81
C
H A P T E R
9
Automatically restarting a failed Manager with Manager
Watchdog
This section provides the following information on starting a failed Manager with Manager
Watchdog:
Introduction (on page
81
)
How the Manager Watchdog Works (on page
81
)
Installing Manager Watchdog (on page
82
)
Starting Manager Watchdog (on page
82
)
Using Manager Watchdog with Manager in an MDR configuration (on page
82
)
Tracking Manager Watchdog activities (on page
82
)
Introduction
The Manager Watchdog feature is designed to restart the Manager if the Manager
crashes, potentially bringing the Manager back online before MDR enables.
The Manager Watchdog monitors the Manager process on the Manager server periodically
for availability. If Manager Watchdog detects that the Manager has gone down
unexpectedly, it restarts the service automatically. (It does not restart the Manager if the
Manager has been shut down intentionally.)
How the Manager Watchdog Works
Manager Watchdog runs as a separate process and monitors Manager through the
Windows OS Services model. Manager Watchdog polls Manager every 10 seconds. If the
Manager Watchdog does not detect the Manager during a polling period, it waits 30
seconds and then restarts the Manager service automatically. Manager Watchdog will
make five attempts to restart the Manager and then, if it has not succeeded, it will exit.
Manager Watchdog, by default, is a manual service; you must explicitly start it.
Caution 1:
You can instead change this setting to be automatic if you wish the
service to start automatically after a system reboot.
Caution 2:
If you have chosen to change the Manager service setting from its
default (Auto) to "Manual," (during a troubleshooting session, for example) then
consider doing the same for Manager Watchdog. This will prevent the Manager
Watchdog from restarting Manager automatically.
