This adds store & forward relays into dendrite for p2p.
A few things have changed:
- new relay api serves new http endpoints for s&f federation
- updated outbound federation queueing which will attempt to forward
using s&f if appropriate
- database entries to track s&f relays for other nodes
Adds wakeup broadcast handling to the pinecone demos.
This will reset their blacklist status and interrupt any ongoing
federation queue backoffs currently in progress for this peer.
The end result is that any queued events will quickly be sent to the
peer if they had disconnected while attempting to send events to them.
This is #2819 but rebased on latest `main`. This PR is against main too
as opposed to the `moderncsqlite` branch.
The main change here is simply:
```go
// add query parameters to the dsn
if strings.Contains(dsn, "?") {
dsn += "&"
} else {
dsn += "?"
}
// wait some time before erroring if the db is locked
// https://gitlab.com/cznic/sqlite/-/issues/106#note_1058094993
dsn += "_pragma=busy_timeout%3d10000"
```
### Pull Request Checklist
<!-- Please read
https://matrix-org.github.io/dendrite/development/contributing before
submitting your pull request -->
* [x] I have added tests for PR _or_ I have justified why this PR
doesn't need tests.
* [x] Pull request includes a [sign off below using a legally
identifiable
name](https://matrix-org.github.io/dendrite/development/contributing#sign-off)
_or_ I have already signed off privately
Signed off privately.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This is a refactor of the federation destination queues.
It fixes a few things, namely:
- actually retry outgoing events with backoff behaviour
- obtain enough events from the database to fill messages as much as
possible
- minimize the amount of running goroutines
- use pure timers for backoff
- don't restart queue unless necessary
- close the background task when backing off
- increase max edus in a transaction to match the spec
- cleanup timers more aggresively to reduce memory usage
- add jitter to backoff timers to reduce resource spikes
- add a bunch of tests (with real and fake databases) to ensure
everything is working
Fixes `outliers whose auth_events are in a different room are correctly
rejected`, by validating that auth events are all from the same room and
not using rejected events for event auth.
This fixes some edge cases where federation queue backoffs and
blacklisting weren't behaving as expected.
It also adds new tests for the federation queues to ensure their
behaviour continues to work correctly.
### Pull Request Checklist
<!-- Please read docs/CONTRIBUTING.md before submitting your pull
request -->
No additional tests have been added as this simply extends the API for
the embedded pinecone demo.
Signed-off-by: `Devon Hudson <devonhudson@librem.one>`
