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CAT aliases

Introduced 1.0

The CAT aliases operation lists the mapping of aliases to indexes, plus routing and filtering information.

Path and HTTP methods

GET _cat/aliases/<alias>
GET _cat/aliases

Query parameters

Parameter Type Description
local Boolean Whether to return information from the local node only instead of from the cluster manager node. Default is false.
expand_wildcards Enum Expands wildcard expressions to concrete indexes. Combine multiple values with commas. Supported values are all, open, closed, hidden, and none. Default is open.

Example requests

GET _cat/aliases?v

To limit the information to a specific alias, add the alias name after your query:

GET _cat/aliases/<alias>?v

If you want to get information for more than one alias, separate the alias names with commas:

GET _cat/aliases/alias1,alias2,alias3

Example response

The following response shows that alias1 refers to a movies index and has a configured filter:

alias   | index     | filter  | routing.index | routing.search  | is_write_index
alias1  | movies    |   *     |      -        |       -         |      -
.opensearch-dashboards | .opensearch-dashboards_1 |   -     |      -        |       -         |      -

To learn more about index aliases, see Index aliases.

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