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| <h2 title="Class MultiTableHFileOutputFormat" class="title">Class MultiTableHFileOutputFormat</h2> |
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| <li>org.apache.hadoop.mapreduce.OutputFormat<K,V></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.mapreduce.lib.output.FileOutputFormat<<a href="../../../../../org/apache/hadoop/hbase/io/ImmutableBytesWritable.html" title="class in org.apache.hadoop.hbase.io">ImmutableBytesWritable</a>,<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>></li> |
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| <li><a href="../../../../../org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html" title="class in org.apache.hadoop.hbase.mapreduce">org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2</a></li> |
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| <pre>@InterfaceAudience.Public |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#line.47">MultiTableHFileOutputFormat</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html" title="class in org.apache.hadoop.hbase.mapreduce">HFileOutputFormat2</a></pre> |
| <div class="block">Create 3 level tree directory, first level is using table name as parent |
| directory and then use family name as child directory, and all related HFiles |
| for one family are under child directory |
| -tableName1 |
| -columnFamilyName1 |
| -columnFamilyName2 |
| -HFiles |
| -tableName2 |
| -columnFamilyName1 |
| -HFiles |
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| <code>BASE_OUTPUT_NAME, COMPRESS, COMPRESS_CODEC, COMPRESS_TYPE, OUTDIR, PART</code></li> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#MultiTableHFileOutputFormat--">MultiTableHFileOutputFormat</a></span>()</code> </td> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#configureIncrementalLoad-org.apache.hadoop.mapreduce.Job-java.util.List-">configureIncrementalLoad</a></span>(org.apache.hadoop.mapreduce.Job job, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.TableInfo> multiTableDescriptors)</code> |
| <div class="block">Analogous to |
| <a href="../../../../../org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html#configureIncrementalLoad-org.apache.hadoop.mapreduce.Job-org.apache.hadoop.hbase.client.TableDescriptor-org.apache.hadoop.hbase.client.RegionLocator-"><code>HFileOutputFormat2.configureIncrementalLoad(Job, TableDescriptor, RegionLocator)</code></a>, |
| this function will configure the requisite number of reducers to write HFiles for multple |
| tables simultaneously</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#createCompositeKey-byte:A-byte:A-">createCompositeKey</a></span>(byte[] tableName, |
| byte[] suffix)</code> |
| <div class="block">Creates a composite key to use as a mapper output key when using |
| MultiTableHFileOutputFormat.configureIncrementaLoad to set up bulk ingest job</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#createCompositeKey-byte:A-org.apache.hadoop.hbase.io.ImmutableBytesWritable-">createCompositeKey</a></span>(byte[] tableName, |
| <a href="../../../../../org/apache/hadoop/hbase/io/ImmutableBytesWritable.html" title="class in org.apache.hadoop.hbase.io">ImmutableBytesWritable</a> suffix)</code> |
| <div class="block">Alternate api which accepts an ImmutableBytesWritable for the suffix</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#createCompositeKey-java.lang.String-org.apache.hadoop.hbase.io.ImmutableBytesWritable-">createCompositeKey</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> tableName, |
| <a href="../../../../../org/apache/hadoop/hbase/io/ImmutableBytesWritable.html" title="class in org.apache.hadoop.hbase.io">ImmutableBytesWritable</a> suffix)</code> |
| <div class="block">Alternate api which accepts a String for the tableName and ImmutableBytesWritable for the |
| suffix</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#getSuffix-byte:A-">getSuffix</a></span>(byte[] keyBytes)</code> </td> |
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| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#getTableName-byte:A-">getTableName</a></span>(byte[] keyBytes)</code> </td> |
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| <code>checkOutputSpecs, getCompressOutput, getDefaultWorkFile, getOutputCommitter, getOutputCompressorClass, getOutputName, getOutputPath, getPathForWorkFile, getUniqueFile, getWorkOutputPath, setCompressOutput, setOutputCompressorClass, setOutputName, setOutputPath</code></li> |
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| <h4>MultiTableHFileOutputFormat</h4> |
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| <pre>public static byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#line.58">createCompositeKey</a>(byte[] tableName, |
| byte[] suffix)</pre> |
| <div class="block">Creates a composite key to use as a mapper output key when using |
| MultiTableHFileOutputFormat.configureIncrementaLoad to set up bulk ingest job</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>tableName</code> - Name of the Table - Eg: TableName.getNameAsString()</dd> |
| <dd><code>suffix</code> - Usually represents a rowkey when creating a mapper key or column family</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>byte[] representation of composite key</dd> |
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| <dt><span class="seeLabel">See Also:</span></dt> |
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| <a href="../../../../../org/apache/hadoop/hbase/io/ImmutableBytesWritable.html" title="class in org.apache.hadoop.hbase.io">ImmutableBytesWritable</a> suffix)</pre> |
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| <dd><a href="../../../../../org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#createCompositeKey-byte:A-byte:A-"><code>createCompositeKey(byte[], byte[])</code></a></dd> |
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| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#line.92">configureIncrementalLoad</a>(org.apache.hadoop.mapreduce.Job job, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.TableInfo> multiTableDescriptors) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Analogous to |
| <a href="../../../../../org/apache/hadoop/hbase/mapreduce/HFileOutputFormat2.html#configureIncrementalLoad-org.apache.hadoop.mapreduce.Job-org.apache.hadoop.hbase.client.TableDescriptor-org.apache.hadoop.hbase.client.RegionLocator-"><code>HFileOutputFormat2.configureIncrementalLoad(Job, TableDescriptor, RegionLocator)</code></a>, |
| this function will configure the requisite number of reducers to write HFiles for multple |
| tables simultaneously</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>job</code> - See <code>Job</code></dd> |
| <dd><code>multiTableDescriptors</code> - Table descriptor and region locator pairs</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>getTableName</h4> |
| <pre>protected static byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#line.111">getTableName</a>(byte[] keyBytes)</pre> |
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| <pre>protected static byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/MultiTableHFileOutputFormat.html#line.116">getSuffix</a>(byte[] keyBytes)</pre> |
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