Introduction

This is the final installment of a five part blog series to explore InnoDB internals by looking at the related tunable system variables. In this section we’re going to cover variables that relate to enforcing data consistency, and how index statistics are handled and stored.

Just like previous sections, I would like to emphasize something that was written in part one of this blog post series.

“I should note that while tuning recommendations are provided, this objective of this blog post series was NOT meant to be a tuning primer, but instead to explore the mechanics that each variable interacts with. As such I would like to advise against reading this guide and trying to fine tune all of the available InnoDB variables. System variable tuning is an exercise in diminishing returns, the most benefit you’ll get out of tuning your MySQL server will occur within the first 15 minutes of configuration. In …