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      Products

      • Fusion Server 4.2
      • Fusion AI 4.2
      • Fusion App Studio 4.2
      • Fusion Server 4.1
      • Fusion AI 4.1
      • Fusion App Studio 4.1
      • Fusion Server 4.0
      • Fusion AI 4.0
      • Fusion App Studio 4.0
      • Lucidworks Cloud
      • Fusion 3.1
      • Fusion 3.0
      • LucidWorks HDP Search
      • LWS
      • Solr Modules

      Getting Started  (PDF)

      • How Fusion Works
        • Fusion Concepts and Components
        • Getting Data In
        • Getting Data Out
        • Building applications
      • Fusion UI
        • Working with Apps
        • Index Workbench
        • Query Workbench
        • Object Explorer
      • Quickstart
      • Tutorials
        • Get Started with Fusion Server
          • Part 1 - Run Fusion and Create an App
          • Part 2 - Get Data In
          • Part 3 - Get Data Out
          • Part 4 - Improve Relevancy
      • Additional Resources

      Deployment Guide  (PDF)

      • System Requirements
      • Deployment Types
      • New Installation
        • Install Fusion on a Single Node
        • Install a Fusion Cluster (Introduction)
        • Install a Fusion Cluster (Unix)
        • Install a Fusion Cluster (Windows)
        • Integrate Fusion with an Existing Solr Deployment
        • Troubleshoot Installation
      • Start and Stop Fusion
      • Directories, Files, and Ports
      • Licensing
      • Upgrade Fusion
        • Upgrade Fusion 3.1.x to 4.2.y
        • Upgrade Fusion 4.0.x to 4.2.y
        • Upgrade Fusion 4.1.x to 4.2.y
        • Troubleshoot Upgrades
      • Add or Move Fusion Nodes
      • Migrate Fusion Objects

      Search Development Guide  (PDF)

      • Getting Data In
        • Connectors
          • Managing Connectors
          • Remote Connectors
          • Developing Custom Connectors
            • Java Connector Development
            • Connectors Security
            • The Random Content Connector
        • Collection Management
          • Collection Management in the Fusion UI
          • Time-Based Partitioning
        • Datasource Configuration
          • Index Pipeline Configuration
            • Index Pipelines
            • Index Profiles
            • Index Pipeline Stages
            • Custom Javascript Indexing Stages
        • Other Ingestion Methods
          • Import Data with the Parallel Bulk Loader
          • Import Data with Hive
          • Import Data with Pig
          • Import Data with the REST API
        • Blob Storage
      • Getting Data Out
        • Query Pipeline Configuration
          • Query Pipelines
          • Query Pipeline Stages
          • Query Profiles
          • Custom Javascript Query Stages
        • Stored Parameters Collection
        • Application Development
          • Autocomplete
          • Faceting
          • Stopwords
          • Synonyms
        • Query Language Cheat Sheet
      • App Management
      • Application Configuration Template Expressions

      System Administration Guide  (PDF)

      • Starting and stopping
      • Licensing
      • The DevOps Center
      • System Usage Monitor
      • System Administration with the Fusion UI
      • Jobs
        • Datasource Jobs
        • Tasks
        • Spark Jobs
      • Security
        • SSL security (Unix)
        • SSL security (Windows)
        • Changing a password
        • Access control
          • Security Realms
          • Configure Fusion for JWT
          • Configure Fusion for Kerberos
          • Configure Fusion for LDAP
          • Configure Fusion for SAML
          • Configure Fusion for SSO
          • Permissions
          • Roles
          • Secure Communication with a SolrCloud Cluster
          • User Access Request Params
          • Users
      • Fusion SQL Service
      • Spark Administration
        • Spark Components
        • Spark Getting Started
        • Spark Driver Processes
        • Spark Configuration
        • Scaling Spark Aggregations
        • Spark Troubleshooting
      • Monitoring
        • Checking System State
        • System Metrics
        • Messaging Services
      • Dashboards
        • Create Dashboards
        • Use Dashboards
        • Manage Dashboards
        • Input Panels
        • Display Panels

