Typically client applications connect to servers that provide services such as access to databases. Thus, when servers become unavailable, client applications disconnect. Although High Availability (HA) improves this behavior, in a true HA environment, seamless migration is necessary between servers. For example, when a server shuts down for scheduled maintenance, the Open Client migration feature allows Client-Library to migrate client connections to an available server. This feature is especially useful in a Shared Disk Cluster (SDC) environment. In addition to scheduled maintenance, the new feature can be used in cluster load balancing or when using special resources.
The Open Client migration feature works without the intervention of client applications, duplicating the client application’s environment from the original server to the new server. The majority of client applications will not notice the change in servers.
To maximize the number of client applications that can be migrated, simply replace the Open Client shared libraries when using this feature.
DB-Library does not support connection migration.
