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                <h1 id="faq">
  
  
    <a href="#faq" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> FAQ
  
  
</h1>
    
<h3 id="1-is-lakefs-open-source">
  
  
    <a href="#1-is-lakefs-open-source" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 1. Is lakeFS open-source?
  
  
</h3>
    
<p>lakeFS is completely free, open-source, and licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0</a> License. We maintain a public <a href="https://docs.lakefs.io/understand/roadmap.html">product roadmap</a> and a <a href="https://lakefs.io/slack">Slack channel</a> for open discussions.</p>
<h3 id="2-how-does-lakefs-data-versioning-work">
  
  
    <a href="#2-how-does-lakefs-data-versioning-work" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 2. How does lakeFS data versioning work?
  
  
</h3>
    
<p>lakeFS uses a copy-on-write mechanism to avoid data duplication. For example, creating a new branch is a metadata-only operation: no objects are actually copied. Only when an object changes does lakeFS create another <a href="https://lakefs.io/data-versioning/">version of the data</a> in the storage. For more information, see <a href="/v0.97/understand/how/versioning-internals.html">Versioning internals</a>.</p>
<h3 id="3-how-do-i-get-support-for-my-lakefs-installation">
  
  
    <a href="#3-how-do-i-get-support-for-my-lakefs-installation" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 3. How do I get support for my lakeFS installation?
  
  
</h3>
    
<p>We are extremely responsive on our Slack channel, and we make sure to prioritize the most pressing issues for the community. For SLA-based support, please contact us at <a href="mailto:support@treeverse.io">support@treeverse.io</a>.</p>
<h3 id="4-do-you-collect-data-from-your-active-installations">
  
  
    <a href="#4-do-you-collect-data-from-your-active-installations" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 4. Do you collect data from your active installations?
  
  
</h3>
    
<p>We collect anonymous usage statistics to understand the patterns of use and to detect product gaps we may have so we can fix them. This is optional and may be turned off by setting <code class="language-plaintext highlighter-rouge">stats.enabled</code> to <code class="language-plaintext highlighter-rouge">false</code>. See the <a href="/v0.97/reference/configuration.html#reference">configuration reference</a> for more details.</p>

<p>The data we gather is limited to the following:</p>
<ol>
  <li>A UUID which is generated when setting up lakeFS for the first time and contains no personal or otherwise identifiable information,</li>
  <li>The lakeFS version currently running,</li>
  <li>The OS and architecture lakeFS is running on,</li>
  <li>Metadata regarding the database used (version, installed extensions and parameters such as DB Timezone and work memory),</li>
  <li>Periodic aggregated action counters (e.g. how many “get_object” operations occurred).</li>
</ol>
<h3 id="5-how-is-lakefs-different-from-delta-lake--hudi--iceberg">
  
  
    <a href="#5-how-is-lakefs-different-from-delta-lake--hudi--iceberg" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 5. How is lakeFS different from Delta Lake / Hudi / Iceberg?
  
  
</h3>
    
<p>Delta Lake, Hudi, and Iceberg all define dedicated, structured data formats that allow deletes and upserts. lakeFS is format-agnostic and enables consistent cross-collection versioning of your data using Git-like operations. Read our <a href="https://lakefs.io/hudi-iceberg-and-delta-lake-data-lake-table-formats-compared/">comparison</a> for a more detailed comparison.</p>
<h3 id="6-what-inspired-the-lakefs-logo">
  
  
    <a href="#6-what-inspired-the-lakefs-logo" class="anchor-heading"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> 6. What inspired the lakeFS logo?
  
  
</h3>
    
<p>The <a href="https://en.wikipedia.org/wiki/Axolotl" target="_blank">Axolotl</a> – a species of salamander, also known as the Mexican Lake Monster or the Peter Pan of the animal kingdom. It’s a magical creature, living in a lake - just like us! :)</p>

<p><img src="https://upload.wikimedia.org/wikipedia/commons/f/f6/AxolotlBE.jpg" alt="Axolotl" /></p>

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