http://git-wip-us.apache.org/repos/asf/hbase-site/blob/67deb422/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html index 38d76b6..5478df1 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html @@ -90,115 +90,115 @@ <span class="sourceLineNo">082</span>import org.apache.hadoop.io.SequenceFile;<a name="line.82"></a> <span class="sourceLineNo">083</span>import org.apache.hadoop.io.Text;<a name="line.83"></a> <span class="sourceLineNo">084</span>import org.apache.hadoop.mapreduce.Job;<a name="line.84"></a> -<span class="sourceLineNo">085</span>import org.apache.hadoop.mapreduce.OutputFormat;<a name="line.85"></a> -<span class="sourceLineNo">086</span>import org.apache.hadoop.mapreduce.RecordWriter;<a name="line.86"></a> -<span class="sourceLineNo">087</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.87"></a> -<span class="sourceLineNo">088</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter;<a name="line.88"></a> -<span class="sourceLineNo">089</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.89"></a> -<span class="sourceLineNo">090</span>import org.apache.hadoop.mapreduce.lib.partition.TotalOrderPartitioner;<a name="line.90"></a> -<span class="sourceLineNo">091</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.91"></a> -<span class="sourceLineNo">092</span><a name="line.92"></a> -<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<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> * Writes HFiles. Passed Cells must arrive in order.<a name="line.96"></a> -<span class="sourceLineNo">097</span> * Writes current time as the sequence id for the file. Sets the major compacted<a name="line.97"></a> -<span class="sourceLineNo">098</span> * attribute on created @{link {@link HFile}s. Calling write(null,null) will forcibly roll<a name="line.98"></a> -<span class="sourceLineNo">099</span> * all HFiles being written.<a name="line.99"></a> -<span class="sourceLineNo">100</span> * <p><a name="line.100"></a> -<span class="sourceLineNo">101</span> * Using this class as part of a MapReduce job is best done<a name="line.101"></a> -<span class="sourceLineNo">102</span> * using {@link #configureIncrementalLoad(Job, TableDescriptor, RegionLocator)}.<a name="line.102"></a> -<span class="sourceLineNo">103</span> */<a name="line.103"></a> -<span class="sourceLineNo">104</span>@InterfaceAudience.Public<a name="line.104"></a> -<span class="sourceLineNo">105</span>public class HFileOutputFormat2<a name="line.105"></a> -<span class="sourceLineNo">106</span> extends FileOutputFormat<ImmutableBytesWritable, Cell> {<a name="line.106"></a> -<span class="sourceLineNo">107</span> private static final Log LOG = LogFactory.getLog(HFileOutputFormat2.class);<a name="line.107"></a> -<span class="sourceLineNo">108</span> static class TableInfo {<a name="line.108"></a> -<span class="sourceLineNo">109</span> private TableDescriptor tableDesctiptor;<a name="line.109"></a> -<span class="sourceLineNo">110</span> private RegionLocator regionLocator;<a name="line.110"></a> -<span class="sourceLineNo">111</span><a name="line.111"></a> -<span class="sourceLineNo">112</span> public TableInfo(TableDescriptor tableDesctiptor, RegionLocator regionLocator) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> this.tableDesctiptor = tableDesctiptor;<a name="line.113"></a> -<span class="sourceLineNo">114</span> this.regionLocator = regionLocator;<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span><a name="line.116"></a> -<span class="sourceLineNo">117</span> /**<a name="line.117"></a> -<span class="sourceLineNo">118</span> * The modification for the returned HTD doesn't affect the inner TD.<a name="line.118"></a> -<span class="sourceLineNo">119</span> * @return A clone of inner table descriptor<a name="line.119"></a> -<span class="sourceLineNo">120</span> * @deprecated use {@link #getTableDescriptor}<a name="line.120"></a> -<span class="sourceLineNo">121</span> */<a name="line.121"></a> -<span class="sourceLineNo">122</span> @Deprecated<a name="line.122"></a> -<span class="sourceLineNo">123</span> public HTableDescriptor getHTableDescriptor() {<a name="line.123"></a> -<span class="sourceLineNo">124</span> return new HTableDescriptor(tableDesctiptor);<a name="line.124"></a> -<span class="sourceLineNo">125</span> }<a name="line.125"></a> -<span class="sourceLineNo">126</span><a name="line.126"></a> -<span class="sourceLineNo">127</span> public TableDescriptor getTableDescriptor() {<a name="line.127"></a> -<span class="sourceLineNo">128</span> return tableDesctiptor;<a name="line.128"></a> -<span class="sourceLineNo">129</span> }<a name="line.129"></a> -<span class="sourceLineNo">130</span><a name="line.130"></a> -<span class="sourceLineNo">131</span> public RegionLocator getRegionLocator() {<a name="line.131"></a> -<span class="sourceLineNo">132</span> return regionLocator;<a name="line.132"></a> -<span class="sourceLineNo">133</span> }<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span><a name="line.135"></a> -<span