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Elasticsearch Guide [8.18] | Elastic

What217;s new in 8.18 »

Elasticsearch Guide

Elasticsearch Guide: other versions:
What217;s new in 8.18
Elasticsearch basics
- What is Elasticsearch?
- Run Elasticsearch
- Indices and documents
- Add data to Elasticsearch
- Search and analyze data
- Get ready for production
Quick starts
- Basics: Index and search using APIs
- Basics: Full-text search and filtering
- Tutorial: Search and filter with ES|QL
- Basics: Analyze eCommerce data with aggregations
Set up Elasticsearch
- Run Elasticsearch locally
- Installing Elasticsearch
- Configuring Elasticsearch
- Important system configuration
- Bootstrap Checks
- Bootstrap Checks for X-Pack
- Starting Elasticsearch
- Stopping Elasticsearch
- Discovery and cluster formation
- Add and remove nodes in your cluster
- Full-cluster restart and rolling restart
- Remote clusters
- Plugins
Upgrade Elasticsearch
- Archived settings
- Reading indices from older Elasticsearch versions
Index modules
- Analysis
- Index Shard Allocation
- Index blocks
- Mapper
- Merge
- Similarity module
- Slow log
- Store
  - Preloading data into the file system cache
- Translog
- History retention
- Index Sorting
  - Use index sorting to speed up conjunctions
- Indexing pressure
Mapping
- Dynamic mapping
  - Dynamic field mapping
  - Dynamic templates
- Explicit mapping
- Runtime fields
- Field data types
  - Aggregate metric
  - Alias
  - Arrays
  - Binary
  - Boolean
  - Completion
  - Date
  - Date nanoseconds
  - Dense vector
  - Flattened
  - Geopoint
  - Geoshape
  - Histogram
  - IP
  - Join
  - Keyword
  - Nested
  - Numeric
  - Object
  - Pass-through object
  - Percolator
  - Point
  - Range
  - Rank feature
  - Rank features
  - Rank Vectors
  - Search-as-you-type
  - Semantic text
  - Shape
  - Sparse vector
  - Text
  - Token count
  - Unsigned long
  - Version
- Metadata fields
- Mapping parameters
- Mapping limit settings
- Removal of mapping types
Text analysis
- Overview
- Concepts
- Configure text analysis
- Built-in analyzer reference
  - Fingerprint
  - Keyword
  - Language
  - Pattern
  - Simple
  - Standard
  - Stop
  - Whitespace
- Tokenizer reference
  - Character group
  - Classic
  - Edge n-gram
  - Keyword
  - Letter
  - Lowercase
  - N-gram
  - Path hierarchy
  - Pattern
  - Simple pattern
  - Simple pattern split
  - Standard
  - Thai
  - UAX URL email
  - Whitespace
- Token filter reference
- Character filters reference
- Normalizers
Index templates
- Simulate multi-component templates
- Config ignore_missing_component_templates
  - Usage example
Data streams
- Set up a data stream
- Use a data stream
- Modify a data stream
- Time series data stream (TSDS)
- Logs data stream
- Data stream lifecycle
Ingest pipelines
- Example: Parse logs
- Enrich your data
- Processor reference
  - Append
  - Attachment
  - Bytes
  - Circle
  - Community ID
  - Convert
  - CSV
  - Date
  - Date index name
  - Dissect
  - Dot expander
  - Drop
  - Enrich
  - Fail
  - Fingerprint
  - Foreach
  - Geo-grid
  - GeoIP
  - Grok
  - Gsub
  - HTML strip
  - Inference
  - IP Location
  - Join
  - JSON
  - KV
  - Lowercase
  - Network direction
  - Pipeline
  - Redact
  - Registered domain
  - Remove
  - Rename
  - Reroute
  - Script
  - Set
  - Set security user
  - Sort
  - Split
  - Terminate
  - Trim
  - Uppercase
  - URL decode
  - URI parts
  - User agent
- Ingest pipelines in Search
  - Inference processing
  - NLP tutorial
Aliases
Search your data
- The search API
- Full-text search
- Search relevance optimizations
- Retrievers
  - Retrievers examples
- kNN search
- Semantic search
- Retrieval augmented generation
- Search across clusters
- Search with synonyms
- Search Applications
- Search analytics
Re-ranking
- Semantic re-ranking
- Learning To Rank
  - Deploy and manage LTR models
  - Search using LTR
Query DSL
- Query and filter context
- Compound queries
- Full text queries
- Geo queries
- Shape queries
  - Shape
- Joining queries
  - Nested
  - Has child
  - Has parent
  - Parent ID
