On Thu, Jul 30, 2015 at 6:31 AM, David Causse <dcausse@wikimedia.org> wrote:

The cross wiki queries I know so far are :
- all wikis can query commons.wikimedia.org index
- itwiki will query all its sister projects (itwiktionary, itwikivoyage, itwikibooks ...)
- maybe more

So it's hard to work with mixed settings with the current architecture :(

That's it. For now ;-)

And technically itwiki is dogfooding the IW search, so if we had to turn it

off temporarily to support a migration it'd be ok.

Generally we've tried to avoid doing this though by making mapping/analysis

changes in a back-compat way or hiding the alternative behavior behind a

feature flag until we've completed reindexing.

-Chad