class="sourceLineNo">136</span> protected static final byte[] tableSeparator = ";".getBytes(StandardCharsets.UTF_8);<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> protected static byte[] combineTableNameSuffix(byte[] tableName,<a name="line.138"></a> -<span class="sourceLineNo">139</span> byte[] suffix ) {<a name="line.139"></a> -<span class="sourceLineNo">140</span> return Bytes.add(tableName, tableSeparator, suffix);<a name="line.140"></a> -<span class="sourceLineNo">141</span> }<a name="line.141"></a> -<span class="sourceLineNo">142</span><a name="line.142"></a> -<span class="sourceLineNo">143</span> // The following constants are private since these are used by<a name="line.143"></a> -<span class="sourceLineNo">144</span> // HFileOutputFormat2 to internally transfer data between job setup and<a name="line.144"></a> -<span class="sourceLineNo">145</span> // reducer run using conf.<a name="line.145"></a> -<span class="sourceLineNo">146</span> // These should not be changed by the client.<a name="line.146"></a> -<span class="sourceLineNo">147</span> static final String COMPRESSION_FAMILIES_CONF_KEY =<a name="line.147"></a> -<span class="sourceLineNo">148</span> "hbase.hfileoutputformat.families.compression";<a name="line.148"></a> -<span class="sourceLineNo">149</span> static final String BLOOM_TYPE_FAMILIES_CONF_KEY =<a name="line.149"></a> -<span class="sourceLineNo">150</span> "hbase.hfileoutputformat.families.bloomtype";<a name="line.150"></a> -<span class="sourceLineNo">151</span> static final String BLOCK_SIZE_FAMILIES_CONF_KEY =<a name="line.151"></a> -<span class="sourceLineNo">152</span> "hbase.mapreduce.hfileoutputformat.blocksize";<a name="line.152"></a> -<span class="sourceLineNo">153</span> static final String DATABLOCK_ENCODING_FAMILIES_CONF_KEY =<a name="line.153"></a> -<span class="sourceLineNo">154</span> "hbase.mapreduce.hfileoutputformat.families.datablock.encoding";<a name="line.154"></a> -<span class="sourceLineNo">155</span><a name="line.155"></a> -<span class="sourceLineNo">156</span> // This constant is public since the client can modify this when setting<a name="line.156"></a> -<span class="sourceLineNo">157</span> // up their conf object and thus refer to this symbol.<a name="line.157"></a> -<span class="sourceLineNo">158</span> // It is present for backwards compatibility reasons. Use it only to<a name="line.158"></a> -<span class="sourceLineNo">159</span> // override the auto-detection of datablock encoding.<a name="line.159"></a> -<span class="sourceLineNo">160</span> public static final String DATABLOCK_ENCODING_OVERRIDE_CONF_KEY =<a name="line.160"></a> -<span class="sourceLineNo">161</span> "hbase.mapreduce.hfileoutputformat.datablock.encoding";<a name="line.161"></a> -<span class="sourceLineNo">162</span><a name="line.162"></a> -<span class="sourceLineNo">163</span> /**<a name="line.163"></a> -<span class="sourceLineNo">164</span> * Keep locality while generating HFiles for bulkload. See HBASE-12596<a name="line.164"></a> -<span class="sourceLineNo">165</span> */<a name="line.165"></a> -<span class="sourceLineNo">166</span> public static final String LOCALITY_SENSITIVE_CONF_KEY =<a name="line.166"></a> -<span class="sourceLineNo">167</span> "hbase.bulkload.locality.sensitive.enabled";<a name="line.167"></a> -<span class="sourceLineNo">168</span> private static final boolean DEFAULT_LOCALITY_SENSITIVE = true;<a name="line.168"></a> -<span class="sourceLineNo">169</span> static final String OUTPUT_TABLE_NAME_CONF_KEY =<a name="line.169"></a> -<span class="sourceLineNo">170</span> "hbase.mapreduce.hfileoutputformat.table.name";<a name="line.170"></a> -<span class="sourceLineNo">171</span> static final String MULTI_TABLE_HFILEOUTPUTFORMAT_CONF_KEY =<a name="line.171"></a> -<span class="sourceLineNo">172</span> "hbase.mapreduce.use.multi.table.hfileoutputformat";<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> public static final String STORAGE_POLICY_PROPERTY = "hbase.hstore.storagepolicy";<a name="line.174"></a> -<span class="sourceLineNo">175</span> public static final String STORAGE_POLICY_PROPERTY_CF_PREFIX = STORAGE_POLICY_PROPERTY + ".";<a name="line.175"></a> -<span class="sourceLineNo">176</span><a name="line.176"></a> -<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> -<span class="sourceLineNo">178</span> public RecordWriter<ImmutableBytesWritable, Cell> getRecordWriter(<a name="line.178"></a> -<span class="sourceLineNo">179</span> final TaskAttemptContext context) throws IOException, InterruptedException {<a name="line.179"></a> -<span class="sourceLineNo">180</span> return createRecordWriter(context);<a name="line.180"></a> -<span class="sourceLineNo">181</span> }<a name="line.181"></a> -<span class="sourceLineNo">182</span><a name="line.182"></a> -<span class="sourceLineNo">183</span> protected static byte[] getTableNameSuffixedWithFamily(byte[] tableName, byte[] family) {<a name="line.183"></a> -<span class="sourceLineNo">184</span> return combineTableNameSuffix(tableName, family);<a