Watchdog Service

The WatchdogService provides methods for starting, stopping, and updating a hardware watchdog if it is present on the system. Once started, the watchdog must be updated to prevent the system from rebooting.

To use this service, select the WatchdogService option located in the Services area as shown in the screen capture below.

This service provides the following configuration parameters:

• enabled - sets whether or not this service is enabled or disabled. (Required field.)

• pingInterval - defines the maximum time interval (in milliseconds) allowed between two watchdog refreshes to prevent the system from rebooting. (This is a required field.) The interval must be set to a value less than the system's watchdog timeout; otherwise, the watchdog will not be refreshed in time, resulting in a system reboot. On most systems, you can check the watchdog timeout using the following command:

  Bash

  wdctl <watchdog-device>

  The wdctl tool allows to change the default timeout value. Refer to specific man page for details.

• Watchdog device path - sets the watchdog device path. (Required field.)

• Reboot Cause File Path - sets the path to the file that will contain the reboot cause information. (Required field.)