When you run either curl http://<node_ip>:9200/_cat/indices or GET _cat/indices (the latter one in the Dev Tools console, you get a summary of all the indices present in your cluster, as well as some size and counts statistics.

Is there a way to access that information via query string query?

I mean, is there an internal ES index with all that information available, that I can query to get the same/similar information?

CodePudding user response：

No there isn't. That information is not kept in an index, but in the cluster state which is stored in a different location.