Hi Jose, The KIP describes a couple of existing metrics that can be used to answer that question:
The following metrics are used to determine both questions: > > - Client name and version: > > kafka.server:clientSoftwareName=(client-software-name),clientSoftwareVersion=(client-software-version),listener=(listener),networkProcessor=(processor-index),type=(type) > - Request name and version: > > kafka.network:type=RequestMetrics,name=RequestsPerSec,request=(api-name),version=(api-version)} > > Are you suggesting that this is too complicated and hence we should add a metric that tracks AK 4.0 support explicitly? Ismael On Tue, Jan 10, 2023 at 10:33 AM José Armando García Sancio <jsan...@confluent.io.invalid> wrote: > Hi Ismael, > > Thanks for the improvement. > > I haven't been following the discussion in detail so it is possible > that this was already discussed. > > If a user upgrades to Apache Kafka 4.0 it is possible for some of > their clients to stop working because the request's version would not > be a version that Kafka 4.0 supports. Should we add metrics or some > other mechanism that the user can monitor to determine if it is safe > to upgrade Kafka to 4.0. For example, the metrics could report if a > Kafka broker received a request or response in the past 7 days that > would not be supported by Kafka 4.0. > > Thanks > -- > -José >