      Reference Guides  (PDF)

      • Language Support
      • Connectors
        • Web
        • Database
          • Couchbase
          • JDBC
          • MongoDB
        • Filesystem
          • Local Filesystem
          • Box.com
          • Dropbox
          • File Upload
          • FTP
          • Google Drive
          • HDFS
          • OneDrive
          • S3
          • SolrXML
          • Windows Share (deprecated)
          • Windows Share SMB2/3
        • Hadoop Cluster
          • Apache Hadoop 2
          • Cloudera
          • Hortonworks
          • MapR
        • JavaScript
        • Repository
          • Alfresco
          • Azure
          • Confluence
          • Drupal 7.x
          • GitHub
          • JIRA
          • Salesforce
          • ServiceNow
          • SharePoint
          • SharePoint Online
          • Sitecore
          • Solr
          • Subversion
          • Zendesk
        • Social Media
          • Jive
          • Slack
          • Twitter Search (deprecated)
          • Twitter Stream (deprecated)
      • Parsers
        • Apache Tika Parser
        • Archive Parser
        • CSV Parser
        • Fallback Parser
        • HTML Parser
        • JSON Parser
        • Solr Update Parser
        • Text Parser
        • XML Parser
      • Index Pipeline Stages
        • Apache Tika Parser
        • Call Pipeline
        • Date Parsing
        • Detect Language
        • Detect Sentences
        • Exclude Documents
        • Exclusion Filter
        • Field Mapping
        • Field Parser
        • Filter Short Fields
        • Find and Replace
        • Format Signals
        • Gazetteer Lookup Extraction
        • GeoIP Lookup
        • Include Documents
        • Javascript
        • JDBC
        • Logging
        • Machine Learning
        • NLP Annotator
        • OpenNLP NER Extraction
        • Regex Field Extraction
        • Regex Field Filter
        • Regex Field Replacement
        • Resolve Multivalued Fields
        • REST Query
        • Send PagerDuty Message
        • Send Slack Message
        • Send SMTP Email
        • Set Property
        • Solr Dynamic Field Mapping
        • Solr Indexer
        • Solr Partial Update Indexer
        • Tag Part-of-Speech
        • Update Experiment
        • Update Related Document
        • Write Log Message
        • XML Transformation
      • Query Pipeline Stages
        • Active Directory Security Trimming
        • Additional Query Parameters
        • Analytics Catalog
        • Apply Rules
        • Block Documents
        • Boost Documents
        • Boost with Signals
        • Call Pipeline
        • Experiment
        • Facets
        • JavaScript
        • JDBC Lookup
        • Landing Pages
        • Learning to Rank
        • Logging
        • Machine Learning
        • Machine Learning (Responses)
        • Merge Async Results
        • Modify Response with Rules Stage
        • NLP Annotator
        • Parameterized Boosting
        • Parameterized Faceting
        • Query Fields
        • Recommend Items for Item
        • Recommend Items for User
        • Response Document Exclusion Stage
        • Response Document Field Redaction Stage
        • Response Pairwise Swap
        • Response Shuffle Stage
        • REST Query
        • Retrieve Stored Parameters
        • Return Query Parameters
        • Rollup Aggregation
        • Security Trimming
        • Send PagerDuty Message
        • Send SMTP Email
        • Send Slack Message
        • Solr Query
        • Solr Subquery
        • Text Tagger
        • Write Log Message
      • Jobs
        • Aggregation Jobs
        • Custom Spark Jobs
        • Log Cleanup Jobs
        • REST Call Jobs
        • Script Jobs
      • REST API Reference
        • Apps API
        • Authentication and Authorization APIs
          • Realms API
          • Roles API
          • Sessions API
          • User API
        • Blob Store API
        • Catalog API
        • Collections API
        • Collection Features API
        • Connector APIs
          • Connector Datasources API
          • Connector History API
          • Connector Jobs API
          • Connector Plugins API
          • Connector Status API
          • Connectors Crawl Database API
        • Custom Rules API
        • Groups API
