MQ supports multiple Message Query methods:
- Query by time range and Topic on all messages received by a Topic within a specified period of time.
- Precise query by Topic and Message ID.
- Relatively precise query by Topic and Message Key on messages with the same Message Key.
With these methods, you can find out the content and consumption status of the messages. To trace the time and location of each node in the entire consumption chain of a message, from being sent by the Producer to being received by the Consumer, you can use MQ’s Message Tracing function. For more information, see Message Tracing.