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rollback
When a transaction has been committed on the primary
database but cannot be committed on its shadow, the committed
transaction must be removed or rolled back to restore the
database to its pre-transaction state.
router
The RTR role that manages traffic between RTR clients and
servers.
RTR configuration
The set of nodes, disk drives, and connections between them
used by RTR.
RTR environment
The RTR run-time and system management areas.
RTRData object
An instance of the C++ API RTRData class. This object contains
either a message or an event. It is used for both sending and
receiving data between client and server applications.
secondary
See shadow.
server
A server is always a server application or process, one that
reacts to a client application’s units of work and carries them
through to completion. This may involve updating persistent
storage such as a database file, toggling the switch on a device,
or performing another pre-defined task. In the context of RTR, a
server must run on a node defined to have the backend role.
In other contexts, a server may be a physical node, but in RTR
and in this document, physical servers are called backends or
nodes.
server classes
C++ foundation classes used for implementing server
applications.
Glossary–8