Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 2 Fault Tolerance and Load Balancing in a Rendezvous Administration Domain : Multiple Load-Balanced Servers in a Subnet

Multiple Load-Balanced Servers in a Subnet
You can install multiple load-balanced servers on different machines in a subnet.
When you install TIBCO Administrator, you are prompted to install a primary or a secondary server.
All servers in a load balanced group must use the same TIBCO Rendezvous service and port properties. In Figure 3, all servers use the default TIBCO Rendezvous daemon. When a client sends a request for information, the next available server responds (this speeds up responses in a high-volume situation). When a client writes information, the primary server picks up the information and enters it into the appropriate project. It then automatically sends update notices to all secondary servers in the domain
Figure 3 Multiple Load-Balanced Servers in One Administration Domain
Options
You may decide to take advantage of the available options listed in Options.
Updates are propagated automatically to secondary servers, which persistently store the updated data. However, this is a push process with version checks to handle synchronization issues rather than a distributed two-phase commit. To ensure that persistent storage for the server is always synchronized, a database or shared file system must be used. Otherwise, there is a small window of time during which an update may not have been propagated. If the primary server goes down at that time, the secondary server is not able to receive the update until both the secondary and the primary server are running again.

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved