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| <div class="subTitle">org.apache.storm.scheduler.resource.strategies.eviction</div> |
| <h2 title="Class DefaultEvictionStrategy" class="title">Class DefaultEvictionStrategy</h2> |
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| <li>org.apache.storm.scheduler.resource.strategies.eviction.DefaultEvictionStrategy</li> |
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| <pre>public class <span class="typeNameLabel">DefaultEvictionStrategy</span> |
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| implements <a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html" title="interface in org.apache.storm.scheduler.resource.strategies.eviction">IEvictionStrategy</a></pre> |
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| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/DefaultEvictionStrategy.html#makeSpaceForTopo-org.apache.storm.scheduler.TopologyDetails-">makeSpaceForTopo</a></span>(<a href="../../../../../../../org/apache/storm/scheduler/TopologyDetails.html" title="class in org.apache.storm.scheduler">TopologyDetails</a> td)</code> |
| <div class="block">This method when invoked should attempt to make space on the cluster so that the topology specified can be scheduled</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/resource/strategies/eviction/DefaultEvictionStrategy.html#prepare-org.apache.storm.scheduler.resource.SchedulingState-">prepare</a></span>(<a href="../../../../../../../org/apache/storm/scheduler/resource/SchedulingState.html" title="class in org.apache.storm.scheduler.resource">SchedulingState</a> schedulingState)</code> |
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| <h4>DefaultEvictionStrategy</h4> |
| <pre>public DefaultEvictionStrategy()</pre> |
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| <pre>public void prepare(<a href="../../../../../../../org/apache/storm/scheduler/resource/SchedulingState.html" title="class in org.apache.storm.scheduler.resource">SchedulingState</a> schedulingState)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html#prepare-org.apache.storm.scheduler.resource.SchedulingState-">IEvictionStrategy</a></code></span></div> |
| <div class="block"><p>Initialization</p></div> |
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| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html#prepare-org.apache.storm.scheduler.resource.SchedulingState-">prepare</a></code> in interface <code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html" title="interface in org.apache.storm.scheduler.resource.strategies.eviction">IEvictionStrategy</a></code></dd> |
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| <h4>makeSpaceForTopo</h4> |
| <pre>public boolean makeSpaceForTopo(<a href="../../../../../../../org/apache/storm/scheduler/TopologyDetails.html" title="class in org.apache.storm.scheduler">TopologyDetails</a> td)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html#makeSpaceForTopo-org.apache.storm.scheduler.TopologyDetails-">IEvictionStrategy</a></code></span></div> |
| <div class="block"><p>This method when invoked should attempt to make space on the cluster so that the topology specified can be scheduled</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html#makeSpaceForTopo-org.apache.storm.scheduler.TopologyDetails-">makeSpaceForTopo</a></code> in interface <code><a href="../../../../../../../org/apache/storm/scheduler/resource/strategies/eviction/IEvictionStrategy.html" title="interface in org.apache.storm.scheduler.resource.strategies.eviction">IEvictionStrategy</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>td</code> - the topology to make space for</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>return true to indicate that space has been made for topology and try schedule topology td again. Return false to inidcate that no space could be made for the topology on the cluster and the scheduler should give up trying to schedule the topology for this round of scheduling. This method will be invoked until the topology indicated could be scheduled or the method returns false</dd> |
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