<code>StatsWorker</code> on all nodes.
</p>

<p>
To run this sample, go to the <a href="#run" class="shortcut">Run</a>
tab, and start the application main class <b><code>sample.cluster.stats.StatsSampleMain</code></b>
if it is not already started.
</p>

<p>
<a href="#code/src/main/java/sample/cluster/stats/StatsSampleMain.java" class="shortcut">StatsSampleMain</a> starts
4 actor systems (cluster members) in the same JVM process. It can be more
interesting to run them in separate processes. Stop the applicat