How does RocketMQ ensure the sequencing of messages?

RocketMQ offers two ways to ensure message ordering:

1. Sequential message delivery: By using the sequential message delivery method, messages are sent to the same queue according to a certain rule. This allows consumers to consume the messages in order.
2. Sequential message consumption: By using the sequential message consumption method, consumers can specify that only one consumer thread within the consumer group consumes messages. This ensures the sequential consumption of messages.

It is important to note that RocketMQ only guarantees message ordering within the same queue, not globally. If your business requires global ordering, you can send messages to the same queue and consume them in the order they were sent.