Ironically, that's what I'm doing already. :-) I have an external
application ensuring that only unique documents are indexed by creating a
BerkleyDB on disk made up of MD5 checksums that point to the absolute path
of the document indexed. It works fairly well. Obviously, my only complaint
is that I have to operate in parallel on both the external database and the
SWISH-E database. However, this way solves a unique problem that occurs if
the database was stored internally in SWISH-E ... I can have unique
documents across multiple indexes.
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> -----Original Message-----
> From: email@example.com
> [mailto:firstname.lastname@example.org] On Behalf Of
> Sent: Monday, February 23, 2004 2:33 AM
> To: Multiple recipients of list
> Subject: [SWISH-E] Re: Incremental Mode
> >On Fri, Feb 20, 2004 at 07:01:06AM -0800, Ander wrote:
> >> I've been using incremental indexing mode, and I didn't had any
> >> problem.
> >> works fine on my machines.
> >> It bases on files modification date for local files, but
> I'm not sure
> >> it
> >> modified "remote" files (web files).
> >Not that's not exactly correct.
> >-u only adds files to an existing index. I suspect if you did:
> > swish-e -i foo.html # creates new index
> > swish-e -u -i foo.html # add foo.html to existing index
> >that foo.html would be in the index twice.
> We could catch the content or calculate a MD5 checksum to
> control which are the "modified" files, isn't it right?
> We can create an BerkeleyDB hash to store the checksums of
> dinamic web pages we want to index, and use the
> filter_content feature of spider.pl to decide which are the
> files to index.
> What do you think?
> >To use incremental indexing you have to build swish-e
> differently (with
> >--enable-incremental option). This uses a different index format
> >(Btree instead of a hash-based index) and is not compatible
> with other
> >Btree) indexes.
> >There's currently no way to update an index (i.e. say if an existing
> >file is updated). This type of incremental indexing might be useful
> >for something like a mailing list where the index just gets added to
> >(old messages don't changed).
> >You can use other methods (like -D) to only pass to swish-e the new
> >files to be added to an existing index.
> >Bill Moseley
> Txat euskalduna >>> http://www.euskalerria.org/solasgunea
Received on Mon Feb 23 06:53:01 2004