See https://www.marc.info/?l=tor-dev&m=145440925917524&w=4 (Don't count this as a commitment to mentor, but we can talk about it.
Custom Alerting Effort Level: Low-Medium Skill Level: Low Likely Mentors: Karsten, Damian
Tor has a lot of services that run in complicated ways. Bandwidth Authorities and Metrics archives are two large examples. While DocTor and DepicTor (consensus-health.torproject.org) provide alerting for certain DirAuth related concerns - these other parts of the Tor Project lack them. Improving the alerting around these systems would give greater confidence in their operation and help resolve problems faster.
Hi Tom, I like the idea of a monitoring project and was already scratching my head wondering if there's something DocTor related a student could do. That said though project ideas need to be more specific and meaty than this. If something comes to mind then let me know!