[hobbit] Client interval question

Tracy J. Di Marco White gendalia at iastate.edu
Thu Dec 15 17:53:21 CET 2005

In message <7921F8E0-E87F-4A95-895C-A38ABB1D7831 at PacketPushers.com>, Scott Walters writes:
}> Sure, but we'd see up to 13 hours between dns 'red', when BB would
}> get several in that period.
}> I haven't changed hobbit yet to 1 minute checks.  I've even made
}> an explicit explanation that I wasn't planning to shorten it to
}> 1 minute checks when we officially switched over, and that was
}> agreed to.  However, with the fact that the 1 minute checks did
}> actually make a difference in tracking down and solving the problem
}> with DNS, I may yet have to work on that change.
}It sounds like your shop is so tidy that you would have found it and  
}fixed it anyway.  It was just a little brighter with the shorter  

I agree we would have found it.  I'm amused at the thought of our
shop being tidy, but thanks.

}> We'll see what
}> kind of feedback I get after today.  Even then, the only thing I'd
}> really be willing to shorten to that frequency of checks are the
}> remote checks, over the network.
}I believe hobbit has great 're-test' logic.  So if it is down, it  
}will test more frequently . . . .

And that's how I sold the 5 minute testing interval.  And how I
think I'll not have to shorten the interval for hobbit now.

}> I thought it was unnecessary when I originally brought BB into
}> production years ago, but it was one of the requirements I ended
}> up with to sell switching to BB.  Some things can't be checked
}> every minute, I have raid checks that can take more than a
}> minute to run.
}On the client, 1m samples are opening Pandora's Box . . . .

Everyone really needs to consider what all the effects are of 
the frequency of the monitoring.

Tracy J. Di Marco White
Information Technology Services
Iowa State University

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