- Match all
- Span queries
- Vector queries
- Specialized queries
- Term-level queries
  - Exists
  - Fuzzy
  - IDs
  - Prefix
  - Range
  - Regexp
  - Term
  - Terms
  - Terms set
  - Wildcard
- minimum_should_match parameter
- rewrite parameter
- Regular expression syntax
Aggregations
- Bucket aggregations
- Metrics aggregations
  - Avg
  - Boxplot
  - Cardinality
  - Extended stats
  - Geo-bounds
  - Geo-centroid
  - Geo-line
  - Cartesian-bounds
  - Cartesian-centroid
  - Matrix stats
  - Max
  - Median absolute deviation
  - Min
  - Percentile ranks
  - Percentiles
  - Rate
  - Scripted metric
  - Stats
  - String stats
  - Sum
  - T-test
  - Top hits
  - Top metrics
  - Value count
  - Weighted avg
- Pipeline aggregations
Geospatial analysis
Connectors
- Connectors references
  - Azure Blob Storage
  - Box
  - Confluence
  - Dropbox
  - GitHub
  - Gmail
  - Google Cloud Storage
  - Google Drive
  - GraphQL
  - Jira
  - Microsoft SQL
  - MongoDB
  - MySQL
  - Network drive
  - Notion
  - OneDrive
  - OpenText Documentum
  - Oracle
  - Outlook
  - PostgreSQL
  - Redis
  - S3
  - Salesforce
  - ServiceNow
  - SharePoint Online
  - SharePoint Server
  - Slack
  - Teams
  - Zoom
- Self-managed connectors
- Elastic managed connectors
  - Managed connector tutorial (MongoDB)
- Build and customize connectors
- Connectors UI in Kibana
- Connector APIs
  - API tutorial
- Content syncs
- Extract and transform
  - Content extraction
  - Sync rules
- Document level security
  - How DLS works
  - DLS in Search Applications
- Management topics
- Use cases
  - Internal knowledge search
- Release notes
  - 8.18.0
- Known issues
EQL
- Syntax reference
- Function reference
- Pipe reference
- Example: Detect threats with EQL
ES|QL
- Getting started
- ES|QL reference
- Using ES|QL
- Limitations
- Examples
SQL
- Overview
- Getting Started with SQL
- Conventions and Terminology
  - Mapping concepts across SQL and Elasticsearch
- Security
- SQL REST API
- SQL Translate API
- SQL CLI
- SQL JDBC
  - API usage
- SQL ODBC
  - Driver installation
  - Configuration
- SQL Client Applications
- SQL Language
- Functions and Operators
- Reserved keywords
- SQL Limitations
Scripting
- Painless scripting language
- How to write scripts
- Access fields in a document
- Common scripting use cases
  - Field extraction
- Accessing document fields and special variables
- Scripting and security
- Lucene expressions language
- Advanced scripts using script engines
Data management
- ILM: Manage the index lifecycle
- Tutorial: Customize built-in policies
- Tutorial: Automate rollover
- Index management in Kibana
- Overview
- Concepts
- Index lifecycle actions
  - Allocate
  - Delete
  - Force merge
  - Migrate
  - Read only
  - Rollover
  - Downsample
  - Searchable snapshot
  - Set priority
  - Shrink
  - Unfollow
  - Wait for snapshot
- Configure a lifecycle policy
- Migrate index allocation filters to node roles
- Troubleshooting index lifecycle management errors
- Start and stop index lifecycle management
- Manage existing indices
- Skip rollover
- Restore a managed data stream or index
- Data tiers
Autoscaling
- Autoscaling deciders
Monitor a cluster
- Overview
- How it works
- Elasticsearch application logging
- Monitoring in a production environment
- Collecting monitoring data with Elastic Agent
- Collecting monitoring data with Metricbeat
- Collecting log data with Filebeat
- Configuring data streams/indices for monitoring
- Legacy collection methods
Roll up or transform your data
- Rolling up historical data
- Transforming data
Set up a cluster for high availability
- Designing for resilience
  - Resilience in small clusters
  - Resilience in larger clusters
Snapshot and restore
- Register a repository
- Create a snapshot
- Restore a snapshot
- Searchable snapshots
Secure the Elastic Stack
- Elasticsearch security principles
- Start the Elastic Stack with security enabled automatically
- Manually configure security
- Updating node security certificates
  - With the same CA
  - With a different CA
- User authentication
