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Get index settings API

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Get index settings API

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Returns setting information for one or more indices. For data streams, the API returns setting information for the stream’s backing indices.

GET /my-index-000001/_settings

Request

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GET /<target>/_settings

GET /<target>/_settings/<setting>

Path parameters

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<target>

(Optional, string) Comma-separated list of data streams, indices, and index aliases used to limit the request. Wildcard expressions (*) are supported.

To target all data streams and indices in a cluster, omit this parameter or use _all or *.

<setting>

(Optional, string) Comma-separated list or wildcard expression of setting names used to limit the request.

Query parameters

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allow_no_indices

(Optional, Boolean) If false, the request returns an error when a wildcard expression, index alias, or _all value targets only missing or closed indices.

Defaults to true.

expand_wildcards

(Optional, string) Controls what kind of indices that wildcard expressions can expand to. Multiple values are accepted when separated by a comma, as in open,hidden. Valid values are:

all: Expand to open and closed indices, including hidden indices.
open: Expand only to open indices.
closed: Expand only to closed indices.
hidden: Expansion of wildcards will include hidden indices. Must be combined with open, closed, or both.
none: Wildcard expressions are not accepted.

Defaults to all.

flat_settings

(Optional, Boolean) If true, returns settings in flat format. Defaults to false.

include_defaults

(Optional, string) If true, return all default settings in the response. Defaults to false.

ignore_unavailable

(Optional, Boolean) If false, the request returns an error if it targets a missing or closed index. Defaults to false.

local

(Optional, Boolean) If true, the request retrieves information from the local node only. Defaults to false, which means information is retrieved from the master node.

master_timeout

(Optional, time units) Specifies the period of time to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error. Defaults to 30s.

Examples

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Multiple data streams and indices

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The get settings API can be used to get settings for more than one data stream or index with a single call. To get settings for all indices in a cluster, you can use _all or * for <target>. Wildcard expressions are also supported. The following are some examples:

GET /my-index-000001,my-index-000002/_settings

GET /_all/_settings

GET /log_2099_*/_settings

Filtering settings by name

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The settings that are returned can be filtered with wildcard matching as follows:

GET /log_2099_-*/_settings/index.number_*

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