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From Rachid Bouacheria <willi...@gmail.com>
Subject Re: from zookeper embedded to standalone
Date Tue, 15 Mar 2016 18:07:18 GMT
Well I wanted to add the 3 or 4 new standalone zookeper servers along with
the embedded ones.
so my quorum would be comprised of a mix of embedded and standalone
zookeper server.
Once everything is running, start retiring the embedded servers.
But I am not sure I can do this.




On Tue, Mar 15, 2016 at 9:37 AM, Flavio Junqueira <fpj@apache.org> wrote:

> I was actually referring to ZooKeeper data. If you move your ZooKeeper
> instance to a different set of servers, then you'll lose your history. I
> don't know how Solr copes with such a move, but sounds risky.
>
> -Flavio
>
> > On 15 Mar 2016, at 16:32, Rachid Bouacheria <willix44@gmail.com> wrote:
> >
> > Hi Flavio,
> >
> > Thank you so much for your reply!
> >
> > I did send an email to the solr list...but no reply yet.
> >
> > No I am not planning on migrating to Solr to a new set of servers.
> >
> > My cluster is comprised of 3 servers with 2 shards currently running with
> > with zookeper embedded
> >
> > *What I have Currently*
> > Server1: Leader + replica1 + replica2 (with zookeper embedded)
> > Server2: Leader + replica3 + replica4 (with zookeper embedded)
> > Server3: Leader + replica4 + replica5 (with zookeper embedded)
> >
> > *What I want to do *
> >
> > Server1: Leader + replica1 + replica2
> > Server2: Leader + replica3 + replica4
> > Server3: Leader + replica4 + replica5
> >
> > Server4 :zooper1
> > Server5: zooper2
> > Server6: zooper3
> >
> > The solr data will not be touched.
> >
> >
> > I was thinking that I would add server4,server5,server6 to my exiting
> > (embedded) ensemble 1st.
> > Then remove the embedded zookeper.
> >
> > Not sure if it would work..
> > Rachid
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Tue, Mar 15, 2016 at 9:13 AM, Flavio Junqueira <fpj@apache.org>
> wrote:
> >
> >> Hi Rachid,
> >>
> >> Have you asked on the Solr list? They are probably better equipped to
> >> answer your question.
> >>
> >> On our end, if you are switching to a new set of servers, it is unclear
> >> how you're going to safely migrate your data from the old ensemble to
> the
> >> new one. It is also unclear what will happen with in-flight requests.
> If it
> >> is the same set of servers, then I don't se why you'd have issues. We'd
> >> need to know more about your setup, though.
> >>
> >> -Flavio
> >>
> >>> On 15 Mar 2016, at 16:07, Rachid Bouacheria <willix44@gmail.com>
> wrote:
> >>>
> >>> Hi,
> >>>
> >>> I am running solr 4.x on 3 servers with zookeper embedded in prod.
> >>>
> >>> Each servers has 1 leader and 2 replicas.
> >>>
> >>> I want to switch zookeper from embedded to standalone.
> >>>
> >>> I want to know if the steps are documented anywhere? I could not find
> >> them.
> >>>
> >>> I am worried my index will get messed up if in the transition.
> >>>
> >>> Thank you very much!
> >>
> >>
>
>

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