- User authorization
- Enable audit logging
- Restricting connections with IP filtering
- Securing clients and integrations
- Operator privileges
- Troubleshooting
- Limitations
Watcher
- Getting started with Watcher
- How Watcher works
- Encrypting sensitive data in Watcher
- Inputs
- Triggers
- Conditions
- Actions
- Transforms
- Managing watches
- Example watches
  - Watching the status of an Elasticsearch cluster
- Limitations
Cross-cluster replication
- Set up cross-cluster replication
- Manage cross-cluster replication
- Manage auto-follow patterns
- Upgrading clusters
  - Uni-directional index following
  - Bi-directional index following
- Uni-directional disaster recovery
- Bi-directional disaster recovery
Data store architecture
- Nodes and shards
- Node roles
- Reading and writing documents
- Shard allocation, relocation, and recovery
  - Shard allocation awareness
- The shard request cache
REST APIs
- API conventions
- Common options
- REST API compatibility
- Autoscaling APIs
  - Create or update autoscaling policy
  - Get autoscaling capacity
  - Delete autoscaling policy
  - Get autoscaling policy
- Behavioral Analytics APIs
  - Put Analytics Collection
  - Delete Analytics Collection
  - List Analytics Collections
  - Post Analytics Collection Event
- Compact and aligned text (CAT) APIs
  - cat aliases
  - cat allocation
  - cat anomaly detectors
  - cat component templates
  - cat count
  - cat data frame analytics
  - cat datafeeds
  - cat fielddata
  - cat health
  - cat indices
  - cat master
  - cat nodeattrs
  - cat nodes
  - cat pending tasks
  - cat plugins
  - cat recovery
  - cat repositories
  - cat segments
  - cat shards
  - cat snapshots
  - cat task management
  - cat templates
  - cat thread pool
  - cat trained model
  - cat transforms
- Cluster APIs
  - Cluster allocation explain
  - Cluster get settings
  - Cluster health
  - Health
  - Cluster reroute
  - Cluster state
  - Cluster stats
  - Cluster update settings
  - Nodes feature usage
  - Nodes hot threads
  - Nodes info
  - Prevalidate node removal
  - Nodes reload secure settings
  - Nodes stats
  - Cluster Info
  - Pending cluster tasks
  - Remote cluster info
  - Task management
  - Voting configuration exclusions
  - Create or update desired nodes
  - Get desired nodes
  - Delete desired nodes
  - Get desired balance
  - Reset desired balance
- Cross-cluster replication APIs
  - Get CCR stats
  - Create follower
  - Pause follower
  - Resume follower
  - Unfollow
  - Forget follower
  - Get follower stats
  - Get follower info
  - Create auto-follow pattern
  - Delete auto-follow pattern
  - Get auto-follow pattern
  - Pause auto-follow pattern
  - Resume auto-follow pattern
- Connector APIs
  - Create connector
  - Delete connector
  - Get connector
  - List connectors
  - Update connector API key id
  - Update connector configuration
  - Update connector index name
  - Update connector features
  - Update connector filtering
  - Update connector name and description
  - Update connector pipeline
  - Update connector scheduling
  - Update connector service type
  - Create connector sync job
  - Cancel connector sync job
  - Delete connector sync job
  - Get connector sync job
  - List connector sync jobs
  - Check in a connector
  - Update connector error
  - Update connector last sync stats
  - Update connector status
  - Check in connector sync job
  - Claim connector sync job
  - Set connector sync job error
  - Set connector sync job stats
- Data stream APIs
  - Create data stream
  - Delete data stream
  - Get data stream
  - Migrate to data stream
  - Data stream stats
  - Promote data stream
  - Modify data streams
  - Put Data Stream Lifecycle
  - Get Data Stream Lifecycle
  - Delete Data Stream Lifecycle
  - Explain Data Stream Lifecycle
  - Get Data Stream Lifecycle
  - Downsample
- Document APIs
  - Index
  - Get
  - Delete
  - Delete by query
  - Update
  - Update by query
  - Multi get
  - Bulk
  - Reindex
  - Term vectors
  - Multi term vectors
  - ?refresh
  - Optimistic concurrency control
- Enrich APIs
