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apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-yarn / hadoop-yarn-server / hadoop-yarn-server-resourcemanager / apidocs / org / apache / hadoop / yarn / server / resourcemanager / scheduler / constraint / package-summary.html
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<title>org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint (Apache Hadoop YARN ResourceManager 3.3.1 API)</title>
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<p>@InterfaceAudience.Private
@InterfaceStability.Unstable
</p>
<h1 title="Package" class="title">Package&nbsp;org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint</h1>
<div class="docSummary">
<div class="block">Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement
contains classes related to scheduling containers using placement
constraints.</div>
</div>
<p>See:&nbsp;<a href="#package.description">Description</a></p>
</div>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/Evaluable.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">Evaluable</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A class implements Evaluable interface represents the internal state
of the class can be changed against a given target.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintManager.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">PlacementConstraintManager</a></td>
<td class="colLast">
<div class="block">Interface for storing and retrieving placement constraints (see
<code>PlacementConstraint</code>).</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
<caption><span>Class Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/AllocationTags.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">AllocationTags</a></td>
<td class="colLast">
<div class="block">Allocation tags under same namespace.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/AllocationTagsManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">AllocationTagsManager</a></td>
<td class="colLast">
<div class="block">In-memory mapping between applications/container-tags and nodes/racks.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/AllocationTagsManager.TypeToCountedTags.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">AllocationTagsManager.TypeToCountedTags</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Generic store mapping type T to counted tags.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/MemoryPlacementConstraintManager.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">MemoryPlacementConstraintManager</a></td>
<td class="colLast">
<div class="block">In memory implementation of the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintManagerService.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint"><code>PlacementConstraintManagerService</code></a>.</div>
</td>
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<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintManagerService.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">PlacementConstraintManagerService</a></td>
<td class="colLast">
<div class="block">The service that implements the <a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintManager.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint"><code>PlacementConstraintManager</code></a> interface.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/PlacementConstraintsUtil.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">PlacementConstraintsUtil</a></td>
<td class="colLast">
<div class="block">This class contains various static methods used by the Placement Algorithms
to simplify constrained placement.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplications.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplications</a></td>
<td class="colLast">
<div class="block">This class is used by
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.html#evaluate-org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.TargetApplications-"><code>TargetApplicationsNamespace.evaluate(TargetApplications)</code></a> to evaluate
a namespace.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace</a></td>
<td class="colLast">
<div class="block">Class to describe the namespace of allocation tags, used by
<a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/AllocationTags.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint"><code>AllocationTags</code></a>.</div>
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<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.All.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace.All</a></td>
<td class="colLast">
<div class="block">Namespace to all applications in the cluster.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.AppID.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace.AppID</a></td>
<td class="colLast">
<div class="block">Namespace defined by a certain application ID.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.AppTag.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace.AppTag</a></td>
<td class="colLast">
<div class="block">Namespace to applications that attached with a certain application tag.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.NotSelf.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace.NotSelf</a></td>
<td class="colLast">
<div class="block">Namespace to all applications except itself.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplicationsNamespace.Self.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">TargetApplicationsNamespace.Self</a></td>
<td class="colLast">
<div class="block">Namespace within application itself.</div>
</td>
</tr>
</tbody>
</table>
</li>
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<caption><span>Exception Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Exception</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/InvalidAllocationTagsQueryException.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint">InvalidAllocationTagsQueryException</a></td>
<td class="colLast">
<div class="block">Exception when invalid parameter specified to do placement tags related
queries.</div>
</td>
</tr>
</tbody>
</table>
</li>
</ul>
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<h2 title="Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint Description">Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint Description</h2>
<div class="block">Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement
contains classes related to scheduling containers using placement
constraints.</div>
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