CAP principles / theorems
Distributed Systems
CAP principle, also known as CAP theorem means that in a distributed system, Consistency (consistency), Availability (availability), Partition tolerance (fault-tolerant partition> properties), the three can not have both
Eureka follow the principles ap
ACID
Affairs
Atomicity (Atomicity)
Atomicity means that a transaction is an indivisible unit of work operations in a transaction either occur or do not occur.
Consistency (Consistency)
the integrity of the data before and after the transaction must be consistent.
Isolation (Isolation)
transaction isolation when a plurality of users concurrent access to the database, the user opens a database for each transaction, the operation data can not be disturbed by other transactions, for isolation between a plurality of concurrent transactions.
Persistent (Durability)
Persistence means that once a transaction is committed, it changed data in the database is permanent, then even if the database fails nor should it have any impact
