Question: is there any interest in a WMI client for Linux?

[Hans Engelen]

Well in terms of need, I have (and I am sure there are others, seen messages
to that effect pass the mailing lists on a regular basis) a defenite need to
also monitor more then WMI provides and for that matter check_nt does not
have either. I am sure there are many such things but these are high on my
list right now :

- Monitor file sizes (got a couple of processes that dare write transaction
logs that sometimes go up to 2 GB in a matter of days at which point the 2
GB filesize problem on Windows causes the application to die a horrible
death)
- Monitor Directory Sizes (not so much for me but saw that pass by on the
list a few days ago)
- File Age (nc_net has this) to detect hanging processes for example.
- Log parser with a read-mark (so it only reads new lines since last check).
Mind you not clear on how to work this into Nagios. I mean, I would want to
have nagios monitor a log file for say an error like 'ORA-xxxxx no active
database connection' (or whatever the exact error is) and raise an alert at
that point. What I am not sure about is how to then let Nagios know the
error has been fixed. I suppose I coul parse the whole log every time and
archive logs when I restart the process at which point the ORA-xxxxx would
no longer be present in the log but the problem is these logs are huge and
would probably constitute a huge performance hit if read completely on a
regular basis. It's a tricky one.

Either way unless I am mistaken these things are not easily done in WMI if
they are even possible at all. But there is no denying that WMI gives you
access to a wealth of information. It will be interesting to see how you do
it though. Securitywise it seems like a challenge for sure.  And performance
wise it is not easy either. Count me in though if you want it tested.

Cheers.
Hans

On 2/14/06, Ron Gage <ron at rongage.org> wrote:
>
> Quoting Ryan Wilcox <rwilcox at mobitrac.com>:
>
> <snip>
>
> > ron... it is understood that WMI would give users the ability to go way
> > above and beyond the 'check_nt' command... what other capability are you
> > interested in building in that 'check_nt' doesn't provide?
>
> From a monitoring perspective, what more would you need than WMI?  You get
> direct access to the perfmon counters and hardware enumeration.  You can
> even
> enumerate services and their state via WMI (the Win32_BaseService object).
>
>
>
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