Unassigned dangling_index_imported

Elastic Stack Elasticsearch
2

After restarting all the cluster nodes one by one, in the end I still got those 4 unassigned shards.

I followed the instructions in How to resolve the unassigned shards but failed with 400

$ curl -XPOST 'http://127.0.0.1:9200/_cluster/reroute?pretty' -H 'Content-Type: application/json' -d'
> {
> "commands" : [
> {
> "allocate_stale_primary" : {
> "index" : "logstash-2016.08.23",
> "shard" : 4,
> "node" : "my_node_name",
> "accept_data_loss" : true
> }
> }
> ]
> }
> '
{
  "error" : {
    "root_cause" : [ {
      "type" : "illegal_argument_exception",
      "reason" : "No allocation command factory registered for name [allocate_stale_primary]"
    } ],
    "type" : "illegal_argument_exception",
    "reason" : "No allocation command factory registered for name [allocate_stale_primary]"
  },
  "status" : 400
}

I also tried to use the id of the node, not its node name but the result was the same, from

$ curl -s http://localhost:9200/_nodes?pretty
...
    "3MItGKMuSXiw1YxVIVwKig" : {
      "name" : "my_node_name",
      "transport_address" : "IP:9300",
...