputCommitter(outputPath, context).getWorkPath();<a name="line.101"></a>
+<span class="sourceLineNo">102</span>    final Configuration conf = context.getConfiguration();<a name="line.102"></a>
+<span class="sourceLineNo">103</span>    final FileSystem fs = outputDir.getFileSystem(conf);<a name="line.103"></a>
+<span class="sourceLineNo">104</span><a name="line.104"></a>
+<span class="sourceLineNo">105</span>    Connection conn = ConnectionFactory.createConnection(conf);<a name="line.105"></a>
+<span class="sourceLineNo">106</span>    Admin admin = conn.getAdmin();<a name="line.106"></a>
+<span class="sourceLineNo">107</span><a name="line.107"></a>
+<span class="sourceLineNo">108</span>    // Map of existing tables, avoid calling getTable() everytime<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    final Map&lt;ImmutableBytesWritable, Table&gt; tables = new HashMap&lt;&gt;();<a name="line.109"></a>
+<span class="sourceLineNo">110</span><a name="line.110"></a>
+<span class="sourceLineNo">111</span>    // Map of tables to writers<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    final Map&lt;ImmutableBytesWritable, RecordWriter&lt;ImmutableBytesWritable, V&gt;&gt; tableWriters = new HashMap&lt;&gt;();<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span>    return new RecordWriter&lt;ImmutableBytesWritable, V&gt;() {<a name="line.114"></a>
+<span class="sourceLineNo">115</span>      @Override<a name="line.115"></a>
+<span class="sourceLineNo">116</span>      public void write(ImmutableBytesWritable tableName, V cell)<a name="line.116"></a>
+<span class="sourceLineNo">117</span>          throws IOException, InterruptedException {<a name="line.117"></a>
+<span class="sourceLineNo">118</span>        RecordWriter&lt;ImmutableBytesWritable, V&gt; tableWriter = tableWriters.get(tableName);<a name="line.118"></a>
+<span class="sourceLineNo">119</span>        // if there is new table, verify that table directory exists<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        if (tableWriter == null) {<a name="line.120"></a>
+<span class="sourceLineNo">121</span>          // using table name as directory name<a name="line.121"></a>
+<span class="sourceLineNo">122</span>          final Path tableOutputDir = new Path(outputDir, Bytes.toString(tableName.copyBytes()));<a name="line.122"></a>
+<span class="sourceLineNo">123</span>          fs.mkdirs(tableOutputDir);<a name="line.123"></a>
+<span class="sourceLineNo">124</span>          LOG.info("Writing Table '" + tableName.toString() + "' data into following directory"<a name="line.124"></a>
+<span class="sourceLineNo">125</span>              + tableOutputDir.toString());<a name="line.125"></a>
+<span class="sourceLineNo">126</span>          // Configure for tableWriter, if table exist, write configuration of table into conf<a name="line.126"></a>
+<span class="sourceLineNo">127</span>          Table table = null;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>          if (tables.containsKey(tableName)) {<a name="line.128"></a>
+<span class="sourceLineNo">129</span>            table = tables.get(tableName);<a name="line.129"></a>
+<span class="sourceLineNo">130</span>          } else {<a name="line.130"></a>
+<span class="sourceLineNo">131</span>            table = getTable(tableName.copyBytes(), conn, admin);<a name="line.131"></a>
+<span class="sourceLineNo">132</span>            tables.put(tableName, table);<a name="line.132"></a>
+<span class="sourceLineNo">133</span>          }<a name="line.133"></a>
+<span class="sourceLineNo">134</span>          if (table != null) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>            configureForOneTable(conf, table.getTableDescriptor());<a name="line.135"></a>
+<span class="sourceLineNo">136</span>          }<a name="line.136"></a>
+<span class="sourceLineNo">137</span>          // Create writer for one specific table<a name="line.137"></a>
+<span class="sourceLineNo">138</span>          tableWriter = new HFileOutputFormat2.HFileRecordWriter&lt;&gt;(context, tableOutputDir);<a name="line.138"></a>
+<span class="sourceLineNo">139</span>          // Put table into map<a name="line.139"></a>
+<span class="sourceLineNo">140</span>          tableWriters.put(tableName, tableWriter);<a name="line.140"></a>
+<span class="sourceLineNo">141</span>        }<a name="line.141"></a>
+<span class="sourceLineNo">142</span>        // Write &lt;Row, Cell&gt; into tableWriter<a name="line.142"></a>
+<span class="sourceLineNo">143</span>        // in the original code, it does not use Row<a name="line.143"></a>
+<span class="sourceLineNo">144</span>        tableWriter.write(null, cell);<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      }<a name="line.145"></a>
+<span class="sourceLineNo">146</span><a name="line.146"></a>
+<span class="sourceLineNo">147</span>      @Override<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      public void close(TaskAttemptContext c) throws IOException, InterruptedException {<a name="line.148"></a>
+<span class="sourceLineNo">149</span>        for (RecordWriter&lt;ImmutableBytesWritable, V&gt; writer : tableWriters.values()) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span>          writer.close(c);<a name="line.150"></a>
+<span class="sourceLineNo">151</span>        }<a name="line.151"></a>
+<span class="sourceLineNo">152</span>        if (conn != null) {<a name="line.152"></a>
+<span class="sourceLineNo">153</span>          conn.close();<a name="line.153"></a>
+<span class="sourceLineNo">154</span>        }<a name="line.154"></a>
+<span class="sourceLineNo">155</span>        if (admin != null) {<a name="line.155"></a>
+<span class="sourceLineNo">156</span>          admin.close();<a name="line.156"></a>
+<span class="sourceLineNo">157</span>        }<a name="line.157"></a>
+<span class="sourceLineNo">158</span>      }<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    };<a name="line.159"></a>
+<span class="sourceLineNo">160</span>  }<a name="line.160"></a>
+<span class="sourceLineNo">161</span><a name="line.161"></a>
+<span class="sourceLineNo">162</span>  /**<a name="line.162"></a>
+<span class="sourceLineNo">163</span>   * Configure for one table, should be used before creating a new HFileRecordWriter,<a name="line.163"></a>
+<span class="sourceLineNo">164</span>   * Set compression algorithms and related configuration based on column families<a name="line.164"></a>
+<span class="sourceLineNo">165</span>   */<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  private static void configureForOneTable(Configuration conf, final HTableDescriptor tableDescriptor)<a name="line.166"></a>
+<span class="sourceLineNo">167</span>      throws UnsupportedEncodingException {<a name="line.167"></a>
+<span class="sourceLineNo">168</span>    HFileOutputFormat2.configureCompression(conf, tableDescriptor);<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    HFileOutputFormat2.configureBlockSize(tableDescriptor, conf);<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    HFileOutputFormat2.configureBloomType(tableDescriptor, conf);<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    HFileOutputFormat2.configureDataBlockEncoding(tableDescriptor, conf);<a name="line.171"></a>
+<span class="sourceLineNo">172</span>  }<a name="line.172"></a>
+<span class="sourceLineNo">173</span><a name="line.173"></a>
+<span class="sourceLineNo">174</span>  /**<a name="line.174"></a>
+<span class="sourceLineNo">175</span>   * Configure a MapReduce Job to output HFiles for performing an incremental load into<a name="line.175"></a>
+<span class="sourceLineNo">176</span>   * the multiple tables.<a name="line.176"></a>
+<span class="sourceLineNo">177</span>   * &lt;ul&gt;<a name="line.177"></a>
