الحواجز (Bulkheads)

في هذا الدرس

isolate resource pools per dependency.

الموضوعات المخطط لها

• Named after ship compartments: a leak floods one section, not the whole ship.
• Give each dependency its own limit on concurrent calls (semaphore) or its own thread pool.
• A slow reviews call can then use at most its share, leaving capacity for payments.
• Excess calls are rejected quickly rather than queued.
• Size limits from expected concurrency, not guesses; revisit with load tests.