How to deal with MQ message accumulation

Message stacking refers to the situation where messages in a message queue pile up too much, causing consumers to be unable to consume them promptly. Methods to handle message stacking can be considered from the following perspectives:

1. Increasing the number of consumers: Increasing the number of consumers can speed up message consumption, thereby reducing message backlog.
2. Increase consumer purchasing power: improving consumer decision-making and enhancing their ability to process information can lead to faster consumption of goods.
3. Adjusting the concurrency of message processing: The concurrency of message processing can be adjusted according to the actual situation by increasing the number of concurrent processing threads or adjusting the parameters of the thread pool to improve the speed of message processing.
4. Increasing the capacity of the message queue can help reduce message backlog. However, it is important to note that increasing capacity may also increase system load, so it is important to carefully consider the balance based on actual conditions.
5. Set message expiration time: The expiration time of messages can be set according to business needs, expire messages can be discarded directly to avoid message accumulation.
6. Monitor the accumulation of messages: You can use a monitoring system to regularly check the accumulation of messages in the message queue, promptly identify issues, and take appropriate actions.
7. Abnormal message handling: For messages that fail to be consumed, one can apply exception handling measures such as retrying, logging errors, etc., to ensure the messages can be consumed properly.

It is necessary to choose the appropriate processing method based on specific business needs and system conditions, considering factors such as system performance, data consistency, and availability.