Database - Distributed Databases
Exercise : Distributed Databases - True or False
- Distributed Databases - General Questions
- Distributed Databases - True or False
With failure transparency, all of the actions of a transaction are committed or none of them are committed.
Each site (or node) in a distributed system is subject to the same types of failure as in a centralized system.
Replication may use either synchronous or asynchronous distributed database technologies, although asynchronous technologies are more typical in a replicated environment.
Synchronization for pull replication is less disruptive and occurs only when needed by each site, not when a central master site thinks it is best to update.
With asynchronous technology, if any copy of a data item is updated anywhere on the network, the same update is immediately applied to all other copies or it is aborted.