Tunable Consistency

• NWR Notation
• N – Number of Copies
• W – Write Copies to complete
• R – Read copies to be accessed
• W=N
• W=1;R=N
• N>W>1
• W+R>N
• Quorum Assembly
• Latest Value Always Included even if mixed with older values

Write more Important than Read

Eventual Consistency

Quorum Assembly