  - Create enrich policy
  - Delete enrich policy
  - Get enrich policy
  - Execute enrich policy
  - Enrich stats
- EQL APIs
  - Delete async EQL search
  - EQL search
  - Get async EQL search
  - Get async EQL search status
- ES|QL APIs
  - ES|QL query API
  - ES|QL async query API
  - ES|QL async query get API
  - ES|QL async query delete API
  - ES|QL async query stop API
- Features APIs
  - Get features
  - Reset features
- Fleet APIs
  - Get global checkpoints
  - Fleet search
  - Fleet multi search
- Graph explore API
- Index APIs
  - Alias exists
  - Aliases
  - Analyze
  - Analyze index disk usage
  - Clear cache
  - Clone index
  - Close index
  - Create index
  - Create or update alias
  - Create or update component template
  - Create or update index template
  - Create or update index template (legacy)
  - Delete component template
  - Delete dangling index
  - Delete alias
  - Delete index
  - Delete index template
  - Delete index template (legacy)
  - Exists
  - Field usage stats
  - Flush
  - Force merge
  - Get alias
  - Get component template
  - Get field mapping
  - Get index
  - Get index settings
  - Get index template
  - Get index template (legacy)
  - Get mapping
  - Import dangling index
  - Index recovery
  - Index segments
  - Index shard stores
  - Index stats
  - Index template exists (legacy)
  - List dangling indices
  - Open index
  - Refresh
  - Resolve index
  - Resolve cluster
  - Advantages of using this endpoint before a cross-cluster search
  - Rollover
  - Shrink index
  - Simulate index
  - Simulate template
  - Split index
  - Unfreeze index
  - Update index settings
  - Update mapping
- Index lifecycle management APIs
  - Create or update lifecycle policy
  - Get policy
  - Delete policy
  - Move to step
  - Remove policy
  - Retry policy
  - Get index lifecycle management status
  - Explain lifecycle
  - Start index lifecycle management
  - Stop index lifecycle management
  - Migrate indices, ILM policies, and legacy, composable and component templates to data tiers routing
- Inference APIs
  - Delete inference API
  - Get inference API
  - Perform inference API
  - Chat completion inference API
  - Create inference API
  - Stream inference API
  - Update inference API
  - AlibabaCloud AI Search inference integration
  - Amazon Bedrock inference integration
  - Anthropic inference integration
  - Azure AI studio inference integration
  - Azure OpenAI inference integration
  - Cohere inference integration
  - Elasticsearch inference integration
  - ELSER inference integration
  - Google AI Studio inference integration
  - Google Vertex AI inference integration
  - HuggingFace inference integration
  - JinaAI inference integration
  - Mistral inference integration
  - OpenAI inference integration
  - VoyageAI inference integration
  - Watsonx inference integration
- Info API
- Ingest APIs
  - Create or update pipeline
  - Get pipeline
  - Delete pipeline
  - Simulate pipeline
  - Simulate ingest
  - GeoIP stats
  - Create or update IP geolocation database configuration
  - Get IP geolocation database configuration
  - Delete IP geolocation database configuration
- Licensing APIs
  - Delete license
  - Get license
  - Get trial status
  - Start trial
  - Get basic status
  - Start basic
  - Update license
- Logstash APIs
  - Create or update Logstash pipeline
  - Delete Logstash pipeline
  - Get Logstash pipeline
- Machine learning APIs
  - Get machine learning info
  - Get machine learning memory stats
  - Set upgrade mode
- Machine learning anomaly detection APIs
  - Add events to calendar
  - Add jobs to calendar
  - Close jobs
  - Create jobs
  - Create calendars
  - Create datafeeds
  - Create filters
  - Delete calendars
  - Delete datafeeds
  - Delete events from calendar
  - Delete filters
  - Delete forecasts
  - Delete jobs
  - Delete jobs from calendar
  - Delete model snapshots
  - Delete expired data
  - Estimate model memory
  - Flush jobs
  - Forecast jobs
  - Get buckets
  - Get calendars
  - Get categories
  - Get datafeeds
  - Get datafeed statistics
