jargon

Backend & systems·Consistency and replication

two writes to the same key conflicted and the system kept the one with the later timestamp and silently threw the other away.

Last-write-wins

Also calledLWW, conflict resolution

A conflict resolution strategy that compares timestamps and discards the loser. It is simple, requires no application logic, and loses data by design. It is also only as good as the clocks involved, which on separate machines are not as synchronised as the strategy assumes.

Commonly confused with