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<div class="subTitle">org.apache.hadoop.yarn.server.resourcemanager.scheduler</div>
<h2 title="Class ContainerUpdateContext" class="title">Class ContainerUpdateContext</h2>
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<pre>public class <span class="typeNameLabel">ContainerUpdateContext</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></pre>
<div class="block">Class encapsulates all outstanding container increase and decrease
requests for an application.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected static org.apache.hadoop.yarn.factories.RecordFactory</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#RECORD_FACTORY">RECORD_FACTORY</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static org.apache.hadoop.yarn.api.records.ContainerId</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#UNDEFINED">UNDEFINED</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#checkAndAddToOutstandingDecreases-org.apache.hadoop.yarn.api.records.UpdateContainerRequest-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode-org.apache.hadoop.yarn.api.records.Container-">checkAndAddToOutstandingDecreases</a></span>(org.apache.hadoop.yarn.api.records.UpdateContainerRequest&nbsp;updateReq,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;schedulerNode,
org.apache.hadoop.yarn.api.records.Container&nbsp;container)</code>
<div class="block">Add the container to outstanding decreases.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#checkAndAddToOutstandingIncreases-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode-org.apache.hadoop.yarn.api.records.UpdateContainerRequest-">checkAndAddToOutstandingIncreases</a></span>(<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,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;schedulerNode,
org.apache.hadoop.yarn.api.records.UpdateContainerRequest&nbsp;updateRequest)</code>
<div class="block">Add the container to outstanding increases.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.yarn.api.records.ContainerId</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#matchContainerToOutstandingIncreaseReq-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode-org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">matchContainerToOutstandingIncreaseReq</a></span>(<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;node,
org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey&nbsp;schedulerKey,
<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">Check if a new container is to be matched up against an outstanding
Container increase request.</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/ContainerUpdateContext.html#removeFromOutstandingUpdate-org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey-org.apache.hadoop.yarn.api.records.Container-">removeFromOutstandingUpdate</a></span>(org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey&nbsp;schedulerKey,
org.apache.hadoop.yarn.api.records.Container&nbsp;container)</code>
<div class="block">Remove Container from outstanding increases / decreases.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/ContainerUpdateContext.html#swapContainer-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.api.records.ContainerUpdateType-">swapContainer</a></span>(<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;tempRMContainer,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;existingRMContainer,
org.apache.hadoop.yarn.api.records.ContainerUpdateType&nbsp;updateType)</code>
<div class="block">Swaps the existing RMContainer's and the temp RMContainers internal
container references after adjusting the resources in each.</div>
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<pre>public static final&nbsp;org.apache.hadoop.yarn.api.records.ContainerId UNDEFINED</pre>
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<pre>protected static final&nbsp;org.apache.hadoop.yarn.factories.RecordFactory RECORD_FACTORY</pre>
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<h4>checkAndAddToOutstandingDecreases</h4>
<pre>public&nbsp;boolean&nbsp;checkAndAddToOutstandingDecreases(org.apache.hadoop.yarn.api.records.UpdateContainerRequest&nbsp;updateReq,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;schedulerNode,
org.apache.hadoop.yarn.api.records.Container&nbsp;container)</pre>
<div class="block">Add the container to outstanding decreases.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>updateReq</code> - UpdateContainerRequest.</dd>
<dd><code>schedulerNode</code> - SchedulerNode.</dd>
<dd><code>container</code> - Container.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>If it was possible to decrease the container.</dd>
</dl>
</li>
</ul>
<a name="checkAndAddToOutstandingIncreases-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode-org.apache.hadoop.yarn.api.records.UpdateContainerRequest-">
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<h4>checkAndAddToOutstandingIncreases</h4>
<pre>public&nbsp;boolean&nbsp;checkAndAddToOutstandingIncreases(<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,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;schedulerNode,
org.apache.hadoop.yarn.api.records.UpdateContainerRequest&nbsp;updateRequest)</pre>
<div class="block">Add the container to outstanding increases.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rmContainer</code> - RMContainer.</dd>
<dd><code>schedulerNode</code> - SchedulerNode.</dd>
<dd><code>updateRequest</code> - UpdateContainerRequest.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if updated to outstanding increases was successful.</dd>
</dl>
</li>
</ul>
<a name="removeFromOutstandingUpdate-org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey-org.apache.hadoop.yarn.api.records.Container-">
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<h4>removeFromOutstandingUpdate</h4>
<pre>public&nbsp;void&nbsp;removeFromOutstandingUpdate(org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey&nbsp;schedulerKey,
org.apache.hadoop.yarn.api.records.Container&nbsp;container)</pre>
<div class="block">Remove Container from outstanding increases / decreases. Calling this
method essentially completes the update process.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schedulerKey</code> - SchedulerRequestKey.</dd>
<dd><code>container</code> - Container.</dd>
</dl>
</li>
</ul>
<a name="matchContainerToOutstandingIncreaseReq-org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode-org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-">
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<h4>matchContainerToOutstandingIncreaseReq</h4>
<pre>public&nbsp;org.apache.hadoop.yarn.api.records.ContainerId&nbsp;matchContainerToOutstandingIncreaseReq(<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/scheduler/SchedulerNode.html" title="class in org.apache.hadoop.yarn.server.resourcemanager.scheduler">SchedulerNode</a>&nbsp;node,
org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey&nbsp;schedulerKey,
<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">Check if a new container is to be matched up against an outstanding
Container increase request.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>node</code> - SchedulerNode.</dd>
<dd><code>schedulerKey</code> - SchedulerRequestKey.</dd>
<dd><code>rmContainer</code> - RMContainer.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>ContainerId.</dd>
</dl>
</li>
</ul>
<a name="swapContainer-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer-org.apache.hadoop.yarn.api.records.ContainerUpdateType-">
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<h4>swapContainer</h4>
<pre>public&nbsp;<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;swapContainer(<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;tempRMContainer,
<a href="../../../../../../../org/apache/hadoop/yarn/server/resourcemanager/rmcontainer/RMContainer.html" title="interface in org.apache.hadoop.yarn.server.resourcemanager.rmcontainer">RMContainer</a>&nbsp;existingRMContainer,
org.apache.hadoop.yarn.api.records.ContainerUpdateType&nbsp;updateType)</pre>
<div class="block">Swaps the existing RMContainer's and the temp RMContainers internal
container references after adjusting the resources in each.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tempRMContainer</code> - Temp RMContainer.</dd>
<dd><code>existingRMContainer</code> - Existing RMContainer.</dd>
<dd><code>updateType</code> - Update Type.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Existing RMContainer after swapping the container references.</dd>
</dl>
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