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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.heron.spi.scheduler</a></div> |
| <h2 title="Interface IScalable" class="title">Interface IScalable</h2> |
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| <dd><code><a href="../../scheduler/aurora/AuroraScheduler.html" title="class in org.apache.heron.scheduler.aurora">AuroraScheduler</a></code>, <code><a href="../../scheduler/kubernetes/KubernetesController.html" title="class in org.apache.heron.scheduler.kubernetes">KubernetesController</a></code>, <code><a href="../../scheduler/kubernetes/KubernetesScheduler.html" title="class in org.apache.heron.scheduler.kubernetes">KubernetesScheduler</a></code>, <code><a href="../../scheduler/kubernetes/KubernetesShim.html" title="class in org.apache.heron.scheduler.kubernetes">KubernetesShim</a></code>, <code><a href="../../scheduler/local/LocalScheduler.html" title="class in org.apache.heron.scheduler.local">LocalScheduler</a></code>, <code><a href="../../scheduler/yarn/YarnScheduler.html" title="class in org.apache.heron.scheduler.yarn">YarnScheduler</a></code></dd> |
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| <pre><a href="../../classification/InterfaceAudience.LimitedPrivate.html" title="annotation in org.apache.heron.classification">@LimitedPrivate</a> |
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| public interface <span class="typeNameLabel">IScalable</span></pre> |
| <div class="block">Schedulers that implement <code>IScalable</code> support scaling topologies up or down by |
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| <td class="colFirst"><code>java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addContainers(java.util.Set)">addContainers</a></span>​(java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>> containersToAdd)</code></th> |
| <td class="colLast"> |
| <div class="block">Requests new containers for scaling a topology</div> |
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| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#removeContainers(java.util.Set)">removeContainers</a></span>​(java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>> containersToRemove)</code></th> |
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| <div class="block">Requests containers to be released for down-scaling a topology.</div> |
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| <h4>addContainers</h4> |
| <pre class="methodSignature">java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>> addContainers​(java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>> containersToAdd)</pre> |
| <div class="block">Requests new containers for scaling a topology</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>containersToAdd</code> - Set of containers to be added by the scheduler</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Set of added containers with real ids and resources from the scheduler</dd> |
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| <h4>removeContainers</h4> |
| <pre class="methodSignature">void removeContainers​(java.util.Set<<a href="../packing/PackingPlan.ContainerPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan.ContainerPlan</a>> containersToRemove)</pre> |
| <div class="block">Requests containers to be released for down-scaling a topology.</div> |
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| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>containersToRemove</code> - Set of containers to be removed by the scheduler</dd> |
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