cap-theorem

Two points I don’t understand about RDBMS being CA in CAP Theorem : 1) It says RDBMS is not Partition Tolerant but how is RDBMS any less Partition Tolerant than other technologies like MongoDB or Cassandra? Is there a RDBMS setup where we give up CA to make it AP or CP? 2) How is it CAP-Available? Is it through master-slave setup? As in when the master dies, slave takes over writes? I’m a novice at DB architecture and CAP theorem so please bear with me. A lot of databases now actually have different configurations and depending on the settings you set, it can be either CA, CP, AP, etc but can

There is a great talk here about simulating partition issues in Cassandra with Kingsby's Jesper library . My question is - with Cassandra are you mainly concerned with the Partitioning part of the CAP theorem, or is Consistency a factor you need to manage as well? Cassandra is typically classified as an AP system, meaning that availability and partition tolerance are generally considered to be more important than consistency. However, real world systems rarely fall neatly into these categories, so it's more helpful to view CAP as a continuum. Most systems will make some effort to be consistent