Slow response causing H12 on Heroku

dafeng's Avatar


22 Jan, 2013 08:45 PM

I was looking at my new relic external service graph trying to understand a few H12 Request timeouts and realized that calling to is extremely slow sometimes (1s to sometimes 4s!)

I was wondering if we can move the exception logging to resque or background task so it doesn't keep the web dyno occupied. This is my frist few days of trial and the slow response is a huge concern to me. Hope to hear your thoughts.

  1. Support Staff 1 Posted by morgan on 02 Feb, 2013 08:30 PM

    morgan's Avatar

    Hi Dafeng,

    Wow, thank you for bringing this to our attention.
    The development team is working on reinforcing the exceptional api to make it more robust.
    Would an asynchronous non-blocking method of sending a notice(from your app to the exceptional API) suit your needs better?
    Get back to me and I will bring your response before the development team.


  2. 2 Posted by dafeng on 06 Feb, 2013 09:21 PM

    dafeng's Avatar

    Hi Morgan,

    Yes, I am looking for a async method. I moved to Airbrake though because it
    can log errors using resque. I think you guys should think about that too.

    Dafeng | [email blocked] | (+1) 4159879259
    Conquer the world with just one page -<>

  3. Support Staff 3 Posted by morgan on 09 Feb, 2013 02:08 AM

    morgan's Avatar

    Hello Dafeng,

    Thank you for the useful feedback.
    I will pass that info to the developers!
    Have a nice weekend and let us know if you need anything else.


  4. morgan closed this discussion on 09 Feb, 2013 02:08 AM.

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