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<div class="subTitle">org.apache.hadoop.mapreduce.v2.util</div>
<h2 title="Class MRApps" class="title">Class MRApps</h2>
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<li>org.apache.hadoop.yarn.util.Apps</li>
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<li>org.apache.hadoop.mapreduce.v2.util.MRApps</li>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public class <span class="typeNameLabel">MRApps</span>
extends org.apache.hadoop.yarn.util.Apps</pre>
<div class="block">Helper class for MR applications</div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.TaskAttemptStateUI.html" title="enum in org.apache.hadoop.mapreduce.v2.util">MRApps.TaskAttemptStateUI</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.TaskStateUI.html" title="enum in org.apache.hadoop.mapreduce.v2.util">MRApps.TaskStateUI</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#LOG">LOG</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.yarn.util.Apps</h3>
<code>APP, ID</code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#MRApps--">MRApps</a></span>()</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#addLog4jSystemProperties-org.apache.hadoop.mapred.Task-java.util.List-org.apache.hadoop.conf.Configuration-">addLog4jSystemProperties</a></span>(org.apache.hadoop.mapred.Task&nbsp;task,
<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>&lt;<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>&gt;&nbsp;vargs,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Add the JVM system properties necessary to configure
<code>ContainerLogAppender</code> or
<code>ContainerRollingLogAppender</code>.</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/mapreduce/v2/util/MRApps.html#addToEnvironment-java.util.Map-java.lang.String-java.lang.String-org.apache.hadoop.conf.Configuration-">addToEnvironment</a></span>(<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>&lt;<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>&gt;&nbsp;environment,
<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>&nbsp;variable,
<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>&nbsp;value,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#createJobClassLoader-org.apache.hadoop.conf.Configuration-">createJobClassLoader</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Creates a <code>ApplicationClassLoader</code> if
<code>MRJobConfig.MAPREDUCE_JOB_CLASSLOADER</code> is set to true, and
the APP_CLASSPATH environment variable is set.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<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/mapreduce/v2/util/MRApps.html#crossPlatformifyMREnv-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.api.ApplicationConstants.Environment-">crossPlatformifyMREnv</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
org.apache.hadoop.yarn.api.ApplicationConstants.Environment&nbsp;env)</code>&nbsp;</td>
</tr>
<tr id="i4" 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/mapreduce/v2/util/MRApps.html#getChildLogLevel-org.apache.hadoop.conf.Configuration-boolean-">getChildLogLevel</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
boolean&nbsp;isMap)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#getEndJobCommitFailureFile-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.mapreduce.v2.api.records.JobId-">getEndJobCommitFailureFile</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&nbsp;user,
<a href="../../../../../../org/apache/hadoop/mapreduce/v2/api/records/JobId.html" title="class in org.apache.hadoop.mapreduce.v2.api.records">JobId</a>&nbsp;jobId)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#getEndJobCommitSuccessFile-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.mapreduce.v2.api.records.JobId-">getEndJobCommitSuccessFile</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&nbsp;user,
<a href="../../../../../../org/apache/hadoop/mapreduce/v2/api/records/JobId.html" title="class in org.apache.hadoop.mapreduce.v2.api.records">JobId</a>&nbsp;jobId)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<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/mapreduce/v2/util/MRApps.html#getJobFile-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.mapreduce.JobID-">getJobFile</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&nbsp;user,
org.apache.hadoop.mapreduce.JobID&nbsp;jobId)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#getStagingAreaDir-org.apache.hadoop.conf.Configuration-java.lang.String-">getStagingAreaDir</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&nbsp;user)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#getStartJobCommitFile-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.mapreduce.v2.api.records.JobId-">getStartJobCommitFile</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&nbsp;user,
<a href="../../../../../../org/apache/hadoop/mapreduce/v2/api/records/JobId.html" title="class in org.apache.hadoop.mapreduce.v2.api.records">JobId</a>&nbsp;jobId)</code>&nbsp;</td>
</tr>
<tr id="i10" 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/mapreduce/v2/util/MRApps.html#getSystemPropertiesToLog-org.apache.hadoop.conf.Configuration-">getSystemPropertiesToLog</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Return lines for system property keys and values per configuration.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setClassLoader-java.lang.ClassLoader-org.apache.hadoop.conf.Configuration-">setClassLoader</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</a>&nbsp;classLoader,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Sets the provided classloader on the given configuration and as the thread
context classloader if the classloader is not null.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setClasspath-java.util.Map-org.apache.hadoop.conf.Configuration-">setClasspath</a></span>(<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>&lt;<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>&gt;&nbsp;environment,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setEnvFromInputProperty-java.util.Map-java.lang.String-java.lang.String-org.apache.hadoop.conf.Configuration-">setEnvFromInputProperty</a></span>(<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>&lt;<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>&gt;&nbsp;env,
<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>&nbsp;propName,
<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>&nbsp;defaultPropValue,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setEnvFromInputString-java.util.Map-java.lang.String-org.apache.hadoop.conf.Configuration-">setEnvFromInputString</a></span>(<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>&lt;<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>&gt;&nbsp;env,
