[Nut-upsuser] occassional problem wtih upslog and apc ups units via snmp ... [NA] status

[Charles Lepple]

On Aug 13, 2015, at 12:45 PM, Bob Brown <bbrown at harpercollege.edu> wrote:
> 
> Os is redhat enterprise, kernel 2.6.18-164.2.1.e15
> NUT is apparently 2.4.1
> It was installed by tar.
>  
> Monitoring a lot of apc UPS units—mostly Smart-UPS of various flavors, also a Silcon DP380E.
>  
> Normally works just fine…  “upslog” writes status log every 30 seconds with various parameters..
>  
> Every so often, one of the UPS units has a log entry of:
>  
> 20150812+035542+NA+NA+NA+[NA]+NA+NA+NA
>  
> When it normally looks like:
>  
> 20150813+114309+100.00+115.00+39.00+[OL]+25.00+60.00+1020.00
>  
> What does it mean when it  puts NA in the log file?

Every log interval, each variable is fetched from the server, and if there is an error retrieving that value at that time, "NA" is logged:

https://github.com/networkupstools/nut/blob/master/clients/upslog.c#L203

Since they are all "NA" at the same time, it is likely that there is a communication problem, either between upslog and upsd, or between upsd and the driver. In either case, there is probably a syslog message describing the problem in more detail.

-- 
Charles Lepple
clepple at gmail