Deallocate node

curl -XPUT localhost:9200/_cluster/settings -H 'Content-Type: application/json' -d '{

 "transient" :{
     "cluster.routing.allocation.exclude._ip" : "10.0.0.1"
  }

}';echo

https://stackoverflow.com/questions/17268495/how-to-remove-node-from-elasticsearch-cluster-on-runtime-without-down-time