---
title: "1,000 Servers. 160 Clusters. 30 Days. Zero Downtime: Migrating Wix’s MySQL Fleet to Graviton"
url: https://daily.dev/posts/1-000-servers-160-clusters-30-days-zero-downtime-migrating-wix-s-mysql-fleet-to-graviton-mlsiwgq0w
source_url: https://www.wix.engineering/post/1-000-servers-160-clusters-30-days-zero-downtime-migrating-wix-s-mysql-fleet-to-graviton
type: article
source: "Wix Engineering"
published: 2026-03-23T11:33:40.265Z
updated: 2026-03-23T11:34:07.007Z
tags: ["database", "mysql", "ansible"]
reading_time: 7
upvotes: 10
comments: 0
language: en
---

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# 1,000 Servers. 160 Clusters. 30 Days. Zero Downtime: Migrating Wix’s MySQL Fleet to Graviton

**[Wix Engineering](https://daily.dev/sources/wix_eng)** · 7 min read · 10 upvotes · 0 comments

## Summary

Wix's DB Infrastructure team migrated over 1,000 MySQL servers across 160+ clusters from Intel-based EC2 instances to AWS Graviton CPUs in just one month — three times faster than the planned timeline — with zero downtime. The migration also involved moving from EOL CentOS 7 to Amazon Linux 2023. The team automated the entire process using AWX (Ansible) and Wix's Internal Developer Platform, breaking the workflow into modular building blocks that emulated DBA manual steps. A 'no rollback' policy backed by automated health checks kept momentum high. Results included a ~15% reduction in MySQL compute costs, up to ~50% reduction in CPU utilization, 500 fewer total cores used, and significant reductions in IOPS and disk throughput. Key lessons: avoid over-engineering the design phase, look for optimization opportunities within migration projects, and leverage cross-team collaboration between DBAs, DevOps, and developers.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.wix.engineering/post/1-000-servers-160-clusters-30-days-zero-downtime-migrating-wix-s-mysql-fleet-to-graviton>

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Tags: [#database](https://daily.dev/tags/database), [#mysql](https://daily.dev/tags/mysql), [#ansible](https://daily.dev/tags/ansible)

[View this post on daily.dev](https://daily.dev/posts/1-000-servers-160-clusters-30-days-zero-downtime-migrating-wix-s-mysql-fleet-to-graviton-mlsiwgq0w)