Selecting ElasticSearch name for Gitlab's instance
If the same instance of ElasticSearch is used for two different Gitlab instances, creating the index for one of them causes to delete or remove the index of the other Gitlab instance. This is caused because at this time (9.3.10) the index is always created with the same name "gitlab-production" and there is no possibility to change it in the configuration file.
By the way, I am using the Omnibus installation, so whenever I need to create an index I use: "# Omnibus installations sudo gitlab-rake gitlab:elastic:create_empty_index"
Edited by Daniel Juarez