+<span class="sourceLineNo">178</span>   *   &lt;li&gt;Inspects the tables to configure a partitioner based on their region boundaries&lt;/li&gt;<a name="line.178"></a>
+<span class="sourceLineNo">179</span>   *   &lt;li&gt;Writes the partitions file and configures the partitioner&lt;/li&gt;<a name="line.179"></a>
+<span class="sourceLineNo">180</span>   *   &lt;li&gt;Sets the number of reduce tasks to match the total number of all tables' regions&lt;/li&gt;<a name="line.180"></a>
+<span class="sourceLineNo">181</span>   *   &lt;li&gt;Sets the reducer up to perform the appropriate sorting (KeyValueSortReducer)&lt;/li&gt;<a name="line.181"></a>
+<span class="sourceLineNo">182</span>   * &lt;/ul&gt;<a name="line.182"></a>
+<span class="sourceLineNo">183</span>   *<a name="line.183"></a>
+<span class="sourceLineNo">184</span>   * ConfigureIncrementalLoad has set up partitioner and reducer for mapreduce job.<a name="line.184"></a>
+<span class="sourceLineNo">185</span>   * Caller needs to setup input path, output path and mapper<a name="line.185"></a>
+<span class="sourceLineNo">186</span>   *<a name="line.186"></a>
+<span class="sourceLineNo">187</span>   * @param job<a name="line.187"></a>
+<span class="sourceLineNo">188</span>   * @param tables A list of tables to inspects<a name="line.188"></a>
+<span class="sourceLineNo">189</span>   * @throws IOException<a name="line.189"></a>
+<span class="sourceLineNo">190</span>   */<a name="line.190"></a>
+<span class="sourceLineNo">191</span>  public static void configureIncrementalLoad(Job job, List&lt;TableName&gt; tables) throws IOException {<a name="line.191"></a>
+<span class="sourceLineNo">192</span>    configureIncrementalLoad(job, tables, MultiTableHFileOutputFormat.class);<a name="line.192"></a>
+<span class="sourceLineNo">193</span>  }<a name="line.193"></a>
+<span class="sourceLineNo">194</span><a name="line.194"></a>
+<span class="sourceLineNo">195</span>  public static void configureIncrementalLoad(Job job, List&lt;TableName&gt; tables,<a name="line.195"></a>
+<span class="sourceLineNo">196</span>      Class&lt;? extends OutputFormat&lt;?, ?&gt;&gt; cls) throws IOException {<a name="line.196"></a>
+<span class="sourceLineNo">197</span><a name="line.197"></a>
+<span class="sourceLineNo">198</span>    Configuration conf = job.getConfiguration();<a name="line.198"></a>
+<span class="sourceLineNo">199</span>    Map&lt;ImmutableBytesWritable, List&lt;ImmutableBytesWritable&gt;&gt; tableSplitKeys =<a name="line.199"></a>
+<span class="sourceLineNo">200</span>        MultiHFilePartitioner.getTablesRegionStartKeys(conf, tables);<a name="line.200"></a>
+<span class="sourceLineNo">201</span>    configureIncrementalLoad(job, tableSplitKeys, cls);<a name="line.201"></a>
+<span class="sourceLineNo">202</span>  }<a name="line.202"></a>
+<span class="sourceLineNo">203</span><a name="line.203"></a>
+<span class="sourceLineNo">204</span>  /**<a name="line.204"></a>
+<span class="sourceLineNo">205</span>   * Same purpose as configureIncrementalLoad(Job job, List&lt;TableName&gt; tables)<a name="line.205"></a>
+<span class="sourceLineNo">206</span>   * Used when region startKeys of each table is available, input as &lt;TableName, List&lt;RegionStartKey&gt;&gt;<a name="line.206"></a>
+<span class="sourceLineNo">207</span>   *<a name="line.207"></a>
+<span class="sourceLineNo">208</span>   * Caller needs to transfer TableName and byte[] to ImmutableBytesWritable<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   */<a name="line.209"></a>
+<span class="sourceLineNo">210</span>  public static void configureIncrementalLoad(Job job, Map&lt;ImmutableBytesWritable,<a name="line.210"></a>
+<span class="sourceLineNo">211</span>      List&lt;ImmutableBytesWritable&gt;&gt; tableSplitKeys) throws IOException {<a name="line.211"></a>
