# Active-Active MySQL Group Replication Best Practices

DevFeed: [Active-Active MySQL Group Replication Best Practices](<https://devfeed.tech/articles/active-active-mysql-group-replication-best-practices-19106.md>)

Original publisher: [Read original article](<https://severalnines.com/blog/active-active-mysql-group-replication-best-practices/>)

Author: Paul Namuag

Published: 2026-03-11T12:54:52Z

Content type: tutorial

Language: en

Sources: [SeveralNines](<https://devfeed.tech/sources/severalnines.md>)

Topics: [MySQL](<https://devfeed.tech/topics/mysql.md>), [Replication](<https://devfeed.tech/topics/replication.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [Transactions](<https://devfeed.tech/topics/transactions.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [best-practices](<https://devfeed.tech/tags/best-practices.md>), [consensus](<https://devfeed.tech/tags/consensus.md>), [consistency](<https://devfeed.tech/tags/consistency.md>), [deployment-scaling](<https://devfeed.tech/tags/deployment-scaling.md>), [high-availability](<https://devfeed.tech/tags/high-availability.md>), [mgr](<https://devfeed.tech/tags/mgr.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [mysql-group-replication](<https://devfeed.tech/tags/mysql-group-replication.md>), [replication](<https://devfeed.tech/tags/replication.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [transactions](<https://devfeed.tech/tags/transactions.md>)

## AI overview

This article explains active-active MySQL Group Replication, where multiple primary members accept concurrent writes that are synchronously replicated and coordinated through consensus and write-set certification. It discusses scalability limits, transaction conflicts, rollback surges, and operational considerations for production deployments.

## Source excerpt

In MySQL Group Replication (MGR) or Group Replication, an active-active configuration allows multiple group members to accept concurrent write transactions. These writes are coordinated through a consensus-based group communication system (GCS) and validated via write-set certification to preserve global transactional consistency as defined by the Group Replication protocol. active-active mode is designed for write scalability. [...] The post Active-Active MySQL Group Replication Best Practices appeared first on Severalnines.