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Fix not sending events over federation when using sharded event persisters (#8536)

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* Fix outbound federaion with multiple event persisters.

We incorrectly notified federation senders that the minimum persisted
stream position had advanced when we got an `RDATA` from an event
persister.

Notifying of federation senders already correctly happens in the
notifier, so we just delete the offending line.

* Change some interfaces to use RoomStreamToken.

By enforcing use of `RoomStreamTokens` we make it less likely that
people pass in random ints that they got from somewhere random.
This commit is contained in:
Erik Johnston 2020-10-14 13:27:51 +01:00 • committed by GitHub
parent 3ee97a2748
commit 921a3f8a59
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10 changed files with 51 additions and 21 deletions
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8
synapse/push/emailpusher.py
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@ -18,6 +18,7 @@ import logging
from twisted.internet.error import AlreadyCalled, AlreadyCancelled
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import RoomStreamToken
logger = logging.getLogger(__name__)
@ -91,7 +92,12 @@ class EmailPusher:
pass
self.timed_call = None
def on_new_notifications(self, max_stream_ordering):
def on_new_notifications(self, max_token: RoomStreamToken):
# We just use the minimum stream ordering and ignore the vector clock
# component. This is safe to do as long as we *always* ignore the vector
# clock components.
max_stream_ordering = max_token.stream
if self.max_stream_ordering:
self.max_stream_ordering = max(
max_stream_ordering, self.max_stream_ordering