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Re: libcurl in Team Fortress 2

From: Dan Fandrich <dan_at_coneharvesters.com>
Date: Wed, 29 Jun 2011 23:29:34 -0700

On Thu, Jun 30, 2011 at 01:43:21AM +0000, Jon Lippincott wrote:
> One of the biggest issues server operators are running into is that things will
> be going along smoothly with no issues ? uploading these chunks of data
> successfully ? and then suddenly libcurl will error out with a ?Couldn?t
> resolve host name? message. Anyone have any clue what could be causing this?

The obvious answer is that the DNS server (either the local recursive one
or the remote one) is suffering a temporary problem of some sort, or a
temporary network problem is occuring during the resolution. libcurl
relies on either the system resolver or C-Ares for its DNS resolution
(depending on how it was compiled), and passes any DNS resolution errors
on up. Using a network sniffer like Wireshark will let you see whether
these errors are legitimate or not, or (in the unlikely case) are caused
by some kind of problem in libcurl.

>>> Dan
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Received on 2011-06-30