Mmm it's not only "telemetry data". It's that (e.g. Scuba) and other types of logs, and not only Facebook (e.g. Instagram as well).

Basically, everything that needs logging and post-processing by both real-time systems (e.g. Puma) and batch processing (e.g. all of the data that's ingested and sent to the data warehouse) goes through Scribe.

(disclaimer: I work in Scribe)

Scuba: https://research.fb.com/publications/scuba-diving-into-data-...

Puma: https://research.fb.com/publications/realtime-data-processin...