https://foojayio.github.io/website/today/author/shrey-batra/Articles written by Shrey Batra on foojay.io - Friends of OpenJDKHugoen-usTue, 26 Aug 2025 15:14:03 +0000https://foojayio.github.io/website/today/what-happens-when-a-primary-fails-in-a-mongodb-replica-set-automatic-failovers/Tue, 26 Aug 2025 15:14:03 +0000https://foojayio.github.io/website/today/what-happens-when-a-primary-fails-in-a-mongodb-replica-set-automatic-failovers/<p>In distributed systems, high availability is not a luxury&mdash;it&rsquo;s a necessity. And one of the very important parts of that is automatic failovers. What are automatic failovers and how do they work? Let&rsquo;s see today!</p> <p>These concepts are actually similar in every database, but as <a href="https://www.mongodb.com/cloud/atlas/register/?utm_campaign=devrel&amp;utm_source=third-party-content&amp;utm_medium=cta&amp;utm_content=shrey-foojay&amp;utm_term=tony.kim" target="_blank" rel="noopener noreferrer">MongoDB</a> is natively built for replica-sets, we will talk about that here, whereas other DB systems need 3rd-party or managed systems to implement the same.</p>