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<div class="subTitle">org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy</div>
<h2 title="Class FairOrderingPolicy" class="title">Class FairOrderingPolicy&lt;S extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</h2>
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<li><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.AbstractComparatorOrderingPolicy</a>&lt;S&gt;</li>
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<li>org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.FairOrderingPolicy&lt;S&gt;</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;S&gt;</dd>
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<pre>public class <span class="typeNameLabel">FairOrderingPolicy&lt;S extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</span>
extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;S&gt;</pre>
<div class="block">FairOrderingPolicy comparison goes through following steps.
1.Fairness based comparison. SchedulableEntities with lesser usage would be
preferred when compared to another. If sizedBasedWeight is set to true then
an application with high demand may be prioritized ahead of an application
with less usage. This is to offset the tendency to favor small apps, which
could result in starvation for large apps if many small ones enter and leave
the queue continuously (optional, default false)
2. Compare using job submit time. SchedulableEntities submitted earlier would
be preferred than later.
3. Compare demands. SchedulableEntities without resource demand get lower
priority than ones which have demands.</div>
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<td class="colFirst"><code>protected class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.FairComparator.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">FairOrderingPolicy.FairComparator</a></span></code>&nbsp;</td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#ENABLE_SIZE_BASED_WEIGHT">ENABLE_SIZE_BASED_WEIGHT</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a></h3>
<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#comparator">comparator</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#entitiesToReorder">entitiesToReorder</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#schedulableEntities">schedulableEntities</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#FairOrderingPolicy--">FairOrderingPolicy</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/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#configure-java.util.Map-">configure</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;conf)</code>
<div class="block">Provides configuration information for the policy from the scheduler
configuration.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#containerAllocated-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerAllocated</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;r)</code>
<div class="block">Notify the <code>OrderingPolicy</code> that the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a>
has been allocated the given <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a>, enabling the
<code>OrderingPolicy</code> to take appropriate action.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#containerReleased-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerReleased</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;r)</code>
<div class="block">Notify the <code>OrderingPolicy</code> that the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a>
has released the given <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a>, enabling the
<code>OrderingPolicy</code> to take appropriate action.</div>
</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#demandUpdated-S-">demandUpdated</a></span>(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity)</code>
<div class="block">Notify the <code>OrderingPolicy</code> that the demand for the
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> has been updated, enabling the
<code>OrderingPolicy</code> to reorder the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> if needed.</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><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/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#getConfigName--">getConfigName</a></span>()</code>
<div class="block">Return configuration name (which will be used to set ordering policy).</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><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/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#getInfo--">getInfo</a></span>()</code>
<div class="block">Return information regarding configuration and status.</div>
</td>
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<tr id="i6" 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/policy/FairOrderingPolicy.html#getSizeBasedWeight--">getSizeBasedWeight</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/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html#setSizeBasedWeight-boolean-">setSizeBasedWeight</a></span>(boolean&nbsp;sizeBasedWeight)</code>&nbsp;</td>
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<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#addAllSchedulableEntities-java.util.Collection-">addAllSchedulableEntities</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#addSchedulableEntity-S-">addSchedulableEntity</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#entityRequiresReordering-S-">entityRequiresReordering</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getAssignmentIterator-org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.IteratorSelector-">getAssignmentIterator</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getComparator--">getComparator</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getNumSchedulableEntities--">getNumSchedulableEntities</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getPreemptionIterator--">getPreemptionIterator</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getSchedulableEntities--">getSchedulableEntities</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#removeSchedulableEntity-S-">removeSchedulableEntity</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#reorderSchedulableEntity-S-">reorderSchedulableEntity</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#reorderScheduleEntities--">reorderScheduleEntities</a>, <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#updateSchedulingResourceUsage-org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceUsage-">updateSchedulingResourceUsage</a></code></li>
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<h4>ENABLE_SIZE_BASED_WEIGHT</h4>
