---
layout: doclandingpage
title: "Documentation"
is_homepage: false
is_sphinx_doc: false
---

  <h2>Apache Cassandra Documentation v3.11.9</h2>
  
<div id="wipwarning">This documentation is currently a work-in-progress and contains a number of TODO sections.
    <a href="bugs.html">Contributions</a> are welcome.</div>

<h3>Main documentation</h3>

<table class="contentstable doc-landing-table" align="center">
  <tr>
    <td class="left-column">
      <p class="biglink"><a class="biglink" href="getting_started/index.html">Getting started</a><br/>
      <span class="linkdescr">Newbie friendly starting point</span></p>
    </td>
    <td class="right-column">
      <p class="biglink"><a class="biglink" href="operating/index.html">Operating Cassandra</a><br/>
      <span class="linkdescr">The operator's corner</span></p>
    </td>
  </tr>
  <tr>
    <td class="left-column">
      <p class="biglink"><a class="biglink" href="architecture/index.html">Cassandra Architecture</a><br/>
      <span class="linkdescr">Cassandra's big picture</span></p>
    </td>
    <td class="right-column">
      <p class="biglink"><a class="biglink" href="tools/index.html">Cassandra's Tools</a><br/>
      <span class="linkdescr">cqlsh, nodetool, ...</span></p>
    </td>
  </tr>
  <tr>
    <td class="left-column">
      <p class="biglink"><a class="biglink" href="data_modeling/index.html">Data Modeling</a><br/>
      <span class="linkdescr">Or how to make square pegs fit round holes</span></p>
    </td>
    <td class="right-column">
      <p class="biglink"><a class="biglink" href="troubleshooting/index.html">Troubleshooting</a><br/>
      <span class="linkdescr">What to look for when you have a problem</span></p>
    </td>
  </tr>
  <tr>
    <td class="left-column">
      <p class="biglink"><a class="biglink" href="cql/index.html">Cassandra Query Language</a><br/>
      <span class="linkdescr">CQL reference documentation</span></p>
    </td>
    <td class="right-column">
      <p class="biglink"><a class="biglink" href="development/index.html">Cassandra Development</a><br/>
      <span class="linkdescr">Learn how to improve Cassandra and contribute patches</span></p>
    </td>
  </tr>
  <tr>
    <td class="left-column">
      <p class="biglink"><a class="biglink" href="faq/index.html">FAQs</a><br/>
      <span class="linkdescr">Frequently Asked Questions (with answers!)</span></p>
    </td>
    <td class="right-column">
      <p class="biglink"><a class="biglink" href="configuration/index.html">Configuration</a><br/>
      <span class="linkdescr">Cassandra's handles and knobs</span></p>
    </td>
  </tr>
</table>

<h3>Meta informations</h3>

<ul>
  <li><a class="biglink" href="bugs.html">Reporting bugs</a></li>
  <li><a class="biglink" href="contactus.html">Contact us</a></li>
</ul>