Virtuoso provides several replication methods:
Non-incremental snapshot replication
Non-incremental snapshot replication is useful when the data is changed infrequently or when data is modified in large portions at a time.
Incremental snapshot replication
Incremental snapshot replication is useful when the data is changed frequently and implements incremental updates using a snapshot log.
Bi-directional snapshot replication
Bi-directional snapshot replication allows data to be modified on both publisher and subscribers. This is useful read-write access to the replicas is needed.
Snapshot replication can be used in heterogeneous environments to set up replication between non-Virtuoso databases.
Transactional replication allows subscribers to receive data in near-real time. ACID properties of transactions are maintained in transactional replication as well. Virtuoso implements the following flavors of transactional replication:
Ordinary transactional replication
Ordinary transactional replication flavor implements one-way data replication and is useful when data can be modified on only one server with other servers participating in replication providing read-only data access.
Bi-directional transactional replication
Bi-directional transactional replication is useful when there is a requirement to allow data updates on multiple servers.
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