Robust Search Engine
Powerful full-text search with relevance scoring
Cross-field search capabilities
Phrase matching and proximity searches
Fuzzy matching for error tolerance
Autocomplete and search suggestions
Complex boolean query support
Distributed System Architecture
Horizontally scalable across commodity hardware
Automatic shard management and allocation
High availability with primary and replica shards
Self-healing cluster capabilities
Cross-cluster replication
Rolling updates with zero downtime
Analytics Capabilities
Rich aggregation framework for data analysis
Real-time analytics on massive datasets
Percentiles and statistical aggregations
Composite aggregations for efficient pagination
Time series data analysis with date histograms
Pipeline aggregations for complex calculations
Visualization and Dashboards
OpenSearch Dashboards for data visualization
Interactive charts, graphs, and tables
Geospatial data visualization
Dashboard sharing and export options
Canvas for presentation-ready visualizations
Customizable dashboards for different use cases
Observability Solution
Log analytics with pattern recognition
Metrics monitoring and alerting
APM (Application Performance Monitoring)
Trace analytics for distributed systems
Anomaly detection for outlier identification
Operational dashboards for infrastructure monitoring
Open-Source Freedom
Apache 2.0 licensed codebase
Community-driven development
Transparent governance model
No feature paywalls or artificial limitations
Vendor-neutral project stewardship
Compatible with Elasticsearch 7.10.2 API
Enterprise Security
Role-based access control
Document and field-level security
Transport and REST layer encryption
Audit logging for compliance
Authentication with multiple backends
Security analytics and anomaly detection
Machine Learning Capabilities
k-NN (k-Nearest Neighbors) for similarity search
Anomaly detection for time series data
ML Commons framework for algorithms
Integrated ML model serving
Neural search capabilities
Learning to Rank for relevance tuning
Operational Excellence
Performance analysis tools
Index state management
Hot-warm-cold architecture support
Snapshot and restore for backups
Index rollover for time series data
Automated index lifecycle management
Developer Experience
RESTful JSON API
Client libraries for multiple languages
SQL support for familiar query syntax
PPL (Piped Processing Language)
Extensive documentation and tutorials
Active community forums and support