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<div class="subTitle">org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair</div>
<h2 title="Class FSLeafQueue" class="title">Class FSLeafQueue</h2>
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<li><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue</a></li>
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<li>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue</li>
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<dd><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/Schedulable.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">Schedulable</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/Queue.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler">Queue</a></dd>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public class <span class="typeNameLabel">FSLeafQueue</span>
extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></pre>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></h3>
<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#maxAMShare">maxAMShare</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#maxContainerAllocation">maxContainerAllocation</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#maxRunningApps">maxRunningApps</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#minShare">minShare</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#parent">parent</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#policy">policy</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#recordFactory">recordFactory</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#scheduler">scheduler</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#weights">weights</a></code></li>
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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/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#FSLeafQueue-java.lang.String-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSParentQueue-">FSLeafQueue</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;name,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FairScheduler</a>&nbsp;scheduler,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSParentQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSParentQueue</a>&nbsp;parent)</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>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#addAssignedApp-org.apache.hadoop.yarn.api.records.ApplicationId-">addAssignedApp</a></span>(org.apache.hadoop.yarn.api.records.ApplicationId&nbsp;applicationId)</code>
<div class="block">This method is called when an application is assigned to this queue
for book-keeping purposes (to be able to determine if the queue is empty).</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.yarn.api.records.Resource</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#assignContainer-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode-">assignContainer</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSSchedulerNode</a>&nbsp;node)</code>
<div class="block">Assign a container on this node if possible, and return the amount of
resources assigned.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#canRunAppAM-org.apache.hadoop.yarn.api.records.Resource-">canRunAppAM</a></span>(org.apache.hadoop.yarn.api.records.Resource&nbsp;amResource)</code>
<div class="block">Check whether this queue can run the Application Master under the
maxAMShare limit.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#collectSchedulerApplications-java.util.Collection-">collectSchedulerApplications</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;org.apache.hadoop.yarn.api.records.ApplicationAttemptId&gt;&nbsp;apps)</code>
<div class="block">Adds all applications in the queue and its subqueues to the given collection.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#dumpStateInternal-java.lang.StringBuilder-">dumpStateInternal</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;sb)</code>
<div class="block">Recursively dump states of all queues.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ActiveUsersManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ActiveUsersManager</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getAbstractUsersManager--">getAbstractUsersManager</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><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="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getChildQueues--">getChildQueues</a></span>()</code>
<div class="block">Gets the children of this queue, if any.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.yarn.api.records.Resource</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getDemand--">getDemand</a></span>()</code>
<div class="block">Maximum number of resources required by this Schedulable.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.yarn.api.records.Resource</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getMaximumContainerAllocation--">getMaximumContainerAllocation</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getNumActiveApps--">getNumActiveApps</a></span>()</code>
<div class="block">TODO: Based on how frequently this is called, we might want to club
counting pending and active apps in the same method.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getNumAssignedApps--">getNumAssignedApps</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getNumPendingApps--">getNumPendingApps</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getNumRunnableApps--">getNumRunnableApps</a></span>()</code>
<div class="block">Return the number of apps for which containers can be allocated.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><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;org.apache.hadoop.yarn.api.records.QueueUserACLInfo&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#getQueueUserAclInfo-org.apache.hadoop.security.UserGroupInformation-">getQueueUserAclInfo</a></span>(org.apache.hadoop.security.UserGroupInformation&nbsp;user)</code>
<div class="block">Get queue ACLs for given <code>user</code>.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#isEmpty--">isEmpty</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#recoverContainer-org.apache.hadoop.yarn.api.records.Resource-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">recoverContainer</a></span>(org.apache.hadoop.yarn.api.records.Resource&nbsp;clusterResource,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt</a>&nbsp;schedulerAttempt,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;rmContainer)</code>
<div class="block">Recover the state of the queue for a given container.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#removeAssignedApp-org.apache.hadoop.yarn.api.records.ApplicationId-">removeAssignedApp</a></span>(org.apache.hadoop.yarn.api.records.ApplicationId&nbsp;applicationId)</code>
<div class="block">This method is called when an application is removed from this queue
during the submit process.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#setWeights-float-">setWeights</a></span>(float&nbsp;weight)</code>
<div class="block">Allows setting weight for a dynamically created queue.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSLeafQueue.html#updateDemand--">updateDemand</a></span>()</code>
<div class="block">Refresh the Schedulable's demand and those of its children if any.</div>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></h3>
<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#decPendingResource-java.lang.String-org.apache.hadoop.yarn.api.records.Resource-">decPendingResource</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#decReservedResource-java.lang.String-org.apache.hadoop.yarn.api.records.Resource-">decReservedResource</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#decUsedResource-org.apache.hadoop.yarn.api.records.Resource-">decUsedResource</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#dumpState--">dumpState</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getAccessibleNodeLabels--">getAccessibleNodeLabels</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getDefaultApplicationPriority--">getDefaultApplicationPriority</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getDefaultNodeLabelExpression--">getDefaultNodeLabelExpression</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getFairShare--">getFairShare</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getMaxAMShare--">getMaxAMShare</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getMaxChildQueueResource--">getMaxChildQueueResource</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getMaxRunningApps--">getMaxRunningApps</a>, <a 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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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<a name="FSLeafQueue-java.lang.String-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSParentQueue-">