+<span class="sourceLineNo">212</span>    configureIncrementalLoad(job, tableSplitKeys, MultiTableHFileOutputFormat.class);<a name="line.212"></a>
+<span class="sourceLineNo">213</span>  }<a name="line.213"></a>
+<span class="sourceLineNo">214</span><a name="line.214"></a>
+<span class="sourceLineNo">215</span>  public static void configureIncrementalLoad(Job job, Map&lt;ImmutableBytesWritable,<a name="line.215"></a>
+<span class="sourceLineNo">216</span>      List&lt;ImmutableBytesWritable&gt;&gt; tableSplitKeys, Class&lt;? extends OutputFormat&lt;?, ?&gt;&gt; cls) throws IOException {<a name="line.216"></a>
+<span class="sourceLineNo">217</span>    Configuration conf = job.getConfiguration();<a name="line.217"></a>
+<span class="sourceLineNo">218</span><a name="line.218"></a>
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+<span class="sourceLineNo">446</span><a name="line.446"></a>
+<span class="sourceLineNo">447</span>          key = ReflectionUtils.newInstance(ImmutableBytesWritable.class, conf);<a name="line.447"></a>
+<span class="sourceLineNo">448</span>          value = ReflectionUtils.newInstance(ImmutableBytesWritable.class, conf);<a name="line.448"></a>
+<span class="sourceLineNo">449</span>        }<a name="line.449"></a>
+<span class="sourceLineNo">450</span>      } finally {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>        IOUtils.cleanup(LOG, reader);<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      }<a name="line.452"></a>
+<span class="sourceLineNo">453</span>      return map;<a name="line.453"></a>
+<span class="sourceLineNo">454</span>    }<a name="line.454"></a>
+<span class="sourceLineNo">455</span><a name="line.455"></a>
+<span class="sourceLineNo">456</span>    @Override<a name="line.456"></a>
+<span class="sourceLineNo">457</span>    public int getPartition(ImmutableBytesWritable table, Cell value, int numPartitions) {<a name="line.457"></a>
+<span class="sourceLineNo">458</span>      byte[] row = CellUtil.cloneRow(value);<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      final ImmutableBytesWritable rowKey = new ImmutableBytesWritable(row);<a name="line.459"></a>
+<span class="sourceLineNo">460</span>      ImmutableBytesWritable splitId = new ImmutableBytesWritable(HConstants.EMPTY_BYTE_ARRAY);<a name="line.460"></a>
+<span class="sourceLineNo">461</span>      //find splitKey by input rowKey<a name="line.461"></a>
+<span class="sourceLineNo">462</span>      if (table_SplitKeys.containsKey(table)) {<a name="line.462"></a>
+<span class="sourceLineNo">463</span>        List&lt;ImmutableBytesWritable&gt; list = table_SplitKeys.get(table);<a name="line.463"></a>
+<span class="sourceLineNo">464</span>        int index = Collections.binarySearch(list, rowKey, new ImmutableBytesWritable.Comparator());<a name="line.464"></a>
+<span class="sourceLineNo">465</span>        if (index &lt; 0) {<a name="line.465"></a>
+<span class="sourceLineNo">466</span>          index = (index + 1) * (-1) - 1;<a name="line.466"></a>
+<span class="sourceLineNo">467</span>        } else if (index == list.size()) {<a name="line.467"></a>
+<span class="sourceLineNo">468</span>          index -= 1;<a name="line.468"></a>
+<span class="sourceLineNo">469</span>        }<a name="line.469"></a>
+<span class="sourceLineNo">470</span>        if (index &lt; 0) {<a name="line.470"></a>
+<span class="sourceLineNo">471</span>          index = 0;<a name="line.471"></a>
+<span class="sourceLineNo">472</span>          LOG.error("row key can not less than HConstants.EMPTY_BYTE_ARRAY ");<a name="line.472"></a>
+<span class="sourceLineNo">473</span>        }<a name="line.473"></a>
+<span class="sourceLineNo">474</span>        splitId = list.get(index);<a name="line.474"></a>
+<span class="sourceLineNo">475</span>      }<a name="line.475"></a>
+<span class="sourceLineNo">476</span><a name="line.476"></a>
