How does Xymon save state between server reboots?
list David Mills
Hi, All... Just curious: does anyone know how Xymon retains host / service state information between reboots of the Xymon server? I mean, if you have Host_A with services in various states, and then you bounce the Xymon server, does the server re-acquire all the services / states for Host_A from scratch, or does it retain any state information from somewhere on disk? Thanks for any pointers... david ~~~~~~~~~~~~~~~~~~~ David Mills Systems Administrator Northrop Grumman XXX-XXX-XXXX user-eb64c112f0e9@xymon.invalid
list Japheth Cleaver
▸
Just curious: does anyone know how Xymon retains host / service state information between reboots of the Xymon server? I mean, if you have Host_A with services in various states, and then you bounce the Xymon server, does the server re-acquire all the services / states for Host_A from scratch, or does it retain any state information from somewhere on disk?
xymond is (normally) configured with the --checkpoint-file and --restart
options set, which specifies the location of the file where all of this is
saved between restarts.
'man xymond'
--checkpoint-file=FILENAME
With regular intervals, xymond will dump all of its internal state to
this check-point file. It is also dumped when xymond terminates, or when
it receives a SIGUSR1 signal.
--checkpoint-interval=N
Specifies the interval (in seconds) between dumps to the check-point
file. The default is 900 seconds (15 minutes).
--restart=FILENAME
Specifies an existing file containing a previously generated xymond
checkpoint. When starting up, xymond will restore its internal state
from the information in this file. You can use
the same filename for "--checkpoint-file" and "--restart".
Regards,
-jc
list David Mills
Thanks, JC! ;-) -----Original Message----- From: user-87556346d4af@xymon.invalid [mailto:user-87556346d4af@xymon.invalid] Sent: Monday, January 28, 2013 7:07 PM To: Mills, David (IS) Cc: xymon at xymon.com Subject: EXT :Re: [Xymon] How does Xymon save state between server reboots?
Just curious: does anyone know how Xymon retains host / service state information between reboots of the Xymon server? I mean, if you have Host_A with services in various states, and then you bounce the Xymon server, does the server re-acquire all the services / states for Host_A from scratch, or does it retain any state information from somewhere on disk?
xymond is (normally) configured with the --checkpoint-file and --restart options set, which specifies the location of the file where all of this is saved between restarts. 'man xymond' --checkpoint-file=FILENAME With regular intervals, xymond will dump all of its internal state to this check-point file. It is also dumped when xymond terminates, or when it receives a SIGUSR1 signal. --checkpoint-interval=N Specifies the interval (in seconds) between dumps to the check-point file. The default is 900 seconds (15 minutes). --restart=FILENAME Specifies an existing file containing a previously generated xymond checkpoint. When starting up, xymond will restore its internal state from the information in this file. You can use the same filename for "--checkpoint-file" and "--restart". Regards, -jc