Definition
A buffer that decouples producers from consumers so work can be processed asynchronously and absorb bursts.
How it works
Producers append messages; consumers pull and process at their own pace, so a traffic spike fills the queue instead of crashing the workers (smoothing/back-pressure). Adds durability, retries and at-least-once delivery. Brokers like SQS and RabbitMQ delete on ack; Kafka keeps a replayable log. For low end-to-end latency, keep queues short and consumers scaled to drain faster than they fill.
Common questions
What is Message Queue?
A buffer that decouples producers from consumers so work can be processed asynchronously and absorb bursts.
How does Message Queue work?
Producers append messages; consumers pull and process at their own pace, so a traffic spike fills the queue instead of crashing the workers (smoothing/back-pressure). Adds durability, retries and at-least-once delivery. Brokers like SQS and RabbitMQ delete on ack; Kafka keeps a…
What is Message Queue used for in system design?
Producers append messages; consumers pull and process at their own pace, so a traffic spike fills the queue instead of crashing the workers (smoothing/back-pressure). Adds durability, retries and at-least-once delivery. Brokers like SQS and RabbitMQ delete on ack; Kafka keeps a…