Seen during the rollback today.
Various re-imaged codfw servers (T245757) are throwing errors about no l10ncache, as they presumably did scap pull when all wikis were already on .28, so .27 wasn't rebuilt on those servers. This means when the train was reverted all back to .27, they had no l10n cache waiting to go
No obvious user facing impact (this time!), but icinga is obviously unhappy. And if happened on app servers in the DC currently serving MW.. It could be a much less happy place
[22:35:36] <Reedy> we should make nostalgiawiki always be a version behind [22:35:41] <Reedy> then we can be nostalgic for "last week"