  - Get influencers
  - Get jobs
  - Get job statistics
  - Get model snapshots
  - Get model snapshot upgrade statistics
  - Get overall buckets
  - Get scheduled events
  - Get filters
  - Get records
  - Open jobs
  - Post data to jobs
  - Preview datafeeds
  - Reset jobs
  - Revert model snapshots
  - Start datafeeds
  - Stop datafeeds
  - Update datafeeds
  - Update filters
  - Update jobs
  - Update model snapshots
  - Upgrade model snapshots
- Machine learning data frame analytics APIs
  - Create data frame analytics jobs
  - Delete data frame analytics jobs
  - Evaluate data frame analytics
  - Explain data frame analytics
  - Get data frame analytics jobs
  - Get data frame analytics jobs stats
  - Preview data frame analytics
  - Start data frame analytics jobs
  - Stop data frame analytics jobs
  - Update data frame analytics jobs
- Machine learning trained model APIs
  - Clear trained model deployment cache
  - Create or update trained model aliases
  - Create part of a trained model
  - Create trained models
  - Create trained model vocabulary
  - Delete trained model aliases
  - Delete trained models
  - Get trained models
  - Get trained models stats
  - Infer trained model
  - Start trained model deployment
  - Stop trained model deployment
  - Update trained model deployment
- Migration APIs
  - Deprecation info
  - Feature migration
  - Reindex data stream
  - Reindex data stream status
  - Reindex data stream cancel
  - Create index from source
- Node lifecycle APIs
  - Put shutdown API
  - Get shutdown API
  - Delete shutdown API
- Query rules APIs
  - Create or update query ruleset
  - Get query ruleset
  - List query rulesets
  - Delete query ruleset
  - Create or update query rule
  - Get query rule
  - Delete query rule
  - Tests query ruleset
- Reload search analyzers API
- Repositories metering APIs
  - Get repositories metering information
  - Clear repositories metering archive
- Rollup APIs
  - Create rollup jobs
  - Delete rollup jobs
  - Get job
  - Get rollup caps
  - Get rollup index caps
  - Rollup search
  - Start rollup jobs
  - Stop rollup jobs
- Root API
- Script APIs
  - Create or update stored script
  - Delete stored script
  - Get script contexts
  - Get script languages
  - Get stored script
- Search APIs
  - Search
  - Async search
  - Point in time
  - kNN search
  - Retriever
  - Reciprocal rank fusion
  - Scroll
  - Clear scroll
  - Search template
  - Multi search template
  - Render search template
  - Search shards
  - Suggesters
  - Multi search
  - Count
  - Validate
  - Terms enum
  - Explain
  - Profile
  - Field capabilities
  - Ranking evaluation
  - Vector tile search
- Search Application APIs
  - Put Search Application
  - Get Search Application
  - List Search Applications
  - Delete Search Application
  - Search Application Search
  - Render Search Application Query
- Searchable snapshots APIs
  - Mount snapshot
  - Cache stats
  - Searchable snapshot statistics
  - Clear cache
- Security APIs
  - Authenticate
  - Change passwords
  - Clear cache
  - Clear roles cache
  - Clear privileges cache
  - Clear API key cache
  - Clear service account token caches
  - Create API keys
  - Create or update application privileges
  - Create or update role mappings
  - Create or update roles
  - Bulk create or update roles API
  - Bulk delete roles API
  - Create or update users
  - Create service account tokens
  - Delegate PKI authentication
  - Delete application privileges
  - Delete role mappings
  - Delete roles
  - Delete service account token
  - Delete users
  - Disable users
  - Enable users
  - Enroll Kibana
  - Enroll node
  - Get API key information
  - Get application privileges
  - Get builtin privileges
  - Get role mappings
  - Get roles
  - Query Role
  - Get service accounts
  - Get service account credentials
  - Get Security settings
  - Get token
  - Get user privileges
  - Get users
  - Grant API keys
  - Has privileges
  - Invalidate API key
  - Invalidate token
  - OpenID Connect prepare authentication
  - OpenID Connect authenticate
