Re: [Xen-users] Monitoring Xen via Nagios

[Jan Vejvalka <jan.vejvalka@xxxxxxxxxxxxxxx>]

Hi Jason,

> > > In order to monitor something, you need to define what it is you
> > > want to monitor. "Xen health" isn't something specific, you need
> > > to be quite specific as to what you want to monitor.
> > Yes, All options are good but I mean is that I want to know when a
> > Xen VM stopped or failed or even Xen service not worked correctly.
> > Can you show me how can I write this config
> Sorry, but I can't - as I said I don't monitor Xen directly, I just
> monitor the guests and work on the basis that if the guests are
> running then Xen must be working.
A good start might be to check the existing xen-oriented Nagios plugins,
to learn from them and perhaps to modify them to your specific needs.
Cf.
https://exchange.nagios.org/directory/Plugins/Operating-System/*-Virtual-Environments/Xen
and
https://exchange.nagios.org/directory/Plugins/Operating-System/*-Virtual-Environments/Others/Check-XenServer/details 
.
I myself would be much interested in your experience with these :-).

> One is to use SNMP - basically, if the device does SNMP and you know
>  the right OID to use, you can monitor anything covered by the SNMP
> agent on the device. That could be detecting a link down on a switch,
> or the operating mode of a UPS, or ...
>
> For "computers", you can also install NRPE - Nagios Remote Plugin
> Execute.
Plugins are, clearly, the non-SNMP, i.e. Nagios/NRPE way to do it. For
SNMP, it is principially the same: you need some agents to feed the OIDs
(parameters you want to monitor) into the SNMP system and then you can
use SNMP tools (also Nagios, cf. http://www.math.wisc.edu/~jheim/snmp/)
to do the monitoring. IMHO, SNMP is more standardized than NRPE, and
Nagios/NRPE was easier for me to run than Nagios/SNMP, because of the
(mostly mental, I think) overhead of the SNMP infrastructure. OTOH,
SNMP is more standardized than NRPE and many things are ready to use
(e.g. detailed openvswitch monitoring, as Simon wrote) just that by
quick g**gling I can't find anything useful (for me) about SNMP and
Xen... more than https://github.com/cvarta/xen-monitoring .

I think that Zabbix has also something to monitor Xen, but I'm not sure.

HTH, and let us know.

Jan






_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
https://lists.xen.org/xen-users