https://logstash-beta.wmflabs.org/ shows "No results found" for anything
Switching to "Last 30 days" shows the Events Over Time graph going to 0 on January 18
Might be a recurrance of T233134: logstash-beta.wmflabs.org does not receive any mediawiki events or T211984: Logstash in beta fails periodically
Mentioned in SAL (#wikimedia-releng) [2021-02-11T21:44:44Z] <Krinkle> Logstash in beta is not receiving any events T274593
Restarted logstash on deployment-logstash03 and logs appear to be flowing again.