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itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Installation and Configuration</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Additional Networking Settings</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h2 class="anchor anchorWithStickyNavbar_LWe7" id="additional-networking-settings">Additional Networking Settings<a href="#additional-networking-settings" class="hash-link" aria-label="Direct link to Additional Networking Settings" title="Direct link to Additional Networking Settings"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="cors">CORS<a href="#cors" class="hash-link" aria-label="Direct link to CORS" title="Direct link to CORS"></a></h3><p>To configure CORS, or cross-origin resource sharing, the following dependency must be installed:</p><div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">pip install apache</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">superset</span><span class="token punctuation" style="color:#393A34">[</span><span class="token plain">cors</span><span class="token punctuation" style="color:#393A34">]</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>The following keys in <code>superset_config.py</code> can be specified to configure CORS:</p><ul><li><code>ENABLE_CORS</code>: Must be set to <code>True</code> in order to enable CORS</li><li><code>CORS_OPTIONS</code>: options passed to Flask-CORS |
| (<a href="https://flask-cors.corydolphin.com/en/latest/api.html#extension" target="_blank" rel="noopener noreferrer">documentation</a>)</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="domain-sharding">Domain Sharding<a href="#domain-sharding" class="hash-link" aria-label="Direct link to Domain Sharding" title="Direct link to Domain Sharding"></a></h3><p>Chrome allows up to 6 open connections per domain at a time. When there are more than 6 slices in |
| dashboard, a lot of time fetch requests are queued up and wait for next available socket. |
| <a href="https://github.com/apache/superset/pull/5039" target="_blank" rel="noopener noreferrer">PR 5039</a> adds domain sharding to Superset, |
| and this feature will be enabled by configuration only (by default Superset doesn’t allow |
| cross-domain request).</p><p>Add the following setting in your <code>superset_config.py</code> file:</p><ul><li><code>SUPERSET_WEBSERVER_DOMAINS</code>: list of allowed hostnames for domain sharding feature.</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="middleware">Middleware<a href="#middleware" class="hash-link" aria-label="Direct link to Middleware" title="Direct link to Middleware"></a></h3><p>Superset allows you to add your own middleware. To add your own middleware, update the |
| <code>ADDITIONAL_MIDDLEWARE</code> key in your <code>superset_config.py</code>. <code>ADDITIONAL_MIDDLEWARE</code> should be a list |
| of your additional middleware classes.</p><p>For example, to use <code>AUTH_REMOTE_USER</code> from behind a proxy server like nginx, you have to add a |
| simple middleware class to add the value of <code>HTTP_X_PROXY_REMOTE_USER</code> (or any other custom header |
| from the proxy) to Gunicorn’s <code>REMOTE_USER</code> environment variable:</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/superset/tree/master/docs/docs/installation/networking-settings.mdx" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/installation/configuring-superset"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Configuring Superset</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/installation/cache"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Caching</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#additional-networking-settings" class="table-of-contents__link toc-highlight">Additional Networking Settings</a><ul><li><a href="#cors" class="table-of-contents__link toc-highlight">CORS</a></li><li><a href="#domain-sharding" class="table-of-contents__link toc-highlight">Domain Sharding</a></li><li><a href="#middleware" class="table-of-contents__link toc-highlight">Middleware</a></li></ul></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2023, |
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