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Posted to users@kafka.apache.org by Simon Cooper <si...@featurespace.co.uk> on 2014/05/14 11:17:49 UTC

Finding out how underreplicated a broker is

In the output of kafka-topics.sh -describe, it gives the ISR. What I want to find out is why a particular broker is not in ISR, how far behind it is, and when it will get back into the ISR. I can't seem to find this information in the logs, cmdline output, or zookeeper. How can I find out how far behind the ISR a particular broker is?

SimonC

Re: Finding out how underreplicated a broker is

Posted by Jun Rao <ju...@gmail.com>.

Take a look at ConsumerLag jmx in
http://kafka.apache.org/documentation.html#monitoring

Thanks,

Jun


On Wed, May 14, 2014 at 2:17 AM, Simon Cooper <
simon.cooper@featurespace.co.uk> wrote:

> In the output of kafka-topics.sh -describe, it gives the ISR. What I want
> to find out is why a particular broker is not in ISR, how far behind it is,
> and when it will get back into the ISR. I can't seem to find this
> information in the logs, cmdline output, or zookeeper. How can I find out
> how far behind the ISR a particular broker is?
>
> SimonC
>