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Posted to users@httpd.apache.org by Matthew Daubenspeck <ma...@oddprocess.org> on 2002/03/26 15:46:28 UTC
Apache HostnameLookups
I'm having some serious performance issues with Apache (Apache/1.3.23
(Unix) Debian GNU/Linux PHP/4.1.2) when using HostnameLookups on. The
performance is so amazingly slow it is almost unusable. When I do disable
it, the system seems to work perfectly. I use a bunch of PHP scripts that
use gethostbyaddr() and they stall forever as well, and never return any
hostnames.
I checked and double-checked my DNS settings and everything seems to be
working perfectly. I can ping and resolve hostnames just fine from the
command-line, as well as use dig and host to resolve names as well, so in
my mind I am assuming I messed something up with Apache somewhere. Does
anyone have any ideas, I am pulling my hair out!
Thanks in advance.
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Re: Apache HostnameLookups
Posted by Matthew Daubenspeck <ma...@oddprocess.org>.
>You are right, it isn't a PHP issues and I apologize, I should have said it
>isn't an Apache issue either. If is was "amazingly fast" before, even with
>Lookups enabled, I would say that something else is now broken -- very
>likely with the DNS or a secondary.
I tried using the local BIND DNS as well as my ISP provided servers, both
with the same result...
Thanks for your comments, I appreciate it!
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Re: Apache HostnameLookups
Posted by Bill -Sx- Jones <sn...@mac.com>.
On 3/26/02 10:00 AM, "Matthew Daubenspeck" <ma...@oddprocess.org> wrote:
> It is slow even when not using PHP to resolve IP's, whenever
> HostnameLookups is enabled. It used to be blazingly fast, then just stopped...
You are right, it isn't a PHP issues and I apologize, I should have said it
isn't an Apache issue either. If is was "amazingly fast" before, even with
Lookups enabled, I would say that something else is now broken -- very
likely with the DNS or a secondary.
HTH;
-Sx- :]
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Re: Apache HostnameLookups
Posted by Matthew Daubenspeck <ma...@oddprocess.org>.
At 09:58 AM 3/26/2002 -0500, you wrote:
>On 3/26/02 9:46 AM, "Matthew Daubenspeck" <ma...@oddprocess.org> wrote:
>
> > performance is so amazingly slow it is almost unusable.
> >
>
>As mentioned frequently by the apache docs DNS look ups are horribly slow.
>
>I would strongly suggest you grab IP Addr then use your PHP script to do the
>DNS look up AFTER the transaction (speed intensive phase) is complete.
>
>You will find that those lookup in your PHP are now the ones that are
>horribly slow - but please do not complain to PHP - it is the nature of DNS
>to be slow...
>
>Rgds;
>-Sx- :]
It is slow even when not using PHP to resolve IP's, whenever
HostnameLookups is enabled. It used to be blazingly fast, then just stopped...
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Re: Apache HostnameLookups
Posted by Bill -Sx- Jones <sn...@mac.com>.
On 3/26/02 9:46 AM, "Matthew Daubenspeck" <ma...@oddprocess.org> wrote:
> performance is so amazingly slow it is almost unusable.
>
As mentioned frequently by the apache docs DNS look ups are horribly slow.
I would strongly suggest you grab IP Addr then use your PHP script to do the
DNS look up AFTER the transaction (speed intensive phase) is complete.
You will find that those lookup in your PHP are now the ones that are
horribly slow - but please do not complain to PHP - it is the nature of DNS
to be slow...
Rgds;
-Sx- :]
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