Provides store information for shard copies of indices. Store information reports on which nodes shard copies exist, the shard copy allocation ID, a unique identifier for each shard copy, and any exceptions encountered while opening the shard index or from earlier engine failure.

By default, only lists store information for shards that have at least one unallocated copy. When the cluster health status is yellow, this will list store information for shards that have at least one unassigned replica. When the cluster health status is red, this will list store information for shards, which has unassigned primaries.

Endpoints include shard stores information for a specific index, several indices, or all:

# return information of only index test
GET /test/_shard_stores

# return information of only test1 and test2 indices
GET /test1,test2/_shard_stores

# return information of all indices
GET /_shard_stores

The scope of shards to list store information can be changed through status param. Defaults to yellow and red. yellow lists store information of shards with at least one unassigned replica and red for shards with unassigned primary shard. Use green to list store information for shards with all assigned copies.

GET /_shard_stores?status=green

Response:

The shard stores information is grouped by indices and shard ids.

{
   "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": ... 
                    }
                ]
              }
           }
       }
   }
}