These configuration items define Transformer's application-level heartbeat messaging.
heartbeat-symbol specifies the symbol name (subject) of the application level heartbeat object.
The name can contain the parameters %h and %a At run-time, %h is replaced by the host name of the machine on which the Transformer is running, and %a is replaced by the Transformer's DataSource application-name.
Default value: NULL (application-level heartbeats are disabled)
heartbeat-symbol-time specifies the time interval in seconds between updates of the time stamp in the application-level heartbeat object.
Default value: 30.0 seconds