Hi
Its most likely to be an DNS issue. If your not using vhosts, try
accessing it by its IP-adress. If that helps, check your DNS. Dont
remember your reverse dns settings.
--
Lars
On Tue, May 13, 2008 at 9:10 AM, Alex Grässer <alexg@xxxxxxxxxxxxxxx> wrote:
> Hi
>
> We are experiencing an intermittent but reproducible problem, where establishing a new connection to Apache httpd sometimes takes up to 30 seconds. We are running 350 threads with +-20 threads in keepalive state (according to /server-stats) and nothing else connecting or executing in Apache at the time the new connection comes in. There _should_ be a thread available for a new connection and the socket accept _should_ be listening. What we are seeing is that there is a pause between when the network card receives the message and Apache gets the message. In the test we were using a Java HttpConnection but we can reproduce the problem with IE and Firefox as well. There is no firewall on the machine.
>
> Can anybody please explain why this could be happening or how we can go about finding the delay.
>
> Thank you
> Alexander Grässer
>
> -TRACE------------------------
> A case in point (delay of 17 seconds), running Packetyzer 5.0.0 on the network card:
>
> 13:02:25.249190000 client -> server : SYN (62 bytes)
> 13:02:25.249224000 server -> client : SYN ACK (62 bytes)
> 13:02:25.251134000 client -> server : ACK (60 bytes)
> 13:02:25.251864000 client -> server : HTTP GET (268 bytes)
> 13:02:25.442069000 server -> client : ACK (54 bytes)
> 13:02:42.960316000 server -> client : HTTP DATA (1514 bytes)
> 13:02:42.960327000 server -> client : HTTP continuation (155 bytes)
> 13:02:42.963080000 client -> server : ACK (60 bytes)
>
> and then access.log (using LogFormat "%h %l %u %t \"%r\" %>s %b (%T/%D) \"%{Referer}i\" \"%{User-Agent}i\"" combined) indicates an execution time of 31,250 milliseconds.
>
> [client-ip] - - [12/May/2008:13:02:42 +0200] "GET /xxxxx/xxxx HTTP/1.1" 200 1310 (0/31250) "-" "Java(tm) 2 SDK, Standard Edition v1.5.0_10 Java/1.5.0_10"
>
> -CONFIG-------------------------
> The config of the system is as follows: (Although we see this on differently configured Win2k machines as well)
> System:
> Microsoft Windows 2000
> 5.00.2195
> Service Pack 4
>
> Computer:
> Intel(R) Xeon(TM)
> CPU 3.20GHz
> AT/AT Compatible
> 2,096,432 KB RAM
>
> Disk:
> Device: PERC LD 0 PERCRAID SCSI 6.34 GB (6,810,531,328 bytes) with 842 MB free.
> Driver: Microsoft disk.sys, Version 5.0.2183.1 / 5.00.2195.6655 (11/14/1999)
>
> Network:
> Card: Intel(R) PRO/1000 MT
> Driver: Intel e1000nt5.sys, version 7.2.19.0002 (8/2/2004)
> WinSock: 3.10
> WinSock32: 5.00.2195.6603
>
> Apache
> Server Version: Apache/2.2.8 (Win32) mod_jk/1.2.26
> Server Built: Jan 18 2008 00:37:19
> Httpd.conf:
> <IfModule mpm_winnt_module>
> ThreadsPerChild 350
> ThreadLimit 350
> ListenBacklog 511
> MaxRequestsPerChild 0
> </IfModule>
> Timeout 300
> KeepAlive On
> MaxKeepAliveRequests 100
> KeepAliveTimeout 120
> HostnameLookups Off
>
>
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