There are a several ways to approach this. The simplest is to just take last-write-wins, which is the only option some distributed databases give you. For cases

There are a several ways to approach this. The simplest is to just take last-write-wins, which is the only option some distributed databases give you. For cases where this isn't ideal, you resolve write-conflicts in a couple ways. One way is to write domain-specific logic that knows how to resolve your values. For example, your models might have some state that only happen-after another state, so conflicts of this nature resolve to the 'later' state. Another approach is to use data-structures or a library designed for this, like CRDTs. Some resources below: A comprehensive study of Convergent and Commutative Replicated Data Types http://hal.archives-ouvertes.fr/inria-00555588/ http://hal.archives-ouvertes.fr/inria-00555588/ https://github.com/reiddraper/knockbox https://github.com/reiddraper/knockbox https://github.com/aphyr/meangirls https://github.com/aphyr/meangirls https://github.com/ericmoritz/crdt https://github.com/ericmoritz/crdt https://github.com/mochi/statebox https://github.com/mochi/statebox