Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
colmmacc's profile
Colm MacCárthaigh
Colm MacCárthaigh
Colm MacCárthaigh
@colmmacc

Tweets

Colm MacCárthaigh

@colmmacc

AWS, Apache, Crypto, Irish Music, Haiku, Photography

Seattle
notesfromthesound.com
Joined April 2008

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Ed: Sounds like COE approx equals postmortem. I wonder how many COEs there are/week at AWS? and what is the threshold for writing a COE? Also, @colmmacc mentions "root cause" here, to which I knee jerk copy paste https://www.verica.io/inhumanity-of-root-cause-analysis/ …https://www.kitchensoap.com/2012/02/10/each-necessary-but-only-jointly-sufficient/ …

      1 reply 0 retweets 0 likes
      Show this thread
    2. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      After reviewing postmortems, use a wheel to select a team for a deep dive into graphs, metrics, etc (ed: can't do everyone, looks like wheel scheme incentivizes everyone to be prepared even if only one team presents since no one wants to look like a chump at a meeting this large)

      1 reply 0 retweets 1 like
      Show this thread
    3. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Also look at "operational sustainability" to keep an eye out for burnout (ed: more details here plz @colmmacc?) Meeting involves not just ops folks but senior execs. Led by SVP @charlieaws, many other senior folks also show up, which shows its importancepic.twitter.com/oobj6WLX1h

      1 reply 0 retweets 1 like
      Show this thread
    4. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      teams have their own, smaller version of this meeting including on-call handoff, metrics review, etc. If Colm is thinking about taking a dependency on a service, can show up to their ops meeting to check on how things are going.

      1 reply 0 retweets 0 likes
      Show this thread
    5. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      What happens when things go wrong? Usually means that something "quite unusual" has happened. Will share AWS' event response workflows. Every team has an oncall, so they can be paged, and most issues can be handled by that on-call (ed: see https://how.complexsystems.fail/#2 )

      1 reply 0 retweets 0 likes
      Show this thread
    6. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      AWS uses voice conference calls as main coordination backbone, mainly because AWS has expertise and a history of doing so. Avoids ChatOps because many run on AWS itself, and they don't want a dependency on AWS during events (ed: so voice conferences must not be on Chime!)

      1 reply 0 retweets 1 like
      Show this thread
    7. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Every call has a Call leader and facilitator for coordinations. Call leader manages engineering coordination, facilitator does externally-facing statusing, etc. These roles are filled by experienced staff who are empowered to make decisions.

      1 reply 0 retweets 0 likes
      Show this thread
    8. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Challenge: how do you build a habit of excellence in event response if you want events to be rare? AWS uses a simple protocol: Stay calm Assess the situation Focus on Mitigation, not root cause analysis (ed: already discussed my feelings on RCA) Escalate early and often

      1 reply 0 retweets 1 like
      Show this thread
    9. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Ed: these slides have tons of text, perhaps from internal docs? @colmmacc, are those docs published anywhere? Also, this might be an interesting part of the talk to go watch, the story/language is compelling. https://www.slideshare.net/AmazonWebServices/the-theory-and-practice-practice-practice-of-aws-operations-aws-summit-sydney … (slide 49-53)

      1 reply 0 retweets 1 like
      Show this thread
    10. Jacob‏ @jhscott 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation

      Summary is that operations is not an afterthought, and this talk shows * how AWS thinks about operational risk * how AWS deploys * how SAFE works @colmmacc where's a good talk on AWS' postmortem process? :-D

      1 reply 0 retweets 0 likes
      Show this thread
      Colm MacCárthaigh‏ @colmmacc 19 Aug 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @jhscott

      Becky gave a talk about that at Sydney too, and I'm giving some more detail about our process at Networking @ Scale on September 9th. Let me know what you'd like to hear!

      4:10 PM - 19 Aug 2019
      • 1 Like
      • Jacob
      1 reply 0 retweets 1 like
        1. Jacob‏ @jhscott 19 Aug 2019
          • Report Tweet
          • Report NetzDG Violation
          Replying to @colmmacc

          Ah, thats "The Art of Successful Failure" by Becky Weiss (twitter unknown), https://embed.vidyard.com/share/6upxJjy58auqAsYThuj8v6 … I'll take a watch in the next week or two and let you know what questions I have after :-P

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info