Note there is not likely going to be things broken, as for now, all wikis are on all servers (and there will not bee physical movement); although we may need to add s8 to replication lag check.

There is likely to be a few minutes of lag on wikidatawiki, though.

In T181643#3797142, @jcrespo wrote:

Note there is not likely going to be things broken, as for now, all wikis are on all servers (and there will not bee physical movement); although we may need to add s8 to replication lag check.

Agreed, but the change may cause surprise breakage later if we need to split the slices apart for some reason.

Adding to the replag check is a good reminder. I'll try to remember to put that in the checklist of things along with the Cloud DNS updates.

As a reminder, this is happening in exactly 1 week from now.

Announced on cloud-announce: https://lists.wikimedia.org/pipermail/cloud-announce/2018-January/000014.html

This was successfully done earlier today. So believe this task is fine to be closed.

Mentioned in SAL (#wikimedia-operations) [2018-01-09T16:09:37Z] <bd808> data-services: added s8.{analytics,web}.db.svc.eqiad.wmflabs and aliases (T181643, T184179)