Hi Stevo,
Common requests for producers and consumers are only metadata, and for
admin clients its request like describe groups are not used in other
clients either, so I feel common client metrics per request / response do
not cover much of the requests since most of the time most requests wont
have any attribute values?
BTW usually producer's outgoing byte rate should be larger than incoming
byte rate since the most common request - produce request contain real
bytes payload while produce response only contains a few bytes as acks,
unless your producer's sending traffic is very low.
Guozhang
On Thu, Dec 22, 2016 at 6:22 AM, Stevo Slavić wrote:
> Hello Apache Kafka community,
>
> Please correct me if wrong, I assume common Kafka client metrics (see
> https://kafka.apache.org/documentation.html#selector_monitoring ) are
> aggregated metrics of all different requests particular client instance
> makes. So e.g. producer common metrics like outgoing-byte-rate and
> incoming-byte-rate include not only Produce request/response byte-rate but
> also all other requests producer makes, like Metadata request/response,
> correct?
>
> If so, would it be technically possible to have, as addition, or instead,
> common client metrics per request/response?
>
> E.g. I'm seeing that producer instance outgoing-byte-rate (data producer
> sends to brokers) is lower than incoming-byte-rate (data received by
> producer) - I guess that metadata requests are contributing to
> incoming-byte-rate, but cannot see it from client metrics.
>
> Or is it considered to be enough to have this breakdown per request not in
> client metrics, but on broker side only?
>
> Kind regards,
> Stevo Slavic.
>
--
-- Guozhang