+<span class="sourceLineNo">477</span>      // find the id of the reducer for the input<a name="line.477"></a>
+<span class="sourceLineNo">478</span>      Integer id = partitionMap.get(new TableSplitKeyPair(table, splitId));<a name="line.478"></a>
+<span class="sourceLineNo">479</span>      if (id == null) {<a name="line.479"></a>
+<span class="sourceLineNo">480</span>          LOG.warn("Can not get reducer id for input record");<a name="line.480"></a>
+<span class="sourceLineNo">481</span>          return -1;<a name="line.481"></a>
+<span class="sourceLineNo">482</span>      }<a name="line.482"></a>
+<span class="sourceLineNo">483</span>      return id.intValue() % numPartitions;<a name="line.483"></a>
+<span class="sourceLineNo">484</span>    }<a name="line.484"></a>
+<span class="sourceLineNo">485</span><a name="line.485"></a>
+<span class="sourceLineNo">486</span>    /**<a name="line.486"></a>
+<span class="sourceLineNo">487</span>     * A class store pair&lt;TableName, SplitKey&gt;, has two main usage<a name="line.487"></a>
+<span class="sourceLineNo">488</span>     * 1. store tableName and one of its splitKey as a pair<a name="line.488"></a>
+<span class="sourceLineNo">489</span>     * 2. implement comparable, so that partitioner can find splitKey of its input cell<a name="line.489"></a>
+<span class="sourceLineNo">490</span>     */<a name="line.490"></a>
+<span class="sourceLineNo">491</span>    static class TableSplitKeyPair extends Pair&lt;ImmutableBytesWritable, ImmutableBytesWritable&gt;<a name="line.491"></a>
+<span class="sourceLineNo">492</span>        implements Comparable&lt;TableSplitKeyPair&gt; {<a name="line.492"></a>
+<span class="sourceLineNo">493</span><a name="line.493"></a>
+<span class="sourceLineNo">494</span>      private static final long serialVersionUID = -6485999667666325594L;<a name="line.494"></a>
+<span class="sourceLineNo">495</span><a name="line.495"></a>
+<span class="sourceLineNo">496</span>      public TableSplitKeyPair(ImmutableBytesWritable a, ImmutableBytesWritable b) {<a name="line.496"></a>
+<span class="sourceLineNo">497</span>        super(a, b);<a name="line.497"></a>
+<span class="sourceLineNo">498</span>      }<a name="line.498"></a>
+<span class="sourceLineNo">499</span><a name="line.499"></a>
+<span class="sourceLineNo">500</span>      @Override<a name="line.500"></a>
+<span class="sourceLineNo">501</span>      public int compareTo(TableSplitKeyPair other) {<a name="line.501"></a>
+<span class="sourceLineNo">502</span>        if (this.getFirst().equals(other.getFirst())) {<a name="line.502"></a>
+<span class="sourceLineNo">503</span>          return this.getSecond().compareTo(other.getSecond());<a name="line.503"></a>
+<span class="sourceLineNo">504</span>        }<a name="line.504"></a>
+<span class="sourceLineNo">505</span>        return this.getFirst().compareTo(other.getFirst());<a name="line.505"></a>
+<span class="sourceLineNo">506</span>      }<a name="line.506"></a>
+<span class="sourceLineNo">507</span>    }<a name="line.507"></a>
+<span class="sourceLineNo">508</span>  }<a name="line.508"></a>
+<span class="sourceLineNo">509</span>}<a name="line.509"></a>
+
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7e7efd3e/bulk-loads.html
----------------------------------------------------------------------
diff --git a/bulk-loads.html b/bulk-loads.html
index 024d400..eeee49e 100644
--- a/bulk-loads.html
+++ b/bulk-loads.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20170601" />
+    <meta name="Date-Revision-yyyymmdd" content="20170602" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013;  
       Bulk Loads in Apache HBase (TM)
@@ -311,7 +311,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2017-06-01</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2017-06-02</li>
             </p>
                 </div>
 


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