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<!DOCTYPE html>
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<title>Overview - Gearpump 0.8.0 Documentation</title>
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<h1 class="title">Gearpump Overview</h1>
<p>Gearpump is a real-time big data streaming engine.
It is inspired by recent advances in the <a href="http://akka.io/">Akka</a> framework and a desire to improve on existing streaming frameworks.
Gearpump is event/message based and featured as low latency handling, high performance, exactly once semantics,
dynamic topology update, <a href="https://storm.apache.org/">Apache Storm</a> compatibility, etc.</p>
<p>The name Gearpump is a reference to the engineering term “gear pump,” which is a super simple
pump that consists of only two gears, but is very powerful at streaming water.</p>
<p><img src="img/logo2.png" alt="Logo" /></p>
<h3 id="gearpump-technical-highlights">Gearpump Technical Highlights</h3>
<p>Gearpump’s feature set includes:</p>
<ul>
<li>Extremely high performance</li>
<li>Low latency</li>
<li>Configurable message delivery guarantee (at least once, exactly once).</li>
<li>Highly extensible</li>
<li>Dynamic DAG</li>
<li>Storm compatibility</li>
<li>Samoa compatibility</li>
<li>Both high level and low level API</li>
</ul>
<h3 id="gearpump-performance">Gearpump Performance</h3>
<p>Per initial benchmarks we are able to process 18 million messages/second (100 bytes per message) with a 8ms latency on a 4-node cluster.</p>
<p><img src="img/dashboard.png" alt="Dashboard" /></p>
<h3 id="gearpump-and-akka">Gearpump and Akka</h3>
<p>Gearump is a 100% Akka based platform. We model big data streaming within the Akka actor hierarchy.
<img src="img/actor_hierarchy.png" alt="Actor Hierarchy" /></p>
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