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<h2 title="Class SkewedRollingTopWords" class="title">Class SkewedRollingTopWords</h2>
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<pre>public class <span class="typeNameLabel">SkewedRollingTopWords</span>
extends <a href="../../../../org/apache/storm/topology/ConfigurableTopology.html" title="class in org.apache.storm.topology">ConfigurableTopology</a></pre>
<div class="block"><p>This topology does a continuous computation of the top N words that the topology has seen in terms of cardinality. The top N computation is done in a completely scalable way, and a similar approach could be used to compute things like trending topics or trending images on Twitter. It takes an approach that assumes that some works will be much more common then other words, and uses partialKeyGrouping to better balance the skewed load.</p></div>
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<code><a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#conf">conf</a></code></li>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/starter/SkewedRollingTopWords.html#main-java.lang.String:A-">main</a></span>(<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>[]&nbsp;args)</code>&nbsp;</td>
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<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/starter/SkewedRollingTopWords.html#run-java.lang.String:A-">run</a></span>(<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>[]&nbsp;args)</code>
<div class="block">Submits (runs) the topology.</div>
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<code><a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#getConf--">getConf</a>, <a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#loadConf-java.lang.String-org.apache.storm.Config-">loadConf</a>, <a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#start-org.apache.storm.topology.ConfigurableTopology-java.lang.String:A-">start</a>, <a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#submit-org.apache.storm.Config-org.apache.storm.topology.TopologyBuilder-">submit</a>, <a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#submit-java.lang.String-org.apache.storm.Config-org.apache.storm.topology.TopologyBuilder-">submit</a></code></li>
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<h4>main</h4>
<pre>public static&nbsp;void&nbsp;main(<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>[]&nbsp;args)
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<h4>run</h4>
<pre>protected&nbsp;int&nbsp;run(<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>[]&nbsp;args)</pre>
<div class="block"><p>Submits (runs) the topology.</p><p><p>Usage: &ldquo;SkewedRollingTopWords [topology-name] [-local]&rdquo;</p><p><p>By default, the topology is run locally under the name &ldquo;slidingWindowCounts&rdquo;.</p><p><p>Examples:</p><p><p><code>
# Runs in remote/cluster mode, with topology name &quot;production-topology&quot;
$ storm jar storm-starter-jar-with-dependencies.jar org.apache.storm.starter.SkewedRollingTopWords production-topology</code></p></div>
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<dd><code><a href="../../../../org/apache/storm/topology/ConfigurableTopology.html#run-java.lang.String:A-">run</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/storm/topology/ConfigurableTopology.html" title="class in org.apache.storm.topology">ConfigurableTopology</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>args</code> - First positional argument (optional) is topology name, second positional argument (optional) defines whether to run the topology locally (&ldquo;-local&rdquo;) or remotely, i.e. on a real cluster</dd>
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