So to make JMX accurate, we need to tweak the frequency of commits? What
setting would that be?

On Mon, Nov 16, 2015 at 8:40 AM, Scott Reynolds <sreyno...@twilio.com>
wrote:

> On Mon, Nov 16, 2015 at 8:27 AM, Abu-Obeid, Osama <
> osama.abu-ob...@morganstanley.com> wrote:
>
> > I can observe the same thing:
> >
> > - Lag values read through the Kafka consumer JMX is 0
> >
> This metric includes *uncommitted* offsets
>
> - Lag values read through kafka-run-class.sh
> > kafka.tools.ConsumerOffsetChecker is on average 200K-400K
> >
> * This is just the *committed* offsets
>
>
> > When the Lag value in the Kafka consumer JMX is high (for example 5M),
> > ConsumerOffsetChecker shows a matching number.
> >
> > I am running kafka_2.10-0.8.2.1
> >
> > Osama
> >
> > -----Original Message-----
> > From: allen chan [mailto:allen.michael.c...@gmail.com]
> > Sent: Saturday, November 14, 2015 8:34 PM
> > To: users@kafka.apache.org
> > Subject: Re: consumer offset tool and JMX metrics do not match
> >
> > I believe producers / brokers / and consumers has been restarted at
> > different times.
> > What do you think the issue is?
> >
> > On Sat, Nov 14, 2015 at 2:52 AM, Prabhjot Bharaj <prabhbha...@gmail.com>
> > wrote:
> >
> > > Hi,
> > >
> > > Did any of your brokers/consumers undergo a restart between the time
> > > after you had started the consumption and until you see this issue ?
> > >
> > > Thanks,
> > > Prabhjot
> > >
> > >
> > >
> > > On Sat, Nov 14, 2015 at 5:53 AM, allen chan
> > > <allen.michael.c...@gmail.com>
> > > wrote:
> > >
> > > > I also looked at this metric in JMX and it is also 0
> > > >
> > > *kafka.consumer:type=ConsumerFetcherManager,name=MaxLag,clientId=logst
> > > ash*
> > > >
> > > > On Fri, Nov 13, 2015 at 4:06 PM, allen chan <
> > > allen.michael.c...@gmail.com>
> > > > wrote:
> > > >
> > > > > Hi All,
> > > > >
> > > > > I am comparing the output from kafka.tools.ConsumerOffsetChecker
> > > > > vs JMX
> > > > >
> > > >
> > > (kafka.server:type=FetcherLagMetrics,name=ConsumerLag,clientId=logstas
> > > h,topic=logstash_fdm,partition=*)
> > > > > and they do not match.
> > > > >
> > > > > ConsumerOffsetChecker is showing ~60 Lag per partition and JMX
> > > > > shows 0
> > > > for
> > > > > all partitions.
> > > > >
> > > > > I am running kafka_2.11-0.8.2.2 and using jconsole to connect to
> JMX.
> > > > >
> > > > > Has anyone seen this issue before? I am trying to use JMX to pull
> > > > > stats into monitoring system
> > > > >
> > > > >
> > > > > --
> > > > > Allen Michael Chan
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Allen Michael Chan
> > > >
> > >
> > >
> > >
> > > --
> > > ---------------------------------------------------------
> > > "There are only 10 types of people in the world: Those who understand
> > > binary, and those who don't"
> > >
> >
> >
> >
> > --
> > Allen Michael Chan
> >
> >
> >
> >
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-- 
Allen Michael Chan

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