[hobbit] resend: 2 questions

michael nemeth michael.nemeth at lmco.com
Wed Jul 23 12:22:31 CEST 2008


Yes you're right IT does hit the fan then.

Gary Baluha wrote:
> I say the color should be brown, then...
>
> On Tue, Jul 22, 2008 at 11:57 AM, Jeff Newman <jeffnewman75 at gmail.com 
> <mailto:jeffnewman75 at gmail.com>> wrote:
>
>     Right. I think the concept is
>
>     Level 1: "warning everyone, something bad could happen, or might not,
>     may want to look"
>                      - Yellow
>     Level 2: "Hey look, it was just a warning before, but now, it's bad
>     and service might
>                  be interrupted unless you take action, this is your last
>     chance buddy!"
>                      - Red
>     Level 3: "I've told you repeatedly, and now look whats happened!
>     You've reached
>                 super critical orange level! That means within minutes
>     your service will be dead.
>                 run for the hills, the sky is falling, the phone is about
>     to ring non-stop"
>                      - Orange
>
>     i think 3 levels makes sense for some specific applications.
>
>     -jeff
>
>     On Mon, Jul 21, 2008 at 4:57 AM, michael nemeth
>     <michael.nemeth at lmco.com <mailto:michael.nemeth at lmco.com>> wrote:
>     > 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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>
>
>

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