        • Index API
        • Index Pipelines API
        • Index Stages API
        • Index Profiles API
        • Jobs API
        • License API
        • Links API
        • Messaging API
        • Objects API
        • Parsers API
        • Query API
        • Query Pipelines API
        • Query Profiles API
        • Query Rewrite API
        • Query Stages API
        • Recommendations API
        • Scheduler API
        • Search Cluster API
        • Signals API
        • Solr API
        • SolrAdmin API
        • Solr Configuration API
        • Spark Jobs API
        • Stopwords API
        • Synonyms Editor API
        • System Admin APIs
          • Configurations API
          • History API
          • Nodes API
          • System API
          • Usage API
        • Tasks API
        • Taxonomy API
        • Webapps API
        • Webapps Admin API
        • Webapps Appkit API
        • ZooKeeper Import/Export API
      • Search Engine and Data Store
        • About This Guide
        • Deployment and Operations
          • Solr Control Script Reference
          • Solr Configuration Files
          • Taking Solr to Production
          • Making and Restoring Backups
          • Running Solr on HDFS
          • SolrCloud on AWS EC2
          • Upgrading a Solr Cluster
            • IndexUpgrader Tool
          • Solr Upgrade Notes
            • Major Changes in Solr 7
            • Major Changes from Solr 5 to Solr 6
        • Using the Solr Administration User Interface
          • Overview of the Solr Admin UI
          • Getting Assistance
          • Logging
          • Cloud Screens
          • Collections / Core Admin
          • Java Properties
          • Thread Dump
          • Suggestions Screen
          • Collection-Specific Tools
            • Analysis Screen
            • Dataimport Screen
            • Documents Screen
            • Files Screen
            • Query Screen
            • Stream Screen
            • Schema Browser Screen
          • Core-Specific Tools
            • Ping
            • Plugins & Stats Screen
            • Replication Screen
            • Segments Info
        • Documents, Fields, and Schema Design
          • Overview of Documents, Fields, and Schema Design
          • Solr Field Types
            • Field Type Definitions and Properties
            • Field Types Included with Solr
            • Working with Currencies and Exchange Rates
            • Working with Dates
            • Working with Enum Fields
            • Working with External Files and Processes
            • Field Properties by Use Case
          • Defining Fields
          • Copying Fields
          • Dynamic Fields
          • Other Schema Elements
          • Schema API
          • Putting the Pieces Together
          • DocValues
          • Schemaless Mode
        • Understanding Analyzers, Tokenizers, and Filters
          • Analyzers
          • About Tokenizers
          • About Filters
          • Tokenizers
          • Filter Descriptions
          • CharFilterFactories
          • Language Analysis
          • Phonetic Matching
          • Running Your Analyzer
        • Searching
          • Overview of Searching in Solr
          • Velocity Search UI
          • Relevance
          • Query Syntax and Parsing
            • Common Query Parameters
            • The Standard Query Parser
            • The DisMax Query Parser
            • The Extended DisMax (eDismax) Query Parser
            • Function Queries
            • Local Parameters in Queries
            • Other Parsers
          • JSON Request API
            • JSON Query DSL
          • JSON Facet API
          • Faceting
            • BlockJoin Faceting
          • Highlighting
          • Spell Checking
          • Query Re-Ranking
            • Learning To Rank
          • Transforming Result Documents
          • Suggester
          • MoreLikeThis
          • Pagination of Results
          • Collapse and Expand Results
          • Result Grouping
          • Result Clustering
          • Spatial Search
          • The Terms Component
          • The Term Vector Component
          • The Stats Component
          • The Query Elevation Component
          • The Tagger Handler
          • Response Writers
            • Velocity Response Writer
