[Labs-l] Database corruption

Tue May 24 21:05:18 UTC 2016

Is database corruption considered a priority issue for Labs? The enwiki 
database replica has been corrupt since about 30 April; I posted a bug 
report[1] on 2 May, but it hasn't even been triaged yet. In the meantime, 
there seems to have been further corruption within the past 24-36 hours, 
as evidenced by tools that report link counts (based on the replica) that 
are highly inaccurate when checked on the live wiki.

I'm surprised this isn't causing problems for other users' tools (or at 
least that no one has complained about it). At a minimum, I know that the 
pagelinks table in the replica contains entries that don't exist on the 
live wiki. I would assume it likely is also missing some entries that do 
exist on the live wiki, although this is much harder to confirm. Other 
tables may be inaccurate, as well.

[1] https://phabricator.wikimedia.org/T134203