Improve runbook on patroni replication lag
Why?
Action item from FCL for incident 8619.
Improve patroni runbook about replication lag
Related threads:
Proposal
- Add more information about what to do when there's a significant increase in writes.
- Document that replicas dropping out of the pool puts increased read load on the primary.
Definition of Done
- MR to add more detail on replication lag is merged.
Edited by Albert