Unwanted indices are getting created in my ES cluster. For eg bellow
green gpworv1.html 5 1 0 0 1.1kb 575b
green rgspaa1.html 5 1 0 0 1.1kb 575b
green raeeno1.html 5 1 0 0 1.1kb 575b
green nnwrsa1.html 5 1 0 0 1.1kb 575b
green nrrvwo1.html 5 1 0 0 1.1kb 575b
In your elasticsearch.yml file add below code and save it.
action.auto_create_index: 0