halayli

55 ms·

1. 601.▲
   by halayli 12y ago

   Please can you elaborate?
2. 602.▲
   by halayli 12y ago

   Any feedback would be appreciated.
3. 603.▲
   by halayli 12y ago

   I'd argue that queues can introduce a lot of similar problems. Especially when there's slowness (backing up, slow disk etc...). Messages over tcp sent directly to the processors are not that hard to design for failures and high av
4. 604.▲
   by halayli 12y ago

   Any reason why you don't send the data directly to the processing servers as a way to minimize complexity? If it fails to reach one, try the other. When you mention low latency, how low are we talking? ms, seconds, minutes? The reason
5. 605.▲
   by halayli 12y ago

   Well that's wrong. It's only the 3rd Thursday of the week.
6. 606.▲
   by halayli 12y ago

   Not sure if cases like "No Parking 7AM - 9 AM every 3rd Thursday of the month" are covered in her design.
7. 607.▲
   by halayli 12y ago

   This makes me so happy.
8. 608.▲
   by halayli 12y ago

   to the CPU, what's a row and what's a table in this context.
9. 609.▲
   by halayli 12y ago

   Define a record. Also can you elaborate more on how ASM instructions can be record oriented?
10. 610.▲
    by halayli 12y ago

    I've looked at the tpc.org maybe 13 years ago. It never made sense to me to use it as a measurement unit back then and it still don't make sense to me now. :)
11. 611.▲
    by halayli 12y ago

    But how can they claim they can do X transactions when a transaction's processing requirement is undefined?
12. 612.▲
    by halayli 12y ago

    I know that but this is a very general definition of TPS. How many CPU cycles a transaction requires? It varies on the transaction of course. So I am wondering why they use TPS as a unit when it can be anything.
13. 613.▲
    by halayli 12y ago

    what's a transaction in this context?
14. 614.▲
    by halayli 12y ago

    It sounds like this guy just learnt about HTTP details.
15. 615.▲
    by halayli 12y ago

    learn how to learn and you have to be naturally curious. The rest follows. This to me(subjectively) defines a hacker. Rarely do you reach dead ends when you know how to learn.
16. 616.▲
    by halayli 12y ago

    Got it. thanks for the clarification.
17. 617.▲
    by halayli 12y ago

    if you aren't going to tell me how the scaling is implemented, how it impacts ACID, and describe your edge cases well, then It's going to be hard to trust the solution.
18. 618.▲
    by halayli 12y ago

    Ah -d:release made the results almost identical. Thanks!
19. 619.▲
    by halayli 12y ago

    I copy/pasted the code in the article and compiled each one. I am getting very different ratios compared to the ones you posted: tmp$cc -Wall -O2 test.c -o test && time ./test real 0m1.041s user 0m0.998s sys 0m0.029s nim-0
20. 620.▲
    by halayli 12y ago

    I see. The strategy should depend on the goal, of course. memcached is a good example of a daemon that shouldn't abort imho, many other daemons could happily abort. https://github.com/memcached/memcached/blob&
21. 621.▲
    by halayli 12y ago

    you don't have to receive a request asking for 3 gigs of data. You could be close to the edge and there's not enough room to receive this particular request. There are many daemons that require you to keep what you have in memory
22. 622.▲
    by halayli 12y ago

    An in-memory message queue server or memcached variations don't need to crash if it can't serve a particular request that requires more memory than available. I am not sure why error-handling is a difficult concept for you.
23. 623.▲
    by halayli 12y ago

    It doesn't have to be interesting. Incorrect code covers a spectrum and is not black or white. The term "edge-case" describes it pretty well. Regarding mallocs, again you don't have to overthink error-handling. Just hand
24. 624.▲
    by halayli 12y ago

    How do you know? What if someone forked this program and closed fd 0 before execX()? You have to abide by the posix standard and what the man page tells you. Now it never happens, but later the code can change and the case can hit. Most pro
25. 625.▲
    by halayli 12y ago

    Few nitpicks found while skimming through the source. fd = socket(AF_INET6, SOCK_DGRAM, 0); if (fd <= 0) { This should be fd == -1. fd == 0 is valid. https://github.com/robertdavidgraham/robdns/blob/mas
26. 626.▲
    by halayli 12y ago

    It's not fair because you are not comparing apples to apples. I can write a poll loop that accepts and sends back http responses and call it a webserver. h2o doesn't even use sendfile(2) which means file data is read and copied to
27. 627.▲
    by halayli 12y ago

    Just use C++11
28. 628.▲
    by halayli 12y ago

    Omitting one feature might not but things add up. Compare HTTP parsing in nginx with this one and you'll notice how much more rigor nginx is about it. Parsing transfer-encoding by itself is costly for example, and nginx does it whether
29. 629.▲
    by halayli 12y ago

    This doesn't look like a complete HTTP server, comparing it with nginx is not fair. . It's missing content-encoding handling on the receiving side . No http continue support . No regex routing support . No header rewrites to name
30. 630.▲
    by halayli 12y ago

    It's not as simple as you'd think. Monitoring 1 website is easy, monitoring 1M websites and gathering results in realtime from stations around the globe to make a proper decision is a different thing. Significant bandwidth, and CP