- Elasticsearch Guide: other versions:
- What’s new in 8.17
- Elasticsearch basics
- Quick starts
- Set up Elasticsearch
- Run Elasticsearch locally
- Installing Elasticsearch
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analyzer
coerce
copy_to
doc_values
dynamic
eager_global_ordinals
enabled
format
ignore_above
index.mapping.ignore_above
ignore_malformed
index
index_options
index_phrases
index_prefixes
meta
fields
normalizer
norms
null_value
position_increment_gap
properties
search_analyzer
similarity
store
subobjects
term_vector
- Mapping limit settings
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- Overview
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- Built-in analyzer reference
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- Example: Parse logs
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- Overview
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- Mathematical Functions
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- Type Conversion Functions
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- System Functions
- Reserved keywords
- SQL Limitations
- Scripting
- Data management
- ILM: Manage the index lifecycle
- Tutorial: Customize built-in policies
- Tutorial: Automate rollover
- Index management in Kibana
- Overview
- Concepts
- Index lifecycle actions
- 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
- Monitor a cluster
- Roll up or transform your data
- Set up a cluster for high availability
- Snapshot and restore
- Secure the Elastic Stack
- Elasticsearch security principles
- Start the Elastic Stack with security enabled automatically
- Manually configure security
- Updating node security certificates
- User authentication
- Built-in users
- Service accounts
- Internal users
- Token-based authentication services
- 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
- cat anomaly detectors
- cat component templates
- cat count
- cat data frame analytics
- cat datafeeds
- cat fielddata
- cat health
- cat indices
- cat master
- cat nodeattrs
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- cat plugins
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- cat segments
- cat shards
- cat snapshots
- cat task management
- cat templates
- cat thread pool
- cat trained model
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- 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
- Connector APIs
- Create connector
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- Get connector
- List connectors
- Update connector API key id
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- Update connector index name
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- Update connector filtering
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- Get connector sync job
- List connector sync jobs
- Check in a connector
- Update connector error
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- 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
- Document APIs
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- EQL APIs
- ES|QL APIs
- Features APIs
- Fleet APIs
- Graph explore API
- Index APIs
- Alias exists
- Aliases
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- Delete component template
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- 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
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- Resolve cluster
- 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
- Create inference API
- Stream inference API
- Update inference API
- AlibabaCloud AI Search inference service
- Amazon Bedrock inference service
- Anthropic inference service
- Azure AI studio inference service
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- Cohere inference service
- Elasticsearch inference service
- ELSER inference service
- Google AI Studio inference service
- Google Vertex AI inference service
- HuggingFace inference service
- Mistral inference service
- OpenAI inference service
- Watsonx inference service
- Info API
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- Licensing APIs
- Logstash APIs
- Machine learning APIs
- Machine learning anomaly detection APIs
- Add events to calendar
- Add jobs to calendar
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- Create calendars
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- Create filters
- Delete calendars
- Delete datafeeds
- Delete events from calendar
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- Delete forecasts
- Delete jobs
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- 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
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- Reset jobs
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- Start datafeeds
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- Update datafeeds
- Update filters
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- 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
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- 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
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- Start trained model deployment
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- Update trained model deployment
- Migration APIs
- Node lifecycle APIs
- Query rules APIs
- Reload search analyzers API
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- Rollup APIs
- Root API
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- Search APIs
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- Searchable snapshots APIs
- Security APIs
- Authenticate
- Change passwords
- Clear cache
- Clear roles cache
- Clear privileges cache
- Clear API key cache
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- Create API keys
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- 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
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- 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
- Snapshot lifecycle management APIs
- SQL APIs
- Synonyms APIs
- Text structure APIs
- Transform APIs
- Usage API
- Watcher APIs
- 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
- 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 8.17.1
- Elasticsearch version 8.17.0
- 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
Clone index API
editClone index API
editClones an existing index.
resp = client.indices.clone( index="my-index-000001", target="cloned-my-index-000001", ) print(resp)
const response = await client.indices.clone({ index: "my-index-000001", target: "cloned-my-index-000001", }); console.log(response);
POST /my-index-000001/_clone/cloned-my-index-000001
Prerequisites
edit-
If the Elasticsearch security features are enabled, you must have the
manage
index privilege for the index you want to clone. -
To clone an index, the index must be marked as read-only and have a
cluster health status of
green
.
For example,
the following request prevents write operations on my_source_index
so it can be cloned using the
add index block API.
Metadata changes like deleting the index are still allowed.
resp = client.indices.add_block( index="my_source_index", block="write", ) print(resp)
response = client.indices.add_block( index: 'my_source_index', block: 'write' ) puts response
const response = await client.indices.addBlock({ index: "my_source_index", block: "write", }); console.log(response);
PUT /my_source_index/_block/write
The current write index on a data stream cannot be cloned. In order to clone the current write index, the data stream must first be rolled over so that a new write index is created and then the previous write index can be cloned.
Description
editUse the clone index API to clone an existing index into a new index, where each original primary shard is cloned into a new primary shard in the new index.
Elasticsearch doesn’t apply index templates to the resulting index. The API also doesn’t copy index metadata from the original index. Index metadata includes aliases, ILM phase definitions, and CCR follower information. For example, if you clone a CCR follower index, the resulting clone won’t be a follower index.
The clone API copies most index settings from the source index to the resulting
index, with the exception of index.number_of_replicas
and
index.auto_expand_replicas
. To set the number of replicas in the resulting
index, configure these settings in the clone request.
