ApacheCon Europe 2012

Rhein-Neckar-Arena, Sinsheim, Germany

5–8 November 2012

A Web Search Appliance with Solr and YaCy

Michael Christen

Audience level:
Lucene, Solr & Friends

Thursday 12:30 p.m.–1:15 p.m. in Level 1 Right


Solr was embedded into YaCy, a free web search software including a crawler, parsers, monitoring and steering functions. This gives the Solr community a rich-featured web search framework. The talk shows web-search use-cases and the opportunity to replace commercial search appliances easily with Solr.


To use Solr as web search engine you also need a web crawler, document parsers, an appropriate Solr scheme, monitoring, production steering, use-case oriented index administration and a end-user search interface design. The free software "YaCy", once designed as turn-key, easy-to-use peer-to-peer web search software is now based on Solr. To provide a standard-compliant API to Web-Search Appliance integrators, YaCy also extends the Solr search interface with an Opensearch/RSS and a Google GSA/XML result writer.

The talk shows use-cases and productivity features in professional environments. We believe that the YaCy/Solr combination is a potential serious rival to other fully-integrated commercial search appliances. Beside this important use case we propagate also the personal usage of privately defined search portals to support the free software philosophy for open data and against censoring. The talk will give examples for such use-cases as well.