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| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.89">Import</a> |
| extends org.apache.hadoop.conf.Configured |
| implements org.apache.hadoop.util.Tool</pre> |
| <div class="block">Import data written by <a href="../../../../../org/apache/hadoop/hbase/mapreduce/Export.html" title="class in org.apache.hadoop.hbase.mapreduce"><code>Export</code></a>.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#BULK_OUTPUT_CONF_KEY">BULK_OUTPUT_CONF_KEY</a></span></code> </td> |
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| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#CF_RENAME_PROP">CF_RENAME_PROP</a></span></code> </td> |
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| <td class="colFirst"><code>static <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></code></td> |
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| <td class="colFirst"><code>static <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></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/Import.html#addFilterAndArguments-org.apache.hadoop.conf.Configuration-java.lang.Class-java.util.List-">addFilterAndArguments</a></span>(org.apache.hadoop.conf.Configuration conf, |
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| <div class="block">Add a Filter to be instantiated on import</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#configureCfRenaming-org.apache.hadoop.conf.Configuration-java.util.Map-">configureCfRenaming</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> renameMap)</code> |
| <div class="block">Sets a configuration property with key <a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#CF_RENAME_PROP"><code>CF_RENAME_PROP</code></a> in conf that tells |
| the mapper how to rename column families.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.mapreduce.Job</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#createSubmittableJob-org.apache.hadoop.conf.Configuration-java.lang.String:A-">createSubmittableJob</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <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>[] args)</code> |
| <div class="block">Sets up the actual job.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#filterKv-org.apache.hadoop.hbase.filter.Filter-org.apache.hadoop.hbase.Cell-">filterKv</a></span>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a> filter, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> c)</code> |
| <div class="block">Attempt to filter out the keyvalue</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#flushRegionsIfNecessary-org.apache.hadoop.conf.Configuration-">flushRegionsIfNecessary</a></span>(org.apache.hadoop.conf.Configuration conf)</code> |
| <div class="block">If the durability is set to <a href="../../../../../org/apache/hadoop/hbase/client/Durability.html#SKIP_WAL"><code>Durability.SKIP_WAL</code></a> and the data is imported to hbase, we |
| need to flush all the regions of the table as the data is held in memory and is also not |
| present in the Write Ahead Log to replay in scenarios of a crash.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#instantiateFilter-org.apache.hadoop.conf.Configuration-">instantiateFilter</a></span>(org.apache.hadoop.conf.Configuration conf)</code> |
| <div class="block">Create a <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter"><code>Filter</code></a> to apply to all incoming keys (<code>KeyValues</code>) to |
| optionally not include in the job output</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#main-java.lang.String:A-">main</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>[] args)</code> |
| <div class="block">Main entry point.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#run-java.lang.String:A-">run</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>[] args)</code> </td> |
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| <code>getConf, setConf</code></li> |
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| <dl> |
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| <dd><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.mapreduce.Import.WAL_DURABILITY">Constant Field Values</a></dd> |
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| <pre>public static final <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> <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.98">HAS_LARGE_RESULT</a></pre> |
| <dl> |
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| <dd><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.mapreduce.Import.HAS_LARGE_RESULT">Constant Field Values</a></dd> |
| </dl> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h3>Constructor Detail</h3> |
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| <h4>Import</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.89">Import</a>()</pre> |
| </li> |
| </ul> |
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| <h3>Method Detail</h3> |
| <a name="instantiateFilter-org.apache.hadoop.conf.Configuration-"> |
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| <h4>instantiateFilter</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.446">instantiateFilter</a>(org.apache.hadoop.conf.Configuration conf)</pre> |
| <div class="block">Create a <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter"><code>Filter</code></a> to apply to all incoming keys (<code>KeyValues</code>) to |
| optionally not include in the job output</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - <code>Configuration</code> from which to load the filter</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the filter to use for the task, or <tt>null</tt> if no filter to should be used</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the filter is misconfigured</dd> |
| </dl> |
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| <a name="filterKv-org.apache.hadoop.hbase.filter.Filter-org.apache.hadoop.hbase.Cell-"> |