<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>&nbsp;envString,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setJobClassLoader-org.apache.hadoop.conf.Configuration-">setJobClassLoader</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Creates and sets a <code>ApplicationClassLoader</code> on the given
configuration and as the thread context classloader, if
<code>MRJobConfig.MAPREDUCE_JOB_CLASSLOADER</code> is set to true, and
the APP_CLASSPATH environment variable is set.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setupDistributedCache-org.apache.hadoop.conf.Configuration-java.util.Map-">setupDistributedCache</a></span>(org.apache.hadoop.conf.Configuration&nbsp;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>&lt;<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>,org.apache.hadoop.yarn.api.records.LocalResource&gt;&nbsp;localResources)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#setupDistributedCacheLocal-org.apache.hadoop.conf.Configuration-">setupDistributedCacheLocal</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Set up the DistributedCache related configs to make
<code>DistributedCache.getLocalCacheFiles(Configuration)</code>
and
<code>DistributedCache.getLocalCacheArchives(Configuration)</code>
working.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.TaskAttemptStateUI.html" title="enum in org.apache.hadoop.mapreduce.v2.util">MRApps.TaskAttemptStateUI</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/v2/util/MRApps.html#taskAttemptState-java.lang.String-">taskAttemptState</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>&nbsp;attemptStateStr)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
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org.apache.hadoop.conf.Configuration&nbsp;conf)
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<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 static&nbsp;void&nbsp;setJobClassLoader(org.apache.hadoop.conf.Configuration&nbsp;conf)
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<div class="block">Creates and sets a <code>ApplicationClassLoader</code> on the given
configuration and as the thread context classloader, if
<code>MRJobConfig.MAPREDUCE_JOB_CLASSLOADER</code> is set to true, and
the APP_CLASSPATH environment variable is set.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</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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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</a>&nbsp;createJobClassLoader(org.apache.hadoop.conf.Configuration&nbsp;conf)
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<div class="block">Creates a <code>ApplicationClassLoader</code> if
<code>MRJobConfig.MAPREDUCE_JOB_CLASSLOADER</code> is set to true, and
the APP_CLASSPATH environment variable is set.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the created job classloader, or null if the job classloader is not
enabled or the APP_CLASSPATH environment variable is not set</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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<dd><code>conf</code> - </dd>
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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>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<h4>setupDistributedCacheLocal</h4>
<pre>public static&nbsp;void&nbsp;setupDistributedCacheLocal(org.apache.hadoop.conf.Configuration&nbsp;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></pre>
<div class="block">Set up the DistributedCache related configs to make
<code>DistributedCache.getLocalCacheFiles(Configuration)</code>
and
<code>DistributedCache.getLocalCacheArchives(Configuration)</code>
working.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</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>getChildLogLevel</h4>
<pre>public static&nbsp;<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>&nbsp;getChildLogLevel(org.apache.hadoop.conf.Configuration&nbsp;conf,
boolean&nbsp;isMap)</pre>
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<h4>addLog4jSystemProperties</h4>
<pre>public static&nbsp;void&nbsp;addLog4jSystemProperties(org.apache.hadoop.mapred.Task&nbsp;task,
<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>&lt;<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>&gt;&nbsp;vargs,
org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block">Add the JVM system properties necessary to configure
<code>ContainerLogAppender</code> or
<code>ContainerRollingLogAppender</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>task</code> - for map/reduce, or null for app master</dd>
<dd><code>vargs</code> - the argument list to append to</dd>
<dd><code>conf</code> - configuration of MR job</dd>
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<pre>public static&nbsp;<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>&nbsp;getSystemPropertiesToLog(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block">Return lines for system property keys and values per configuration.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the formatted string for the system property lines or null if no
properties are specified.</dd>
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<h4>setEnvFromInputString</h4>
<pre>public static&nbsp;void&nbsp;setEnvFromInputString(<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>&lt;<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>&gt;&nbsp;env,
<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>&nbsp;envString,
org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
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<pre>public static&nbsp;void&nbsp;setEnvFromInputProperty(<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>&lt;<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>&gt;&nbsp;env,
<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>&nbsp;propName,
<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>&nbsp;defaultPropValue,
org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
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<pre>@InterfaceAudience.Public
@InterfaceStability.Unstable
public static&nbsp;void&nbsp;addToEnvironment(<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>&lt;<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>&gt;&nbsp;environment,
<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>&nbsp;variable,
<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>&nbsp;value,
org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
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<h4>crossPlatformifyMREnv</h4>
<pre>public static&nbsp;<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>&nbsp;crossPlatformifyMREnv(org.apache.hadoop.conf.Configuration&nbsp;conf,
org.apache.hadoop.yarn.api.ApplicationConstants.Environment&nbsp;env)</pre>
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