Database Reference
In-Depth Information
Notably, the location is still Austin. This leads to an important observation about write
timestamps: as well as giving Cassandra information about resolving conflicts at read
time, they're also used to determine at write time whether a given value is more up-to-date
than the value Cassandra currently has stored. This is true even in a single-replica, single-
node configuration such as the one we have set up for development.
Since the timestamp of our second update was earlier than the timestamp of our first up-
date, Cassandra recognizes that the original value is actually a more
recent
version of the
data, and thus discards the second update altogether.
