Update for after 27 july 2017
I successfully used Gerrit yesterday, but as of the upgrade today, I can no longer in (username 'eloquence'). I get the following error message:
'Cannot assign user name "erik" to account 4136; name already in use.'
- Discussion https://groups.google.com/forum/#!topic/repo-discuss/SesSyGPbNoI
This is currently affecting about 11 users:
gerrit> select account_id, full_name from accounts where account_id in (2964,3555,20,2394,4111,3327,790,2239,1984,278); account_id | full_name -----------+--------------- 20 | Eloquence 278 | Parent5446 790 | Rasel160 1984 | Papaul 2239 | Kaldari2 2394 | Xujing1 2964 | StudiesWorld 3327 | SamanthaNguyen 3555 | NULL 4111 | Pppery (10 rows; 3 ms)
What's happening is these users are lacking the second row in account_external_ids that they should have to map to their LDAP username. Trying to re-add the missing second row causes it to be deleted when the user tries to login (taking them back to one row). This is being tracked upstream, as there seems to have been a busted migration script (although we're past that) as well as an underlying issue with existing username detection (it's trying to recreate them).
If you are hitting this, perhaps trying a different capitalization works (for some people, at least). For example, if your username on wikitech is JUser, try logging in with JUser exactly and not juser. This is not working for everyone, but it is for some people.