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From Ewen Cheslack-Postava <e...@confluent.io>
Subject Re: Metric meaning
Date Fri, 06 Jan 2017 03:38:24 GMT
There's not currently anything more detaild than what is included in
http://kafka.apache.org/documentation/#monitoring There's some work trying
to automate the generation of that documentation (
https://issues.apache.org/jira/browse/KAFKA-3480). That combined with some
addition to give longer descriptions for metrics could potentially help
this situation.

That said, for the example you mentioned, this is just what the description
says: when a log segment gets flushed to disk (including the index and time
index files), this tracks how long that flush takes.


On Thu, Jan 5, 2017 at 7:21 AM, Robert Quinlivan <rquinlivan@signal.co>

> Hello,
> Are there more detailed descriptions available for the metrics exposed by
> Kafka via JMX? The current documentation provides some information but a
> few metrics are not listed in detail – for example, "Log flush rate and
> time."
> --
> Robert Quinlivan
> Software Engineer, Signal

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