Question

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Choosing a stand-alone full-text search server: Sphinx or SOLR?

I will use it to do full text search in my ruby on rails app.

which is the best choice.

solr use java to do this job. or sphix in ruby?

Answer 1

I have no experience with Solr, but Sphinx is easy to install, fast and works great with Thinking Sphinx: http://freelancing-god.github.com/ts/en/indexing.html

There is also a good railscast:
http://railscasts.com/episodes/120-thinking-sphinx

This guy gives you some arguments why to go with Sphinx:
http://jamesgolick.com/tags/ultrasphinx.html
(He uses the Ultrasphinx plugin to connect Rails and Sphinx. I tried both and ended up using Thinking Sphinx)

You can find a comparison of both plugins here:
http://reinh.com/blog/2008/07/14/a-thinking-mans-sphinx.html