Re: DisMan mteTriggers Not Firing

2008/6/30 Jamuel Starkey <[email protected]>:

> To trap when a process is in error, then look for prErrorFlag !=0:
> monitor -o prName -o prErrMessage "procTable" prErrorFlag == 0

I presume you mean "prErrorFlag != 0",  but otherwise, OK.


> To look for error-clear, then look for prErrorFlag == 0

Yup

> monitor -S -o prName "procTable" prErrorFlag == 0

Close....

> /etc/snmp/snmpd.conf: line 78: Error: duplicate trigger name
>
> So I'm guessing I can't have two monitors for the same "procTable" OID.

Almost.
"procTable" is not an OID - it's a textual identifier - a name for the trigger.
And this name must be unique.

Try
    monitor -o prName -o prErrMessage "procTable" prErrorFlag == 0
    monitor -S -o prName "procTable reset" prErrorFlag == 0



> Also does the monitor expression syntax allow for logical OR or AND
> conditionals e.g.
> monitor "procTable" prErrorFlag !=0 && prNames == "sendmail"

No.
The DisMan Event MIB work with a single comparison of one OID
(exact or wildcarded) against a constant value (typically numeric).

Handling more complex expressions is the role of the DisMan
Expression MIB, which would allow you to combine different
tests (of related OIDs) into a single expression.
   The result of that could then be used in an Event-MIB comparison.


There is a preliminary implementation of the Expression MIB
in the Net-SNMP agent, but I can't remember how complete it is.
Probably not very.
   I seem to spend all my time answering questions on these lists,
which doesn't leave much room to developing new code :-(


Dave

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