I wasn't saying that MongoDB was similar in terms of master-master vs.
master-slave, I was saying MongoDB was similar in that it implements
conflict resolution rather that transactions.

http://www.mongodb.org/display/DOCS/Atomic+Operations

"MongoDB supports atomic operations on single documents.  MongoDB does
not support traditional locking and complex transactions for a number
of reasons:..."

And that MongoDB implements a currency check ("Update if Current") to
resolve conflicts.


On Jul 17, 11:04 am, Sergey Didenko <[email protected]> wrote:
> Tim, I think you mean CouchDB, which indeed is "master-master". MongoDB is
> extended "master-slave".
>
> On Sun, Jul 17, 2011 at 6:45 PM, Tim Robinson <[email protected]>wrote:
>
>
>
>
>
>
>
> > MongoDB is similar, in that it supports conflict resolution, only I
> > believe you only have the option for the last write wins. MongoDB is
> > better suited to an embedded db model, that doesn't have to support
> > large datasets... so if you're OK with the last write wins model - go
> > for mongo.

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