Hi, Allen, Thanks for the KIP.
It seems the main motivation of the KIP is to estimate the ratio of the clients doing down conversion. I am wondering if we can do that by relying on the metrics we added in 1.0.0 ( https://cwiki.apache.org/confluence/display/KAFKA/KIP-188+-+Add+new+metrics+to+support+health+checks#KIP-188-Addnewmetricstosupporthealthchecks-Messageconversionrateandtime). This metric reports the message rate of down conversion. By comparing this to the message rate of all consumers, you can roughly estimate the ratio of consumers still needing down conversion. Does that cover the main thing that you want from this KIP? Jun On Wed, Mar 28, 2018 at 9:55 AM, Allen Wang <allenxw...@gmail.com> wrote: > Hi All, > > I would like to start voting for KIP-272: Add API version tag to broker's > RequestsPerSec metric. > > https://cwiki.apache.org/confluence/display/KAFKA/KIP- > 272%3A+Add+API+version+tag+to+broker%27s+RequestsPerSec+metric > > Thanks, > Allen >
