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From Jun Rao <jun...@gmail.com>
Subject Re: Broker not in sync
Date Mon, 27 Oct 2014 15:56:34 GMT
We measure the max lag of each follower replica (
http://kafka.apache.org/documentation.html#monitoring). Could you see if
the lag is widening? Also, could you enable the request log on the leader
and see if the follower is still issuing fetch requests?

Thanks,

Jun

On Fri, Oct 24, 2014 at 9:17 AM, Dorian Zaccaria <dorian@datadoghq.com>
wrote:

> Hi all!
>
> One of our broker went out of sync for one partition in one topic and we
> were wondering how this can happen. The broker is still in the list of
> replica and registered in zookeeper with the right ip address.
>
> I noticed that the offset in replication-offset-checkpoint is stuck to a
> certain value.
>
> Moreover there is a lot of traffic between the leader and this replica, so
> I guess it is still trying to synchronize with the leader.
>
> Is there a way to fix this error? Or at least to get more information about
> it? There is no specific errors in the broker and controller logs.
>
> We are using kafka 0.8.1.1
>
> Thanks,
>
> Dorian
>

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