Unconfigurable harsh ratelimiting for leaving rooms #16006
Description
Description
Clients (at least Element) have an option to leave a space and leave all rooms in it.
If you choose to leave all rooms, the client will make leave requests for every room you are on.
If you are on many rooms, this will take a long time, to the point it seems like it hangs. Looking at the network tab in the developer tools shows a lot of 429 Too Many Requests responses.
In conclusion, the defualt ratelimiting for leaving rooms is too harsh. It doesn't seem like it can be overriden either:
https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html has mention of rc_joins but there is no rc_leaves
Steps to reproduce
- join a space on Element on a homeserver using the default rate limits
- join many rooms
- leave the space, choosing to leave all rooms
Homeserver
matrix.mit.edu
Synapse Version
{"server_version":"1.88.0","python_version":"3.10.6"}
Installation Method
Debian packages from packages.matrix.org
Database
PostgreSQL
Workers
Single process
Platform
Ubuntu 22.04.2, PowerEdge R710
Configuration
No response
Relevant log output
N/AAnything else that would be useful to know?
No response