Digging in the Solr code: 5 minutes howto
How to quickly debug a custom Apache Solr component (e.g. request handler, query parser, filter) in your favourite IDE.
The example uses IntelliJ but it is valid for any IDE.
Rated Ranking Evaluator: Help the poor (Search Engineer)
What is Search Quality? Why is it so important in a search infrastructure?
Do you need something that gives you the evidence about the direction the search system is going to? RRE is the tool you’re looking for.
Apache Solr: Orchestrating Known item and Full-text search
The Apache Solr Invisible Queries Request Handler