  - OpenID Connect logout
  - Query API key information
  - Query User
  - Update API key
  - Update Security settings
  - Bulk update API keys
  - SAML prepare authentication
  - SAML authenticate
  - SAML logout
  - SAML invalidate
  - SAML complete logout
  - SAML service provider metadata
  - SSL certificate
  - Activate user profile
  - Disable user profile
  - Enable user profile
  - Get user profiles
  - Suggest user profile
  - Update user profile data
  - Has privileges user profile
  - Create Cross-Cluster API key
  - Update Cross-Cluster API key
- Snapshot and restore APIs
  - Create or update snapshot repository
  - Verify snapshot repository
  - Repository analysis
  - Verify repository integrity
  - Get snapshot repository
  - Delete snapshot repository
  - Clean up snapshot repository
  - Clone snapshot
  - Create snapshot
  - Get snapshot
  - Get snapshot status
  - Restore snapshot
  - Delete snapshot
- Snapshot lifecycle management APIs
  - Create or update policy
  - Get policy
  - Delete policy
  - Execute snapshot lifecycle policy
  - Execute snapshot retention policy
  - Get snapshot lifecycle management status
  - Get snapshot lifecycle stats
  - Start snapshot lifecycle management
  - Stop snapshot lifecycle management
- SQL APIs
  - Clear SQL cursor
  - Delete async SQL search
  - Get async SQL search
  - Get async SQL search status
  - SQL search
  - SQL translate
- Synonyms APIs
  - Create or update synonyms set
  - Get synonyms set
  - List synonyms sets
  - Delete synonyms set
  - Create or update synonym rule
  - Get synonym rule
  - Delete synonym rule
- Text structure APIs
  - Find field structure API
  - Find messages structure API
  - Find text structure API
  - Test Grok pattern
- Transform APIs
  - Create transform
  - Delete transform
  - Get transforms
  - Get transform statistics
  - Preview transform
  - Reset transform
  - Schedule now transform
  - Start transform
  - Stop transforms
  - Update transform
  - Upgrade transforms
- Usage API
- Watcher APIs
  - Ack watch
  - Activate watch
  - Deactivate watch
  - Delete watch
  - Execute watch
  - Get watch
  - Get Watcher stats
  - Query watches
  - Create or update watch
  - Update Watcher settings
  - Get Watcher settings
  - Start watch service
  - Stop watch service
- Definitions
  - Role mapping resources
Command line tools
- elasticsearch-certgen
- elasticsearch-certutil
- elasticsearch-create-enrollment-token
- elasticsearch-croneval
- elasticsearch-keystore
- elasticsearch-node
- elasticsearch-reconfigure-node
- elasticsearch-reset-password
- elasticsearch-saml-metadata
- elasticsearch-service-tokens
- elasticsearch-setup-passwords
- elasticsearch-shard
- elasticsearch-syskeygen
- elasticsearch-users
Optimizations
- General recommendations
- Tune for indexing speed
- Tune for search speed
- Tune approximate kNN search
- Tune for disk usage
- Size your shards
- Use Elasticsearch for time series data
Troubleshooting
- Fix common cluster issues
  - Watermark errors
  - Circuit breaker errors
  - High CPU usage
  - High JVM memory pressure
  - Red or yellow cluster health status
  - Rejected requests
  - Task queue backlog
  - Mapping explosion
  - Hot spotting
- Diagnose unassigned shards
- Add a missing tier to the system
- Allow Elasticsearch to allocate the data in the system
- Allow Elasticsearch to allocate the index
- Indices mix index allocation filters with data tiers node roles to move through data tiers
- Not enough nodes to allocate all shard replicas
- Total number of shards for an index on a single node exceeded
- Total number of shards per node has been reached
- Configuring source mode in mappings is deprecated and replaced by an index setting
- Troubleshooting corruption
- Fix data nodes out of disk
  - Increase the disk capacity of data nodes
  - Decrease the disk usage of data nodes
- Fix master nodes out of disk
- Fix other role nodes out of disk
- Start index lifecycle management
- Start Snapshot Lifecycle Management
- Restore from snapshot
- Troubleshooting broken repositories
