Tag - keepalived

Setup ProxySQL for High Availability (not a Single Point of Failure)

ProxySQL for High Availability

In this blog post, we’ll look at how to set up ProxySQL for high availability.
During the last few months, we’ve had a lot of opportunities to present and discuss a very powerful tool that will become more and more used in the architectures supporting MySQL: ProxySQL.
ProxySQL is becoming more flexible, solid, performant and used every […]

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keepalived with reader and writer VIPs for Percona XtraDB Cluster

This is a followup to Using keepalived for HA on top of Percona XtraDB Cluster.” We got a request recently where the customer has 2 VIPs (Virtual IP addresses), one for reader and one for a writer for a cluster of 3 nodes. They wanted to keep it simple, with low latency and does […]

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Using keepalived for HA on top of Percona XtraDB Cluster

Percona XtraDB Cluster (PXC) itself manages quorum and node failure.  Minorities of nodes in a network partition situation will move themselves into a Non-primary state and not allow any DB activity.  Nodes in such a state will be easily detectable via SHOW GLOBAL STATUS variables.
It’s common to use HAproxy with PXC for load balancing purposes, but […]

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