Why there is a unassigned shard

Elastic Stack Elasticsearch
1

my cluster has a unassigned shard and i run this command:
_cluster/reroute?explain=true

it gives below:
"unassigned": [
{
"node": null,
"unassigned_info": {
"reason": "INDEX_CREATED",
"at": "2016-05-13T02:40:36.058Z"
},
"index": ".node_monitor-2016.05.13",
"relocating_node": null,
"state": "UNASSIGNED",
"shard": 0,
"version": 2,
"primary": false
}
]

why there is a unassigned shard and it keeps stay unassigned?

2

Check your master logs, it should mention something.

3

found it.
is there plan to make it more easy to get like some info in each unassigned shard?

4

Yeah, there is an API call coming in v5 to help with that :slight_smile: