--- title: "#zero-downtime articles | Hashnode" description: "Explore 35 articles tagged #zero-downtime on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/zero-downtime" --- Tag # #zero-downtime 35 posts · 1 followers [Usman Khan](https://hashnode.com/@usmankhan-io) · [Oct 6](https://hashnode.com/posts/zero-downtime-database-migrations-shadow-tables-dual-write/6ac52144b8d5686318bc33b3) ### [Zero-Downtime Database Migrations: Shadow Tables, Dual-Writing, and Schema Expansion](https://ctousman.hashnode.dev/zero-downtime-database-migrations-shadow-tables-dual-write?utm_source=hashnode&utm_medium=feed) Shadow tables, dual-writes, and expand-contract schema changes without maintenance windows 5 min read · [ctousman.hashnode.dev](https://ctousman.hashnode.dev/zero-downtime-database-migrations-shadow-tables-dual-write?utm_source=hashnode&utm_medium=feed) [Michael](https://hashnode.com/@mmuehlbeyer) · [Jun 23](https://hashnode.com/posts/how-to-install-oracle-zero-downtime-migration-zdm/6a3a8131804df3e6eb10dc3e) ### [How to install Oracle Zero Downtime Migration (ZDM)](https://mmuehlbeyer.hashnode.dev/how-to-install-oracle-zero-downtime-migration-zdm?utm_source=hashnode&utm_medium=feed) Oracle Zero Downtime Migration (ZDM) is a free to use software which allows you to automate your database migrations to OCI, multicloud and onprem systems some Prerequisites It's highly recommended to 4 min read · [mmuehlbeyer.hashnode.dev](https://mmuehlbeyer.hashnode.dev/how-to-install-oracle-zero-downtime-migration-zdm?utm_source=hashnode&utm_medium=feed) [binadit](https://hashnode.com/@binadit) · [May 7](https://hashnode.com/posts/how-to-migrate-woocommerce-without-losing-revenue/69fc3a7ef149e8d6d5148380) ### [How to migrate WooCommerce without losing revenue](https://binadit.hashnode.dev/how-to-migrate-woocommerce-without-losing-revenue?utm_source=hashnode&utm_medium=feed) Migrating WooCommerce infrastructure without revenue interruption Migrating an active e-commerce platform presents a unique challenge: maintaining business continuity while transitioning critical infrastructure. Unlike static websites, WooCommerce st... 6 min read · [binadit.hashnode.dev](https://binadit.hashnode.dev/how-to-migrate-woocommerce-without-losing-revenue?utm_source=hashnode&utm_medium=feed) [Deploynix](https://hashnode.com/@deploynix) · [Apr 13](https://hashnode.com/posts/the-anatomy-of-a-zero-downtime-deploy-what-happens-in-those-15-seconds/69dd7b9809c4778ecf688709) ### [The Anatomy of a Zero-Downtime Deploy: What Happens in Those 15 Seconds](https://deploynix.hashnode.dev/the-anatomy-of-a-zero-downtime-deploy-what-happens-in-those-15-seconds?utm_source=hashnode&utm_medium=feed) You push to your Git repository, Deploynix picks up the change, and 15 seconds later your users are on the new version of your application. No maintenance page. No dropped requests. No error responses during the transition. Zero downtime. But how? Ho... 10 min read · [deploynix.hashnode.dev](https://deploynix.hashnode.dev/the-anatomy-of-a-zero-downtime-deploy-what-happens-in-those-15-seconds?utm_source=hashnode&utm_medium=feed) [Deploynix](https://hashnode.com/@deploynix) · [Apr 5](https://hashnode.com/posts/what-is-zero-downtime-deployment-and-why-does-your-laravel-app-need-it/69d2bda0b6a62a5b4929777f) ### [What Is Zero-Downtime Deployment and Why Does Your Laravel App Need It?](https://deploynix.hashnode.dev/what-is-zero-downtime-deployment-and-why-does-your-laravel-app-need-it?utm_source=hashnode&utm_medium=feed) Picture this: you have a bug fix ready. Your users are active — it is mid-afternoon, peak traffic. You push the code, your deployment script runs, and for 15-30 seconds, your application shows a maintenance page. Or worse, it shows an error page beca... 10 min read · [deploynix.hashnode.dev](https://deploynix.hashnode.dev/what-is-zero-downtime-deployment-and-why-does-your-laravel-app-need-it?utm_source=hashnode&utm_medium=feed) [Deploynix](https://hashnode.com/@deploynix) · [Apr 3](https://hashnode.com/posts/how-to-roll-back-a-failed-deployment-in-30-seconds/69cfe98d3804edbe597af408) ### [How to Roll Back a Failed Deployment in 30 Seconds](https://deploynix.hashnode.dev/how-to-roll-back-a-failed-deployment-in-30-seconds?utm_source=hashnode&utm_medium=feed) It is 4:47 PM on a Friday. You merged a pull request, the CI pipeline passed, and the deployment to production completed without errors. But then the Slack messages start: "Is the app down?" "I'm getting a 500 error." "The checkout page is broken." Y... 9 min read · [deploynix.hashnode.dev](https://deploynix.hashnode.dev/how-to-roll-back-a-failed-deployment-in-30-seconds?utm_source=hashnode&utm_medium=feed) [Deploynix](https://hashnode.com/@deploynix) · [Mar 27](https://hashnode.com/posts/zero-downtime-laravel-deployment-how-it-actually-works/69c6cf315af2bcced1caec43) ### [Zero-Downtime Laravel Deployment: How It Actually Works](https://deploynix.hashnode.dev/zero-downtime-laravel-deployment-how-it-actually-works?utm_source=hashnode&utm_medium=feed) Every deployment is a risk. For a brief moment, your application is in transition — old code is being replaced with new code, caches are being cleared, services are being restarted. In a traditional deployment, that transition window means your users... 10 min read · [deploynix.hashnode.dev](https://deploynix.hashnode.dev/zero-downtime-laravel-deployment-how-it-actually-works?utm_source=hashnode&utm_medium=feed) [tarun](https://hashnode.com/@tarungampa) · [Feb 26](https://hashnode.com/posts/prevent-kubernetes-downtime-during-maintenance-use-pod-disruption-budgets-pdbs/699fa9320e6688c072535110) ### [Prevent Kubernetes Downtime During Maintenance: Use Pod Disruption Budgets (PDBs)](https://tarungampa.hashnode.dev/prevent-kubernetes-downtime-during-maintenance-use-pod-disruption-budgets-pdbs?utm_source=hashnode&utm_medium=feed) You're doing a cluster upgrade. Or maybe someone drained a node for maintenance. Either way, your app goes down — even though you had replicas running. If this sounds familiar, the missing piece is al 3 min read · [tarungampa.hashnode.dev](https://tarungampa.hashnode.dev/prevent-kubernetes-downtime-during-maintenance-use-pod-disruption-budgets-pdbs?utm_source=hashnode&utm_medium=feed) [Tech Insights Hub](https://hashnode.com/@JohnMikes) · [Feb 13](https://hashnode.com/posts/database-migration-strategy-zero-downtime-schema-changes/698efebda0f7e20edcec5892) ### [Database Migration Strategy: Zero-Downtime Schema Changes](https://topperblog.hashnode.dev/database-migration-strategy-zero-downtime-schema-changes?utm_source=hashnode&utm_medium=feed) Blue-green deployments and backward-compatible migrations 7 min read · [topperblog.hashnode.dev](https://topperblog.hashnode.dev/database-migration-strategy-zero-downtime-schema-changes?utm_source=hashnode&utm_medium=feed) [Tech Insights Hub](https://hashnode.com/@JohnMikes) · [Feb 12](https://hashnode.com/posts/database-migration-zero-downtime-strategy/698e3d7c6a4bc5faf3cdc290) ### [Database Migration: Zero Downtime Strategy](https://topperblog.hashnode.dev/database-migration-zero-downtime-strategy?utm_source=hashnode&utm_medium=feed) Zero Downtime Database Migration: Strategy Guide for Production Systems Zero downtime database migration remains one of the most challenging operational tasks in modern software engineering. When your application serves millions of requests daily, ev... 10 min read · [topperblog.hashnode.dev](https://topperblog.hashnode.dev/database-migration-zero-downtime-strategy?utm_source=hashnode&utm_medium=feed)