[hobbit] resend: 2 questions

michael nemeth michael.nemeth at lmco.com
Mon Jul 21 11:57:51 CEST 2008


Actually the licenses are better example,  Right now I can create 
numeric limits  of say
97-102 yellow,  103 to 121 red,   but have no way of telling when I go 
over.  And that the first quesion
management going to ask, being they are very happy to see there money 
well spent with 100%
utilization.
 My clearcase script DO return rejections.  So with orange I could tell 
management how many times
(at least that) and how long it was orange . Also, of course  try to 
handle the orange condition!

Point is a "Drop Dead, color  is useful .

Gary Baluha wrote:
> If that's the case, a fourth color would have the same limitation ;-)
> (That's a lot of disk space if 100% full = gigs of free space)
>
> With the lack of a finer granularity, the only option you have is to 
> create a custom script (client-side or server-side should work in this 
> case) that checks the _amount_ (as opposed to _percentage_) of free 
> space, and set a green/yellow/red threshold based on that.  You could 
> then set up the Hobbit alert rules like any other test, and it sounds 
> like this would solve your particular problem.
>
> (a client-side script would probably be the easiest to set up, 
> depending on how many machines it would need to be propagated to)
>
> On Fri, Jul 18, 2008 at 2:57 PM, michael nemeth 
> <michael.nemeth at lmco.com <mailto:michael.nemeth at lmco.com>> wrote:
>
>     Sorry, disagree!
>     I can have gigs of space left at 100%  not critical  at all !!!! 
>     Its not "beyond critical"  its  fatal if you hit zero free !
>     Either one needs finer granularity (isn't numerical limits in the
>     work)  or a new  fatal color.  I have that run near    100 % all
>     the time too.
>
>
>     Gary Baluha wrote:
>>     The philosophy Hobbit uses for alerting is that you're okay until
>>     you reach a certain threshold.  At that point (yellow) you still
>>     have to respond to the event and take care of it, before it
>>     becomes a bigger issue.  If it continues, then you reach another
>>     threshold where stuff can (and usually does) break.  At this
>>     point, you _need_ to respond to the event.
>>
>>     What you are proposing is a fourth level such that you are
>>     "beyond critical".  This is a similar concept to being "fatally
>>     killed" (as opposed to just being "killed").  The trick to
>>     running a successful monitoring system is setting the thresholds
>>     in the first place (which is easier said than done), such that
>>     you don't have any false-positives, but even more importantly, no
>>     false-negatives (i.e. an alert you should have gotten, but didn't).
>>
>>     Can you give a more specific example (in as far as I.P./security
>>     will allow) of what you are trying to accomplish?
>>
>>     On Fri, Jul 18, 2008 at 11:52 AM, michael nemeth
>>     <michael.nemeth at lmco.com <mailto:michael.nemeth at lmco.com>> wrote:
>>
>>         One case I can think of is for even 100% you've  lots of but
>>         if you hits 0 free you HAVE to do
>>         some thing!
>>
>>         Gary Baluha wrote:
>>>         On Fri, Jul 18, 2008 at 10:59 AM, Jeff Newman
>>>         <jeffnewman75 at gmail.com <mailto:jeffnewman75 at gmail.com>> wrote:
>>>
>>>             Hi,
>>>
>>>             didn't see a reply, so thought i'd do a resend in case
>>>             it got lost in
>>>             the shuffle
>>>
>>>             Hi All,
>>>
>>>             Two questions:
>>>
>>>             QUESTION #1: Is it possible to have a third color alert?
>>>             Meaning:
>>>
>>>             One of my customers wants a setup like this:
>>>
>>>             Custom script runs on client server, reports:
>>>
>>>             foo : 80
>>>
>>>             for example.
>>>
>>>             They want less than 85 to be green, 85-90 yellow, 90-95
>>>             red, and above
>>>             95 any color, say orange.
>>>             So far as I can tell, I can only use green, yellow, and
>>>             red for
>>>             alerts, and blue and purple are reserved.
>>>
>>>          
>>>         Currently, no.  But it might help to understand why 4 alert
>>>         levels are desired.
>>>
>>>             QUESTION #2:
>>>
>>>             lets say #1 above is possible, so my script sends hobbit
>>>             the status
>>>             line based on the it sees, with the
>>>             status of green, yellow, red, and orange. The hobbit
>>>             server recieves
>>>             it, and uses the NCV module to build the rrd etc..
>>>             In hobbit-alerts.cfg to say does the SERVICE keyword
>>>             work for custom
>>>             NCV type columns?
>>>
>>>
>>>         The SERVICE tag in hobbit-alerts.cfg works for any column
>>>         name, NCV or otherwise.
>>>
>>
>>
>
>

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