Introducing MySQL InnoDB Cluster – A Hands-On Tutorial

Traditionally, setting up high availability (HA) in MySQL has been a challenging task, especially for people without advanced knowledge of MySQL. From understanding concepts and technologies, to the tooling, specific commands and files to execute and edit, there’s a lot of things you need to know even when planning a test deployment (the Quick Start Guide for Group Replication should give you an idea).…

MySQL 8.0: Performance Schema Instrumentation of Server Errors

In MySQL 8.0.0, the Performance Schema can now instrument server errors. There are 5 new summary tables introduced:

As names suggest, statistics of errors in these tables are aggregated by error.…