On Jan 6, 9:30 am, ppdo <ppdo2...@yahoo.com> wrote:
> I tried to monitor the interface using WireShark and the communication
> just hangs during a data transfer: Apache is just acknowledging the
> receipt of some packets and then just seems to hang. The suspicious
> bit is a fairly long series of http RST about 20ms before the server
> hangs. Though I'm not knowledgeable enough on http, to me this clearly
> points in the direction of an Apache problem, though I'm not sure if
> and how it can be solved.
>
> I will try the following:
> 1. Check whether there is a known problem in my version of Apache
> (it's the Leopard standard version, so it might be old enough)
> 2. Reconfigure/recompile the server, to make it work in 32-bit mode
>
> Any idea additional is welcome, of course!
AFAIK Apache itself wouldn't be generating those packets directly. It
just uses a socket and the standard operating system network library
socket functions. If there is an issue with packets at the TCP/IP
level, it would be an operating system level issue.
FWIW, when I am doing benchmarking on MacOSX I often see 'ab' stall
when trying to do even moderate size test runs of 10000 requests. I
have never bothered to go into it enough detail to work out the cause,
although for that case also don't believe it was Apache. If anything
was blaming 'ab', but wouldn't be surprised if it was a network level
issue, even though I was doing it against server on same box.
Graham
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