Richard van der Hoff
Richard van der Hoff
I think this is still waiting for people to enable the debug logging and report their findings. @DMRobertson is that correct?
I've now enabled the additional logging on `matrix.org`, so if any users on there observe this problem, please let us know so we can investigate.
Per #13518: this manifests in thousands of requests to `/_synapse/replication/user_device_resync` on the main process, which are handled by `ReplicationUserDevicesResyncRestServlet`.
> I'm in favor of updating the page Dirk mentioned: https://github.com/matrix-org/synapse/blob/develop/docs/message_retention_policies.md That page does mention that this is an experimental option, but yes it might also be worth strengthening the...
I'm going to close this for now as it's bitrotting and not making any progress. We can reopen once we want to resume work on it.
yeah I think this is closely related to #8625: it boils down to the fact that `createRoom` is not atomic, and exceptions (for any reason) in the middle of it...
Per #13427: the same happens if you hit the rate-limiter.
> @richvdh Can [workers](https://github.com/matrix-org/synapse/blob/develop/docs/workers.md) help solve this problem? No, if anything they are likely to exacerbate the problem as it increases the chances of a failure creating one of the...
maybe this is happening more frequently now? Also seen at https://github.com/matrix-org/synapse/runs/7783161292?check_suite_focus=true (on a monolith)
keyword: `TestMembersLocal/Parallel/Existing_members_see_new_members'_presence`