If the producer has been throttled, we should return the exception to the
user after exceeding the publish timeout.
Otherwise, if a producer has been throttled for 1ms, the producer failed
all the pending messages(ordering guarantee),
this might introduce confusion and might introduce more workload
Hi all:
Now, Broker limits the rate of producing messages by setting
`channel.setAutoRead(false)`. But no exception is returned to the client,
or any log is printed, which makes it very difficult for us to troubleshoot
the problem.
The client timeout when sending messages and the connection will b
