تجويع الخيوط

في هذا الدرس

recognize and diagnose exhausted thread pools.

الموضوعات المخطط لها

• Symptom: latency climbs while CPU stays low; requests queue.
• Causes: blocking calls on a small pool, a slow dependency holding threads, a pool used for both work and waiting (pool deadlock).
• Evidence: take thread dumps a few seconds apart; many threads waiting in the same call point to the culprit; check pool queue depth and active counts metrics.
• Fixes: timeouts, bulkheads (separate pools per dependency), bounded queues with load shedding, virtual threads for blocking I/O where suitable (verify version support and pinning issues).