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From Sameer Maggon <sam...@measuredsearch.com>
Subject Re: SolrCloud clarification/Question
Date Wed, 16 Sep 2015 19:44:51 GMT
I just gave an example API call, but for your scenario, the
replicationFactor will be 4 (replicationFactor=4). In this way, all 4
machines will have the same copy of the data and you can put an LB in front
of those 4 machines.

On Wed, Sep 16, 2015 at 12:00 PM, Ravi Solr <ravisolr@gmail.com> wrote:

> OK...I understood numShards=1, when you say replicationFactor=2 what does
> it mean ? I have 4 machines, then, only 3 copies of data (1 at leader and 2
> replicas) ?? so am i not under utilizing one machine ?
>
> I was more thinking in the lines of a Mesh connectivity format i.e.
> everybody has others copy so that I can put all 4 machines behind a Load
> Balancer...Is that a wrong way to look at it ?
>
> Thanks
>
> Ravi Kiran
>
> On Wed, Sep 16, 2015 at 2:51 PM, Sameer Maggon <sameer@measuredsearch.com>
> wrote:
>
> > You'll have to say numShards=1 and replicationFactor=2.
> >
> > http://
> >
> >
> [hostname]:8983/solr/admin/collections?action=CREATE&name=test&configName=test&numShards=1&replicationFactor=2
> >
> > On Wed, Sep 16, 2015 at 11:23 AM, Ravi Solr <ravisolr@gmail.com> wrote:
> >
> > > Thank you very much for responding Sameer so numShards=0 and
> > > replicationFactr=4 if I have 4 machines ??
> > >
> > > Thanks
> > >
> > > Ravi Kiran Bhaskar
> > >
> > > On Wed, Sep 16, 2015 at 12:56 PM, Sameer Maggon <
> > sameer@measuredsearch.com
> > > >
> > > wrote:
> > >
> > > > Absolutely. You can have a collection with just replicas and no
> shards
> > > for
> > > > redundancy and have a load balancer in front of it that removes the
> > > > dependency on a single node. One of them will assume the role of a
> > > leader,
> > > > and in case that leader goes down, one of the replicas will be
> elected
> > > as a
> > > > leader and your application will be fine.
> > > >
> > > > Thanks,
> > > >
> > > > On Wed, Sep 16, 2015 at 9:44 AM, Ravi Solr <ravisolr@gmail.com>
> wrote:
> > > >
> > > > > Hello,
> > > > >          We are trying to move away from Master-Slave configuration
> > to
> > > a
> > > > > SolrCloud environment. I have a couple of questions. Currently in
> the
> > > > > Master-Slave setup we have 4 Machines 2 of which are indexers and
2
> > of
> > > > them
> > > > > are query servers. The query servers are fronted via Load Balancer.
> > > > >
> > > > > There are 3 solr cores for 3 different/separate applications
> > (mutually
> > > > > exclusive). Each core is a complete index of all docs (i.e. the
> data
> > is
> > > > not
> > > > > sharded).
> > > > >
> > > > >       We intend to keep it in a non-sharded mode even after the
> > > SolrCloud
> > > > > mode.The prime motivation to move to cloud is to effectively use
> all
> > > > > servers for indexing and querying (read fault tolerant/redundant).
> > > > >
> > > > > So, the real question is, can SolrCloud be used without shards ?
> > i.e. a
> > > > > "collection" resides entirely on one machine rather than
> partitioning
> > > > data
> > > > > onto different machines ?
> > > > >
> > > > > Thanks
> > > > >
> > > > > Ravi Kiran Bhaskar
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > *Sameer Maggon*
> > > > Measured Search
> > > > c: 310.344.7266
> > > > www.measuredsearch.com <http://measuredsearch.com>
> > > >
> > >
> >
> >
> >
> > --
> > *Sameer Maggon*
> > Measured Search
> > c: 310.344.7266
> > www.measuredsearch.com <http://measuredsearch.com>
> >
>



-- 
*Sameer Maggon*
Measured Search
c: 310.344.7266
www.measuredsearch.com <http://measuredsearch.com>

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