This topic is only applicable on Symphony grid.
TCP connection attributes are configured on a cluster basis to optimize data throughput over network connections. These attributes are set in the sd.xml configuration file.
The attributes should be configured for each connection endpoint in the Symphony environment, i.e., the client, Session Director, and session manager. The following table lists the relevant attributes.
Sample configuration in sd.xml:
There may be situations where global TCP connection attributes are not appropriate for all connection endpoints in the system; for example, remote clients that are geographically distant from the cluster may require more time to send messages over the network. It is possible to override the system-wide attributes on the remote client host by setting environment variables in the OS shell before starting the client process. This method of overriding system-wide attributes can also be applied to remote hosts that are running services.
The environment variables correspond to the four TCP connection attributes described previously:
Once the environment variables have been created, you can adjust their values to suit the network environment.