If the application does not respond for a few minutes and a request queue accumulates, how will they be processed? Will the application crash with OOM?

If an application becomes unresponsive for several minutes and requests accumulate in the queue, further processing depends on the system architecture and configuration.

• Queue processing: Usually, requests accumulate in a queue (for example, on a web server or load balancer). If the application cannot process them quickly enough, the queue grows.

• OOM risk: If the queue and related resources (such as memory for storing requests) are not limited, the application may eventually exhaust available memory and crash with an Out Of Memory (OOM) error.

• Protection: To prevent OOM, limits are usually set on the queue size, timeouts, and mechanisms to discard or reject new requests during overload.

• Practice: In production, it is important to set up monitoring, limits, and fault-tolerance mechanisms so that during prolonged unavailability, the number of requests does not grow uncontrollably.

Thus, without special measures, an application can crash with OOM if the request queue grows uncontrollably.