ReferenceGlossary
Graceful degradation
Keeping the important part of a service working when it is over capacity by turning off the expensive, optional parts instead of failing everything: the page still loads, and the report waits.
Reliability
In Quorum#
Graceful degradation research adds a switch to an App Server. A saturated Node then drops its dearest request kinds first, exports and uploads before reads, so the cheap kinds keep their latency (10). Load shedding is the other order: it drops the least valuable kinds first, bots and ad bids before pages.