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puter/src/backend/controllers/broadcast
Daniel Salazar eb8f497e9f feat: presence and cross-region event forwarding (PUT-1679) (#3686)
* feat: presence and cross-region event forwarding (PUT-1679)

* fix: fan cache bumps to sibling nodes and stop the forward shed cascading (PUT-1679)

`outer.events.generationBumped` and `outer.events.presenceBumped` rode
`outer.*`, which the broadcast service only webhooks to peer regions;
only `outer.pubsub.*` also fans over Redis to a region's other nodes.
Both caches are per-process maps with no expiry, so a bump landing on
one node left its siblings stale until that user's next transition.
Renamed onto `outer.pubsub.events.*`; the listeners already accept the
`from_outside` copy the Redis re-emit carries.

`PeerForwardQueue.push` called `onOverflow` synchronously and the
handler pushed markers straight back, each of which re-tripped the
bound and shed the next item: one item over a 5000 bound recursed ~2200
deep, threw a RangeError, and turned ~2200 queued deliveries into gap
markers. It also re-summed `bytes` over the whole queue per drop. The
handler now returns its markers and the queue appends them past the
bound check, sheds deliveries before markers, keeps one pending marker
per (peer, subscription), and subtracts bytes per dropped item.
2026-09-03 15:39:21 -07:00
..