I ran the Elasticsearch Migration Helper and it came back reporting that about half of my indexes have too many fields. Apparently ES v5.0 has a limit of 1000 fields, and my indexes use on average 1000-1300… ?
I’m learning as I go… My goal is to get us to Graylog v3 with Elasticsearch v6, preferably with all our indexes still accessible.
Anyone else run into this? Any suggestions?