Testing optimization on database clusters

Let's talk about optimizations in database clusters and their testing. Sergey will talk about:

• About basic concepts in distributed systems.
• Some stories about how to optimize application settings and do some good (or bad!).
• Some aspects of optimization testing.
• A little bit about requirements, risks, quality assurance, and the price of infrastructure optimization.
• And about the low-hanging fruit.

The talk can be useful for quality assurance specialists, operators, information systems administrators, DevOps engineers and other IT professionals.