1 - What is Solr? 2 - Solr Features 3 - Solr Schema 4 - Solr Query

1. Solr - Introduction
Eng. Ismail Enjreny
Solr Expert
ismaeel.enjreny@gmail.com

2. What is Solr?
• http://lucene.apache.org/solr/
• Open Source Search Engine
• Java based
• Build on top of Lucene
• Supported by Apache Community

3. Solr Features
• Advanced Full-Text Search Capabilities
• Optimized for High Volume Web Traffic
• Standards Based Open Interfaces - XML, JSON and HTTP
• Comprehensive HTML Administration Interfaces
• Server statistics exposed over JMX for monitoring
• Linearly scalable, auto index replication, auto failover and recovery
• Near Real-time indexing
• Flexible and Adaptable with XML configuration
• Extensible Plugin Architecture

4. Solr Schema
• Defines the field types and fields of documents
• Dynamic Fields enables on-the-fly addition of new fields
• CopyField functionality allows indexing a single field multiple ways, or
combining multiple fields into a single searchable field
• Explicit types eliminates the need for guessing types of fields
• External file-based configuration of stopword lists, synonym lists, and
protected word lists
• Many additional text analysis components including word splitting, regex
and sounds-like filters
• Pluggable similarity model per field

5. Solr Query
• HTTP interface with configurable response formats (XML/XSLT, JSON,
Python, Ruby, PHP, Velocity, CSV, binary)
• Sort by any number of fields, and by complex functions of numeric fields
• Highlighted context snippets
• Faceted Searching based on unique field values, explicit queries, date
ranges, numeric ranges or pivot
• Multi-Select Faceting by tagging and selectively excluding filters
• Spelling suggestions for user queries
• More Like This suggestions for given document

6. Solr Query …
• Function Query - influence the score by user specified complex functions of
numeric fields or query relevancy scores.
• Range filter over Function Query results
• Date Math - specify dates relative to "NOW" in queries and updates
• Numeric field statistics such as min, max, average, standard deviation
• Combine queries derived from different syntaxes
• Auto-suggest functionality for completing user queries
• Allow configuration of top results for a query, overriding normal scoring and
sorting
• Simple join capability between two document types

7. Examples
• www.cnet.com
• www.twitter.com
• www.facebook.com
• www.whitehouse.gov
• www.netflix.com

8. Demo
• Solr UI
• Index
• Query
• Analyzer

9. Questions?

10. Thanks