[[cat-indices]]
=== cat indices API
++++
<titleabbrev>cat indices</titleabbrev>
++++

Returns high-level information about indices in a cluster.


[[cat-indices-api-request]]
==== {api-request-title}

`GET /_cat/indices/<index>`


[[cat-indices-api-desc]]
==== {api-description-title}

Use the cat indices API to get the following information for each index in a
cluster:

* Shard count
* Document count
* Deleted document count
* Primary store size
* Total store size of all shards, including shard replicas

These metrics are retrieved directly from
https://lucene.apache.org/core/[Lucene], which {es} uses internally to power
indexing and search. As a result, all document counts include hidden
<<nested,nested>> documents.

To get an accurate count of {es} documents, use the <<cat-count,cat count>> or
<<search-count,count>> APIs.


[[cat-indices-api-path-params]]
==== {api-path-parms-title}

include::{docdir}/rest-api/common-parms.asciidoc[tag=index]


[[cat-indices-api-query-params]]
==== {api-query-parms-title}

include::{docdir}/rest-api/common-parms.asciidoc[tag=bytes]

include::{docdir}/rest-api/common-parms.asciidoc[tag=http-format]

include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-h]

`health`::
+
--
(Optional, string) Health status used to limit returned indices. Valid values
are:

* `green`
* `yellow`
* `red`

By default, the response includes indices of any health status.
--

include::{docdir}/rest-api/common-parms.asciidoc[tag=help]

include::{docdir}/rest-api/common-parms.asciidoc[tag=include-unloaded-segments]

include::{docdir}/rest-api/common-parms.asciidoc[tag=local]

include::{docdir}/rest-api/common-parms.asciidoc[tag=master-timeout]

[[pri-flag]]
`pri` (primary shards)::
(Optional, boolean) If `true`, the response only includes information from
primary shards. Defaults to `false`.

include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-s]

include::{docdir}/rest-api/common-parms.asciidoc[tag=cat-v]


[[cat-indices-api-example]]
==== {api-examples-title}

[[examples]]
[source,console]
--------------------------------------------------
GET /_cat/indices/twi*?v&s=index
--------------------------------------------------
// TEST[setup:huge_twitter]
// TEST[s/^/PUT twitter2\n{"settings": {"number_of_replicas": 0}}\n/]

The API returns the following response:

[source,txt]
--------------------------------------------------
health status index    uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   twitter  u8FNjxh8Rfy_awN11oDKYQ   1   1       1200            0     88.1kb         88.1kb
green  open   twitter2 nYFWZEO7TUiOjLQXBaYJpA   1   0          0            0       260b           260b
--------------------------------------------------
// TESTRESPONSE[s/\d+(\.\d+)?[tgmk]?b/\\d+(\\.\\d+)?[tgmk]?b/]
// TESTRESPONSE[s/u8FNjxh8Rfy_awN11oDKYQ|nYFWZEO7TUiOjLQXBaYJpA/.+/ non_json]