Status: IN
Two systems illustrate complementary approaches to preventing over-commitment of shared resources: Google Drive reserves full quota at upload initiation (capacity locked upfront via chunked upload protocol), while the hotel reservation system uses an optimistic read-then-verify-version pattern on per-date inventory — though the hotel implementation executes both phases synchronously, making its concurrency check demonstrative rather than functionally necessary under real interleaving.
both use upfront capacity checks to prevent concurrent access from exceeding resource limits
Depends on (SL): gdrive-quota-reservation, hotel-occ-two-phase-reserve