Description: A bespoke memcached micro-cluster for Wikifunctions results, per SRE Service Ops's advice.
Timeline: By end of March 2022.
Diagram: https://commons.wikimedia.org/wiki/File:Wikifunctions_-_Top-level_architectural_model.svg (Red box)
Technologies: Memcached; at first our needs will be small, e.g. each payload will be ~500B, and maybe ~10000 unique calls to perhaps ~1000 functions, so that's perhaps 5 GiB of storage? Load can be adjusted downwards if needed.
WMF services this new service talks to: None
Which services will connect to this service and how:
- Reads and writes from Wikifunctions orchestrator service (T297314)
- Reads from MW app servers (WikiLambda extension); restricted at first to just wikifunctions.org
Will this service use our event platform? No
Does this service talk to an external service? No.
Point person: @Jdforrester-WMF