- Elasticsearch Guide: other versions:
- What’s new in 8.18
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analyzercoercecopy_todoc_valuesdynamiceager_global_ordinalsenabledformatignore_aboveindex.mapping.ignore_aboveignore_malformedindexindex_optionsindex_phrasesindex_prefixesmetafieldsnormalizernormsnull_valueposition_increment_gappropertiessearch_analyzersimilaritystoresubobjectsterm_vector
- Mapping limit settings
- Removal of mapping types
- Text analysis
- Overview
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- Configure text analysis
- Built-in analyzer reference
- Tokenizer reference
- Token filter reference
- Apostrophe
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- ILM: Manage the index lifecycle
- Tutorial: Customize built-in policies
- Tutorial: Automate rollover
- Index management in Kibana
- Overview
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- Index lifecycle actions
- Configure a lifecycle policy
- Migrate index allocation filters to node roles
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- Elasticsearch security principles
- Start the Elastic Stack with security enabled automatically
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- Updating node security certificates
- User authentication
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- User profiles
- Realms
- Realm chains
- Security domains
- Active Directory user authentication
- File-based user authentication
- LDAP user authentication
- Native user authentication
- OpenID Connect authentication
- PKI user authentication
- SAML authentication
- Kerberos authentication
- JWT authentication
- Integrating with other authentication systems
- Enabling anonymous access
- Looking up users without authentication
- Controlling the user cache
- Configuring SAML single-sign-on on the Elastic Stack
- Configuring single sign-on to the Elastic Stack using OpenID Connect
- User authorization
- Built-in roles
- Defining roles
- Role restriction
- Security privileges
- Document level security
- Field level security
- Granting privileges for data streams and aliases
- Mapping users and groups to roles
- Setting up field and document level security
- Submitting requests on behalf of other users
- Configuring authorization delegation
- Customizing roles and authorization
- Enable audit logging
- Restricting connections with IP filtering
- Securing clients and integrations
- Operator privileges
- Troubleshooting
- Some settings are not returned via the nodes settings API
- Authorization exceptions
- Users command fails due to extra arguments
- Users are frequently locked out of Active Directory
- Certificate verification fails for curl on Mac
- SSLHandshakeException causes connections to fail
- Common SSL/TLS exceptions
- Common Kerberos exceptions
- Common SAML issues
- Internal Server Error in Kibana
- Setup-passwords command fails due to connection failure
- Failures due to relocation of the configuration files
- Limitations
- Watcher
- Cross-cluster replication
- Data store architecture
- REST APIs
- API conventions
- Common options
- REST API compatibility
- Autoscaling APIs
- Behavioral Analytics APIs
- Compact and aligned text (CAT) APIs
- cat aliases
- cat allocation
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- cat component templates
- cat count
- cat data frame analytics
- cat datafeeds
- cat fielddata
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- cat master
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- cat plugins
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- Cluster APIs
- Cluster allocation explain
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- Create or update desired nodes
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- Cross-cluster replication APIs
- Connector APIs
- Create connector
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- Data stream APIs
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- Delete component template
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- Delete index
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- Exists
- Field usage stats
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- Get alias
- Get component template
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- Get index
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- Index template exists (legacy)
- List dangling indices
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- Advantages of using this endpoint before a cross-cluster search
- Rollover
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- Index lifecycle management APIs
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- Remove policy
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- Get index lifecycle management status
- Explain lifecycle
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- Migrate indices, ILM policies, and legacy, composable and component templates to data tiers routing
- Inference APIs
- Delete inference API
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- ELSER inference integration
- Google AI Studio inference integration
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- Info API
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- Machine learning APIs
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- Add events to calendar
- Add jobs to calendar
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- Delete forecasts
- Delete jobs
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- Estimate model memory
- Flush jobs
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- 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
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- Open jobs
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- Start datafeeds
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- Update filters
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- Machine learning data frame analytics APIs
- Create data frame analytics jobs
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- Get data frame analytics jobs
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- Machine learning trained model APIs
- Clear trained model deployment cache
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- Migration APIs
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- Query rules APIs
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- Get roles
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- Snapshot and restore APIs
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- SQL APIs
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- Transform APIs
- Usage API
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- Definitions
- 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
- Troubleshooting
- Fix common cluster issues
- 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
- 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
- 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
- Release notes
- Elasticsearch version 8.18.0
- Elasticsearch version 8.17.2
- Elasticsearch version 8.17.1
- Elasticsearch version 8.17.0
- 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
- Elasticsearch version 8.13.1
- 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
This documentation contains work-in-progress information for future Elastic Stack and Cloud releases. Use the version selector to view supported release docs. It also contains some Elastic Cloud serverless information. Check out our serverless docs for more details.
What’s new in 8.18
editWhat’s new in 8.18
editComing in 8.18.
Here are the highlights of what’s new and improved in Elasticsearch 8.18! For detailed information about this release, see the Release notes and Migration guide.
Other versions:
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
Add new experimental rank_vectors mapping for late-interaction second order ranking
editLate-interaction models are powerful rerankers. While their size and overall cost doesn’t lend itself for HNSW indexing, utilizing them as second order reranking can provide excellent boosts in relevance. The new rank_vectors mapping allows for rescoring over new and novel multi-vector late-interaction models like ColBERT or ColPali.
[[8_x_add_new_experimental_rank_vectors_mapping_for_late_interaction_second_order_ranking]]
=== [8.x] Add new experimental rank_vectors mapping for late-interaction second order ranking
Backports the following commits to 8.x: - Add new experimental
rank_vectors mapping for late-interaction second order ranking (#118804)
Enable LOOKUP JOIN in non-snapshot builds
editThis effectively releases LOOKUP JOIN into tech preview. Docs will follow in a separate PR.
- Enable the lexing/grammar for LOOKUP JOIN in non-snapshot builds.
-
Remove the grammar for the unsupported
| JOIN ...command (withoutLOOKUPas first keyword). The way the lexer modes work, otherwise we’d also have to enable| JOIN ...syntax on non-snapshot builds and would have to add additional validation to provide appropriate error messages. -
Remove grammar for
LOOKUP JOIN index AS ...because qualifiers are not yet supported. Otherwise we’d have to put in additional validation as well to prevent such queries.
Also fix https://github.com/elastic/elasticsearch/issues/121185
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