Metric count of messages Ack'ed / Term'ed / Nak'ed

[pierrerx-ringover]

Is there a metric that let us differentiate the count of messages which have been Ack'ed / Term'ed / Nak'ed, etc ?

(I am not interested in the acked vs pending messages)

https://docs.nats.io/running-a-nats-service/nats_admin/monitoring

If this metric does not exist currently,

• would the Nats Developer allow a PR that would add the declaration and incrementation of this new metric ?
• who would be interested in this new metric ?

[ripienaar]

Could be useful stats to have yes, cc @bruth ?

[jnmoyne]

Could be good info to have for an admin or dev to maybe help debug application bugs. It would be the number of nacks not the number of messages being nacked though (as you could nack the same message more than once).