Do you have doubts about whether it would work? Seems fairly straightforward.
On Friday, January 5, 2018 at 3:59:29 PM UTC-5, CDA wrote: > > > Below is an excerpt about horizontal scaling from Chapter 13 in the book. > Has any one successfully implemented this using web2py? > > It is also possible to connect to different databases depending on the > requested action or controller. In a master-slave database configuration, > *some* *action performs only a read* and *some performs both read/write*. > The former can safely connect to a slave db server, while the latter should > connect to a master. So you can do: > > > 1 > 2 > 3 > 4 > 5 > 6 > > if request.function in read_only_actions: > db = DAL(sample(['mysql://...1','mysql://...2','mysql://...3'], 3))elif > request.action in read_only_actions: > db = DAL(shuffle(['mysql://...1','mysql://...2','mysql://...3']))else: > db = DAL(sample(['mysql://...3','mysql://...4','mysql://...5'], 3)) > > > where 1,2,3 are slaves and 3,4,5 are masters. > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
