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apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-mapreduce-client / hadoop-mapreduce-client-app / apidocs / org / apache / hadoop / mapreduce / v2 / app / rm / RMCommunicator.html
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<div class="subTitle">org.apache.hadoop.mapreduce.v2.app.rm</div>
<h2 title="Class RMCommunicator" class="title">Class RMCommunicator</h2>
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<li>org.apache.hadoop.service.AbstractService</li>
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<li>org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator</li>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/local/LocalContainerAllocator.html" title="class in org.apache.hadoop.mapreduce.v2.app.local">LocalContainerAllocator</a>, <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMContainerRequestor.html" title="class in org.apache.hadoop.mapreduce.v2.app.rm">RMContainerRequestor</a></dd>
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<pre>public abstract class <span class="typeNameLabel">RMCommunicator</span>
extends org.apache.hadoop.service.AbstractService
implements <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm">RMHeartbeatHandler</a></pre>
<div class="block">Registers/unregisters to RM and sends heartbeats to RM.</div>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.AllocatorRunnable.html" title="class in org.apache.hadoop.mapreduce.v2.app.rm">RMCommunicator.AllocatorRunnable</a></span></code>&nbsp;</td>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.hadoop.service.Service</h3>
<code>org.apache.hadoop.service.Service.STATE</code></li>
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<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#allocatorThread">allocatorThread</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>protected <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;org.apache.hadoop.yarn.api.records.ApplicationAccessType,<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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#applicationACLs">applicationACLs</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>protected org.apache.hadoop.yarn.api.records.ApplicationId</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#applicationId">applicationId</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>protected org.apache.hadoop.yarn.event.EventHandler</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#eventHandler">eventHandler</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#isSignalled">isSignalled</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>protected org.apache.hadoop.yarn.api.ApplicationMasterProtocol</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#scheduler">scheduler</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#RMCommunicator-org.apache.hadoop.mapreduce.v2.app.client.ClientService-org.apache.hadoop.mapreduce.v2.app.AppContext-">RMCommunicator</a></span>(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/client/ClientService.html" title="interface in org.apache.hadoop.mapreduce.v2.app.client">ClientService</a>&nbsp;clientService,
<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a>&nbsp;context)</code>&nbsp;</td>
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<td class="colFirst"><code>protected org.apache.hadoop.yarn.api.ApplicationMasterProtocol</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#createSchedulerProxy--">createSchedulerProxy</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#doUnregistration--">doUnregistration</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getApplicationProgress--">getApplicationProgress</a></span>()</code>
<div class="block">Get the appProgress.</div>
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<td class="colFirst"><code>protected <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getContext--">getContext</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected <a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Job.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">Job</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getJob--">getJob</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getLastHeartbeatTime--">getLastHeartbeatTime</a></span>()</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>protected org.apache.hadoop.yarn.api.records.Resource</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getMaxContainerCapability--">getMaxContainerCapability</a></span>()</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/EnumSet.html?is-external=true" title="class or interface in java.util">EnumSet</a>&lt;org.apache.hadoop.yarn.proto.YarnServiceProtos.SchedulerResourceTypes&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#getSchedulerResourceTypes--">getSchedulerResourceTypes</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#heartbeat--">heartbeat</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#isApplicationMasterRegistered--">isApplicationMasterRegistered</a></span>()</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#register--">register</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#runOnNextHeartbeat-java.lang.Runnable-">runOnNextHeartbeat</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a>&nbsp;callback)</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#serviceInit-org.apache.hadoop.conf.Configuration-">serviceInit</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#serviceStart--">serviceStart</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#serviceStop--">serviceStop</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#setShouldUnregister-boolean-">setShouldUnregister</a></span>(boolean&nbsp;shouldUnregister)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#setSignalled-boolean-">setSignalled</a></span>(boolean&nbsp;isSignalled)</code>&nbsp;</td>
