Hi Sean Bollin.

Sean Bollin have written on Tue, 9 May 2017 15:24:50 -0700:

> I've got an issue in our application when I fire off a few dozen HTTPS
> requests curl_multi_perform is blocking for 15+ seconds.
>
> I took this example and modified it to just make 30 HTTPS requests:
> https://curl.haxx.se/libcurl/c/multi-app.htm
>
> When I compile multi-app and link it to the libcurl 7.29.0 installed
> on RedHat at the system level (using just gcc multi-app.c -lcurl) I
> can reproduce this long pause of 15+ seconds.
>
> Next, if I download libcurl 7.42 or even the same version 7.29 and
> build that myself, and link against it, I'm able to get the requests
> to fire off in 1-2 seconds total.

Which ssl library do you use when you compile by your own?
The curl on centos is build with nss.

Regards
Aleks

> I've tried enabling/disabling AsyncDNS via c-ares as that was a
> difference I noticed between the system level library and the ones I
> compiled manually but it didn't have any effect.
>
> Currently I am stumped as to how to continue. Any ideas on how to
> debug this or what to check?
>
> Let me know if I can provide any further info.
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Received on 2017-05-10