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<div class="subTitle">org.apache.hadoop.mapred</div>
<h2 title="Class YarnOutputFiles" class="title">Class YarnOutputFiles</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li>org.apache.hadoop.mapred.MapOutputFile</li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.mapred.YarnOutputFiles</li>
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<dd>org.apache.hadoop.conf.Configurable</dd>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public class <span class="typeNameLabel">YarnOutputFiles</span>
extends org.apache.hadoop.mapred.MapOutputFile</pre>
<div class="block">Manipulate the working area for the transient store for maps and reduces.
This class is used by map and reduce tasks to identify the directories that
they need to write to/read from for intermediate files. The callers of
these methods are from child space.</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#YarnOutputFiles--">YarnOutputFiles</a></span>()</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.conf.Configuration</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getConf--">getConf</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getInputFile-int-">getInputFile</a></span>(int&nbsp;mapId)</code>
<div class="block">Return a local reduce input file created earlier</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getInputFileForWrite-org.apache.hadoop.mapreduce.TaskID-long-">getInputFileForWrite</a></span>(org.apache.hadoop.mapreduce.TaskID&nbsp;mapId,
long&nbsp;size)</code>
<div class="block">Create a local reduce input file name.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputFile--">getOutputFile</a></span>()</code>
<div class="block">Return the path to local map output file created earlier</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputFileForWrite-long-">getOutputFileForWrite</a></span>(long&nbsp;size)</code>
<div class="block">Create a local map output file name.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputFileForWriteInVolume-org.apache.hadoop.fs.Path-">getOutputFileForWriteInVolume</a></span>(org.apache.hadoop.fs.Path&nbsp;existing)</code>
<div class="block">Create a local map output file name on the same volume.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputIndexFile--">getOutputIndexFile</a></span>()</code>
<div class="block">Return the path to a local map output index file created earlier</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputIndexFileForWrite-long-">getOutputIndexFileForWrite</a></span>(long&nbsp;size)</code>
<div class="block">Create a local map output index file name.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getOutputIndexFileForWriteInVolume-org.apache.hadoop.fs.Path-">getOutputIndexFileForWriteInVolume</a></span>(org.apache.hadoop.fs.Path&nbsp;existing)</code>
<div class="block">Create a local map output index file name on the same volume.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getSpillFile-int-">getSpillFile</a></span>(int&nbsp;spillNumber)</code>
<div class="block">Return a local map spill file created earlier.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getSpillFileForWrite-int-long-">getSpillFileForWrite</a></span>(int&nbsp;spillNumber,
long&nbsp;size)</code>
<div class="block">Create a local map spill file name.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getSpillIndexFile-int-">getSpillIndexFile</a></span>(int&nbsp;spillNumber)</code>
<div class="block">Return a local map spill index file created earlier</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#getSpillIndexFileForWrite-int-long-">getSpillIndexFileForWrite</a></span>(int&nbsp;spillNumber,
long&nbsp;size)</code>
<div class="block">Create a local map spill index file name.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#removeAll--">removeAll</a></span>()</code>
<div class="block">Removes all of the files related to a task.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/mapred/YarnOutputFiles.html#setConf-org.apache.hadoop.conf.Configuration-">setConf</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>YarnOutputFiles</h4>
<pre>public&nbsp;YarnOutputFiles()</pre>
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<a name="getOutputFile--">
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<h4>getOutputFile</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputFile()
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">Return the path to local map output file created earlier</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputFile</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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>
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<h4>getOutputFileForWrite</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputFileForWrite(long&nbsp;size)
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">Create a local map output file name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputFileForWrite</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>size</code> - the size of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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>getOutputFileForWriteInVolume</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputFileForWriteInVolume(org.apache.hadoop.fs.Path&nbsp;existing)</pre>
<div class="block">Create a local map output file name on the same volume.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputFileForWriteInVolume</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
</dl>
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<h4>getOutputIndexFile</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputIndexFile()
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">Return the path to a local map output index file created earlier</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputIndexFile</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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>getOutputIndexFileForWrite</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputIndexFileForWrite(long&nbsp;size)
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">Create a local map output index file name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputIndexFileForWrite</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>size</code> - the size of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getOutputIndexFileForWriteInVolume(org.apache.hadoop.fs.Path&nbsp;existing)</pre>
<div class="block">Create a local map output index file name on the same volume.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getOutputIndexFileForWriteInVolume</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
</dl>
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</ul>
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<h4>getSpillFile</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getSpillFile(int&nbsp;spillNumber)
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">Return a local map spill file created earlier.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getSpillFile</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spillNumber</code> - the number</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getSpillFileForWrite(int&nbsp;spillNumber,
long&nbsp;size)
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">Create a local map spill file name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getSpillFileForWrite</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spillNumber</code> - the number</dd>
<dd><code>size</code> - the size of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getSpillIndexFile(int&nbsp;spillNumber)
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">Return a local map spill index file created earlier</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getSpillIndexFile</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spillNumber</code> - the number</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getSpillIndexFileForWrite(int&nbsp;spillNumber,
long&nbsp;size)
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">Create a local map spill index file name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getSpillIndexFileForWrite</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>spillNumber</code> - the number</dd>
<dd><code>size</code> - the size of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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>getInputFile</h4>
<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getInputFile(int&nbsp;mapId)
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">Return a local reduce input file created earlier</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getInputFile</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mapId</code> - a map task id</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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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<pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;getInputFileForWrite(org.apache.hadoop.mapreduce.TaskID&nbsp;mapId,
long&nbsp;size)
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">Create a local reduce input file name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getInputFileForWrite</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mapId</code> - a map task id</dd>
<dd><code>size</code> - the size of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>path</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>removeAll</h4>
<pre>public&nbsp;void&nbsp;removeAll()
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">Removes all of the files related to a task.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>removeAll</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></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>setConf</h4>
<pre>public&nbsp;void&nbsp;setConf(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>setConf</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.conf.Configurable</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>setConf</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
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<pre>public&nbsp;org.apache.hadoop.conf.Configuration&nbsp;getConf()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getConf</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.conf.Configurable</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>getConf</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.mapred.MapOutputFile</code></dd>
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