HP Reliable Transaction Router - Manual (Page 51)

3
Reliability Features
This chapter addresses:
• RTR server types
• Failover and recovery
• Recovery scenarios
RTR Server Types
Reliability in RTR is enhanced by the use of:
• Concurrent servers
• Standby servers
• Shadow servers
• Callout servers
• Router failover
Note that, conceptually, servers can be contrasted as follows:
• Concurrent servers handle similar transactions which access
the same data partition and run on the same node.
When transaction throughput is constrained by your server
application, consider adding a second instance of your server
application with a concurrent server.
• Shadow servers handle the same transactions and run on
different nodes.
Reliability Features 3–1