Ok Garvit I still don't see the image but based on these inputs you provided I'm thinking that the possible scenario could be that between two polls from the consumer: (a) the number of records added to the partitions already consumed in previous poll is 500 or more (max.poll.records) or (b) the size of records in the partitions already consumed in previous poll is around ~50Mb (fetch.max.bytes)
Regards, Srinath. On Thu, Jun 27, 2019 at 7:41 AM Garvit Sharma <eng.gar...@gmail.com> wrote: > Hi Srinath, > > I have attached the image. > > The partitions belong to the same topic only. I have not explicitly set > max.partition.fetch.bytes or fetch.max.bytes or max.poll.records so it > should take the default values. > > Let me know. > > Thanks, > > On Thu, Jun 27, 2019 at 7:11 AM Srinath C <srinat...@gmail.com> wrote: > >> Hi Garvit, >> >> Am unable to see the image you attached for some reason and am not able to >> see if the partitions are in the same topic or in different topics. >> Check if any of max.partition.fetch.bytes or fetch.max.bytes or >> max.poll.records configured in your consumer is causing the behaviour. >> >> Regards, >> Srinath >> >> >> On Thu, Jun 27, 2019 at 5:43 AM Peter Bukowinski <pmb...@gmail.com> >> wrote: >> >> > Is there a correlation between the lagging partitions and the consumer >> > assigned to them? >> > >> > > On Jun 26, 2019, at 4:25 PM, Garvit Sharma <eng.gar...@gmail.com> >> wrote: >> > > >> > > Can anyone please help me with this. >> > > >> > > On Wed, Jun 26, 2019 at 8:56 PM Garvit Sharma <eng.gar...@gmail.com> >> > wrote: >> > > >> > >> Hey Steve, >> > >> >> > >> I have checked, count of messages on all the partitions are same. >> > >> >> > >> I am still exploring an approach using which the root cause could be >> > >> determined. >> > >> >> > >> Thanks, >> > >> >> > >> On Wed, Jun 26, 2019 at 8:07 PM Garvit Sharma <eng.gar...@gmail.com> >> > >> wrote: >> > >> >> > >>> I am not sure about that. Is there a way to analyse that ? >> > >>> >> > >>> On Wed, Jun 26, 2019 at 7:35 PM Steve Howard < >> > steve.how...@confluent.io> >> > >>> wrote: >> > >>> >> > >>>> Hi Garvit, >> > >>>> >> > >>>> Are the slow partitions "hot", i.e., receiving a lot more messages >> > than >> > >>>> others? >> > >>>> >> > >>>> Thanks, >> > >>>> >> > >>>> Steve >> > >>>> >> > >>>> On Wed, Jun 26, 2019, 9:56 AM Garvit Sharma <eng.gar...@gmail.com >> > wrote: >> > >>>> >> > >>>>> Just to add more details, these consumers are processing the Kafka >> > >>>> events >> > >>>>> and writing to DB(fast write guaranteed). >> > >>>>> >> > >>>>> On Wed, Jun 26, 2019 at 7:23 PM Garvit Sharma < >> eng.gar...@gmail.com> >> > >>>>> wrote: >> > >>>>> >> > >>>>>> Hi All, >> > >>>>>> >> > >>>>>> I can see huge consumer lag in a few partitions of Kafka topic. I >> > >>>> need to >> > >>>>>> know the root cause of this issue. >> > >>>>>> >> > >>>>>> Please let me know, how to proceed. >> > >>>>>> >> > >>>>>> Below is sample consumer lag data : >> > >>>>>> >> > >>>>>> [image: image.png] >> > >>>>>> >> > >>>>>> Thanks, >> > >>>>>> >> > >>>>>> >> > >>>>> >> > >>>> >> > >>> >> > >> > >> >
