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Kafka, mail # user - some healthy broker disappear from zookeeper


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Re: some healthy broker disappear from zookeeper
Neha Narkhede 2012-11-20, 19:01
zookeeper server version is 3.3.3 is pretty buggy and has known
session expiration and unexpected ephemeral node deletion bugs.
Please upgrade to 3.3.4 and retry.

Thanks,
Neha

On Tue, Nov 20, 2012 at 10:42 AM, Xiaoyu Wang <[EMAIL PROTECTED]> wrote:
> Hello everybody,
>
> We have run into this problem a few times in the past week. The symptom is
> some broker disappear from zookeeper. The broker appears to be healthy.
> After that, producers start producing lots of ZK producer cache stale log
> and stop making any progress.
>  "logger.info("Try #" + numRetries + " ZK producer cache is stale.
> Refreshing it by reading from ZK again")"
>
> We are running kafka 0.7.1 and the zookeeper server version is 3.3.3.
>
> The missing broker will show up in zookeeper after we restart it. My
> question is
>
>    1. Did anyone encounter the same problem? how did you fix it?
>    2. Why producer is not making any progress? Can we make the producer
>    work with those brokers that are listed in zookeeper.
>
>
> Thanks,
>
> -Xiaoyu