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<h4>FSLeafQueue</h4>
<pre>public&nbsp;FSLeafQueue(<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;name,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FairScheduler</a>&nbsp;scheduler,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSParentQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSParentQueue</a>&nbsp;parent)</pre>
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<pre>public&nbsp;void&nbsp;collectSchedulerApplications(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;org.apache.hadoop.yarn.api.records.ApplicationAttemptId&gt;&nbsp;apps)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#collectSchedulerApplications-java.util.Collection-">FSQueue</a></code></span></div>
<div class="block">Adds all applications in the queue and its subqueues to the given collection.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#collectSchedulerApplications-java.util.Collection-">collectSchedulerApplications</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>apps</code> - the collection to add the applications to</dd>
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<pre>public&nbsp;org.apache.hadoop.yarn.api.records.Resource&nbsp;getDemand()</pre>
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<div class="block">Maximum number of resources required by this Schedulable. This is defined as
number of currently utilized resources + number of unlaunched resources (that
are either not yet launched or need to be speculated).</div>
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<pre>public&nbsp;void&nbsp;updateDemand()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/Schedulable.html#updateDemand--">Schedulable</a></code></span></div>
<div class="block">Refresh the Schedulable's demand and those of its children if any.</div>
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<pre>public&nbsp;org.apache.hadoop.yarn.api.records.Resource&nbsp;assignContainer(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSSchedulerNode</a>&nbsp;node)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/Schedulable.html#assignContainer-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode-">Schedulable</a></code></span></div>
<div class="block">Assign a container on this node if possible, and return the amount of
resources assigned.</div>
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<pre>public&nbsp;<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="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a>&gt;&nbsp;getChildQueues()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getChildQueues--">FSQueue</a></code></span></div>
<div class="block">Gets the children of this queue, if any.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getChildQueues--">getChildQueues</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
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<pre>public&nbsp;<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;org.apache.hadoop.yarn.api.records.QueueUserACLInfo&gt;&nbsp;getQueueUserAclInfo(org.apache.hadoop.security.UserGroupInformation&nbsp;user)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/Queue.html#getQueueUserAclInfo-org.apache.hadoop.security.UserGroupInformation-">Queue</a></code></span></div>
<div class="block">Get queue ACLs for given <code>user</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>user</code> - username</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>queue ACLs for user</dd>
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<pre>public&nbsp;int&nbsp;getNumRunnableApps()</pre>
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<div class="block">Return the number of apps for which containers can be allocated.
Includes apps in subqueues.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getNumRunnableApps--">getNumRunnableApps</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
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<pre>public&nbsp;int&nbsp;getNumPendingApps()</pre>
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<pre>public&nbsp;int&nbsp;getNumAssignedApps()</pre>
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<pre>public&nbsp;boolean&nbsp;isEmpty()</pre>
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<pre>public&nbsp;int&nbsp;getNumActiveApps()</pre>
<div class="block">TODO: Based on how frequently this is called, we might want to club
counting pending and active apps in the same method.</div>
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<pre>public&nbsp;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ActiveUsersManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">ActiveUsersManager</a>&nbsp;getAbstractUsersManager()</pre>
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<pre>public&nbsp;boolean&nbsp;canRunAppAM(org.apache.hadoop.yarn.api.records.Resource&nbsp;amResource)</pre>
<div class="block">Check whether this queue can run the Application Master under the
maxAMShare limit.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>amResource</code> - resources required to run the AM</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if this queue can run</dd>
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<pre>public&nbsp;void&nbsp;recoverContainer(org.apache.hadoop.yarn.api.records.Resource&nbsp;clusterResource,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerApplicationAttempt.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerApplicationAttempt</a>&nbsp;schedulerAttempt,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;rmContainer)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/Queue.html#recoverContainer-org.apache.hadoop.yarn.api.records.Resource-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">Queue</a></code></span></div>
<div class="block">Recover the state of the queue for a given container.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>clusterResource</code> - the resource of the cluster</dd>
<dd><code>schedulerAttempt</code> - the application for which the container was allocated</dd>
<dd><code>rmContainer</code> - the container that was recovered.</dd>
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<pre>public&nbsp;void&nbsp;setWeights(float&nbsp;weight)</pre>
<div class="block">Allows setting weight for a dynamically created queue.
Currently only used for reservation based queues.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#setWeights-float-">setWeights</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>weight</code> - queue weight</dd>
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<pre>public&nbsp;org.apache.hadoop.yarn.api.records.Resource&nbsp;getMaximumContainerAllocation()</pre>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#getMaximumContainerAllocation--">getMaximumContainerAllocation</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
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<pre>protected&nbsp;void&nbsp;dumpStateInternal(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;sb)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#dumpStateInternal-java.lang.StringBuilder-">FSQueue</a></code></span></div>
<div class="block">Recursively dump states of all queues.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html#dumpStateInternal-java.lang.StringBuilder-">dumpStateInternal</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSQueue.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSQueue</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sb</code> - the {code StringBuilder} which holds queue states</dd>
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<h4>addAssignedApp</h4>
<pre>public&nbsp;void&nbsp;addAssignedApp(org.apache.hadoop.yarn.api.records.ApplicationId&nbsp;applicationId)</pre>
<div class="block">This method is called when an application is assigned to this queue
for book-keeping purposes (to be able to determine if the queue is empty).</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>applicationId</code> - the application's id</dd>
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<h4>removeAssignedApp</h4>
<pre>public&nbsp;void&nbsp;removeAssignedApp(org.apache.hadoop.yarn.api.records.ApplicationId&nbsp;applicationId)</pre>
<div class="block">This method is called when an application is removed from this queue
during the submit process.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>applicationId</code> - the application's id</dd>
</dl>
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