Infrastructure/Search

File: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

Description/Summary

Fedora needs a search engine

Requirements

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

Preferences

• 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

• HtdigSearch

Huzaifa investigating

• KinoSearch

Perl port of Lucene

• Namazu

written in Perl

• OpenFTS

• written in Perl or TCL on top of PostgreSQL
• Python interface available
• not actively maintained

• Plucene

• Perl port of Lucene
• not actively maintained

• SphinxSearch

Huzaifa investigating

Not Suitable

• DataparkSearch

written in C

• Egothor

written in Java

• Grub

written in C#

• ht://dig

• written in C++
• not actively maintained

• Indri

written in C/C++

• Isearch

written in C++

• Lucene

• originally in Java, ported to others
• Perl ports are Plucene and KinoSearch; Ruby port is Ferret
• see Lucene Implementations

• mnoGoSearch

written in C

• MWSearch

• Requires EzMwLucene (Java, not desirable) to be running on the servers to be searched
• EzMwLucene is wiki-only, therefore MWSearch is wiki-only

• Nutch

• written in Java
• based on Lucene

• RigorousSearch

Crawls the MediaWiki database, not the web site. It doesn't work for non-MediaWiki web sites, including any non-wiki web site.

• Sphinx

written in C++

• Swish-e

written in C

Swish++ is a rewrite in C++

• Terrier (TERabyte RetrIEveR)

written in Java

• Xapian

written in C++

• YaCy

written in C

• Zettair

written in C

Public Testing

<tbd>

Deployment Plan

<tbd>