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From Lukáš Vlček <>
Subject Re: Arguments for Solr implementation at public web site
Date Fri, 13 Nov 2009 11:00:50 GMT

thanks for inputs so far... however, let's put it this way:

When you need to search for something Lucene or Solr related, which one do
you use:
- generic Google
- go to a particular mail list web site and search from here (if there is
any search form at all)
- go to and use its search capability


On Fri, Nov 13, 2009 at 11:50 AM, Andrew Clegg <>wrote:

> Lukáš Vlček wrote:
> >
> > I am looking for good arguments to justify implementation a search for
> > sites
> > which are available on the public internet. There are many sites in
> > "powered
> > by Solr" section which are indexed by Google and other search engines but
> > still they decided to invest resources into building and maintenance of
> > their own search functionality and not to go with [user_query site:
> >] google search. Why?
> >
> You're assuming that Solr is just used in these cases to index discrete web
> pages which Google etc. would be able to access via following navigational
> links.
> I would imagine that in a lot of cases, Solr is used to index database
> entities which are used to build [parts of] pages dynamically, and which
> might be viewable in different forms in various different pages.
> Plus, with stored fields, you have the option of actually driving a website
> off Solr instead of directly off a database, which might make sense from a
> speed perspective in some cases.
> And further, going back to page-only indexing -- you have no guarantee when
> Google will decide to recrawl your site, so there may be a delay before
> changes show up in their index. With an in-house search engine you can
> reindex as often as you like.
> Andrew.
> --
> View this message in context:
> Sent from the Solr - User mailing list archive at

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