curl / Mailing Lists / curl-library / Single Mail
Buy commercial curl support from WolfSSL. We help you work out your issues, debug your libcurl applications, use the API, port to new platforms, add new features and more. With a team lead by the curl founder himself.

Re: "getaddrinfo() thread failed to start" under heavy load

From: Henrik Holst via curl-library <>
Date: Tue, 17 Oct 2023 00:24:02 +0200

could be the limit of number of descriptors :

looked briefly at the code and unfortunately there are no error stack so
there is really no way of really knowing why the call failed, it can be
from fails to do malloc but that rarely happens on Linux even if there is
no memory, but it also creates two sockets per call so that made me think
of the opel files / descriptors limit.


Den tis 17 okt. 2023 kl 00:17 skrev Matt Toschlog via curl-library <>:

> I'm using libcurl in a voice server app running on Ubuntu 20.04 on an
> Amazon AWS EC2 instance. When I get around 500 users on the system I
> start getting the error "getaddrinfo() thread failed to start" in my
> curl_easy_perform() calls.
> Memory doesn't seem to be an issue -- I'm not going above 15%
> utilization. Perhaps there's a Linux limitation (number of threads, for
> example) that I'm running up against but I haven't found it.
> I'm building with curl 7.68.0, which as far as I can tell is the most
> recent version for the system I'm running on.
> Any ideas?
> Thanks.
> --
> Unsubscribe:
> Etiquette:

Received on 2023-10-17