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From: Alexander Shraer <shralex@gmail.com>
Date: Wed, 14 Aug 2013 10:31:50 -0700
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Subject: Re: Dynamically Adding nodes to ZK Ensemble
To: "user@zookeeper.apache.org" <user@zookeeper.apache.org>
Cc: Russ Lavoy <ussray_00@yahoo.com>
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Hi Deepak,

it should work fine, except that you won't be able to invoke the new
reconfig/getconfig/updateServerList APIs from an old client.

This means, for example, that if you add 2 servers to your ensemble, none
of the old clients will migrate to the new servers (this is
what the updateServerList does).

Regards,
Alex


On Wed, Aug 14, 2013 at 10:20 AM, Deepak Jagtap <deepak.jagtap@maxta.com>wrote:

> Hi,
>
> I have one query regarding dynamic zookeeper cluster reconfiguration.
> I will be using zookeeper 3.5.0 as server, but I have an application
> which uses zookeeper-3.4.5 client library API. Upgrading zookeeper client
> version is bit difficult in my environment due to other dependencies.
> Will 3.4.5 client work fine with 3.5.0 server during cluster
> reconfiguration
> Or I must use 3.5.0 client in this case?
>
> Thanks & Regards,
> Deepak
>
>
> On Tue, Aug 13, 2013 at 3:46 PM, Alexander Shraer <shralex@gmail.com>
> wrote:
>
> > Hi,
> >
> > A user manual is linked from here:
> >
> > https://issues.apache.org/jira/browse/ZOOKEEPER-1660
> >
> > Regards,
> > Alex
> >
> > On Tue, Aug 13, 2013 at 3:42 PM, Deepak Jagtap <deepak.jagtap@maxta.com>
> > wrote:
> > > Hi Russ,
> > >
> > > This presentation gives brief idea about zookeeper cluster reconfig
> > > mechanism:
> > >
> >
> http://www.slideshare.net/Hadoop_Summit/dynamic-reconfiguration-of-zookeeper
> > >
> > > zookeeper 3.5.0 source has zkCli.sh utility which supports reconfig
> > command
> > > to
> > > dynamically reconfigure the cluster.
> > >
> > > Regards,
> > > Deepak
> > >
> > >
> > >
> > >
> > > On Tue, Aug 13, 2013 at 12:49 PM, Russ Lavoy <ussray_00@yahoo.com>
> > wrote:
> > >
> > >> Hello,
> > >>
> > >> I would like to add ZK nodes dynamically to an ensemble.  I have seen
> > >> https://issues.apache.org/jira/browse/ZOOKEEPER-107 but I do not see
> > any
> > >> documentation on how to do this.
> > >>
> > >> Can anyone give me some insight?
> > >>
> > >> Thanks
> >
>

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