From b2357a898cdd1f4a2222609abfe471801ea88dcd Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 24 Feb 2023 14:39:50 +0000 Subject: Fix bug where 5s delays would occasionally happen. (#15150) This only affects deployments using workers. --- synapse/replication/tcp/resource.py | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'synapse') diff --git a/synapse/replication/tcp/resource.py b/synapse/replication/tcp/resource.py index 9d17eff714..347467d863 100644 --- a/synapse/replication/tcp/resource.py +++ b/synapse/replication/tcp/resource.py @@ -238,6 +238,24 @@ class ReplicationStreamer: except Exception: logger.exception("Failed to replicate") + # The last token we send may not match the current + # token, in which case we want to send out a `POSITION` + # to tell other workers the actual current position. + if updates[-1][0] < current_token: + logger.info( + "Sending position: %s -> %s", + stream.NAME, + current_token, + ) + self.command_handler.send_command( + PositionCommand( + stream.NAME, + self._instance_name, + updates[-1][0], + current_token, + ) + ) + logger.debug("No more pending updates, breaking poke loop") finally: self.pending_updates = False -- cgit 1.4.1