When you use Message Queue, there are some restrictions to pay attention.
|Restriction Items||Adjust or Not||Adjust Method|
|TPS of each Topic is 5000 (Public Network Area is 500)||Yes||Ticket|
|The quota for single-region user-created topics is 10||Yes||Ticket|
|The life cycle ( persistent storage time ) of the message is 3 days||No||－|
|The maximum size of the message is 256KB||No||－|
|After the failure of message consumption, the maximum number of attempts to retry is 16 times||No||－|