Since a few days I have enabled email from the alert manager. I have a self-hosted instance of GitLab.
It gives regular alerts about high error rates. Something like this.
 Firing Labels alertname = WorkhorseHighErrorRate method = get route = ^/uploads/ Annotations description = Workhorse route ^/uploads/ method get has more than 50% errors (100.0%) for the last 60 minutes. summary = Workhorse has high error rates
Where should I look to see what errors they are?
BTW there is a link in the same email that points to port 9090 of my GitLab server. However, that port is just bound to localhost, so I can’t see what’s on it. The port is served by