18:09 <    greg-g> bblack: dumb question, any caching things change recently that would cause this to 
                   happen: Beta Cluster main page loads fine, but any other random article doesn't 
                   http://en.wikipedia.beta.wmflabs.org/wiki/UserMergeqvkpbd
18:19 <    bblack> greg-g: probably!
18:20 <    bblack> greg-g: (give me a few to switch tracks and I'll poke around at things)

18:20 <+thciprian> hmm lots of "Catchable fatal error: Argument 2 passed to 
                   Wikibase\Client\Hooks\ParserLimitHookHandlers::__construct()" 
                   https://gerrit.wikimedia.org/r/#/c/225474/ merged yesterday...
...
18:39 <+thciprian> so, mediawiki03 doesn't have any traffic, so doing curl -I -H 'host: 
                   en.wikipedia.beta.wmflabs.org' localhost/wiki/UserMergefrtiwn and then checking the 
                   error_log shows the only error is that wikibase one