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Posted to java-user@lucene.apache.org by Yukun Song <yu...@mooter.com> on 2004/04/27 02:35:10 UTC
need info for database based Lucene but not flat file
As known, currently Lucene uses flat file to store information for
indexing.
Any people has idea or resources for combining database (Like MySQL or
PostreSQL) and Lucene instead of current flat index file formats?
Regards,
Yukun Song
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Re: need info for database based Lucene but not flat file
Posted by Erik Hatcher <er...@ehatchersolutions.com>.
There is a Berkeley DB implementation of Lucene's Directory in the
jakarta-lucene-sandbox repository.
Erik
On Apr 26, 2004, at 8:35 PM, Yukun Song wrote:
> As known, currently Lucene uses flat file to store information for
> indexing.
>
> Any people has idea or resources for combining database (Like MySQL or
> PostreSQL) and Lucene instead of current flat index file formats?
>
> Regards,
>
> Yukun Song
>
>
>
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> To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: lucene-user-help@jakarta.apache.org
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Re: need info for database based Lucene but not flat file
Posted by Incze Lajos <in...@mail.matav.hu>.
On Tue, Apr 27, 2004 at 02:46:22PM -0700, Doug Cutting wrote:
> Incze Lajos wrote:
> >Could anybody summarize what would be the technical pros/cons of a DB-based
> >directory over the flat files? (What I see at the moment is that for some
> >- significant? - perfomence penalty you'll get an index available over the
> >network for multiple lucene engines -- if I'm right.)
>
> http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-user@jakarta.apache.org&msgId=1344168
>
> Doug
Thanks.
incze
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Re: need info for database based Lucene but not flat file
Posted by Doug Cutting <cu...@apache.org>.
Incze Lajos wrote:
> Could anybody summarize what would be the technical pros/cons of a DB-based
> directory over the flat files? (What I see at the moment is that for some
> - significant? - perfomence penalty you'll get an index available over the
> network for multiple lucene engines -- if I'm right.)
http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-user@jakarta.apache.org&msgId=1344168
Doug
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Re: need info for database based Lucene but not flat file
Posted by Incze Lajos <in...@mail.matav.hu>.
On Tue, Apr 27, 2004 at 09:15:05AM -0700, Doug Cutting wrote:
> Yukun Song wrote:
> >As known, currently Lucene uses flat file to store information for
> >indexing.
> >
> >Any people has idea or resources for combining database (Like MySQL or
> >PostreSQL) and Lucene instead of current flat index file formats?
>
> A few folks have implemented an SQL-based Lucene Directory, but none has
> yet been contributed to Lucene. Hopefully one will be soon.
>
> For some discussion of this, see messages on SQLDirectory in the mail
> archives:
>
> http://nagoya.apache.org/eyebrowse/SearchList?listId=&listName=lucene-user%40jakarta.apache.org&searchText=SQLDirectory&defaultField=subject&Search=Search
>
> Doug
Could anybody summarize what would be the technical pros/cons of a DB-based
directory over the flat files? (What I see at the moment is that for some
- significant? - perfomence penalty you'll get an index available over the
network for multiple lucene engines -- if I'm right.)
incze
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Re: need info for database based Lucene but not flat file
Posted by Doug Cutting <cu...@apache.org>.
Yukun Song wrote:
> As known, currently Lucene uses flat file to store information for
> indexing.
>
> Any people has idea or resources for combining database (Like MySQL or
> PostreSQL) and Lucene instead of current flat index file formats?
A few folks have implemented an SQL-based Lucene Directory, but none has
yet been contributed to Lucene. Hopefully one will be soon.
For some discussion of this, see messages on SQLDirectory in the mail
archives:
http://nagoya.apache.org/eyebrowse/SearchList?listId=&listName=lucene-user%40jakarta.apache.org&searchText=SQLDirectory&defaultField=subject&Search=Search
Doug
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