Heartbeat check function

The HULFT Clustering function can check whether the HULFT Send daemon, Receive daemon, and Observe daemon are all running successfully.

The heartbeat check function is used depending on the type of the clustering software and its operational requirements.

This function can be executed with the Heartbeat commands which are utilities exclusive to the HULFT Clustering function.

For details, refer to HULFT Clustering function utilities.

Figure 2.5 Heartbeat Check

1) Running of the heartbeat command

Each Daemon Heartbeat command issues a heartbeat check request to the corresponding daemon.

2) Notification of the daemon heartbeat check result

If the daemons are running successfully, the Daemon Heartbeat Check commands return '0.' If the daemons are not running successfully, the commands return a code other than '0.'

= Remarks =

For details on the codes that are returned by the commands, refer to Error Codes and Messages.