Car alarms and smoke alarms

Dan Slimmon (@danslimmon) will talk about "Car alarms and smoke alarms":

Nobody likes false negatives. When your Nagios probes fail to detect a problem, it can hurt your sales, your reputation, and even your ego (especially your ego). The solution: tune the thresholds. Right? You can handle a couple spurious late-night pages if it means you'll reliably detect real failures.

I will argue that -- while easy -- exchanging false negatives for false positives does more harm than good. Borrowing the medical concepts of specificity and sensitivity, I'll show how deceptive this tradeoff can be. I'll also make the case that putting in the extra effort to minimize both types of falsehoods is necessary and healthy. When the alarm goes off, you shouldn't have to spend precious minutes sniffing for smoke.


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  • Stathy T.

    Great content and presentation.

    December 12, 2013

  • Corey H.

    Great talk, interesting perspectives

    December 12, 2013

  • Dan S.

    Here are the slides, everyone! Thanks for coming. http://www.slideshare.net/dansl...­

    Questions, in case I ever want to give this talk again?
    * Were the handouts useful?
    * Did you find it useful to work through Question 1 on paper before moving on?
    * Anything else I could spruce up?

    December 11, 2013

  • Daryl B.

    I will admit to coming to this with rather modest expectations, but Dan put on a really, really good presentation. I'm really glad I came out!

    December 11, 2013

  • Donnie B.

    Gonna be late, didn't notice it was 6pm instead of 7pm.

    December 11, 2013

  • Ron C.

    I've been striking out, where is the best place to find DevOps consultants for long-term assignments (Windows, Puppet; and Linux, Puppet)?

    December 10, 2013

  • Michael G.

    We keep having these when I'm out of town! Sorry I'll miss it!

    December 6, 2013

  • Jason C.

    Sad I won't be able to make it as it sounds very interesting

    December 3, 2013

  • One A.

    Even though it says "Needs a location", I want to learn about Car and smoke alarms. Can we do WebEx?

    December 2, 2013

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Rafaël

We just grab a coffee and speak French. Some people have been coming every week for months... it creates a kind of warmth to the group.

Rafaël, started French Conversation Group

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