CodePudding user response:
System availability to reduce: just worry about the problem of system before, now consider the problem of MQ hang up, MQ hang up, the associated system will be unable to provide services,System complexity is high, want to consider message loss, repeated consumption problems such as news,
Consistency problem: multiple MQ consumption system, partial success, partial failure, want to consider the transaction problem,
CodePudding user response:
Mainly two points:1. Increase system complexity
2. It is difficult to guarantee consistency