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From Yaniv Ben Yosef <yani...@gmail.com>
Subject Re: Implementing filtering based on multiple fields
Date Fri, 08 Jan 2010 10:16:37 GMT
Thanks Otis, that's very helpful.

On Fri, Jan 8, 2010 at 2:08 AM, Otis Gospodnetic <otis_gospodnetic@yahoo.com
> wrote:

> Ah, well, masking it didn't help.  Yes, ignore Bixo, Nutch, and Droids
> then.
> Consider DataImportHandler from Solr or wait a bit for Lucene Connectors
> Framework to materialize.  Or use LuSql, or DbSight, or Sematext's Database
> Indexer.
>
> Yes, I was suggesting a separate index for each user.  That's what Simpy
> uses and has some 200K indices on 1 box.... and I think dozens of QPS
> without any caching, if I remember correctly.  Load is under 1.0.
>
> Otis
> --
> Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch
>
>
>
> ----- Original Message ----
> > From: Yaniv Ben Yosef <yanivby@gmail.com>
> > To: java-user@lucene.apache.org
> > Sent: Thu, January 7, 2010 6:55:18 PM
> > Subject: Re: Implementing filtering based on multiple fields
> >
> > Thanks Otis.
> >
> > If I understand correctly - Bixo, Nutch and Droids are technologies to
> use
> > for crawling the web and building an index. My project is actually about
> > indexing a large database, where you can think of every row as a web
> page,
> > and a particular column is the equivalent of a web site. (I didn't
> mention
> > that in the previous post because I didn't want to complicate my
> question,
> > and it seems equivalent to Google CSE given that Lucene can use virtually
> > any input for indexing, AFAIK)
> > Therefore I'm not sure if the frameworks you've mentioned are applicable
> to
> > my project as they seem to be related to web page indexing, but perhaps
> I'm
> > missing something.
> > Also, what did you mean about isolating users and their data/indices. Did
> > you mean that I should create a separate index per user?
> >
> > Thanks again!
> >
> > On Fri, Jan 8, 2010 at 12:35 AM, Otis Gospodnetic <
> > otis_gospodnetic@yahoo.com> wrote:
> >
> > > For something like CSE, I think you want to isolate users and their
> > > data/indices.
> > >
> > > I'd look at Bixo or Nutch or Droids ==> Lucene or Solr
> > >
> > > Otis
> > > --
> > > Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch
> > >
> > >
> > >
> > > ----- Original Message ----
> > > > From: Yaniv Ben Yosef
> > > > To: java-user@lucene.apache.org
> > > > Sent: Thu, January 7, 2010 3:54:22 PM
> > > > Subject: Implementing filtering based on multiple fields
> > > >
> > > > Hi,
> > > >
> > > > I'm very new to Lucene. In fact, I'm at the beginning of an
> evaluation
> > > > phase, trying to figure whether Lucene is the right fit for my needs.
> > > > The project I'm involved in requires something similar to the Google
> > > Custom
> > > > Search Engine (CSE). In CSE, each user can
> > > > define a set (could be a large set) of websites, and limit the search
> to
> > > > only those websites. So for example, I can create a CSE that searches
> all
> > > > web pages on cnn.com, msnbc.com and nytimes.com only.
> > > > I am trying to understand whether and how I can do something similar
> in
> > > > Lucene.
> > > >
> > > > The FAQ hints about this possibility
> > > > here,
> > > > but it mentions a class that no longer exists in 3.0 (QueryFilter),
> and
> > > is
> > > > very laconic about the suggested options. Also I'm not sure how well
> it
> > > will
> > > > perform in my use case (or even if it fits at all).
> > > > I thought about creating a separate index for each user or CSE.
> However,
> > > my
> > > > system should be able to handle tens of thousands of concurrent
> users. I
> > > > haven't done any analysis yet on how this will affect CPU, RAM, I/O
> and
> > > > storage size, but was wondering if any of you experienced Lucene
> > > > users/developers think it's a good direction.
> > > > If that's not a good idea, what would be a good strategy here?
> > > >
> > > > Any help will be much appreciated,
> > > > Yaniv
> > >
> > >
> > > ---------------------------------------------------------------------
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> > >
> > >
>
>
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