[Engineering] All wikis reverted to wmf.8 last night due to T119736

[Greg Grossmeier]

https://phabricator.wikimedia.org/T119736 - "Could not find local user data for {Username}@{wiki}"

There was an order of magnitude increase in the rate of those errors
that started on July 7th.

Investigation and remediation is on-going.

Greg

-- 
| Greg Grossmeier            GPG: B2FA 27B1 F7EB D327 6B8E |
| identi.ca: @greg                A18D 1138 8E47 FAC8 1C7D |
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