Files
orca/cloud/apps
Jinwoo Hong 0059d062ea fix(relay): keep a host in its region when the database lane is full and a reserve cell has room (#30974)
* fix(relay): keep a host in its region when the database lane is full and a reserve cell has room

A host that lost the reserve share draw went to the database lane, which
spills to another region when its own region's database cells are full,
even while an in-region reserve cell had free seats. The database lane now
requires the region when an in-region reserve cell has room; if the region
is full it books that reserve cell, and only spills when neither has room.

* fix(relay): pace a throttled in-region reserve cell instead of spilling, and decide reserve room at plan time

With the region's database cells full, a reserve cell with seats but no intake
budget fell through the placer's database-cells shortcut and the host went
abroad. That placement now answers pace (503 with Retry-After). regionReserve
is a single callback, present only while an in-region reserve cell has a seat.

* fix(relay): pace only on a reserve cell that lacked budget, not one that refused

A cell that refused this placement (full, unreachable, seated-newer) got its
token back and drove a 1 s Retry-After forever while the map still showed a
seat. Pacing now skips cells refused for anything but intake, so those
placements fall to the database lane's cross-region fallback as before.
2026-10-20 01:16:26 -04:00
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