Sublime

• Write Operations - When data is written, it's appended to the end of a log file. This is much more efficient than merging it in the current data and reduces the latency of writes.


• Read Operations - When you need

If R = 1 and W = N, we optimize for fast read. If W = 1 and R = N, we optimize for fast write. Durability is not guaranteed in the presence of failures.

The configuration of W, R and N is a typical tradeoff between latency and consistency. If W = 1 or R = 1, an operation will be returned pretty quickly because a coordinator only needs to wait for a response from any of the replicas. If W or R > 1, the system has better consistency but the query will be slower because the coordinator has to wait

They allow inconsistent values from concurrent writes to enter the system and force the client which reads the values to reconcile. The next section explains how reconciliation works.