Monitoring -> Elasticsearch -> Nodes - no data nodes(

Hi @alexus,

That list is derived from what we see in the .monitoring-es-6-* monitoring documents using the type: node_stats.

Try running this query and report back your findings:

POST .monitoring-es-6-*/_search
{
    "size": 1,
    "query": {
        "term": {
            "type": "node_stats"
        }
    },
    "sort": {
        "timestamp": {
            "order": "desc"
        }
    },
    "collapse": {
        "field": "source_node.uuid"
    },
    "aggs": {
    	"nodes": {
    		"terms": {
    			"field": "source_node.uuid"
    		}
    	}
    }
}