[WARN ][o.e.g.DanglingIndicesState] [X] - can not be imported as a dangling index, as index with same name already exists in cluster metadata

[alexus]

whenever I start my cluster, my logs produces a lot of these messages (just different name for index):

elasticsearch11 | [2017-10-04T20:20:44,936][WARN ][o.e.g.DanglingIndicesState] [114ff04a775b] [[.monitoring-es-6-2017.09.30/zCVhEla1Q9yo4MRCeTeZww]] can not be imported as a dangling index, as index with same name already exists in cluster metadata

I asked similar question a while ago (Can not be imported as a dangling index as index with same name already exists in cluster metadata - Elasticsearch - Discuss the Elastic Stack)

1. What I can do to avoid this from happening in the future?
2. What is better way to handle this? (especially in production environment)

Thanks in advance.

[mujtabahussain]

whenever I start my cluster

How do you shutdown your cluster?

[alexus]

I installed elasticsearch using docker (docker.elastic.co/elasticsearch/elasticsearch:5.6.2) and I use docker stop (or docker-compose stop) to stop container(s).

Please correct me if I'm wrong, however I don't believe there is anything else to do (see: Nodes shutdown | Elasticsearch Reference [5.5] | Elastic).