How cloning works
editCloning works as follows:
- First, it creates a new target index with the same definition as the source index.
- Then it hard-links segments from the source index into the target index. (If the file system doesn’t support hard-linking, then all segments are copied into the new index, which is a much more time consuming process.)
- Finally, it recovers the target index as though it were a closed index which had just been re-opened.
Clone an index
editTo clone my_source_index
into a new index called my_target_index
, issue
the following request:
resp = client.indices.clone( index="my_source_index", target="my_target_index", ) print(resp)
response = client.indices.clone( index: 'my_source_index', target: 'my_target_index' ) puts response
const response = await client.indices.clone({ index: "my_source_index", target: "my_target_index", }); console.log(response);
POST /my_source_index/_clone/my_target_index
The above request returns immediately once the target index has been added to the cluster state — it doesn’t wait for the clone operation to start.
Indices can only be cloned if they meet the following requirements:
- The target index must not exist.
- The source index must have the same number of primary shards as the target index.
- The node handling the clone process must have sufficient free disk space to accommodate a second copy of the existing index.
The _clone
API is similar to the create index
API
and accepts settings
and aliases
parameters for the target index:
resp = client.indices.clone( index="my_source_index", target="my_target_index", settings={ "index.number_of_shards": 5 }, aliases={ "my_search_indices": {} }, ) print(resp)
response = client.indices.clone( index: 'my_source_index', target: 'my_target_index', body: { settings: { 'index.number_of_shards' => 5 }, aliases: { my_search_indices: {} } } ) puts response
const response = await client.indices.clone({ index: "my_source_index", target: "my_target_index", settings: { "index.number_of_shards": 5, }, aliases: { my_search_indices: {}, }, }); console.log(response);
POST /my_source_index/_clone/my_target_index { "settings": { "index.number_of_shards": 5 }, "aliases": { "my_search_indices": {} } }
The number of shards in the target index. This must be equal to the number of shards in the source index. |
Mappings may not be specified in the _clone
request. The mappings of
the source index will be used for the target index.
Monitor the cloning process
editThe cloning process can be monitored with the _cat recovery
API, or the cluster health
API can be used to wait
until all primary shards have been allocated by setting the wait_for_status
parameter to yellow
.
The _clone
API returns as soon as the target index has been added to the
cluster state, before any shards have been allocated. At this point, all
shards are in the state unassigned
. If, for any reason, the target index
can’t be allocated, its primary shard will remain unassigned
until it
can be allocated on that node.
Once the primary shard is allocated, it moves to state initializing
, and the
clone process begins. When the clone operation completes, the shard will
become active
. At that point, Elasticsearch will try to allocate any
replicas and may decide to relocate the primary shard to another node.
Wait for active shards
editBecause the clone operation creates a new index to clone the shards to, the wait for active shards setting on index creation applies to the clone index action as well.
Path parameters
edit-
<index>
- (Required, string) Name of the source index to clone.
-
<target-index>
-
(Required, string) Name of the target index to create.
Index names must meet the following criteria:
- Lowercase only
-
Cannot include
\
,/
,*
,?
,"
,<
,>
,|
, ` ` (space character),,
,#
-
Indices prior to 7.0 could contain a colon (
:
), but that’s been deprecated and won’t be supported in 7.0+ -
Cannot start with
-
,_
,+
-
Cannot be
.
or..
- Cannot be longer than 255 bytes (note it is bytes, so multi-byte characters will count towards the 255 limit faster)
-
Names starting with
.
are deprecated, except for hidden indices and internal indices managed by plugins
Query parameters
edit-
wait_for_active_shards
-
(Optional, string) The number of copies of each shard that must be active before proceeding with the operation. Set to
all
or any non-negative integer up to the total number of copies of each shard in the index (number_of_replicas+1
). Defaults to1
, meaning to wait just for each primary shard to be active.See Active shards.
-
master_timeout
-
(Optional, time units)
Period to wait for the master node. If the master node is not available before
the timeout expires, the request fails and returns an error. Defaults to
30s
. Can also be set to-1
to indicate that the request should never timeout. -
timeout
-
(Optional, time units) Period to wait for a response from all relevant nodes in the cluster after updating the cluster metadata.
If no response is received before the timeout expires, the cluster metadata update still applies but the response will indicate that it was not completely acknowledged.
Defaults to
30s
. Can also be set to-1
to indicate that the request should never timeout.
Request body
edit-
aliases
-
(Optional, object of objects) Aliases for the resulting index.
Properties of
aliases
objects-
<alias>
-
(Required, object) The key is the alias name. Index alias names support date math.
The object body contains options for the alias. Supports an empty object.
Properties of
<alias>
-
filter
- (Optional, Query DSL object) Query used to limit documents the alias can access.
-
index_routing
-
(Optional, string) Value used to route indexing operations to a specific shard.
If specified, this overwrites the
routing
value for indexing operations. -
is_hidden
-
(Optional, Boolean) If
true
, the alias is hidden. Defaults tofalse
. All indices for the alias must have the sameis_hidden
value. -
is_write_index
-
(Optional, Boolean) If
true
, the index is the write index for the alias. Defaults tofalse
. -
routing
- (Optional, string) Value used to route indexing and search operations to a specific shard.
-
search_routing
-
(Optional, string) Value used to route search operations to a specific shard. If
specified, this overwrites the
routing
value for search operations.
-
-
-
settings
- (Optional, index setting object) Configuration options for the target index. See Index settings.
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