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Groovy, A Reasonable JVM Language for DevOps

I’ve worked at several environments where most of our product was run through the JVM. I’ve always used the information available to me in Mbeans, but...

0 replies - 9414 views - 03/06/12 by Geoffrey Papilion in Articles

Scaling Solr Indexing with SolrCloud, Hadoop and Behemoth

We’ve been doing a lot of work at Lucid lately on scaling out Solr, so I thought I would blog about some of the things we’ve been working on recently...

0 replies - 8292 views - 03/06/12 by Grant Ingersoll in Articles

Explain.solr.pl Solr Visualization Tool Open Sourced

As we promised earlier, source code for explain.solr.pl is now published. To refresh Your memory: it is a tool to visualize Solr search results and get the...

0 replies - 3463 views - 03/03/12 by Rafał Kuć in Articles

Exploring the Transactional Semantics of the Lucene API

Many users don't appreciate the transactional semantics of Lucene's APIs and how this can be useful in search applications. For starters, Lucene...

1 replies - 5483 views - 03/02/12 by Michael Mccandless in Articles

Book review of Apache Solr 3 Enterprise Search Server

0 replies - 3260 views - 02/29/12 by Kelvin Tan in Book Reviews

Using Lucene in Grails

Apache Lucene is the leading open source search engine and is used in many businesses, projects and products. Lucene has sub-projects which provide...

0 replies - 7025 views - 02/28/12 by Robin Bramley in Articles

Solr Date Math, NOW and filter queries

Or “How to never re-use cached filter query results even though you meant to”: Filter queries (“fq” clauses) are a means to restrict the number of...

0 replies - 6576 views - 02/27/12 by Erick Erickson in Articles

Measuring Search Quality: Retrieval and Relevance Metrics

I am trying to put together a framework for search quality evaluation for a specialist information provider. At the moment quality is measured by counting the...

1 replies - 2870 views - 02/26/12 by Tony Russell-rose in Articles

Solr Explain 0.9.1 – New version

After a few weeks (counting Christmas, when people don’t usually analyze theirs Solr queries ) we would like to share some thoughts about...

0 replies - 3543 views - 02/25/12 by Rafał Kuć in Articles

Custom Security Filtering in Solr: Based on Access Control Lists

Yonik recently wrote about “Advanced Filter Caching in Solr” where he talked about expensive and custom filters; it was left as an exercise to the...

0 replies - 5360 views - 02/23/12 by Erik Hatcher in Articles

Exploring the Viability of your Search Engine Results Pages

When a user enters in a search query and is taken to a search engine results page, then the probability of clicking on a result is a function of three...

0 replies - 3654 views - 02/22/12 by Jason Hull in Articles

Simple Photo Search with Solr and Tika

Recently we had a change to help with a non-commercial project which included search as its part. One of the assumptions, although not the key ones, was...

1 replies - 4950 views - 02/21/12 by Rafał Kuć in Articles

Why use a Javascript UI for Solr?

Richer presentation.  Deeper data in search results.Search UIs are getting richer and more interesting by the day.  Google page snapshots, animated...

0 replies - 6972 views - 02/20/12 by Matt Overstreet in Articles

Quick Search Reference Manual for Solr

A tweet from Eric Pugh informs us about a recent handy resource he contributed to that you Solr/Lucene users out there should look into.  It's a Solr...

0 replies - 3951 views - 02/18/12 by Mitch Pronschinske in Articles

Indexing with SolrJ

Two popular methods of indexing existing data are the Data Import Handler (DIH) and Tika (Solr Cell)/ExtractingRequestHandler. These can be used to index...

0 replies - 6736 views - 02/15/12 by Erick Erickson in Articles