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| <h2 title="Interface IScheduler" class="title">Interface IScheduler</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../org/apache/storm/scheduler/INodeAssignmentSentCallBack.html" title="interface in org.apache.storm.scheduler">INodeAssignmentSentCallBack</a></dd> |
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| <dd><a href="../../../../org/apache/storm/scheduler/blacklist/BlacklistScheduler.html" title="class in org.apache.storm.scheduler.blacklist">BlacklistScheduler</a>, <a href="../../../../org/apache/storm/scheduler/DefaultScheduler.html" title="class in org.apache.storm.scheduler">DefaultScheduler</a>, <a href="../../../../org/apache/storm/scheduler/EvenScheduler.html" title="class in org.apache.storm.scheduler">EvenScheduler</a>, <a href="../../../../org/apache/storm/scheduler/IsolationScheduler.html" title="class in org.apache.storm.scheduler">IsolationScheduler</a>, <a href="../../../../org/apache/storm/scheduler/multitenant/MultitenantScheduler.html" title="class in org.apache.storm.scheduler.multitenant">MultitenantScheduler</a>, <a href="../../../../org/apache/storm/scheduler/resource/ResourceAwareScheduler.html" title="class in org.apache.storm.scheduler.resource">ResourceAwareScheduler</a></dd> |
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| <pre>public interface <span class="typeNameLabel">IScheduler</span> |
| extends <a href="../../../../org/apache/storm/scheduler/INodeAssignmentSentCallBack.html" title="interface in org.apache.storm.scheduler">INodeAssignmentSentCallBack</a></pre> |
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| <td class="colFirst"><code>default void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/scheduler/IScheduler.html#cleanup--">cleanup</a></span>()</code> |
| <div class="block">called once when the system is shutting down, should be idempotent.</div> |
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| <td class="colFirst"><code><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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/scheduler/IScheduler.html#config--">config</a></span>()</code> |
| <div class="block">This function returns the scheduler’s configuration.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/scheduler/IScheduler.html#prepare-java.util.Map-org.apache.storm.metric.StormMetricsRegistry-">prepare</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><<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/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> conf, |
| <a href="../../../../org/apache/storm/metric/StormMetricsRegistry.html" title="class in org.apache.storm.metric">StormMetricsRegistry</a> metricsRegistry)</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/scheduler/IScheduler.html#schedule-org.apache.storm.scheduler.Topologies-org.apache.storm.scheduler.Cluster-">schedule</a></span>(<a href="../../../../org/apache/storm/scheduler/Topologies.html" title="class in org.apache.storm.scheduler">Topologies</a> topologies, |
| <a href="../../../../org/apache/storm/scheduler/Cluster.html" title="class in org.apache.storm.scheduler">Cluster</a> cluster)</code> |
| <div class="block">Set assignments for the topologies which needs scheduling.</div> |
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| <h3>Methods inherited from interface org.apache.storm.scheduler.<a href="../../../../org/apache/storm/scheduler/INodeAssignmentSentCallBack.html" title="interface in org.apache.storm.scheduler">INodeAssignmentSentCallBack</a></h3> |
| <code><a href="../../../../org/apache/storm/scheduler/INodeAssignmentSentCallBack.html#nodeAssignmentSent-java.lang.String-boolean-">nodeAssignmentSent</a></code></li> |
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| <h4>prepare</h4> |
| <pre>void prepare(<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><<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/Object.html?is-external=true" title="class or interface in java.lang">Object</a>> conf, |
| <a href="../../../../org/apache/storm/metric/StormMetricsRegistry.html" title="class in org.apache.storm.metric">StormMetricsRegistry</a> metricsRegistry)</pre> |
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| <h4>schedule</h4> |
| <pre>void schedule(<a href="../../../../org/apache/storm/scheduler/Topologies.html" title="class in org.apache.storm.scheduler">Topologies</a> topologies, |
| <a href="../../../../org/apache/storm/scheduler/Cluster.html" title="class in org.apache.storm.scheduler">Cluster</a> cluster)</pre> |
| <div class="block"><p>Set assignments for the topologies which needs scheduling. The new assignments is available through <code>cluster.getAssignments()</code></p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>topologies</code> - all the topologies in the cluster, some of them need schedule. Topologies object here only contain static information about topologies. Information like assignments, slots are all in the <code>cluster</code> object.</dd> |
| <dd><code>cluster</code> - the cluster these topologies are running in. <code>cluster</code> contains everything user need to develop a new scheduling logic. e.g. supervisors information, available slots, current assignments for all the topologies etc. User can set the new assignment for topologies using cluster.setAssignmentById()`</dd> |
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| <h4>config</h4> |
| <pre><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> config()</pre> |
| <div class="block"><p>This function returns the scheduler’s configuration.</p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The scheduler’s configuration.</dd> |
| </dl> |
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| <h4>cleanup</h4> |
| <pre>default void cleanup()</pre> |
| <div class="block"><p>called once when the system is shutting down, should be idempotent.</p></div> |
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