Web Archive Discovery

Indexing and discovery tools for web archives.
Homepage:	https://github.com/ukwa/webarchive-discovery
License:	Mixed
Platforms:	Java
Function:	Metadata Extraction,File Format Identification,Content Profiling,Discovery
Content type:	Web

Description

Full-text indexing system, using Apache Solr as the search back-end. Supports command-line or large-scale map-reduce (Hadoop) processing of ARC and WARC files. Also integrates file format analysis and scans for some known preservation risks.

It runs format identification using both Apache Tika and DROID, and also extracts filename extensions and the first few bytes of each resource, to enable analysis of formats unknown to those tools.

If can also be configured to use Apache PDFBox's Preflight tool to scan PDF's for PDF/A violations, and record them in the index for analysis.

It also records any parsing errors or other access problems it discovers, which can help find problematic resources.

For more information, see the Features page of the tool's wiki.

User Experiences

• Used by the UK Web Archive to provide access to their collections. Some details in this blog post. Feel free to contact @UKWebArchive for more information.
• Also used by a number of other web archives, and by the WARCLight project.

Development Activity

All development activity is visible on GitHub: http://github.com/ukwa/webarchive-discovery

There is also a #webarchive-discovery channel on the IIPC Slack service. Contact https://twitter.com/NetPreserve for details.

Release Feed

Below the last 3 release feeds:

2024-04-02 09:25:58

[tag:github.com,2008:Repository/7257232/warc-discovery-3.3.1 Revert of source_file_path]

by GilHoggarth

2023-06-02 11:04:22

[tag:github.com,2008:Repository/7257232/warc-discovery-3.3.0 warc-discovery-3.3.0]

by anjackson

2020-11-27 12:25:29

[tag:github.com,2008:Repository/7257232/warc-discovery-3.1.0 warc-discovery-3.1.0]

by anjackson

Activity Feed

Below the last 5 commits:

2025-03-11 12:48:48

[tag:github.com,2008:Grit::Commit/4898ed804b3edaa3bdff84f46b2d1d3b71325660 Merge pull request #320 from bnfleb/issue-319]

by GilHoggarth https://github.com/GilHoggarth

2025-03-06 17:20:01

[tag:github.com,2008:Grit::Commit/f6750aa0bdf608d3137ec64818135f763b06d316 Remove default value for disable-commit CL parameter for issue #319]

by bnfleb https://github.com/bnfleb

2024-08-09 10:57:54

[tag:github.com,2008:Grit::Commit/40ce1635f79b8d9d13f3fa2a1577f0ca46aa8404 Merge pull request #318 from lasztoth/langid-language-analyser]

by GilHoggarth https://github.com/GilHoggarth

2024-08-09 10:36:40

[tag:github.com,2008:Grit::Commit/380afa66e0d45e569f0dd2971c1a8039daa90402 Added correct version of artifact]

by KGX747@MC212515.gouv.etat.lu

2024-08-09 10:08:55

[tag:github.com,2008:Grit::Commit/170c8dfb3543159065af792cf226e2ea1726c852 Update LanguageAnalyser.java]

by GilHoggarth https://github.com/GilHoggarth