Best regards, Zheng Zhibin
在 2012-1-21，上午1:01，Dmitry Demeshchuk <demeshc...@gmail.com> 写道： > Generally, using eventually consistent databases for e-commerce sounds > too risky. > > But I know that there was some e-commerce stealth startup using Riak > for their needs (probably not for all the data though, I don't know > any details). Amazon uses Dynamo, which is quite similar to Riak. So > NoSQL can be used in this niche somehow. > > Also, intuitively, most of the consistency problems might be avoided > by setting all w/dw values to maximum (better set r to maximum too, of > course). > > The hardest task I see here is to organize transactions for the cases > like "we remove a product from database and we should alter all the > orders that contain this product". There is a lib which can help for this in some extent. github.com/mochi/statebox There is a Riak version as well: github.com/mochi/statebox_riak Write for free, ops in read. > > On Fri, Jan 20, 2012 at 5:43 PM, Ahmed Al-Saadi <thaterlang...@gmail.com> > wrote: >> Hello: >> >> After reviewing a few options in the NoSQL space, I am considering using >> Riak for an e-commerce platform. I gather that atomicity (transactions) is >> not supported while durability can be enforced per request (using dw=1 or, >> at least, w=<suitable value>?). In other words, for most non-critical >> reads/writes, r/w can be optimized for availability while critical writes >> must be committed to disk (or to "enough" nodes?), sacrificing availability >> in the process. >> >> Does this describe the state-of-affairs or am I missing something? >> >> -- >> Ahmed Al-Saadi >> Sent with Sparrow >> >> >> _______________________________________________ >> riak-users mailing list >> riak-users@lists.basho.com >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > > > > -- > Best regards, > Dmitry Demeshchuk > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
