Graylog Empty - Elastic Search Problem Deflector is pointing to [graylog_729], not the newest one: [graylog_730]. Re-pointing

Hello,

This post may help.

EDIT: I also found this for you.

And as @jan stated in this post I quote.

Your Elasticsearch made the index read-only - the reason for that can be found in the elasticsearch log. But I guess because of missing available space …