          • Near Real Time Searching
          • RealTime Get
          • Exporting Result Sets
          • Parallel SQL Interface
            • Solr JDBC - DbVisualizer
            • Solr JDBC - SQuirreL SQL
            • Solr JDBC - Apache Zeppelin
            • Solr JDBC - Python/Jython
            • Solr JDBC - R
          • Analytics Component
            • Analytics Expression Sources
            • Analytics Mapping Functions
            • Analytics Reduction Functions
        • Streaming Expressions
          • Stream Source Reference
          • Stream Decorator Reference
          • Stream Evaluator Reference
          • Math Expressions
            • Scalar Math
            • Vector Math
            • Variables
            • Matrices and Matrix Math
            • Streams and Vectorization
            • Text Analysis and Term Vectors
            • Statistics
            • Probability Distributions
            • Monte Carlo Simulations
            • Time Series
            • Linear Regression
            • Interpolation, Derivatives and Integrals
            • Curve Fitting
            • Digital Signal Processing
            • Machine Learning
            • Computational Geometry
          • Graph Traversal
        • SolrCloud
          • Getting Started with SolrCloud
          • How SolrCloud Works
            • Shards and Indexing Data in SolrCloud
            • Distributed Requests
            • Time Routed Aliases
          • SolrCloud Resilience
            • SolrCloud Recoveries and Write Tolerance
            • SolrCloud Query Routing And Read Tolerance
          • SolrCloud Configuration and Parameters
            • Setting Up an External ZooKeeper Ensemble
            • Using ZooKeeper to Manage Configuration Files
            • ZooKeeper Access Control
            • Collections API
            • Parameter Reference
            • Command Line Utilities
            • SolrCloud with Legacy Configuration Files
            • Configsets API
          • Rule-based Replica Placement
          • Cross Data Center Replication (CDCR)
            • CDCR Architecture
            • CDCR Configuration
            • Cross Data Center Replication Operations
            • CDCR API
          • SolrCloud Autoscaling
            • Overview of SolrCloud Autoscaling
            • Autoscaling Policy and Preferences
            • SolrCloud Autoscaling Triggers
            • SolrCloud Autoscaling Trigger Actions
            • SolrCloud Autoscaling Listeners
            • SolrCloud Autoscaling Automatically Adding Replicas
            • SolrCloud Autoscaling Fault Tolerance
            • Autoscaling API
            • Migrating Rule-Based Replica Rules to Autoscaling Policies
          • Colocating Collections
        • The Well-Configured Solr Instance
          • Configuring solrconfig.xml
            • DataDir and DirectoryFactory in SolrConfig
            • Resource and Plugin Loading
            • Schema Factory Definition in SolrConfig
            • IndexConfig in SolrConfig
            • RequestHandlers and SearchComponents in SolrConfig
            • InitParams in SolrConfig
            • UpdateHandlers in SolrConfig
            • Query Settings in SolrConfig
            • RequestDispatcher in SolrConfig
            • Update Request Processors
            • Codec Factory
          • Solr Cores and solr.xml
            • Format of solr.xml
            • Defining core.properties
            • CoreAdmin API
            • Config Sets
          • Configuration APIs
            • Blob Store API
            • Config API
            • Request Parameters API
            • Managed Resources
          • Implicit RequestHandlers
          • Solr Plugins
            • Adding Custom Plugins in SolrCloud Mode
          • JVM Settings
          • v2 API
        • Monitoring Solr
          • Metrics Reporting
          • Metrics History
          • MBean Request Handler
          • Configuring Logging
          • Using JMX with Solr
          • Monitoring Solr with Prometheus and Grafana
          • Performance Statistics Reference
        • Solr Glossary
      • Data Processing

      Release Notes

      Solr Reference Guide

      Fusion 4.2 ships with Solr 7.2.1. See the Solr 7.2.1 Reference Guide.

      Lucidworks

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