>Thank you much Fergus, > >I was considering implementing a database which would hold a path name >and an MD5 sum of each file. Snap. That is close to what we did. However due to our pervious duff full text search engine we had to hold this information in a separate checksums file. Solr is much better at allowing you to add extra meta information as the document is being submitted for indexing.
curl http://localhost...update/extract -F "myfi...@file.pdf;ext.literal.id=file.pdg;ext.literal.chksum=XXXXX" >Then as a part of Solr indexing, one could check against the DB if a >file path exists, if Yes, then compare MD5 and only index if different. Using solr you could hold the checksum and pathname as solr fields, then rather than looking up a DB you would look up solr. Having every thing in the one place is better for consistency and quality. You could also dump all checksums and pathnames from solr if/when you wanted to validate your folder structure and or indexes. >Regards, >Veselin K > >On Tue, Apr 07, 2009 at 09:01:31AM +0100, Fergus McMenemie wrote: >> Veselin, >> >> Well, as far as solr is concerned, there is two issues here:- >> >> 1) To stop the same document ending up in the indexes twice, use the document >> pathname as the unique ID. Then if you do index it twice, the previous >> index >> information will be discarded. Not very efficient, but it may be >> tolerable. >> IMHO using pathname as the unique ID is often best practice. >> >> 2) To stop a document even being submitted to solr. You need to implement >> some >> middle ware that either performs a search/lookup using a documents >> pathname >> to see if it is already indexed. Or, after examining timestampts, only >> submits >> documents which have changed since the last folder scan. >> >> Fergus. >> >Hello Paul, >> >I'm indexing with "curl http://localhost... -F myfi...@file.pdf" >> > >> >Regards, >> >Veselin K >> > >> > >> >On Mon, Apr 06, 2009 at 02:56:20PM +0530, Noble Paul ????????????????????? >> >?????????????????? wrote: >> >> how are you indexing? >> >> >> >> On Mon, Apr 6, 2009 at 2:54 PM, Veselin Kantsev >> >> <vese...@campbell-lange.net> wrote: >> >> > Hello, >> >> > apologies for the basic question. >> >> > >> >> > How can I avoid double indexing files? >> >> > >> >> > In case all my files are in one folder which is scanned frequently, is >> >> > there a Solr feature of checking and skipping a file if it has already >> >> > been indexed >> >> > and not changed since? >> >> > >> >> > >> >> > Thank you. >> >> > >> >> > Regards, >> >> > Veselin K >> >> --Noble Paul -- =============================================================== Fergus McMenemie Email:fer...@twig.me.uk Techmore Ltd Phone:(UK) 07721 376021 Unix/Mac/Intranets Analyst Programmer ===============================================================
