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< Infrastructure

Revision as of 16:01, 21 October 2009 by Akistler (talk | contribs) (Software Investigation and Evaluation: Moved C/C++ to "In Progress"; Moved "not maintained" to "Not Suitable")

Infrastructure InfrastructureTeamN1.png

Points of Contact

Project Sponsor

Name: Mike McGrath
Fedora Account Name: mmcgrath
Group: Infrastructure
Infrastructure Sponsor: mmcgrath

Secondary Contact info

Name: Huzaifa Sidhpurwala
Fedora Account Name: huzaifas
Group: Infrastructure

Name: Allen Kistler
Fedora Account Name: akistler
Group: Infrastructure

Name: Keiran Smith
Fedora Account Name: affix
Group: Infrastructure

Project Info

Project Name: Search Engine Enhancement
Target Audience: All users of Fedora web sites
Expiration/Delivery Date (required): F13


Fedora needs a search engine[1]


  • Crawl the web sites (wiki and non-wiki)
  • Search the web sites (wiki and non-wiki)


  • Python-based (no Java)
  • Programmable keywords to have control over what pages get displayed for certain keywords
  • XML or library interface so other applications can use it

Project Plan

  1. Investigate and evaluate existing open source search engines
  2. Select candidate software
  3. Create public test instance of candidate software
  4. Test for functionality, performance, and impact (re-evaluate, if necessary)
  5. Create capacity and deployment plans
  6. Deploy

Resources Needed

  • Public Test for testing candidate software
  • Permanent home(s) for deployment
    • Web server(s)
    • Database server(s)

Software Investigation and Evaluation

In Progress

  • DataparkSearch [2]
written in C
written in C/C++
written in C++
  • KinoSearch [5] - Allen investigating
Perl port of Lucene
  • mnoGoSearch [6]
written in C
  • Namazu [7] - Huzaifa investigating
written in Perl
written in C
Swish++ is a rewrite in C++
written in C++
written in C
written in C

Not Suitable

written in Java
written in C#
  • written in Java
  • archives content rather than simply indexing it
  • written in C++
  • not actively maintained
It's just a MediaWiki plugin, not suitable for searching non-wiki sites
written in Java, but ported to others [18]
  • Requires EzMwLucene (Java, not desirable) to be running on the servers to be searched
  • EzMwLucene is wiki-only, therefore MWSearch is wiki-only
  • written in Java
  • based on Lucene
  • written in Perl or TCL on top of PostgreSQL
  • Python interface available
  • not actively maintained
  • Perl port of Lucene
  • not actively maintained
  • RigorousSearch [23]
Crawls the MediaWiki database, not the web site
Doesn't work for non-MediaWiki web sites, including any non-wiki web site
written in C++
designed to index SQL tables, not web pages.
Written in C++
Wiki-only (?)
  • Terrier (TERabyte RetrIEveR) [26]
written in Java

Public Testing


Deployment Plan



  1. "Fedora Search Engine". Infrastructure/Tickets. 
  2. "DataparkSearch". DataparkSearch. 
  3. "Indri". The Lemur Project. 
  4. "Isearch". Isite. 
  5. "KinoSearch". Rectangular Research. 
  6. "mnoGoSearch". LavTech. 
  7. "Namazu". Namazu Project. 
  8. "Swish-e". Swish-e. 
  9. "Xapian". Xapian Project. 
  10. "YaCy". Karlsruhe Institute of Technology. 
  11. "Zettair". Search Engine Group, Royal Melbourne Institute of Technology. 
  12. "Egothor". Egothor. 
  13. "Grub". Wikia, Inc.. 
  14. "Heritrix". Internet Archive. 
  15. "ht://Dig". The ht://Dig Group. 
  16. "HtdigSearch Extension". MediaWiki. 
  17. "Lucene". Apache Software Foundation. 
  18. "Lucene Implementations". Apache Software Foundation. 
  19. "MWSearch Extension". MediaWiki. 
  20. "Nutch". Apache Software Foundation. 
  21. "OpenFTS". SourceForge. 
  22. "Plucene". CPAN. 
  23. "RigorousSearch Extension". MediaWiki. 
  24. "Sphinx". Sphinx Technologies. 
  25. "SphinxSearch Extension". MediaWiki. 
  26. "Terrier". Terrier Project.