  - Diagnosing corrupted repositories
  - Diagnosing unknown repositories
  - Diagnosing invalid repositories
- Addressing repeated snapshot policy failures
- Troubleshooting an unstable cluster
- Troubleshooting discovery
- Troubleshooting monitoring
- Troubleshooting transforms
- Troubleshooting Watcher
- Troubleshooting searches
- Troubleshooting shards capacity health issues
- Troubleshooting an unbalanced cluster
- Capture diagnostics
Migration guide
- 8.18
- 8.17
- 8.16
- 8.15
- 8.14
- 8.13
- 8.12
- 8.11
- 8.10
- 8.9
- 8.8
- 8.7
- 8.6
- 8.5
- 8.4
- 8.3
- 8.2
- 8.1
- 8.0
  - Java time migration guide
  - Transient settings migration guide
Release notes
- Elasticsearch version 8.18.0
- Elasticsearch version 8.17.5
- Elasticsearch version 8.17.4
- Elasticsearch version 8.17.3
- Elasticsearch version 8.17.2
- Elasticsearch version 8.17.1
- Elasticsearch version 8.17.0
- Elasticsearch version 8.16.6
- Elasticsearch version 8.16.5
- Elasticsearch version 8.16.4
- Elasticsearch version 8.16.3
- Elasticsearch version 8.16.2
- Elasticsearch version 8.16.1
- Elasticsearch version 8.16.0
- Elasticsearch version 8.15.5
- Elasticsearch version 8.15.4
- Elasticsearch version 8.15.3
- Elasticsearch version 8.15.2
- Elasticsearch version 8.15.1
- Elasticsearch version 8.15.0
- Elasticsearch version 8.14.3
- Elasticsearch version 8.14.2
- Elasticsearch version 8.14.1
- Elasticsearch version 8.14.0
- Elasticsearch version 8.13.4
- Elasticsearch version 8.13.3
- Elasticsearch version 8.13.2
  - Bug fixes
- Elasticsearch version 8.13.1
  - Bug fixes
- Elasticsearch version 8.13.0
- Elasticsearch version 8.12.2
- Elasticsearch version 8.12.1
- Elasticsearch version 8.12.0
- Elasticsearch version 8.11.4
- Elasticsearch version 8.11.3
- Elasticsearch version 8.11.2
- Elasticsearch version 8.11.1
- Elasticsearch version 8.11.0
- Elasticsearch version 8.10.4
- Elasticsearch version 8.10.3
- Elasticsearch version 8.10.2
- Elasticsearch version 8.10.1
- Elasticsearch version 8.10.0
- Elasticsearch version 8.9.2
- Elasticsearch version 8.9.1
- Elasticsearch version 8.9.0
- Elasticsearch version 8.8.2
- Elasticsearch version 8.8.1
- Elasticsearch version 8.8.0
- Elasticsearch version 8.7.1
- Elasticsearch version 8.7.0
- Elasticsearch version 8.6.2
- Elasticsearch version 8.6.1
- Elasticsearch version 8.6.0
- Elasticsearch version 8.5.3
- Elasticsearch version 8.5.2
- Elasticsearch version 8.5.1
- Elasticsearch version 8.5.0
- Elasticsearch version 8.4.3
- Elasticsearch version 8.4.2
- Elasticsearch version 8.4.1
- Elasticsearch version 8.4.0
- Elasticsearch version 8.3.3
- Elasticsearch version 8.3.2
- Elasticsearch version 8.3.1
- Elasticsearch version 8.3.0
- Elasticsearch version 8.2.3
- Elasticsearch version 8.2.2
- Elasticsearch version 8.2.1
- Elasticsearch version 8.2.0
- Elasticsearch version 8.1.3
- Elasticsearch version 8.1.2
- Elasticsearch version 8.1.1
- Elasticsearch version 8.1.0
- Elasticsearch version 8.0.1
- Elasticsearch version 8.0.0
- Elasticsearch version 8.0.0-rc2
- Elasticsearch version 8.0.0-rc1
- Elasticsearch version 8.0.0-beta1
- Elasticsearch version 8.0.0-alpha2
- Elasticsearch version 8.0.0-alpha1
Dependencies and versions

A newer version is available. Check out the latest documentation.

Search and analyze your data

Elasticsearch is the search and analytics engine that powers the Elastic Stack.

Introduction What's new Release notes

Get to know Elasticsearch

Demos: Hands-on learning for Search

New webinar: Architect search apps with Google Cloud

Install, manage, and secure

Ingest data

Search and analyze

Search your data
Query data with the Query DSL, ES|QL, EQL, or SQL
Search applications
Search analytics
Aggregations
Geospatial analysis
Machine Learning
Alerting

Data management

APIs and developer docs

Explore by use case

Search my data

Create search experiences for your content, wherever it lives.

Observe my data

Follow our guides to monitor logs, metrics, and traces.

Protect my environment

Learn how to defend against threats across your environment.

What217;s new in 8.18 »