MySQL High Availability Without Guesswork
We design MySQL HA topologies that match how your application writes data — so failover is boring, measurable, and rehearsed.
HA Is Not Just “Add a Replica”
A standby that nobody promotes under pressure is not high availability. Neither is a VIP that points at a dead primary while apps keep writing into a black hole. Real MySQL HA needs clear fail detection, a promotion path your team trusts, and application connection behavior that survives the cutover.
Binlogic builds and reviews MySQL HA for US and European production systems — from classic primary/replica with Orchestrator to InnoDB Cluster and Group Replication — and we document what happens when a node disappears at peak traffic.
MySQL HA Patterns We Implement
Primary + Replicas
GTID replication, automated promotion with Orchestrator (or equivalent), and ProxySQL / router layers so apps do not hard-code a single host.
- • Async or semi-sync replication
- • Failover automation
- • Read traffic routing
InnoDB Cluster / GR
Group Replication and MySQL InnoDB Cluster when you need multi-primary or tighter consistency — with honest guidance on when it is (and is not) the right fit.
- • Cluster bootstrap & membership
- • MySQL Router integration
- • Consistency and lag trade-offs
Managed Cloud HA
RDS Multi-AZ and Aurora MySQL can look simple until failover timing, connection storms, or reader endpoints surprise you. We harden what the cloud leaves unfinished.
- • Failover behavior testing
- • Connection pool tuning
- • Cross-AZ / region options
What You Leave With
- A topology recommendation tied to your write patterns and RTO target — not a one-size diagram.
- Failover and rollback runbooks your on-call team can follow without guessing.
- Monitoring signals that catch lag, membership loss, and split-brain risk early.
Looking for Galera instead? MariaDB High Availability (Galera)
Ready to Make MySQL Failover Boring?
Share your current topology and what “acceptable downtime” means for the business. We will propose a concrete HA path — or tell you if a simpler fix is enough.