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<title>ZooKeeper: Because Coordinating Distributed Systems is a Zoo</title>
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<h1>ZooKeeper: Because Coordinating Distributed Systems is a Zoo</h1>
<div id="front-matter"></div>
<p>ZooKeeper is a high-performance coordination service for
distributed applications. It exposes common services - such as
naming, configuration management, synchronization, and group
services - in a simple interface so you don't have to write them
from scratch. You can use it off-the-shelf to implement
consensus, group management, leader election, and presence
protocols. And you can build on it for your own, specific needs.
</p>
<p>
The following documents describe concepts and procedures to get
you started using ZooKeeper. If you have more questions, please
ask the <a href="http://zookeeper.apache.org/mailing_lists.html">mailing list</a> or browse the
archives.
</p>
<ul>
<li>
<strong>ZooKeeper Overview</strong>
<p>Technical Overview Documents for Client Developers, Adminstrators, and Contributors</p>
<ul>
<li>
<a href="zookeeperOver.html">Overview</a> - a bird's eye view of ZooKeeper, including design concepts and architecture</li>
<li>
<a href="zookeeperStarted.html">Getting Started</a> - a tutorial-style guide for developers to install, run, and program to ZooKeeper</li>
<li>
<a href="releasenotes.html">Release Notes</a> - new developer and user facing features, improvements, and incompatibilities</li>
</ul>
</li>
<li>
<strong>Developers</strong>
<p> Documents for Developers using the ZooKeeper Client API</p>
<ul>
<li>
<a href="api/index.html">API Docs</a> - the technical reference to ZooKeeper Client APIs</li>
<li>
<a href="zookeeperProgrammers.html">Programmer's Guide</a> - a client application developer's guide to ZooKeeper</li>
<li>
<a href="javaExample.html">ZooKeeper Java Example</a> - a simple Zookeeper client appplication, written in Java</li>
<li>
<a href="zookeeperTutorial.html">Barrier and Queue Tutorial</a> - sample implementations of barriers and queues</li>
<li>
<a href="recipes.html">ZooKeeper Recipes</a> - higher level solutions to common problems in distributed applications</li>
</ul>
</li>
<li>
<strong>Administrators & Operators</strong>
<p> Documents for Administrators and Operations Engineers of ZooKeeper Deployments</p>
<ul>
<li>
<a href="zookeeperAdmin.html">Administrator's Guide</a> - a guide for system administrators and anyone else who might deploy ZooKeeper</li>
<li>
<a href="zookeeperQuotas.html">Quota Guide</a> - a guide for system administrators on Quotas in ZooKeeper. </li>
<li>
<a href="zookeeperJMX.html">JMX</a> - how to enable JMX in ZooKeeper</li>
<li>
<a href="zookeeperHierarchicalQuorums.html">Hierarchical quorums</a>
</li>
<li>
<a href="zookeeperObservers.html">Observers</a> - non-voting ensemble members that easily improve ZooKeeper's scalability</li>
</ul>
</li>
<li>
<strong>Contributors</strong>
<p> Documents for Developers Contributing to the ZooKeeper Open Source Project</p>
<ul>
<li>
<a href="zookeeperInternals.html">ZooKeeper Internals</a> - assorted topics on the inner workings of ZooKeeper</li>
</ul>
</li>
<li>
<strong>Miscellaneous ZooKeeper Documentation</strong>
<ul>
<li>
<a href="https://cwiki.apache.org/confluence/display/ZOOKEEPER">Wiki</a>
</li>
<li>
<a href="https://cwiki.apache.org/confluence/display/ZOOKEEPER/FAQ">FAQ</a>
</li>
</ul>
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</ul>
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