Where do the node ids in PerfTop come from?

I just started working with PerfTop built-in dashboards but I’m surprised nodes are not identified by their hostnames but by an id. Where do these ids come from? And how can I match them to my known hostnames? Thanks.

Hi, the node ID is from elasticsearch. You can get it by querying “id” with the “_cat/nodes” API (cat nodes API | Elasticsearch Guide [8.4] | Elastic).

1 Like