name="line.184"></a> -<span class="sourceLineNo">185</span> }<a name="line.185"></a> -<span class="sourceLineNo">186</span><a name="line.186"></a> -<span class="sourceLineNo">187</span> static <V extends Cell> RecordWriter<ImmutableBytesWritable, V><a name="line.187"></a> -<span class="sourceLineNo">188</span> createRecordWriter(final TaskAttemptContext context)<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> // Get the path of the temporary output file<a name="line.191"></a> -<span class="sourceLineNo">192</span> final Path outputPath = FileOutputFormat.getOutputPath(context);<a name="line.192"></a> -<span class="sourceLineNo">193</span> final Path outputDir = new FileOutputCommitter(outputPath, context).getWorkPath();<a name="line.193"></a> +<span class="sourceLineNo">085</span>import org.apache.hadoop.mapreduce.OutputCommitter;<a name="line.85"></a> +<span class="sourceLineNo">086</span>import org.apache.hadoop.mapreduce.OutputFormat;<a name="line.86"></a> +<span class="sourceLineNo">087</span>import org.apache.hadoop.mapreduce.RecordWriter;<a name="line.87"></a> +<span class="sourceLineNo">088</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.88"></a> +<span class="sourceLineNo">089</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter;<a name="line.89"></a> +<span class="sourceLineNo">090</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.90"></a> +<span class="sourceLineNo">091</span>import org.apache.hadoop.mapreduce.lib.partition.TotalOrderPartitioner;<a name="line.91"></a> +<span class="sourceLineNo">092</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.94"></a> +<span class="sourceLineNo">095</span><a name="line.95"></a> +<span class="sourceLineNo">096</span>/**<a name="line.96"></a> +<span class="sourceLineNo">097</span> * Writes HFiles. Passed Cells must arrive in order.<a name="line.97"></a> +<span class="sourceLineNo">098</span> * Writes current time as the sequence id for the file. Sets the major compacted<a name="line.98"></a> +<span class="sourceLineNo">099</span> * attribute on created @{link {@link HFile}s. Calling write(null,null) will forcibly roll<a name="line.99"></a> +<span class="sourceLineNo">100</span> * all HFiles being written.<a name="line.100"></a> +<span class="sourceLineNo">101</span> * <p><a name="line.101"></a> +<span class="sourceLineNo">102</span> * Using this class as part of a MapReduce job is best done<a name="line.102"></a> +<span class="sourceLineNo">103</span> * using {@link #configureIncrementalLoad(Job, TableDescriptor, RegionLocator)}.<a name="line.103"></a> +<span class="sourceLineNo">104</span> */<a name="line.104"></a> +<span class="sourceLineNo">105</span>@InterfaceAudience.Public<a name="line.105"></a> +<span class="sourceLineNo">106</span>public class HFileOutputFormat2<a name="line.106"></a> +<span class="sourceLineNo">107</span> extends FileOutputFormat<ImmutableBytesWritable, Cell> {<a name="line.107"></a> +<span class="sourceLineNo">108</span> private static final Log LOG = LogFactory.getLog(HFileOutputFormat2.class);<a name="line.108"></a> +<span class="sourceLineNo">109</span> static class TableInfo {<a name="line.109"></a> +<span class="sourceLineNo">110</span> private TableDescriptor tableDesctiptor;<a name="line.110"></a> +<span class="sourceLineNo">111</span> private RegionLocator regionLocator;<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span> public TableInfo(TableDescriptor tableDesctiptor, RegionLocator regionLocator) {<a name="line.113"></a> +<span class="sourceLineNo">114</span> this.tableDesctiptor = tableDesctiptor;<a name="line.114"></a> +<span class="sourceLineNo">115</span> this.regionLocator = regionLocator;<a name="line.115"></a> +<span class="sourceLineNo">116</span> }<a name="line.116"></a> +<span class="sourceLineNo">117</span><a name="line.117"></a> +<span class="sourceLineNo">118</span> /**<a name="line.118"></a> +<span class="sourceLineNo">119</span> * The modification for the returned HTD doesn't affect the inner TD.<a name="line.119"></a> +<span class="sourceLineNo">120</span> * @return A clone of inner table descriptor<a name="line.120"></a> +<span class="sourceLineNo">121</span> * @deprecated use {@link #getTableDescriptor}<a name="line.121"></a> +<span class="sourceLineNo">122</span> */<a name="line.122"></a> +<span class="sourceLineNo">123</span> @Deprecated<a name="line.123"></a> +<span class="sourceLineNo">124</span> public HTableDescriptor getHTableDescriptor() {<a name="line.124"></a> +<span class="sourceLineNo">125</span> return new HTableDescriptor(tableDesctiptor);<a name="line.125"></a> +<span class="sourceLineNo">126</span> }<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> public TableDescriptor getTableDescriptor() {<a name="line.128"></a> +<span class="sourceLineNo">129</span> return tableDesctiptor;<a name="line.129"></a> +<span class="sourceLineNo">130</span> }<a name="line.130"></a> +<span class="sourceLineNo">131</span><a name="line.131"></a> +<span