ZyXEL Communications ZyWALL USG-Series - Application Watchdog

Chapter 60 Watchdog Timer
ZyWALL / USG (ZLD) CLI Reference Guide
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60.3 Application Watchdog
The application watchdog has the system restart a process that fails. These are the app-watchdog
commands. Use the
configure terminal command to enter the configuration mode to be able
to use these commands.
Table 234 app-watchdog Commands
COMMAND DESCRIPTION
[no] app-watch-dog activate Turns the application watchdog timer on or off.
[no] app-watch-dog auto-recover If app-watch-dog detects a dead process, app-watch-dog will try to auto recover.
The no command turns off auto-recover
[no] app-watch-dog console-
print {always|once}
Display debug messages on the console (every time they occur or once). The no
command changes the setting back to the default.
[no] app-watch-dog cpu-
threshold min <1..100> max
<1..100>
Sets the percentage thresholds for sending a CPU usage alert. The ZyWALL / USG
starts sending alerts when CPU usage exceeds the maximum (the second threshold
you enter). The ZyWALL / USG stops sending alerts when the CPU usage drops back
below the minimum threshold (the first threshold you enter). The no command
changes the setting back to the default.
[no] app-watch-dog interval
<6..300>
Sets how frequently (in seconds) the ZyWALL / USG checks the system processes.
The no command changes the setting back to the default.
[no] app-watch-dog retry-count
<1..5>
Set how many times the ZyWALL / USG is to re-check a process before considering it
failed. The no command changes the setting back to the default.
[no] app-watch-dog alert Has the ZyWALL / USG send an alert the user when the system is out of memory or
disk space.
[no] app-watch-dog disk-
threshold min <1..100> max
<1..100>
Sets the percentage thresholds for sending a disk usage alert. The ZyWALL / USG
starts sending alerts when disk usage exceeds the maximum (the second threshold
you enter). The ZyWALL / USG stops sending alerts when the disk usage drops back
below the minimum threshold (the first threshold you enter). The no command
changes the setting back to the default.
[no] app-watch-dog mem-
threshold min <1..100> max
<1..100>
Sets the percentage thresholds for sending a memory usage alert. The ZyWALL /
USG starts sending alerts when memory usage exceeds the maximum (the second
threshold you enter). The ZyWALL / USG stops sending alerts when the memory
usage drops back below the minimum threshold (the first threshold you enter). The
no command changes the setting back to the default.
app-watch-dog reboot-log flush Flushes the reboot log record.
[no] app-watch-dog sys-reboot If auto recover fail reaches the maximum retry count, app-watch-dog reboots the
device. The no command turns off system auto reboot.
show app-watch-dog config Displays the application watchdog timer settings.
show app-watch-dog monitor-list Display the list of applications that the application watchdog is monitoring.
show app-watch-dog reboot-log Displays the application watchdog reboot log.