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Posted to solr-user@lucene.apache.org by Apoorva Gaurav <ap...@myntra.com> on 2014/10/13 13:28:18 UTC
best load balancer for solr cloud
Hello All,
Is it preferable to use CloudSolrServer or using an external load balancer
like haproxy. We're currently channeling all our requests via haproxy but
want to get rid of management hassles as well as additional network call
but saw a significant degradation in latency on switching to
CloudSolrServer. Please suggest.
--
Thanks & Regards,
Apoorva
Re: best load balancer for solr cloud
Posted by Shawn Heisey <ap...@elyograg.org>.
On 10/14/2014 2:45 AM, Apoorva Gaurav wrote:
> Any specific configuration needed for CloudSolrServer as I've seen
> increased latency on using it. Does ConcurrentUpdateSolrServer itself do
> discovery like CloudSolrServer.
ConcurrentUpdateSolrServer is just a wrapper for HttpSolrServer that
does simultaneous background indexing of multiple update requests with
multiple threads. It has no idea what's happening in the SolrCloud
clusterstate.
CloudSolrServer is the only cloud-aware Solr client that I know about.
I think someone is working on a cloud-aware client for another
programming language besides Java, but I don't remember which language
and I don't know what the status is.
Thanks,
Shawn
Re: best load balancer for solr cloud
Posted by Apoorva Gaurav <ap...@myntra.com>.
Thanks Shawn, Amey,
Any specific configuration needed for CloudSolrServer as I've seen
increased latency on using it. Does ConcurrentUpdateSolrServer itself do
discovery like CloudSolrServer.
On Mon, Oct 13, 2014 at 7:53 PM, Shawn Heisey <ap...@elyograg.org> wrote:
> On 10/13/2014 5:28 AM, Apoorva Gaurav wrote:
> > Is it preferable to use CloudSolrServer or using an external load
> balancer
> > like haproxy. We're currently channeling all our requests via haproxy but
> > want to get rid of management hassles as well as additional network call
> > but saw a significant degradation in latency on switching to
> > CloudSolrServer. Please suggest.
>
> If your client is Java, then there's no contest. Use CloudSolrServer.
> It can react almost instantly to cluster changes. A load balancer will
> need to do a health-check cycle before it knows about machines coming up
> or going down.
>
> The other reply that you received mentioned ConcurrentUpdateSolrServer.
> This is a high-performance option, but it comes at a cost -- your
> application will never be informed about any indexing errors. Even if
> the index requests all fail, your application will never know.
>
> Thanks,
> Shawn
>
>
--
Thanks & Regards,
Apoorva
Re: best load balancer for solr cloud
Posted by Shawn Heisey <ap...@elyograg.org>.
On 10/13/2014 5:28 AM, Apoorva Gaurav wrote:
> Is it preferable to use CloudSolrServer or using an external load balancer
> like haproxy. We're currently channeling all our requests via haproxy but
> want to get rid of management hassles as well as additional network call
> but saw a significant degradation in latency on switching to
> CloudSolrServer. Please suggest.
If your client is Java, then there's no contest. Use CloudSolrServer.
It can react almost instantly to cluster changes. A load balancer will
need to do a health-check cycle before it knows about machines coming up
or going down.
The other reply that you received mentioned ConcurrentUpdateSolrServer.
This is a high-performance option, but it comes at a cost -- your
application will never be informed about any indexing errors. Even if
the index requests all fail, your application will never know.
Thanks,
Shawn