Large Scale NoSQL Database Migration Under Fire

The following post describes how we migrated a large NoSql database from one vendor to another in production without any downtime or data loss. The following methodology has worked for us and has been proven to be safe and simple. I am sure that there are several techniques for migrating NoSql databases, but here are some guidelines for doing so with minimal risk, while maintaining the ability to rollback at almost any point in the process.

This post is based on a talk I gave at DevopsDays in Nov 2017.

Source: medium.com