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From Erik Hatcher <>
Subject Re: Solr via ruby
Date Thu, 17 Sep 2009 16:14:57 GMT

On Sep 17, 2009, at 11:40 AM, Ian Connor wrote:
> Is there any support for connection pooling or a more optimized data
> exchange format?

The solr-ruby library (as do other Solr + Ruby libraries) use the ruby  
response format and eval it.  solr-ruby supports keeping the HTTP  
connection alive too.

> We are looking at any further ways to optimize the solr
> queries so we can possibly make more of them in the one request.
> The JSON like format seems pretty tight but I understand when the
> distributed search takes place it uses a binary protocol instead of  
> text. I
> wanted to know if that was available or could be available via the  
> ruby
> library.
> Is it possible to host a local shard and skip HTTP between ruby and  
> solr?

If you use JRuby you can do some fancy stuff, like use the javabin  
update and response formats so no XML is involved, and you could also  
use Solr's EmbeddedSolrServer to avoid HTTP.   However, in practice  
rarely is HTTP the bottleneck and actually offers a lot of advantages,  
such as easy commodity load balancing and caching.

But JRuby + Solr is a very beautiful way to go!

If you're using MRI Ruby, though, you don't really have any options  
other than to go over HTTP. You could use json or ruby formatted  
responses - I'd be curious to see some performance numbers comparing  
those two.


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