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From Ben Davison <ben.davi...@7digital.com>
Subject Re: Topic description by zookeeper after a kafka server dies
Date Tue, 10 May 2016 13:27:13 GMT
Hi Paolo,

Would be interested to hear the answer also. We've been getting around this
ourselves by setting the new broker that comes up back to id 1001.

Thanks,

Ben

On Tuesday, 10 May 2016, Paolo Patierno <ppatierno@live.com> wrote:

> Hello,
>
> I'm experiencing the usage of Kafka with Kubernetes and I don't understand
> the reason of the following behavior.
>
> Starting with a pod with zookeeper and a pod with a kafka server (id =
> 1001). Create a topic named "test" ... producer and consumer can
> send/receive message without problems.
> I turn off the pod with kafka server and Kubernetes restarts another pod
> with a new kafka server (id = 1002).
> Now ... I know that the topic "test" is lost because the related log was
> in the previous kafka server (id = 1001).
> Anyway, the zookeeper server still have information about topic "test" and
> if I use "describe" command it says me that the leader is still the 1001
> server !!
>
> I tried the script for reassign replicas and the preferred replica
> election : now zookeeper shows me that the 1002 server is in the replicas
> list but the leader is still the 1001 and the only one in the ISR list.
> Why zookeeper doesn't know that kafka server 1001 is dead ??
>
> Thanks,
> Paolo.
>
> Paolo PatiernoSenior Software Engineer (IoT) @ Red Hat
> Microsoft MVP on Windows Embedded & IoTMicrosoft Azure Advisor
> Twitter : @ppatierno
> Linkedin : paolopatierno
> Blog : DevExperience

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