Hi everybody,
today as part of https://phabricator.wikimedia.org/T114199 we migrated all the eventlogging daemons (except the zmq-forwarder, see https://gerrit.wikimedia.org/r/#/c/415218/) from eventlog1001 (Ubuntu Trusty) to eventlog1002 (Debian Stretch). The maintenance that we followed involved some downtime (13:26->13:32 UTC) that will probably be reflected in all the Eventlogging metrics, including the schema ones.
Please let us know if you notice anything out of the ordinary during the next hours.
Thanks a lot!
Luca (on behalf of the Analytics team)