We are using OpenNMS to monitor a pool of servers, and we have a problem with SMTP in one particular box. OpenNMS is "spamming" us all the time with DOWN/RESOLVED messages for that particular service in that server, and I wanted to mute those notifications momentarely but couldn't find how to do that. I know that I can disable ALL notifications or disable SMTP in ALL servers, but that's not what I want.
I'm used to muting a particular service in Nagios, but is it possible in OpenNMS?
We have a linux VM running under XenServer that reboots itself with no apparent reason. Checking the /var/log files in Xen we noticed that it's sending a force shutdown to the VM, like this:
messages:Dec 6 15:01:07 XenSrvDell2 BLKTAP-DAEMON[7309]: /local/domain/0/backend/tap/19/51728: got start/shutdown watch on /local/domain/0/backend/tap/19/51728/tapdisk-request
What we can't find is the reason why the force-shutdown was initiated. Is there any "higher level log" that might tell us who or why triggered the shutdown?