Re: option -i for monitor?

Hello Dave,

one more question that you answered... Many thanks again for this bunch of
useful info! 

> >  A question: what does the option "-i" does? 
> 
> This relates to the difference between monitoring an *instance*
> (i.e. a fully-specified OID, as per snmpget) and monitoring an
> *object* (which might have several instances).

Thank you. 
I couldn't find relevant documentation on this. 


> > | monitor   -i      "proc"  prErrorFlag.1 != 0
> 
> prErrorFlag.1 is a fully-qualified instance - a single value.
> Hence the '-i' flag prevents the agent trying to expand it
> any further.   The equivalent "wildcarded" entry
> 
>     monitor           "proc"  prErrorFlag   != 0
> 
> would monitor *all* the procTable entries, and would generate
> a trap if any of the error flags was set (rather than having
> to list them each individually).

Yes... But the problem is that monitoring the entire table, like the
procTable, does *not* work on Solaris. We experienced it, and this was
confirmed by the README.solaris:

| The documentation suggests using...
| 
| monitor -o prNames -o prErrMessage "process table" prErrorFlag != 0
| 
| to monitor all processes.  This will fail with ambiguous results.
| 
| To monitor processes, put a separate monitor line for each process.
| 
| For example:
| ######
| proc smail
| proc mdlogd
|
| monitor -r 30 -i -o prNames.1 -o prErrMessage.1 "Process smail"
prErrorFlag.1 !=0

That's exactly what I did... 


> > whereas the same monitor without the "-i" option doesn't
> > (apparently) send anything. 
> 
> Hmmm....   Strictly speaking, that ought to work.
> (Wildcarding a fully-qualified instance is perfectly valid).
> 
> Unfortunately, neither the old nor the new implementation
> seem to handle this correctly.  I'm probably not going to
> have a chance to investigate this until the 5.3 pre-release
> cycle starts up, but if you can remind me in a couple of
> weeks, I'll have a look at it then.

Ok, I will. Actually, that would be cool if monitoring wildcarded entries
would work too. 

Loïc. 

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those who don't. 

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