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From sebb <seb...@gmail.com>
Subject Re: What do the numbers in the ConsumerOffsetChecker mean
Date Fri, 04 Apr 2014 01:00:37 GMT
On 4 April 2014 01:51, S L <slouie.at.work@gmail.com> wrote:
> Hi,
>
> Just wondering what the units for the results from the
> ConsumerOffsetChecker are.
>
> For example, this was the output when we ran the OffsetChecker:
> Group           Topic                          Pid Offset          logSize
>         Lag             Owner
> xml1      xmlnew                      0   28317611        32809085
>  4491474         none
>
> Is the lag in bytes or is it an offset pointer of where it's at in the
> topic, or am I totally off and it means something else?  Just asking
> because one time our consumer was stopped for about 30 min but the lag
> value / logSize didn't grow as much as we thought it should in a 30 min
> period.  We know we should get 100+MB of data a minute but the Lag value
> was something like 60000 when we checked after 30 min.
>
> We looked at this site
> https://cwiki.apache.org/confluence/display/KAFKA/FAQ#FAQ-Myconsumerseemstohavestopped%2Cwhy%3F
>
> which makes it look like it represents bytes, yet looking at the
> kafka.apache.org (
> http://kafka.apache.org/documentation.html#basic_ops_consumer_lag) site
> makes it sound like it represents a position in the topic.
>
> Thanks in advance for your help.

Please ask on a Kafka mailing list.

This is not a standard JMeter test element.

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