Configuring heartbeat messaging
Nodes in a cluster use heartbeat messaging to monitor the status of the other nodes in the cluster. On System—Properties, the administrator configures System Heartbeat, as shown in
Figure 9‑5.
Figure 9‑5 Configuring System Heartbeat
System Heartbeat consists of properties for measuring messaging frequency. System Heartbeat properties are:
Heartbeat send period
The interval to send a heartbeat message, typically 30–40 seconds. Change this property to increase or decrease the number of heartbeat messages.
Heartbeat failure period
The period in which the cluster nodes determine that another node is within the heartbeat failure period, typically 90–100 seconds. If the monitoring nodes do not receive a response within this period, the monitored node is assumed to be down.
