Discovery Search Engine
3.15
Getting Started
Overview
What is it?
Features
What the engine is not
How do I use it?
Web Interface
Getting data into the engine
Defining the indexes
Performing Queries
International Support
Supported Languages
Case-insensitive Comparisons
Stemming
Time dimension format
Locale Exceptions
Distances and Location Searches
Engine and Data Tool Installation for UNIX Variants
Hardware Requirements
Software Requirements
Recommended Installation Directory Hierarchy
Archives Directory
Releases Directory
Engines Directory
Recommended Installation Example
Shell Script Configuration Variables
Discovery.properties File
Datatool.properties and discovery_datatool.xml Files
Developer Mode - Starting and Stopping
Create a user to run the Discovery Components
Extract the Release Archive
Configure and Start Engine
Starting the Discovery Engine and/or Discovery Data Tool At System Startup (init.d)
Startup with Multiple Engine or Data Tool Instances
Starting the Discovery Engine or Data Tool At System Startup (chkconfig)
Data Tool Log Files
Engine Log Files
Engine Settings File
Working with the Engine
Upgrading an Engine for UNIX Variants
General Upgrade Procedure
Admin Tool Interface
Status Page
Changesets Page
Import/Export
Dimensions Page
Import/Export
Indices Page
Feeds
Dimension, Changeset, Feed & Checkpoints Configuration
Dimensions
Changesets
Checkpoints
Settings
Import/Export Settings
Engine Preferences
Item Cache
Startup Options
Applications
JSON
Engine Configuration Scenarios
Single Engine
Data Distribution
Data Master Configuration
Data Slave Configuration
Monitoring Options
Admin Tool
Discovery Log File
System State Web Service
Munin plugin
Tutorial
Tutorial
Overview
Installation
Import Data
Define indexes
Performing Queries
Simple Searches
Faceted Search
Administration
Web-based Administration
Example files
changeset
dimensions
Data Integration
Integrating
Install dependencies and the engine
Create a changeset publisher
Create the dimension definition
Integrate queries into your application
Monitor the engine
Changesets
Getting changesets to the engine
Validating and pushing an initial changeset to the engine
Changeset document structure
Data Tool
Summary
Optional URL Parameters
Configuration
accessControl
DataSources
Profiles
Publishers
SSL
Create the RSA key, Certificate and Java Key Store
Configuration options in
datatool.properties
How-To: Bringing it All Together
Design the Data Integration
Tracking deletes
A note about identifiers
Let’s write some SQL
Testing with the Discovery Data Tool and the Discovery Engine
Some things that we recommend testing
Logging
Changeset Publisher
Summary
De-normalized views
Changeset publisher
Configuring feeds
Custom Changeset Publisher
Dimensions
Overview
Importing a Dimension Definition to an Engine
Exporting a Dimension Definition to an Engine
Dimensions.xml
Dimensions Element
Dimension Element
Element Element
Field Element
Dimension Types
Ordered Type
Ordered Element XML Element
Tree Type
Mutex Type
Keyword Type
Integer Type (Scalar)
Double Type (Scalar)
Time Type (Scalar)
Geoloc Type
Text Type
Group By Type
Scalar Features
Min/Max Values
Ranges
Faceting
Example Dimension Definition XML
Defining Word Sets
Creating Merged Word Sets
Variant 1: Inline Word Set with Dimension
Variant 2: Word Set Reference with Dimension
Variant 3: Multiple Word Set References with Dimension
Variant 4: Word Sets Referring to Wordsets with Dimension
Defining Synonyms/Thesauruses
Creating Merged Synonym Dictionaries
Variant 1: Synonym Dictionary Reference with Dimension
Variant 2: Multiple Synonym Dictionary References with Dimension
Variant 3: Synonym Dictionaries Referring to Thesauruses with Dimension
Query API
Overview
JSON
Query Request
Top Level Request Fields
Search Criterion
integer, double, time
geoloc
builtin
text
Field Boosts
Nested Queries
Facets Criterion
Drilldown Criterion
Geographic Polygons
Highlighting Criterion
DidYouMean Criterion
Did You Mean? Highlighting Criterion
indexValues Criterion
Calculate Criterion
Values Criterion
Sort By Criterion
Group By Criterion
Explain
Render Parameters
Query Response
Top Level Response Fields
Response Example
facets Response
facets data Response
facets data bounds Response
drillDown
Properties
Highlighting
Index Values
Calculate
Values
sortBy Response
DidYouMean
Groups
Explain