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<tr id="i17" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#startAllocatorThread--">startAllocatorThread</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.html#unregister--">unregister</a></span>()</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.service.AbstractService</h3>
<code>close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop</code></li>
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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#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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<h3>Field Detail</h3>
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<h4>applicationId</h4>
<pre>protected&nbsp;org.apache.hadoop.yarn.api.records.ApplicationId applicationId</pre>
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<h4>allocatorThread</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang">Thread</a> allocatorThread</pre>
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<h4>eventHandler</h4>
<pre>protected&nbsp;org.apache.hadoop.yarn.event.EventHandler eventHandler</pre>
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<h4>scheduler</h4>
<pre>protected&nbsp;org.apache.hadoop.yarn.api.ApplicationMasterProtocol scheduler</pre>
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<h4>applicationACLs</h4>
<pre>protected&nbsp;<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;org.apache.hadoop.yarn.api.records.ApplicationAccessType,<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; applicationACLs</pre>
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<h4>isSignalled</h4>
<pre>protected volatile&nbsp;boolean isSignalled</pre>
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<h4>RMCommunicator</h4>
<pre>public&nbsp;RMCommunicator(<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/client/ClientService.html" title="interface in org.apache.hadoop.mapreduce.v2.app.client">ClientService</a>&nbsp;clientService,
<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a>&nbsp;context)</pre>
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<pre>protected&nbsp;void&nbsp;serviceInit(org.apache.hadoop.conf.Configuration&nbsp;conf)
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>
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<pre>protected&nbsp;void&nbsp;serviceStart()
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<pre>protected&nbsp;<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/AppContext.html" title="interface in org.apache.hadoop.mapreduce.v2.app">AppContext</a>&nbsp;getContext()</pre>
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<pre>protected&nbsp;<a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/job/Job.html" title="interface in org.apache.hadoop.mapreduce.v2.app.job">Job</a>&nbsp;getJob()</pre>
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<pre>protected&nbsp;float&nbsp;getApplicationProgress()</pre>
<div class="block">Get the appProgress. Can be used only after this component is started.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the appProgress.</dd>
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<pre>protected&nbsp;void&nbsp;register()</pre>
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<pre>protected&nbsp;void&nbsp;unregister()</pre>
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<pre>protected&nbsp;void&nbsp;doUnregistration()
throws org.apache.hadoop.yarn.exceptions.YarnException,
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.hadoop.yarn.exceptions.YarnException</code></dd>
<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>protected&nbsp;org.apache.hadoop.yarn.api.records.Resource&nbsp;getMaxContainerCapability()</pre>
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<pre>protected&nbsp;void&nbsp;serviceStop()
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<pre>protected&nbsp;void&nbsp;startAllocatorThread()</pre>
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<pre>protected&nbsp;org.apache.hadoop.yarn.api.ApplicationMasterProtocol&nbsp;createSchedulerProxy()</pre>
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<pre>protected abstract&nbsp;void&nbsp;heartbeat()
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>
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<pre>public&nbsp;long&nbsp;getLastHeartbeatTime()</pre>
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<dd><code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html#getLastHeartbeatTime--">getLastHeartbeatTime</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm">RMHeartbeatHandler</a></code></dd>
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<pre>public&nbsp;void&nbsp;runOnNextHeartbeat(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a>&nbsp;callback)</pre>
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<dd><code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html#runOnNextHeartbeat-java.lang.Runnable-">runOnNextHeartbeat</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/hadoop/mapreduce/v2/app/rm/RMHeartbeatHandler.html" title="interface in org.apache.hadoop.mapreduce.v2.app.rm">RMHeartbeatHandler</a></code></dd>
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<pre>public&nbsp;void&nbsp;setShouldUnregister(boolean&nbsp;shouldUnregister)</pre>
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<pre>public&nbsp;void&nbsp;setSignalled(boolean&nbsp;isSignalled)</pre>
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<pre>protected&nbsp;boolean&nbsp;isApplicationMasterRegistered()</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/EnumSet.html?is-external=true" title="class or interface in java.util">EnumSet</a>&lt;org.apache.hadoop.yarn.proto.YarnServiceProtos.SchedulerResourceTypes&gt;&nbsp;getSchedulerResourceTypes()</pre>
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