Index shard stores APIedit
Returns store information about replica shards in one or more indices.
GET /twitter/_shard_stores
Descriptionedit
Use the index shard stores API to return store information about replica shards in one or more indices.
Returned information includes:
- The node on which each replica shard exists
- Allocation ID for each replica shard
- Unique ID for each replica shard
- Any errors encountered while opening the shard index or from an earlier failure
By default, the API only returns store information for primary shards that are unassigned or have one or more unassigned replica shards.
Path parametersedit
-
<index> -
(Optional, string) Comma-separated list or wildcard expression of index names used to limit the request.
To retrieve information for all indices in the cluster, use a value of
_allor*or omit this parameter.
Query parametersedit
-
allow_no_indices -
(Optional, boolean) If
true, the request does not return an error if a wildcard expression or_allvalue retrieves only missing or closed indices.This parameter also applies to index aliases that point to a missing or closed index.
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
open. -
-
ignore_unavailable -
(Optional, boolean) If
true, missing or closed indices are not included in the response. Defaults tofalse. -
status -
(Optional, string) Comma-separated list of shard health statuses used to limit the request.
Valid values include:
-
green - The primary shard and all replica shards are assigned.
-
yellow - One or more replica shards are unassigned.
-
red - The primary shard is unassigned.
-
all - Return all shards, regardless of health status.
Defaults to
yellow,red. -
Examplesedit
Get shard store information for a specific indexedit
GET /test/_shard_stores
Get shard store information for several indicesedit
GET /test1,test2/_shard_stores
Get shard store information for all indicesedit
GET /_shard_stores
Get shard store information based on cluster healthedit
You can use the status query parameter
to limit returned information based on shard health.
The following request only returns information for assigned primary and replica shards.
GET /_shard_stores?status=green
The API returns the following response:
{
"indices": {
"my-index": {
"shards": {
"0": {
"stores": [
{
"sPa3OgxLSYGvQ4oPs-Tajw": {
"name": "node_t0",
"ephemeral_id" : "9NlXRFGCT1m8tkvYCMK-8A",
"transport_address": "local[1]",
"attributes": {}
},
"allocation_id": "2iNySv_OQVePRX-yaRH_lQ",
"allocation" : "primary|replica|unused"
"store_exception": ...
}
]
}
}
}
}
}
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The key is the corresponding shard id for the store information |
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A list of store information for all copies of the shard |
|
|
The node information that hosts a copy of the store, the key is the unique node id. |
|
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The allocation id of the store copy |
|
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The status of the store copy, whether it is used as a primary, replica or not used at all |
|
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Any exception encountered while opening the shard index or from earlier engine failure |