renderParmeters
Examples
Querying geoloc dimensions
exactDistance
normalDistance
cullDistance
Querying mutex dimensions
Querying tree dimensions
Weight
Querying with drill down counts
Rendering parameters
Reference
Query Parameters Quick Reference
Top level
Criteria
DrillDown
SortBy
Highlighting
GroupBy
Dimension Type Attributes Quick Reference
Geoloc
keyword
tree, ordered, mutex
text
integer, long, double
time
groupBy
random
About Text Dimensions
Analysis
Tokenization
Word Delimiter Tokenizer (wordDelimiter)
Standard Tokenizer (standard)
Whitespace Tokenizer (whitespace)
Smart Chinese Tokenizer (smartcn)
Query Parsers
Starts With Queries
Accented Characters
Stop Words
Default Stop Word Lists for Supported Languages
Stemming
Phonetic Analysis
Soundex
Refined Soundex
Metaphone
Double Metaphone
Word Sets
Synonyms & Thesauruses
Did You Mean? and Spelling Correction
Web Services
Changesets
Listing Stored Changesets
Exporting a Stored Changeset
Apply/Store Changeset
Dimensions
Export the Dimensions Document
Post a new Dimensions Document
Item
Parameters
Example Request
Example Response
DidYouMean
Parameters
Example Request
Example Response
Items
Parameters (GET)
Example Request (GET)
Example Request (POST)
Example Response (POST and GET)
Statistics
Example Usage
Field details
Checkpoint
Example Usage
Queryable
Optional URL Parameters
Example Usage
System State
Example Response
discovery.properties Reference
Basic Configuration Options
port
jvm.memory
jvm.args
total-partitions
Discovery Script Command Line Options
start
stop
status
restart
kill
threads
Locale Specs
Interval Notation
Example Real Estate Dataset
Download
Changelog
3.15 (August 27 2014)
Improvements
Bug Fixes
3.14 (August 4 2014)
Improvements
Bug Fixes
Compatibility Changes
Removed features
3.13 (June 12 2014)
Improvements
Bug Fixes
Compatibility Changes
Removed features
3.12 (December 18 2013)
Improvements
Bug Fixes
Compatibility Changes
Removed features
3.11 (September 3 2013)
Improvements
Documentation
Compatibility Changes
Removed features
3.10 (March 11 2013)
Improvements
Compatibility
3.9 (November 20 2012)
Improvements
3.8.4 (September 25 2012)
ENGINE-808 Improves performance when using facet and groupBy features at the same time
3.8.3.1 (May 8 2013)
Bug Fixes
3.8.3 (September 5 2012)
Bug Fixes
3.8.2 (August 10 2012)
Behavioral Changes
Bug Fixes
3.8.1 (August 7 2012)
Bug Fixes
3.8 (August 2 2012)
New Features
Improvements
3.7.4 (June 29 2012)
New Features
Improvements
Behavioral Changes
Bug Fixes
3.7.3 (June 19 2012)
Improvements
Bug Fixes
3.7.2 (June 19 2012)
Improvements
3.7.1 (June 7 2012)
Bug Fixes
3.7.0 (June 6 2012)
New Features
Improvements
Behavioral Changes
Bug Fixes
3.6.1 (March 12 2012)
3.6.0 (February 15 2012)
Improvements
Behavioral Changes
Obsolete Features
3.5.1 (Janurary 30 2012)
Improvements
Bug Fixes
3.5.0 (Janurary 11 2012)
Improvements
Bug Fixes
3.4.0 (December 16 2011)
Improvements
Bug Fixes
3.3.0 (October 21 2011)
New Features
Improvements
Behavioral Changes
Obsolete Features
Bug Fixes
3.2.0 (August 1 2011)
New Features
Improvements
Behavioral Changes
Bug Fixes
3.1.0 (June 29 2011)
New Features
Improvements
Behavioral Changes
Bug Fixes
3.0.0 (May 19 2011)
New Features
Improvements
2.9.1 (May 2 2011)
New Features
Behavioral Changes
2.9.0 (April 28 2011)
New Features
Behavioral Changes
Bug Fixes
2.8.7 (February 11 2011)
Enhancements
Bug Fixes
2.8.6 (February 2 2011)
New Features
Enhancements
Behavioral Changes
Bug Fixes
2.8.5 (December 29 2010)
New Features
Enhancements
Behavioral Changes
Bug Fixes
2.8.4 (November 29 2010)
New Features
Improvements
Bug Fixes
2.8.3 (November 9 2010)
New Features
Improvements
Bug Fixes
2.8.2 (September 14 2010)
New Features
Bug Fixes
2.8.1 (September 1 2010)
New Features
Improvements
Deprecated Features
Bug Fixes
2.7.1 (July 20 2010)
Improvements
2.7.0 (July 1 2010)
Bug Fixes
Improvements
Improvements
New Features
Discovery Search Engine
3.15
Docs
»
Tutorial
Tutorial
ΒΆ
Tutorial
Overview
Installation
Import Data
Define indexes
Performing Queries
Simple Searches
price is similar to 20
price is less than or equal to 9, cheapest first
Faceted Search
facet search on price
price is less than or equal to 9, cheapest first, drill down on tags
Administration
Web-based Administration
Status page
Changesets
Dimensions
Indices
Admin
Example files
changeset
dimensions