What is the message queue RabbitMQ in Java?

1. RabbitMQ is a highly concurrent and highly reliable AMQP message queue server implemented in Erlang.

2. Usage scenarios include improving system response speed, system stability, asynchronous service calls, etc.

Improve system response speed

Tasks are processed asynchronously. Operations that do not require synchronous processing and take a long time are notified by the message queue to the message receiver for asynchronous processing. Improved application response time.

Improve system stability

When the system hangs up, the operation content is placed in the message queue.

Asynchronous service calls

The service has no direct calling relationship, but communicates through the queue

Service decoupling

Application decoupling MQ Equivalent to an intermediary, the producer interacts with the consumer through MQ, which decouples the application.

Sorting guarantees FIFO

Follows the first-in-first-out characteristics of the queue

Eliminates peaks

Asynchronously speeds up (sending messages) and improves system stability (multiple system call), service decoupling (5-10 services), ordering guarantee, elimination of peaks

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