class="sourceLineNo">132</span> public RegionLocator getRegionLocator() {<a name="line.132"></a> +<span class="sourceLineNo">133</span> return regionLocator;<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> protected static final byte[] tableSeparator = ";".getBytes(StandardCharsets.UTF_8);<a name="line.137"></a> +<span class="sourceLineNo">138</span><a name="line.138"></a> +<span class="sourceLineNo">139</span> protected static byte[] combineTableNameSuffix(byte[] tableName,<a name="line.139"></a> +<span class="sourceLineNo">140</span> byte[] suffix ) {<a name="line.140"></a> +<span class="sourceLineNo">141</span> return Bytes.add(tableName, tableSeparator, suffix);<a name="line.141"></a> +<span class="sourceLineNo">142</span> }<a name="line.142"></a> +<span class="sourceLineNo">143</span><a name="line.143"></a> +<span class="sourceLineNo">144</span> // The following constants are private since these are used by<a name="line.144"></a> +<span class="sourceLineNo">145</span> // HFileOutputFormat2 to internally transfer data between job setup and<a name="line.145"></a> +<span class="sourceLineNo">146</span> // reducer run using conf.<a name="line.146"></a> +<span class="sourceLineNo">147</span> // These should not be changed by the client.<a name="line.147"></a> +<span class="sourceLineNo">148</span> static final String COMPRESSION_FAMILIES_CONF_KEY =<a name="line.148"></a> +<span class="sourceLineNo">149</span> "hbase.hfileoutputformat.families.compression";<a name="line.149"></a> +<span class="sourceLineNo">150</span> static final String BLOOM_TYPE_FAMILIES_CONF_KEY =<a name="line.150"></a> +<span class="sourceLineNo">151</span> "hbase.hfileoutputformat.families.bloomtype";<a name="line.151"></a> +<span class="sourceLineNo">152</span> static final String BLOCK_SIZE_FAMILIES_CONF_KEY =<a name="line.152"></a> +<span class="sourceLineNo">153</span> "hbase.mapreduce.hfileoutputformat.blocksize";<a name="line.153"></a> +<span class="sourceLineNo">154</span> static final String DATABLOCK_ENCODING_FAMILIES_CONF_KEY =<a name="line.154"></a> +<span class="sourceLineNo">155</span> "hbase.mapreduce.hfileoutputformat.families.datablock.encoding";<a name="line.155"></a> +<span class="sourceLineNo">156</span><a name="line.156"></a> +<span class="sourceLineNo">157</span> // This constant is public since the client can modify this when setting<a name="line.157"></a> +<span class="sourceLineNo">158</span> // up their conf object and thus refer to this symbol.<a name="line.158"></a> +<span class="sourceLineNo">159</span> // It is present for backwards compatibility reasons. Use it only to<a name="line.159"></a> +<span class="sourceLineNo">160</span> // override the auto-detection of datablock encoding.<a name="line.160"></a> +<span class="sourceLineNo">161</span> public static final String DATABLOCK_ENCODING_OVERRIDE_CONF_KEY =<a name="line.161"></a> +<span class="sourceLineNo">162</span> "hbase.mapreduce.hfileoutputformat.datablock.encoding";<a name="line.162"></a> +<span class="sourceLineNo">163</span><a name="line.163"></a> +<span class="sourceLineNo">164</span> /**<a name="line.164"></a> +<span class="sourceLineNo">165</span> * Keep locality while generating HFiles for bulkload. See HBASE-12596<a name="line.165"></a> +<span class="sourceLineNo">166</span> */<a name="line.166"></a> +<span class="sourceLineNo">167</span> public static final String LOCALITY_SENSITIVE_CONF_KEY =<a name="line.167"></a> +<span class="sourceLineNo">168</span> "hbase.bulkload.locality.sensitive.enabled";<a name="line.168"></a> +<span class="sourceLineNo">169</span> private static final boolean DEFAULT_LOCALITY_SENSITIVE = true;<a name="line.169"></a> +<span class="sourceLineNo">170</span> static final String OUTPUT_TABLE_NAME_CONF_KEY =<a name="line.170"></a> +<span class="sourceLineNo">171</span> "hbase.mapreduce.hfileoutputformat.table.name";<a name="line.171"></a> +<span class="sourceLineNo">172</span> static final String MULTI_TABLE_HFILEOUTPUTFORMAT_CONF_KEY =<a name="line.172"></a> +<span class="sourceLineNo">173</span> "hbase.mapreduce.use.multi.table.hfileoutputformat";<a name="line.173"></a> +<span class="sourceLineNo">174</span><a name="line.174"></a> +<span class="sourceLineNo">175</span> public static final String STORAGE_POLICY_PROPERTY = "hbase.hstore.storagepolicy";<a name="line.175"></a> +<span class="sourceLineNo">176</span> public static final String STORAGE_POLICY_PROPERTY_CF_PREFIX = STORAGE_POLICY_PROPERTY + ".";<a name="line.176"></a> +<span class="sourceLineNo">177</span><a name="line.177"></a> +<span class="sourceLineNo">178</span> @Override<a name="line.178"></a> +<span class="sourceLineNo">179</span> public RecordWriter<ImmutableBytesWritable, Cell> getRecordWriter(<a name="line.179"></a> +<span class="sourceLineNo">180</span> final TaskAttemptContext context) throws IOException, InterruptedException {<a name="line.180"></a> +<span class="sourceLineNo">181</span> return createRecordWriter(context, this.getOutputCommitter(context));<a