You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@kafka.apache.org by Narayan Periwal <na...@inmobi.com> on 2018/03/19 13:15:38 UTC
Two instances of Kafka consumer reading same partition
Hi,
We are facing an issue with the Kafka consumer, the new library that got
introduced in 0.9
We are using Kafka broker 0.10.2.1 and consumer client version is also
0.10.2.1
The issue that we have faced is that, after rebalancing, some of the
partitions gets consumed by 2 instances within a consumer group, leading to
duplication of the entire partition data. Both the instances continue to
read the same partition until the next rebalancing, or the restart of those
clients.
Have incorporated the details in this ticket - KAFKA-6681
<https://issues.apache.org/jira/browse/KAFKA-6681>
Please look at it the earliest
Regards,
Narayan
--
_____________________________________________________________
The information contained in this communication is intended solely for the
use of the individual or entity to whom it is addressed and others
authorized to receive it. It may contain confidential or legally privileged
information. If you are not the intended recipient you are hereby notified
that any disclosure, copying, distribution or taking any action in reliance
on the contents of this information is strictly prohibited and may be
unlawful. If you have received this communication in error, please notify
us immediately by responding to this email and then delete it from your
system. The firm is neither liable for the proper and complete transmission
of the information contained in this communication nor for any delay in its
receipt.
Re: Two instances of Kafka consumer reading same partition
Posted by Narayan Periwal <na...@inmobi.com>.
Hi,
We had one more of such an issue, and looks like such issues are coming
more frequently, whenever there is some issue in the kafka cluster.
This time, I could retrieve both the server and client side logs, have
added the detail in the same ticket - KAFKA-6681
<https://issues.apache.org/jira/browse/KAFKA-6681>
Any help will be highly appreciated.
Thanks,
Narayan
On Mon, Mar 19, 2018 at 6:45 PM, Narayan Periwal <narayan.periwal@inmobi.com
> wrote:
> Hi,
>
> We are facing an issue with the Kafka consumer, the new library that got
> introduced in 0.9
>
> We are using Kafka broker 0.10.2.1 and consumer client version is also
> 0.10.2.1
>
> The issue that we have faced is that, after rebalancing, some of the
> partitions gets consumed by 2 instances within a consumer group, leading to
> duplication of the entire partition data. Both the instances continue to
> read the same partition until the next rebalancing, or the restart of those
> clients.
>
> Have incorporated the details in this ticket - KAFKA-6681
> <https://issues.apache.org/jira/browse/KAFKA-6681>
>
> Please look at it the earliest
>
> Regards,
> Narayan
>
--
Thanks,
Narayan
--
_____________________________________________________________
The information contained in this communication is intended solely for the
use of the individual or entity to whom it is addressed and others
authorized to receive it. It may contain confidential or legally privileged
information. If you are not the intended recipient you are hereby notified
that any disclosure, copying, distribution or taking any action in reliance
on the contents of this information is strictly prohibited and may be
unlawful. If you have received this communication in error, please notify
us immediately by responding to this email and then delete it from your
system. The firm is neither liable for the proper and complete transmission
of the information contained in this communication nor for any delay in its
receipt.
Re: Two instances of Kafka consumer reading same partition
Posted by Narayan Periwal <na...@inmobi.com>.
Hi Ted,
Attached the server side logs during this time. Could not retrieve the
consumer side logs as it has hit the retention.
Thanks,
Narayan
On Mon, Mar 19, 2018 at 9:13 PM, Ted Yu <yu...@gmail.com> wrote:
> Can you attach broker and consumer logs to the JIRA ?
>
> Thanks
>
> On Mon, Mar 19, 2018 at 6:15 AM, Narayan Periwal <
> narayan.periwal@inmobi.com
> > wrote:
>
> > Hi,
> >
> > We are facing an issue with the Kafka consumer, the new library that got
> > introduced in 0.9
> >
> > We are using Kafka broker 0.10.2.1 and consumer client version is also
> > 0.10.2.1
> >
> > The issue that we have faced is that, after rebalancing, some of the
> > partitions gets consumed by 2 instances within a consumer group, leading
> to
> > duplication of the entire partition data. Both the instances continue to
> > read the same partition until the next rebalancing, or the restart of
> those
> > clients.
> >
> > Have incorporated the details in this ticket - KAFKA-6681
> > <https://issues.apache.org/jira/browse/KAFKA-6681>
> >
> > Please look at it the earliest
> >
> > Regards,
> > Narayan
> >
> > --
> > _____________________________________________________________
> > The information contained in this communication is intended solely for
> the
> > use of the individual or entity to whom it is addressed and others
> > authorized to receive it. It may contain confidential or legally
> privileged
> > information. If you are not the intended recipient you are hereby
> notified
> > that any disclosure, copying, distribution or taking any action in
> reliance
> > on the contents of this information is strictly prohibited and may be
> > unlawful. If you have received this communication in error, please notify
> > us immediately by responding to this email and then delete it from your
> > system. The firm is neither liable for the proper and complete
> transmission
> > of the information contained in this communication nor for any delay in
> its
> > receipt.
> >
>
--
Thanks,
Narayan
--
_____________________________________________________________
The information contained in this communication is intended solely for the
use of the individual or entity to whom it is addressed and others
authorized to receive it. It may contain confidential or legally privileged
information. If you are not the intended recipient you are hereby notified
that any disclosure, copying, distribution or taking any action in reliance
on the contents of this information is strictly prohibited and may be
unlawful. If you have received this communication in error, please notify
us immediately by responding to this email and then delete it from your
system. The firm is neither liable for the proper and complete transmission
of the information contained in this communication nor for any delay in its
receipt.
Re: Two instances of Kafka consumer reading same partition
Posted by Ted Yu <yu...@gmail.com>.
Can you attach broker and consumer logs to the JIRA ?
Thanks
On Mon, Mar 19, 2018 at 6:15 AM, Narayan Periwal <narayan.periwal@inmobi.com
> wrote:
> Hi,
>
> We are facing an issue with the Kafka consumer, the new library that got
> introduced in 0.9
>
> We are using Kafka broker 0.10.2.1 and consumer client version is also
> 0.10.2.1
>
> The issue that we have faced is that, after rebalancing, some of the
> partitions gets consumed by 2 instances within a consumer group, leading to
> duplication of the entire partition data. Both the instances continue to
> read the same partition until the next rebalancing, or the restart of those
> clients.
>
> Have incorporated the details in this ticket - KAFKA-6681
> <https://issues.apache.org/jira/browse/KAFKA-6681>
>
> Please look at it the earliest
>
> Regards,
> Narayan
>
> --
> _____________________________________________________________
> The information contained in this communication is intended solely for the
> use of the individual or entity to whom it is addressed and others
> authorized to receive it. It may contain confidential or legally privileged
> information. If you are not the intended recipient you are hereby notified
> that any disclosure, copying, distribution or taking any action in reliance
> on the contents of this information is strictly prohibited and may be
> unlawful. If you have received this communication in error, please notify
> us immediately by responding to this email and then delete it from your
> system. The firm is neither liable for the proper and complete transmission
> of the information contained in this communication nor for any delay in its
> receipt.
>