This is a notice that as part of "T177195 Reduce technical debt in metrics monitoring https://phabricator.wikimedia.org/T177195" the service
ganglia.wikimedia.org has been retired and removed from DNS.
It had already been in a deprecation period and served a notice about it for a while.
The replacement service is https://grafana.wikimedia.org/
If you see references to it in wiki or code, please feel free to update and/or create/request new grafana dashboards.
--- refs:
https://phabricator.wikimedia.org/T177225
https://gerrit.wikimedia.org/r/#/q/topic:kill-ganglia+(status:open+OR+status...)
https://phabricator.wikimedia.org/T177195