ReferenceGlossary
Backpressure
A signal from a slow consumer that tells producers to slow down or stop, so a buffer or queue does not grow without limit. Without it, a backlog grows until memory or latency runs out.
Reliability
In Quorum#
The Queue's Max length is the closest thing to backpressure: past it, the Queue refuses new tasks, and the upload or export that sent one fails. With no limit, Queue depth grows when Workers drain tasks slower than they arrive. A new task waits behind the backlog, and users score an upload or export on when its result is ready: past 40 s for an upload, or 4 minutes for an export, they are frustrated. Add Workers or make them bigger to bring the depth down.