Joe Magerramov

@_joemag

Senior Principal Engineer at AWS. Work on fake networks and software load balancers. Dad of two. Ex New Yorker. Sports fan. Physics nerd. Opinions my own.

Vrijeme pridruživanja: veljača 2019.

Tweetovi

Blokirali ste korisnika/cu @_joemag

Jeste li sigurni da želite vidjeti te tweetove? Time nećete deblokirati korisnika/cu @_joemag

  1. prije 3 sata

    Our industry continues to hurt from the fact that one year is single worst length of time for certificate expirations. Too short to be rare and ignorable, and too long to build an operational muscle around renewing them.

    Poništi
  2. 31. sij

    The rain outside my office window is flying horizontally. I'm pretty sure the water is not supposed to do that.

    Poništi
  3. proslijedio/la je Tweet
    30. sij

    Astronomers' Concerns Intensify With SpaceX's Latest Starlink Launch 60 new satellites. Every 2 weeks, launch-permitting. 0 within acceptable limits. 60 maximal offenders. Astronomers do not consent to 's unfixed Starlinks.

    Prikaži ovu nit
    Poništi
  4. 29. sij

    Hello Austin. I hear ya’all like Giants fans here.

    Poništi
  5. proslijedio/la je Tweet
    28. sij
    Poništi
  6. 28. sij

    I’m likely super late to the party, but our family just discovered and my 6 year-old has been completely engrossed. Very well made, kudos.

    Poništi
  7. 26. sij
    Poništi
  8. 23. sij

    Maybe it’s the Stockholm syndrome speaking, but Frozen 2 soundtrack is pretty good.

    Poništi
  9. 22. sij

    One thing I would’ve liked to see is discussion of the impact of this strategy on ability to perform RCU synchronization.

    Prikaži ovu nit
    Poništi
  10. 22. sij

    One paper I really enjoyed in the last few years is Cuckoo++ Hash Tables: Even though I haven’t used it in production, some of the ideas in the paper are pretty interesting. And it was the first thing I tried to build as I was learning Rust.

    Prikaži ovu nit
    Poništi
  11. 22. sij

    Multiple choice question on my daughter’s test: “Pick the most modern item.” The right answer was computer, but it hit me how confusing that question must be for her. To her, computers are ancient.

    Poništi
  12. proslijedio/la je Tweet
    20. sij

    Our CACM paper on formal methods at AWS is on Hacker News this morning. It's always great to see interest in formal methods in general, and TLA+ in particular.

    Prikaži ovu nit
    Poništi
  13. 20. sij

    Unfortunately, this doesn’t work for every system. Some examples are systems where individual nodes have high variability in goodput due to customer behavior (e.g. storage nodes) or where much more care needs to be taken before taking a node out of service.

    Prikaži ovu nit
    Poništi
  14. 20. sij

    A central observer can then monitor each node for this metric, eagerly taking a node out of service when its rate drops (after applying a central throttle to avoid mass shut downs due to false positives.).

    Prikaži ovu nit
    Poništi
  15. 20. sij

    Because of that, the mechanism I tend to like for for detecting such failures is drop in the rate at which failing node performs useful work (i.e. Goodput). For a web server, this could be HTTP 200s, for a network switch this could be packets processed.

    Prikaži ovu nit
    Poništi
  16. 20. sij

    There is a nuance though, even clients themselves rarely observe such failures cleanly, so strategies like retries dont always help either. In my experience, many gray failures manifest themselves as performance problems. A node continues accepting work, but its throughput drops.

    Prikaži ovu nit
    Poništi
  17. 20. sij

    Finally got around to reading . I like paper’s definition of gray failures as “differential observability”. It hits directly on the practical aspect of gray failures: they are most impactful when clients observe problems, while the health checker does not.

    Prikaži ovu nit
    Poništi
  18. 19. sij

    This is going to be a blast from the far, far past. Does anybody remember name of the interactive assembler that shipped with MS-DOS that allowed you to examine CPU registers and execute arbitrary x86 instructions one at a time. Is there a modern day equivalent?

    Poništi
  19. 18. sij

    Just stumbled onto our waterproof camera case. We bought it 6 years ago to take underwater pictures, yet either forgot to pack it or were unable to find it each time we went on a beach vacation. I think this time I will definitely, totally, remember where it is next time we go.

    Poništi
  20. 18. sij

    So I have to root for Jason Garrett now... That’ll feel pretty weird,

    Poništi

Čini se da učitavanje traje već neko vrijeme.

Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.

    Možda bi vam se svidjelo i ovo:

    ·