The HEARTBEAT_TIMESTAMP column in the heartbeat seed table must be updated periodically by a database job. The default heartbeat interval is 1 minute and this interval can be specified or overridden using from the command line or the Administration Service web interface.

For Oracle Database, the database job is created automatically. For all other supported databases, you must create background jobs to update the heartbeat timestamp using the database specific scheduler functionality.

See ADD HEARTBEATTABLE, ALTER HEARTBEATTABLE for details on updating the heartbeat table.