Working with user off the mailing list (I don't want to flood it :)...

Please keep this bug open for now :)))

On 4 May 2001 [EMAIL PROTECTED] wrote:

> From:             [EMAIL PROTECTED]
> Operating system: Linux
> PHP version:      4.0.4pl1
> PHP Bug Type:     cURL related
> Bug description:  CURL/PHP causes lengthy Apache Keepalive
> Greetings. I have Apache/1.3.14 (Unix) running with
> PHP/4.0.4pl1 installed as a module and CURL 7.7.1 added to
> that. Our web sites need to fetch a request from a remote
> ad server in real-time as each page is generated. If $adr
> is the request, I used to use:
> $success = @readfile($adr);
> But then I found CURL and saw that is (a) was more robust
> and (b) seems to be more efficient than readfile. So I now
> use CURL in he following way:
> $aje_ch = @curl_init($adr);
> @curl_setopt ($aje_ch, CURLOPT_TIMEOUT, 1);
> @curl_setopt ($aje_ch, CURLOPT_MUTE, 1);
> @curl_exec ($aje_ch);
> @curl_close ($aje_ch);
> This works great, except that if I have "Keepalive on" in
> my Apache configuration file, the httpd server sits in
> keepalive state for FAR longer when using CURL than it does
> when using readfile. In the course of 2 or 3 hours, my
> server would normally be at about 150 httpd processes
> running at any given point in time. But when using CURL, it
> jumps to 650 httpd processes, with the lions share (99%) of
> those sitting in the keepalive state for very long. It
> seems like the CURL requests are causing Apache to set its
> Keepalive timeout to something much higher than it should
> be. Setting "keepalive off" in Apache's conf file works
> around this problem, but decreases server efficiency. I'd
> love to solve this problem.
> Please help! :-)
> For the record, this was posted to the cURL bug tracker
> over on SourceForge
> (
> d=418860&group_id=976), and we went through quite a few
> gyrations with no success.  Specifically, we tried
> disabling KeepAlive on the REMOTE server to see if that had
> any affect, and it did not.  It seems not to matter what we
> request from, rather that any requests using
> PHP/cURL/Apache result in the LOCAL Apache bloating out of
> control with KeepAlive requests.  Reverting back to
> readfile() based requests solves this problem but, well,
> cURL is better.  ;-)
> All help would be appreciated, and I am available and
> willing to test anything on our servers.
> Thanks!
> -Dave

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