name="line.181"></a> +<span class="sourceLineNo">182</span> }<a name="line.182"></a> +<span class="sourceLineNo">183</span><a name="line.183"></a> +<span class="sourceLineNo">184</span> protected static byte[] getTableNameSuffixedWithFamily(byte[] tableName, byte[] family) {<a name="line.184"></a> +<span class="sourceLineNo">185</span> return combineTableNameSuffix(tableName, family);<a name="line.185"></a> +<span class="sourceLineNo">186</span> }<a name="line.186"></a> +<span class="sourceLineNo">187</span><a name="line.187"></a> +<span class="sourceLineNo">188</span> static <V extends Cell> RecordWriter<ImmutableBytesWritable, V><a name="line.188"></a> +<span class="sourceLineNo">189</span> createRecordWriter(final TaskAttemptContext context, final OutputCommitter committer)<a name="line.189"></a> +<span class="sourceLineNo">190</span> throws IOException {<a name="line.190"></a> +<span class="sourceLineNo">191</span><a name="line.191"></a> +<span class="sourceLineNo">192</span> // Get the path of the temporary output file<a name="line.192"></a> +<span class="sourceLineNo">193</span> final Path outputDir = ((FileOutputCommitter)committer).getWorkPath();<a name="line.193"></a> <span class="sourceLineNo">194</span> final Configuration conf = context.getConfiguration();<a name="line.194"></a> <span class="sourceLineNo">195</span> final boolean writeMultipleTables = conf.getBoolean(MULTI_TABLE_HFILEOUTPUTFORMAT_CONF_KEY, false) ;<a name="line.195"></a> <span class="sourceLineNo">196</span> final String writeTableNames = conf.get(OUTPUT_TABLE_NAME_CONF_KEY);<a name="line.196"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/67deb422/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/TableSnapshotInputFormat.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/TableSnapshotInputFormat.html b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/TableSnapshotInputFormat.html index bb1b9b6..2ff9932 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/TableSnapshotInputFormat.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/TableSnapshotInputFormat.html @@ -26,195 +26,205 @@ <span class="sourceLineNo">018</span><a name="line.18"></a> <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.mapreduce;<a name="line.19"></a> <span class="sourceLineNo">020</span><a name="line.20"></a> -<span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.21"></a> -<span class="sourceLineNo">022</span>import org.apache.hadoop.fs.Path;<a name="line.22"></a> -<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.Result;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.metrics.ScanMetrics;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.io.Writable;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.mapreduce.InputFormat;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.mapreduce.InputSplit;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.mapreduce.Job;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.mapreduce.JobContext;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.mapreduce.RecordReader;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.36"></a> -<span class="sourceLineNo">037</span><a name="line.37"></a> -<span class="sourceLineNo">038</span>import java.io.DataInput;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import java.io.DataOutput;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import java.io.IOException;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import java.lang.reflect.Method;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import java.util.ArrayList;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import java.util.List;<a name="line.43"></a> +<span class="sourceLineNo">021</span>import java.io.DataInput;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.io.DataOutput;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.lang.reflect.Method;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> +<span class="sourceLineNo">027</span><a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.fs.Path;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Result;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.metrics.ScanMetrics;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.io.Writable;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.mapreduce.InputFormat;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.mapreduce.InputSplit;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.mapreduce.Job;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.mapreduce.JobContext;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.mapreduce.RecordReader;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.43"></a> <span class="sourceLineNo">044</span><a name="line.44"></a> -<span class="sourceLineNo">045</span>/**<a name="line.45"></a> -<span class="sourceLineNo">046</span> * TableSnapshotInputFormat allows a MapReduce job to run over a table snapshot. The job<a name="line.46"></a> -<span class="sourceLineNo">047</span> * bypasses HBase servers, and directly