Which message types are supported in Alibaba Cloud RocketMQ?

The supported message types in Alibaba Cloud RocketMQ include scheduled messages, which allow messages to be sent with a delay. This functionality is particularly useful for scenarios where you want to ensure that a message is processed at a future time rather than immediately upon delivery. By using scheduled messages, developers can implement various design patterns such as delayed notifications or timed actions within their applications.

Scheduled messages enhance the flexibility of message handling in RocketMQ, making it a powerful option for developers looking to implement time-sensitive operations. Being able to specify a delay before the message becomes available for processing allows for better resource management and operation timing.

Other message types, such as broadcast messages (which send a message to multiple consumers), system messages (which are used for internal communication within the system), and batch messages (which allow multiple messages to be sent in one request), also exist in RocketMQ but are not the correct choice in this context. Therefore, the focus on scheduled messages highlights how RocketMQ can accommodate specific use cases requiring delayed processing.