Hi Colin, thanks for the KIP, sounds like a useful addition to me.
I considered suggesting also reading the rchar property to allow getting an approximation of cache hit ratio, but after some reading it appear to be not as simple as that :) Best regards, Sönke On Wed, 11 Dec 2019 at 18:35, Colin McCabe (Jira) <j...@apache.org> wrote: > > Colin McCabe created KAFKA-9292: > ----------------------------------- > > Summary: KIP-551: Expose disk read and write metrics > Key: KAFKA-9292 > URL: https://issues.apache.org/jira/browse/KAFKA-9292 > Project: Kafka > Issue Type: Improvement > Reporter: Colin McCabe > Assignee: Colin McCabe > > > It's often helpful to know how many bytes Kafka is reading and writing from > the disk. The reason is because when disk access is required, there may be > some impact on latency and bandwidth. We currently don't have a metric that > measures this directly. It would be useful to add one. > > See > https://cwiki.apache.org/confluence/display/KAFKA/KIP-551%3A+Expose+disk+read+and+write+metrics > > > > > -- > This message was sent by Atlassian Jira > (v8.3.4#803005) -- Sönke Liebau Partner Tel. +49 179 7940878 OpenCore GmbH & Co. KG - Thomas-Mann-Straße 8 - 22880 Wedel - Germany
