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Configuring Actions for SRC VTA Event Handlers (SRC CLI)

 

Use the following statement to configure an action that can be invoked by one or more event handlers:

Note

We recommend that when you configure event handlers and their actions, you ensure that for any given event, all database operations are performed before any other operations that have permanent effects. This is because if a database error occurs—for example, due to normal contention for database records between different event threads—the SRC VTA rolls back the current database transaction (no changes are made to the database) and then restarts processing the event. If the event performs some other operation other than database operations before such an error, such as start a service, then that other operation is performed again when the event is reprocessed following the error.

  1. From configuration mode, access the statement that configures an action and specify a name for the action. For example, to configure an action called act1 in the SRC VTA group called vta1:

    Note

    You must not specify the action name as all, because the show vta statistics performance group name action command uses the all option to display event statistics of all actions.

  2. Specify a function you want the action to call. For example, to have the action call the db-engine-calculate-usage function:

  3. (Optional) Specify any input parameters required for the function.

    The parameters that you need to set depend on what function you specified. Some functions require no input parameters. You can use the “?” completer to see what parameters need to be set, or see Configuring Actions Overview for a complete list of functions and their associated input parameters.

  4. Specify what you want the action to do in response to an error. For example, to configure the action to abort processing if an error occurs:

  5. Verify your configuration.

  6. Commit your configuration.