Slow first connect after reopening app

[nisbet-hubbard]

Steps to reproduce

Closing and reopening app without using VPN

Outcome

What did you expect?

Syncing appears briefly

What happened instead?

Stuck at Syncing for 8 minutes. Potentially related to #3316.

Your phone model

No response

Operating system version

No response

Application version

1.9.1

Homeserver

conduwuit

Will you send logs?

Yes

[pixlwave]

Heads up that #3316 has zero effect when a user is already logged in.

[nisbet-hubbard]

You're absolutely right.

I mentioned it only because the kind of behaviour I'm observing (fast connect within hours, long wait when connecting after a day or so) seems to suggest Element is making a similar blocked request each time it connects to the homeserver after a long hiatus.

[pixlwave]

Looking at your logs, they're filled with TimedOut errors on /_matrix/client/unstable/org.matrix.msc3575/sync and other endpoints like /_matrix/client/v3/room_keys/keys/…, /_matrix/client/v3/keys/query etc. Closing this as a backend issue.

[nisbet-hubbard]

Glad the issue lies elsewhere. How should I go about debugging this?

Since /org.matrix.msc3575/ is involved here, would it be a good idea to just wait for conduwuit to implement the new sliding sync? Or should I report the issue now?

[pixlwave]

There's a chance this is in some way related to #3478