* [x] https://grafana.wikimedia.org/d/000000106/parser-cache?orgId=1 Cache hit rates and size for:
* [x] ParserCache (latest revision)
* [] ParserCache (stable revision) -- this currently isn't split out in the existing Grafana board, and might be impossible because it's using the same store as the latest ParserCache. Maybe we add logging for cache hit / miss, or not split out for now since we don't expect any impact.
* [x] RevisionOutputCache (older revisions)
* [] Parser load
* Can't find anything! But duplicate parse logs cover the most important part of this.
* [x] Kartotherian load
* https://grafana.wikimedia.org/d/000000305/maps-performances?orgId=1
* https://grafana.wikimedia.org/d/000000030/service-kartotherian?orgId=1&refresh=5m
* Maybe the "init" section of https://grafana.wikimedia.org/d/REqZSe5nk/kartotherian-wip?orgId=1
* [x] Logs: duplicate parses coming from Kartographer
* https://logstash.wikimedia.org/goto/2b8afe93427118362ea5c4f2ac1b7323
* [x] Logs: stable cache miss
* https://logstash.wikimedia.org/goto/c5d2b2d831901c770c14a40d17eb2776
Healthy: no impact on load
Unhealthy: decrease in RevisionOutputCache cache hit rate; increase in parser load; any stable cache miss
We'll want to watch the stable cache long-term.