1. Solr, proper, does not index "files". An adjunct called Solr Cel can. See http://wiki.apache.org/solr/ExtractingRequestHandler . That article describes which kinds of files it Solr Cel can handle.
2. I have no idea what you mean by "incidents per year". Please explain. 3. Even though you didn't ask: You are apparently a student at an advanced level. At your level I would guess that your professors expect *YOU* to read thru the material available on the Internet on Solr and figure it out on your own, rather than just asking others to do your work for you. ;^) In particular, before asking further questions you should probably read thru http://wiki.apache.org/solr/FrontPage and http://lucene.apache.org/solr/tutorial.html . JRJ -----Original Message----- From: Dan Wu [mailto:wudan1...@gmail.com] Sent: Monday, October 24, 2011 12:43 PM To: solr-user@lucene.apache.org Subject: some basic information on Solr Hi all, I am doing a student project on search engine research. Right now I have some basic questions about Slor. 1. How many types of data file Solr can support (estimate)? i.e. No. of file types solr can look at for indexing and searching. 2. How much is estimated cost of incidents per year for Solr ? Since the numbers could vary from different platforms, however we would like to know the estimate answers regarding the general cases. Thanks -- Dan Wu (Fiona Wu) 武丹 Master of Engineering Management Program Degree Candidate Duke University, North Carolina, USA Email: dan...@duke.edu Tel: 919-599-2730