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<div class="subTitle">org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies</div>
<h2 title="Class DominantResourceFairnessPolicy.DominantResourceFairnessComparator" class="title">Class DominantResourceFairnessPolicy.DominantResourceFairnessComparator</h2>
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<dd><a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/DominantResourceFairnessPolicy.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies">DominantResourceFairnessPolicy</a></dd>
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<pre>public abstract static class <span class="typeNameLabel">DominantResourceFairnessPolicy.DominantResourceFairnessComparator</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a>&lt;<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>&gt;</pre>
<div class="block">This class compares two <a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/Schedulable.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair"><code>Schedulable</code></a> instances according to the
DRF policy. If neither instance is below min share, approximate fair share
ratios are compared. Subclasses of this class will do the actual work of
the comparison, specialized for the number of configured resource types.</div>
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<td class="colFirst"><code>protected <a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSContext.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/DominantResourceFairnessPolicy.DominantResourceFairnessComparator.html#fsContext">fsContext</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/DominantResourceFairnessPolicy.DominantResourceFairnessComparator.html#DominantResourceFairnessComparator--">DominantResourceFairnessComparator</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/DominantResourceFairnessPolicy.DominantResourceFairnessComparator.html#compareAttribrutes-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.Schedulable-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.Schedulable-">compareAttribrutes</a></span>(<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>&nbsp;s1,
<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>&nbsp;s2)</code>
<div class="block">This method is used when apps are tied in fairness ratio.</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/fair/policies/DominantResourceFairnessPolicy.DominantResourceFairnessComparator.html#setFSContext-org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSContext-">setFSContext</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSContext.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSContext</a>&nbsp;fsContext)</code>&nbsp;</td>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;java.util.<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#compare-T-T-" title="class or interface in java.util">compare</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#comparing-java.util.function.Function-" title="class or interface in java.util">comparing</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#comparing-java.util.function.Function-java.util.Comparator-" title="class or interface in java.util">comparing</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#comparingDouble-java.util.function.ToDoubleFunction-" title="class or interface in java.util">comparingDouble</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#comparingInt-java.util.function.ToIntFunction-" title="class or interface in java.util">comparingInt</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#comparingLong-java.util.function.ToLongFunction-" title="class or interface in java.util">comparingLong</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.util">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#naturalOrder--" title="class or interface in java.util">naturalOrder</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#nullsFirst-java.util.Comparator-" title="class or interface in java.util">nullsFirst</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#nullsLast-java.util.Comparator-" title="class or interface in java.util">nullsLast</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#reversed--" title="class or interface in java.util">reversed</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#reverseOrder--" title="class or interface in java.util">reverseOrder</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparing-java.util.Comparator-" title="class or interface in java.util">thenComparing</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparing-java.util.function.Function-" title="class or interface in java.util">thenComparing</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparing-java.util.function.Function-java.util.Comparator-" title="class or interface in java.util">thenComparing</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparingDouble-java.util.function.ToDoubleFunction-" title="class or interface in java.util">thenComparingDouble</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparingInt-java.util.function.ToIntFunction-" title="class or interface in java.util">thenComparingInt</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true#thenComparingLong-java.util.function.ToLongFunction-" title="class or interface in java.util">thenComparingLong</a></code></li>
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<h4>fsContext</h4>
<pre>protected&nbsp;<a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSContext.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSContext</a> fsContext</pre>
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<h4>DominantResourceFairnessComparator</h4>
<pre>public&nbsp;DominantResourceFairnessComparator()</pre>
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<h4>setFSContext</h4>
<pre>public&nbsp;void&nbsp;setFSContext(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSContext.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair">FSContext</a>&nbsp;fsContext)</pre>
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<pre>protected&nbsp;int&nbsp;compareAttribrutes(<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>&nbsp;s1,
<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>&nbsp;s2)</pre>
<div class="block">This method is used when apps are tied in fairness ratio. It breaks
the tie by submit time and job name to get a deterministic ordering,
which is useful for unit tests.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>s1</code> - the first item to compare</dd>
<dd><code>s2</code> - the second item to compare</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>&lt; 0, 0, or &gt; 0 if the first item is less than, equal to,
or greater than the second item, respectively</dd>
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