accesses the underlying files (hfile, recovered edits,<a name="line.47"></a> -<span class="sourceLineNo">048</span> * wals, etc) directly to provide maximum performance. The snapshot is not required to be<a name="line.48"></a> -<span class="sourceLineNo">049</span> * restored to the live cluster or cloned. This also allows to run the mapreduce job from an<a name="line.49"></a> -<span class="sourceLineNo">050</span> * online or offline hbase cluster. The snapshot files can be exported by using the<a name="line.50"></a> -<span class="sourceLineNo">051</span> * {@link org.apache.hadoop.hbase.snapshot.ExportSnapshot} tool, to a pure-hdfs cluster,<a name="line.51"></a> -<span class="sourceLineNo">052</span> * and this InputFormat can be used to run the mapreduce job directly over the snapshot files.<a name="line.52"></a> -<span class="sourceLineNo">053</span> * The snapshot should not be deleted while there are jobs reading from snapshot files.<a name="line.53"></a> -<span class="sourceLineNo">054</span> * <p><a name="line.54"></a> -<span class="sourceLineNo">055</span> * Usage is similar to TableInputFormat, and<a name="line.55"></a> -<span class="sourceLineNo">056</span> * {@link TableMapReduceUtil#initTableSnapshotMapperJob(String, Scan, Class, Class, Class, Job, boolean, Path)}<a name="line.56"></a> -<span class="sourceLineNo">057</span> * can be used to configure the job.<a name="line.57"></a> -<span class="sourceLineNo">058</span> * <pre>{@code<a name="line.58"></a> -<span class="sourceLineNo">059</span> * Job job = new Job(conf);<a name="line.59"></a> -<span class="sourceLineNo">060</span> * Scan scan = new Scan();<a name="line.60"></a> -<span class="sourceLineNo">061</span> * TableMapReduceUtil.initTableSnapshotMapperJob(snapshotName,<a name="line.61"></a> -<span class="sourceLineNo">062</span> * scan, MyTableMapper.class, MyMapKeyOutput.class,<a name="line.62"></a> -<span class="sourceLineNo">063</span> * MyMapOutputValueWritable.class, job, true);<a name="line.63"></a> -<span class="sourceLineNo">064</span> * }<a name="line.64"></a> -<span class="sourceLineNo">065</span> * </pre><a name="line.65"></a> -<span class="sourceLineNo">066</span> * <p><a name="line.66"></a> -<span class="sourceLineNo">067</span> * Internally, this input format restores the snapshot into the given tmp directory. Similar to<a name="line.67"></a> -<span class="sourceLineNo">068</span> * {@link TableInputFormat} an InputSplit is created per region. The region is opened for reading<a name="line.68"></a> -<span class="sourceLineNo">069</span> * from each RecordReader. An internal RegionScanner is used to execute the<a name="line.69"></a> -<span class="sourceLineNo">070</span> * {@link org.apache.hadoop.hbase.CellScanner} obtained from the user.<a name="line.70"></a> -<span class="sourceLineNo">071</span> * <p><a name="line.71"></a> -<span class="sourceLineNo">072</span> * HBase owns all the data and snapshot files on the filesystem. Only the 'hbase' user can read from<a name="line.72"></a> -<span class="sourceLineNo">073</span> * snapshot files and data files.<a name="line.73"></a> -<span class="sourceLineNo">074</span> * To read from snapshot files directly from the file system, the user who is running the MR job<a name="line.74"></a> -<span class="sourceLineNo">075</span> * must have sufficient permissions to access snapshot and reference files.<a name="line.75"></a> -<span class="sourceLineNo">076</span> * This means that to run mapreduce over snapshot files, the MR job has to be run as the HBase<a name="line.76"></a> -<span class="sourceLineNo">077</span> * user or the user must have group or other privileges in the filesystem (See HBASE-8369).<a name="line.77"></a> -<span class="sourceLineNo">078</span> * Note that, given other users access to read from snapshot/data files will completely circumvent<a name="line.78"></a> -<span class="sourceLineNo">079</span> * the access control enforced by HBase.<a name="line.79"></a> -<span class="sourceLineNo">080</span> * @see org.apache.hadoop.hbase.client.TableSnapshotScanner<a name="line.80"></a> -<span class="sourceLineNo">081</span> */<a name="line.81"></a> -<span class="sourceLineNo">082</span>@InterfaceAudience.Public<a name="line.82"></a> -<span class="sourceLineNo">083</span>public class TableSnapshotInputFormat extends InputFormat<ImmutableBytesWritable, Result> {<a name="line.83"></a> -<span class="sourceLineNo">084</span><a name="line.84"></a> -<span class="sourceLineNo">085</span> public static class TableSnapshotRegionSplit extends InputSplit implements Writable {<a name="line.85"></a> -<span class="sourceLineNo">086</span> private TableSnapshotInputFormatImpl.InputSplit delegate;<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> // constructor for mapreduce framework / Writable<a name="line.88"></a> -<span class="sourceLineNo">089</span> public TableSnapshotRegionSplit() {<a name="line.89"></a> -<span class="sourceLineNo">090</span> this.delegate = new TableSnapshotInputFormatImpl.InputSplit();<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span><a name="line.92"></a> -<span class="sourceLineNo">093</span> public TableSnapshotRegionSplit(TableSnapshotInputFormatImpl.InputSplit delegate) {<a name="line.93"></a> -<span class="sourceLineNo">094</span> this.delegate = delegate;<a name="line.94"></a> -<span class="sourceLineNo">095</span> }<a name="line.95"></a> -<span class="sourceLineNo">096</span><a name="line.96"></a> -<span class="sourceLineNo">097</span> public TableSnapshotRegionSplit(HTableDescriptor htd, HRegionInfo regionInfo,<a name="line.97"></a> -<span class="sourceLineNo">098</span> List<String> locations, Scan scan, Path restoreDir) {<a name="line.98"></a> -<span class="sourceLineNo">099</span> this.delegate =<a name="line.99"></a> -<span class="sourceLineNo">100</span> new TableSnapshotInputFormatImpl.InputSplit(htd, regionInfo, locations, scan, restoreDir);<a name="line.100"></a> -<span class="sourceLineNo">101</span> }<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span> @Override<a name="line.103"></a> -<span class="sourceLineNo">104</span> public long getLength() throws IOException, InterruptedException {<a name="line.104"></a> -<span class="sourceLineNo">105</span> return delegate.getLength();<a name="line.105"></a> -<span class="sourceLineNo">106</span> }<a name="line.106"></a> -<span class="sourceLineNo">107</span><a name="line.107"></a> -<span class="sourceLineNo">108</span> @Override<a name="line.108"></a> -<span class="sourceLineNo">109</span> public String[] getLocations() throws IOException, InterruptedException {<a name="line.109"></a> -<span class="sourceLineNo">110</span> return delegate.getLocations();<a name="line.110"></a> -<span class="sourceLineNo">111</span> }<a name="line.111"></a> -<span class="sourceLineNo">112</span><a name="line.112"></a> -<span class="sourceLineNo">113</span> @Override<a name="line.113"></a> -<span class="sourceLineNo">114</span> public void write(DataOutput out) throws IOException {<a name="line.114"></a> -<span class="sourceLineNo">115</span> delegate.write(out);<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span><a name="line.117"></a> -<span class="sourceLineNo">118</span> @Override<a name="line.118"></a> -<span class="sourceLineNo">119</span> public void readFields(DataInput in) throws IOException {<a name="line.119"></a> -<span class="sourceLineNo">120</span> delegate.readFields(in);<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a name="line.121"></a> -<span class="sourceLineNo">122</span><a name="line.122"></a> -<span class="sourceLineNo">123</span> public HRegionInfo getRegionInfo() {<a name="line.123"></a> -<span class="sourceLineNo">124</span> return delegate.getRegionInfo();<a name="line.124"></a> -<span class="sourceLineNo">125</span> }<a name="line.125"></a> -<span class="sourceLineNo">126</span><a name="line.126"></a> -<span class="sourceLineNo">127</span> }<a name="line.127"></a> -<span class="sourceLineNo">128</span><a name="line.128"></a> -<span class="sourceLineNo">129</span> @VisibleForTesting<a name="line.129"></a> -<span class="sourceLineNo">130</span> static class TableSnapshotRegionRecordReader extends<a name="line.130"></a> -<span class="sourceLineNo">131</span> RecordReader<ImmutableBytesWritable, Result> {<a name="line.131"></a> -<span class="sourceLineNo">132</span> private TableSnapshotInputFormatImpl.RecordReader delegate =<a name="line.132"></a> -<span class="sourceLineNo">133</span> new TableSnapshotInputFormatImpl.RecordReader();<a name="line.133"></a> -<span class="sourceLineNo">134</span> private TaskAttemptContext context;<a name="line.134"></a> -<span class="sourceLineNo">135</span> private Method getCounter;<a name="line.135"></a> -<span class="sourceLineNo">136</span><a name="line.136"></a> -<span class="sourceLineNo">137</span> @Override<a name="line.137"></a> -<span class="sourceLineNo">138</span> public void initialize(InputSplit split, TaskAttemptContext context) throws IOException,<a name="line.138"></a> -<span class="sourceLineNo">139</span> InterruptedException {<a name="line.139"></a> -<span class="sourceLineNo">140</span> this.context = context;<a name="line.140"></a> -<span class="sourceLineNo">141</span> getCounter = TableRecordReaderImpl.retrieveGetCounterWithStringsParams(context);<a name="line.141"></a> -<span class="sourceLineNo">142</span> delegate.initialize(<a name="line.142"></a> -<span class="sourceLineNo">143</span> ((TableSnapshotRegionSplit) split).delegate,<a name="line.143"></a> -<span class="sourceLineNo">144</span> context.getConfiguration());<a name="line.144"></a> -<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.45"></a> +<span class="sourceLineNo">046</span><a name="line.46"></a> +<span class="sourceLineNo">047</span>/**<a name="line.47"></a> +<span class="sourceLineNo">048</span> * TableSnapshotInputFormat allows a MapReduce job to run over a table snapshot. The job<a name="line.48"></a> +<span class="sourceLineNo">049</span> * bypasses HBase