Infrastructure/Search

File:Infrastructure InfrastructureTeamN1.png

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 (Detailed):

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

Specific resources needed

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

Software Investigation and Evaluation

• HtdigSearch

Huzaifa (in progress)

• SphinxSearch

Huzaifa (in progress)

• MWSearch

Not suitable

• MWSearch requires EzMwLucene to be running on the servers to be searched. EzMwLucene is Java, therefore not preferable.
• MWSearch is a client to EzMwLucene, which is wiki-only, therefore MWSearch is wiki-only.

• RigorousSearch

Not suitable

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

• DataparkSearch

written in C

• Egothor

written in Java

• Gonzui (specializes in source code search)

• ? written in Ruby
• ? not actively maintained

• Grub

? written in C#

• Ht://dig

• written in C++
• not actively maintained

• Isearch

written in C++

• Lucene

• originally in Java, ported to others
• Perl ports are Plucene and KinoSearch
• Ruby port is Ferret
• see http://wiki.apache.org/lucene-java/LuceneImplementations

• Lemur Toolkit & Indri Search Engine

• written in C/C++
• not really a search engine, more like a toolkit

• mnoGoSearch

written in C

• Namazu

written in Perl

• Nutch

• written in Java
• based on Lucene

• OpenFTS

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

• Sciencenet (for scientific knowledge, based on YaCy technology)

written in Java

• Sphinx

written in C++

• SWISH-E

written in C

• Terrier Search Engine

written in Java

• Wikia Search

shut down

• Xapian

written in C++

• YaCy

written in C

• Zettair

written in C

Public Testing

<tbd>

Deployment Plan

<tbd>