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| <h4>filterKv</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.493">filterKv</a>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a> filter, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> c) |
| 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">Attempt to filter out the keyvalue</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>c</code> - <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase"><code>Cell</code></a> on which to apply the filter</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><tt>null</tt> if the key should not be written, otherwise returns the original |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase"><code>Cell</code></a></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> |
| </dl> |
| </li> |
| </ul> |
| <a name="configureCfRenaming-org.apache.hadoop.conf.Configuration-java.util.Map-"> |
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| <h4>configureCfRenaming</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.570">configureCfRenaming</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<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>> renameMap)</pre> |
| <div class="block"><p>Sets a configuration property with key <a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#CF_RENAME_PROP"><code>CF_RENAME_PROP</code></a> in conf that tells |
| the mapper how to rename column families. |
| |
| <p>Alternately, instead of calling this function, you could set the configuration key |
| <a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#CF_RENAME_PROP"><code>CF_RENAME_PROP</code></a> yourself. The value should look like |
| <pre>srcCf1:destCf1,srcCf2:destCf2,....</pre>. This would have the same effect on |
| the mapper behavior.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - the Configuration in which the <a href="../../../../../org/apache/hadoop/hbase/mapreduce/Import.html#CF_RENAME_PROP"><code>CF_RENAME_PROP</code></a> key will be |
| set</dd> |
| <dd><code>renameMap</code> - a mapping from source CF names to destination CF names</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addFilterAndArguments-org.apache.hadoop.conf.Configuration-java.lang.Class-java.util.List-"> |
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| <h4>addFilterAndArguments</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.597">addFilterAndArguments</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><? extends <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>> clazz, |
| <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><<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>> filterArgs) |
| 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">Add a Filter to be instantiated on import</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - Configuration to update (will be passed to the job)</dd> |
| <dd><code>clazz</code> - <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter"><code>Filter</code></a> subclass to instantiate on the server.</dd> |
| <dd><code>filterArgs</code> - List of arguments to pass to the filter on instantiation</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> |
| </dl> |
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| <pre>public static org.apache.hadoop.mapreduce.Job <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.610">createSubmittableJob</a>(org.apache.hadoop.conf.Configuration conf, |
| <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>[] args) |
| 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">Sets up the actual job.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - The current configuration.</dd> |
| <dd><code>args</code> - The command line parameters.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The newly created job.</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> - When setting up the job fails.</dd> |
| </dl> |
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| <a name="flushRegionsIfNecessary-org.apache.hadoop.conf.Configuration-"> |
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| <h4>flushRegionsIfNecessary</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.724">flushRegionsIfNecessary</a>(org.apache.hadoop.conf.Configuration conf) |
| 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>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <div class="block">If the durability is set to <a href="../../../../../org/apache/hadoop/hbase/client/Durability.html#SKIP_WAL"><code>Durability.SKIP_WAL</code></a> and the data is imported to hbase, we |
| need to flush all the regions of the table as the data is held in memory and is also not |
| present in the Write Ahead Log to replay in scenarios of a crash. This method flushes all the |
| regions of the table in the scenarios of import data to hbase with <a href="../../../../../org/apache/hadoop/hbase/client/Durability.html#SKIP_WAL"><code>Durability.SKIP_WAL</code></a></div> |
| <dl> |
| <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> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
| </dl> |
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| </ul> |
| <a name="run-java.lang.String:A-"> |
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| <h4>run</h4> |
| <pre>public int <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.750">run</a>(<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>[] args) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code>run</code> in interface <code>org.apache.hadoop.util.Tool</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
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| <h4>main</h4> |
| <pre>public static void <a href="../../../../../src-html/org/apache/hadoop/hbase/mapreduce/Import.html#line.783">main</a>(<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>[] args) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Main entry point.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>args</code> - The command line parameters.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code> - When running the job fails.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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