servers, and directly accesses the underlying files (hfile, recovered edits,<a name="line.49"></a> +<span class="sourceLineNo">050</span> * wals, etc) directly to provide maximum performance. The snapshot is not required to be<a name="line.50"></a> +<span class="sourceLineNo">051</span> * restored to the live cluster or cloned. This also allows to run the mapreduce job from an<a name="line.51"></a> +<span class="sourceLineNo">052</span> * online or offline hbase cluster. The snapshot files can be exported by using the<a name="line.52"></a> +<span class="sourceLineNo">053</span> * {@link org.apache.hadoop.hbase.snapshot.ExportSnapshot} tool, to a pure-hdfs cluster,<a name="line.53"></a> +<span class="sourceLineNo">054</span> * and this InputFormat can be used to run the mapreduce job directly over the snapshot files.<a name="line.54"></a> +<span class="sourceLineNo">055</span> * The snapshot should not be deleted while there are jobs reading from snapshot files.<a name="line.55"></a> +<span class="sourceLineNo">056</span> * <p><a name="line.56"></a> +<span class="sourceLineNo">057</span> * Usage is similar to TableInputFormat, and<a name="line.57"></a> +<span class="sourceLineNo">058</span> * {@link TableMapReduceUtil#initTableSnapshotMapperJob(String, Scan, Class, Class, Class, Job, boolean, Path)}<a name="line.58"></a> +<span class="sourceLineNo">059</span> * can be used to configure the job.<a name="line.59"></a> +<span class="sourceLineNo">060</span> * <pre>{@code<a name="line.60"></a> +<span class="sourceLineNo">061</span> * Job job = new Job(conf);<a name="line.61"></a> +<span class="sourceLineNo">062</span> * Scan scan = new Scan();<a name="line.62"></a> +<span class="sourceLineNo">063</span> * TableMapReduceUtil.initTableSnapshotMapperJob(snapshotName,<a name="line.63"></a> +<span class="sourceLineNo">064</span> * scan, MyTableMapper.class, MyMapKeyOutput.class,<a name="line.64"></a> +<span class="sourceLineNo">065</span> * MyMapOutputValueWritable.class, job, true);<a name="line.65"></a> +<span class="sourceLineNo">066</span> * }<a name="line.66"></a> +<span class="sourceLineNo">067</span> * </pre><a name="line.67"></a> +<span class="sourceLineNo">068</span> * <p><a name="line.68"></a> +<span class="sourceLineNo">069</span> * Internally, this input format restores the snapshot into the given tmp directory. Similar to<a name="line.69"></a> +<span class="sourceLineNo">070</span> * {@link TableInputFormat} an InputSplit is created per region. The region is opened for reading<a name="line.70"></a> +<span class="sourceLineNo">071</span> * from each RecordReader. An internal RegionScanner is used to execute the<a name="line.71"></a> +<span class="sourceLineNo">072</span> * {@link org.apache.hadoop.hbase.CellScanner} obtained from the user.<a name="line.72"></a> +<span class="sourceLineNo">073</span> * <p><a name="line.73"></a> +<span class="sourceLineNo">074</span> * HBase owns all the data and snapshot files on the filesystem. Only the 'hbase' user can read from<a name="line.74"></a> +<span class="sourceLineNo">075</span> * snapshot files and data files.<a name="line.75"></a> +<span class="sourceLineNo">076</span> * To read from snapshot files directly from the file system, the user who is running the MR job<a name="line.76"></a> +<span class="sourceLineNo">077</span> * must have sufficient permissions to access snapshot and reference files.<a name="line.77"></a> +<span class="sourceLineNo">078</span> * This means that to run mapreduce over snapshot files, the MR job has to be run as the HBase<a name="line.78"></a> +<span class="sourceLineNo">079</span> * user or the user must have group or other privileges in the filesystem (See HBASE-8369).<a name="line.79"></a> +<span class="sourceLineNo">080</span> * Note that, given other users access to read from snapshot/data files will completely circumvent<a name="line.80"></a> +<span class="sourceLineNo">081</span> * the access control enforced by HBase.<a name="line.81"></a> +<span class="sourceLineNo">082</span> * @see org.apache.hadoop.hbase.client.TableSnapshotScanner<a name="line.82"></a> +<span class="sourceLineNo">083</span> */<a name="line.83"></a> +<span class="sourceLineNo">084</span>@InterfaceAudience.Public<a name="line.84"></a> +<span class="sourceLineNo">085</span>public class TableSnapshotInputFormat extends InputFormat<ImmutableBytesWritable, Result> {<a name="line.85"></a> +<span class="sourceLineNo">086</span><a name="line.86"></a> +<span class="sourceLineNo">087</span> public static class TableSnapshotRegionSplit extends InputSplit implements Writable {<a name="line.87"></a> +<span class="sourceLineNo">088</span> private TableSnapshotInputFormatImpl.InputSplit delegate;<a name="line.88"></a> +<span class="sourceLineNo">089</span><a name="line.89"></a> +<span class="sourceLineNo">090</span> // constructor for mapreduce framework / Writable<a name="line.90"></a> +<span class="sourceLineNo">091</span> public 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