Replication Agent Tuning

Tune or optimize Replication Agent performance by adjusting some of the Replication Agent configuration parameters.

You can set or change a Replication Agent configuration parameter with the ra_config command.

Because the Replication Agent overwrites its entire configuration file whenever ra_config or ra_set_login is invoked, Sybase recommends that you do not edit the configuration file. Also, each Replication Agent instance reads its configuration file only at start-up. You must use the ra_config command if you want a new configuration parameter value to take effect before the instance is shut down and restarted.

All Replication Agent configuration parameters can be changed when the Replication Agent instance is in Admin state. Some configuration parameters cannot be changed when the instance is in Replicating state.

For more information about the ra_config command and Replication Agent configuration parameters, see the Replication Agent Reference Manual.

• Tuning Customization
  Generally, the Replication Agent default configuration values provide optimal performance.
• Parameters and Variables
  The parameters that affect performance and tuning are listed here.
• Optimal Performance Tuning
  Knowledge of the replication environment and Replication Agent statistics is required to tune Replication Agent for optimal performance. A trial-and-error approach may be necessary to achieve optimal performance for each environment.
• End-to-End Tuning
  It may be beneficial in some situations to sacrifice optimal Replication Agent performance to achieve better Replication Server performance and better end-to-end performance through the entire replication system.