<pre>public static final&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> ENABLE_SIZE_BASED_WEIGHT</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../../constant-values.html#org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.FairOrderingPolicy.ENABLE_SIZE_BASED_WEIGHT">Constant Field Values</a></dd>
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<h4>FairOrderingPolicy</h4>
<pre>public&nbsp;FairOrderingPolicy()</pre>
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<h4>getSizeBasedWeight</h4>
<pre>public&nbsp;boolean&nbsp;getSizeBasedWeight()</pre>
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<pre>public&nbsp;void&nbsp;setSizeBasedWeight(boolean&nbsp;sizeBasedWeight)</pre>
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<h4>configure</h4>
<pre>public&nbsp;void&nbsp;configure(<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;conf)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#configure-java.util.Map-">OrderingPolicy</a></code></span></div>
<div class="block">Provides configuration information for the policy from the scheduler
configuration.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#configure-java.util.Map-">configure</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#configure-java.util.Map-">configure</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - a map of scheduler configuration properties and values</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;containerAllocated(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;r)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#containerAllocated-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">OrderingPolicy</a></code></span></div>
<div class="block">Notify the <code>OrderingPolicy</code> that the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a>
has been allocated the given <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a>, enabling the
<code>OrderingPolicy</code> to take appropriate action. Depending on the
comparator, a reordering of the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> may be required.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#containerAllocated-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerAllocated</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#containerAllocated-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerAllocated</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schedulableEntity</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a></dd>
<dd><code>r</code> - the allocated <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a></dd>
</dl>
</li>
</ul>
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<h4>containerReleased</h4>
<pre>public&nbsp;void&nbsp;containerReleased(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity,
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;r)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#containerReleased-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">OrderingPolicy</a></code></span></div>
<div class="block">Notify the <code>OrderingPolicy</code> that the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a>
has released the given <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a>, enabling the
<code>OrderingPolicy</code> to take appropriate action. Depending on the
comparator, a reordering of the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> may be required.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#containerReleased-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerReleased</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#containerReleased-S-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">containerReleased</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schedulableEntity</code> - the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a></dd>
<dd><code>r</code> - the released <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer"><code>RMContainer</code></a></dd>
</dl>
</li>
</ul>
<a name="demandUpdated-org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.SchedulableEntity-">
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<h4>demandUpdated</h4>
<pre>public&nbsp;void&nbsp;demandUpdated(<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a>&nbsp;schedulableEntity)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#demandUpdated-S-">OrderingPolicy</a></code></span></div>
<div class="block">Notify the <code>OrderingPolicy</code> that the demand for the
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> has been updated, enabling the
<code>OrderingPolicy</code> to reorder the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a> if needed.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#demandUpdated-S-">demandUpdated</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#demandUpdated-S-">demandUpdated</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schedulableEntity</code> - the updated <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy"><code>SchedulableEntity</code></a></dd>
</dl>
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<h4>getInfo</h4>
<pre>public&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;getInfo()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#getInfo--">OrderingPolicy</a></code></span></div>
<div class="block">Return information regarding configuration and status.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#getInfo--">getInfo</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getInfo--">getInfo</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>configuration and status information</dd>
</dl>
</li>
</ul>
<a name="getConfigName--">
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<h4>getConfigName</h4>
<pre>public&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;getConfigName()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#getConfigName--">OrderingPolicy</a></code></span></div>
<div class="block">Return configuration name (which will be used to set ordering policy).</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html#getConfigName--">getConfigName</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/OrderingPolicy.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">OrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html#getConfigName--">getConfigName</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/AbstractComparatorOrderingPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">AbstractComparatorOrderingPolicy</a>&lt;<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/FairOrderingPolicy.html" title="type parameter in FairOrderingPolicy">S</a> extends <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/policy/SchedulableEntity.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy">SchedulableEntity</a>&gt;</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>configuration name</dd>
</dl>
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