[Pdns-users] Strange issue with RedHat EL6 and recursor 3.3

Aki Tuomi cmouse at youzen.ext.b2.fi
Thu Sep 15 08:59:56 UTC 2011

On Thu, Sep 15, 2011 at 08:38:06AM +0300, Aki Tuomi wrote:
> I'm having an issue where resolving in application takes long time. It only
> seems to affect gethostbyname() but not, for example, if one does dig. 
> I've used this as test 
> wget http://pkgs.repoforge.org/perl-Task-Weaken/perl-Task-Weaken-1.03-1.el6.rfx.noarch.rpm
> which results into spending almost 20 seconds in resolving the redirects. If 
> those redirects are manually resolved using dig, it takes milliseconds. 
> RedHat supports only comment on this issue is that it is pdns fault, and they
> suggest as workaround to use this in /etc/resolv.conf:
> options single-request-reopen
> when that is used, resolving works normally. Any ideas are greatly appreciated.
> ---
> Aki Tuomi

After some further investigations I was able to determine that the issue was with Cisco ACE
A2(1.2) software. If anyone is still running this, I can recommend an update. I'm gonna do just that

Aki Tuomi
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