Advent of Code 2022 – Day 4

I’m trying to solve all the Advent of Code puzzles in this video series.

We look into writing a custom log4j appender in java and how to send you to log messages with an appender to RabbitMQ. Writing a custom appender is challenging due to performance considerations.

In this video, we look into installing Placement and Nova services. The Placement service is used to gather statistics about your cluster and figure out where to put instances. Nova is the controller and compute nodes that will do the actual work.

We use Munin to monitor servers with different resources and critical operations. Munin will contact each server and ask for statistics and monitor if a service is running and have enough resources to work.

Looking into the configuration file and talk about what the different parameters mean