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authorDavid Robertson <davidr@element.io>2022-01-20 13:38:44 +0000
committerGitHub <noreply@github.com>2022-01-20 13:38:44 +0000
commitf160fe18e3cc5604375f491300d12dd5c7e9b9b2 (patch)
tree4027aaff31d9f01313f2311e8cd65d8c3ffeed7c /changelog.d
parentAllow overriding the complement ref. (#11766) (diff)
downloadsynapse-f160fe18e3cc5604375f491300d12dd5c7e9b9b2.tar.xz
Debug for device lists updates (#11760)
Debug for #8631.

I'm having a hard time tracking down what's going wrong in that issue.
In the reported example, I could see server A sending federation traffic
to server B and all was well. Yet B reports out-of-sync device updates
from A.

I couldn't see what was _in_ the events being sent from A to B. So I
have added some crude logging to track

- when we have updates to send to a remote HS
- the edus we actually accumulate to send
- when a federation transaction includes a device list update edu
- when such an EDU is received

This is a bit of a sledgehammer.
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+Add optional debugging to investigate [issue 8631](https://github.com/matrix-org/synapse/issues/8631).
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