Percona Live Online

Recently, PMM replaced Prometheus with VictoriaMetrics. In the talk we want to cover the motivation behind this transition, the architecture and internals of PMM and technical details of the replacement.
The talk is going to be held by members of both organizations who took a part in migration: Percona and VictoriaMetrics. We expect the talk to be divided into the following parts:
1. The evolution path of PMM and decision to replace Prometheus (by Percona members)
2. PMM architecture and technical details of the transition to VM (by VM members)
3. The summary and results of collaboration

Some key slide titles from the talk:
1. Architecture of PMM
2. Why we decided to replace Prometheus
3. Transition period - what to do with historical data
4. Mutually beneficial collaboration for PMM and VM

The talk will also include the following observability topics:
1. Push vs Pull metrics collection approaches
2. Efficiency of monitoring systems