A (large) customer recently asked me to implement a feature whereby they
could monitor zone activity via syslog. The motivation is that for this
customer, any zone state change not during maintenance windows is a cause
for alarm.
I prototyped this feature last night and I'd like to solicit your
feedback on it. Currently, the messages look like this on zone
bootup:
Oct 27 01:37:50 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (boot)
This on reboot:
Oct 27 01:37:57 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (reboot)
This on reboot from inside the zone (reboot(1m)):
Oct 27 01:37:57 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (zone initiated reboot)
This on "halt"
Oct 27 17:25:04 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "installed" (halt)
This on a "halt" which got stuck:
Oct 27 17:37:19 xanadu zoneadmd[136912]: [ID 230691 daemon.info] zone norton
state changed to "down" (halt)
Several reboots in a row look like this:
Oct 27 01:37:57 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (reboot)
Oct 27 01:38:12 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (reboot)
Oct 27 01:39:22 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "running" (reboot)
A failed reboot would look like this:
Oct 27 01:37:57 xanadu zoneadmd[135850]: [ID 230691 daemon.info] zone norton
state changed to "installed" (reboot)
So here are my questions:
- Do you think this is useful?
- Do you think the log level (Info) is right? daemon.info is
*not* logged by default, whereas notice is. (So basically: do
you want these messages in /var/adm/messages by default, or not?)
- Do you think the facility of 'daemon' is OK? With Solaris
syslog you can't AFAIK route messages based on the value of
'program' (which in this case is 'zoneadmd').
- Any comment about whether the info provided is sufficient?
For example, when a zone reboots it goes through numerous
state transitions, but I chose to express this as one
big transition-- does that work for everyone?
Thanks,
-dp
--
Daniel Price - Solaris Kernel Engineering - [EMAIL PROTECTED] - blogs.sun.com/dp
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