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Posted to modperl@perl.apache.org by Philip Mak <pm...@animeglobe.com> on 2002/01/06 15:04:07 UTC
HTTP file uploads with mod_accel
Has anyone been using mod_accel on a website that has HTTP file uploads?
I'm having trouble getting file uploads to work with Internet Explorer 5.5,
Netscape 4.7, or Opera 6 through mod_accel 1.0.10. If I access the backend
Apache directly, it works.
I can upload a 1491 byte file, but I can't upload a 13643 byte file (no
matter which web browser I use). When I try to upload the 13643 byte file
through mod_accel, the browser just keeps acting like it's loading the page
and never finishes.
I'm guessing there might be a buffering problem, but I'm not sure how to go
about finding the cause of the problem and fixing it... any suggestions?
Re: Fixed (Re: HTTP file uploads with mod_accel)
Posted by Igor Sysoev <is...@rambler-co.ru>.
On Sun, 6 Jan 2002, Issac Goldstand wrote:
> DOES mod_accel buffer the uploads as they come through? That feature
> would be critical for compatibility with libapreq's UPLOAD_HOOK, which I'm
> finding lots of nice uses for...
Yes, mod_accel buffers completly uploads and starting from 1.0.8
broken uploads even do not go to backend.
The are two reasons:
1. Backend should not wait slow client upload.
2. To implement simple fault-tolerance I need to collect whole upload.
Although second reason does not require to collect whole upload before
sending it to backend.
There is workaround to use UPLOAD_HOOK on backend - you can use mod_proxy
with mod_accel:
ProxyPass /upload/ http://backend/upload/
ProxyPassReverse /upload/ http://backend/upload/
AccelPass / http://backend/
AccelNoPass /upload/
Igor Sysoev
Re: Fixed (Re: HTTP file uploads with mod_accel)
Posted by Issac Goldstand <ma...@beamartyr.net>.
Igor,
DOES mod_accel buffer the uploads as they come through? That feature
would be critical for compatibility with libapreq's UPLOAD_HOOK, which I'm
finding lots of nice uses for...
Issac
----- Original Message -----
From: "Igor Sysoev" <is...@rambler-co.ru>
To: "Philip Mak" <pm...@animeglobe.com>
Cc: "Issac Goldstand" <ma...@beamartyr.net>; <mo...@apache.org>
Sent: Sunday, January 06, 2002 6:56 PM
Subject: Re: Fixed (Re: HTTP file uploads with mod_accel)
> On Sun, 6 Jan 2002, Philip Mak wrote:
>
> > Never mind, I'm an idiot. I just took a look at the error_log of my
> > frontend and the problem became clear.
> >
> > [Sun Jan 6 09:42:04 2002] [error] [client 206.173.36.189]
(13)Permission denied: accel: can't create tempfile
/usr/local/apache/cache/tmpFtYxlf
>
> My fault. I've just fixed it and in next release mod_accel would return
> 500 in this case.
>
> Igor Sysoev
>
Re: Fixed (Re: HTTP file uploads with mod_accel)
Posted by Igor Sysoev <is...@rambler-co.ru>.
On Sun, 6 Jan 2002, Philip Mak wrote:
> Never mind, I'm an idiot. I just took a look at the error_log of my
> frontend and the problem became clear.
>
> [Sun Jan 6 09:42:04 2002] [error] [client 206.173.36.189] (13)Permission denied: accel: can't create tempfile /usr/local/apache/cache/tmpFtYxlf
My fault. I've just fixed it and in next release mod_accel would return
500 in this case.
Igor Sysoev
Fixed (Re: HTTP file uploads with mod_accel)
Posted by Philip Mak <pm...@animeglobe.com>.
Never mind, I'm an idiot. I just took a look at the error_log of my
frontend and the problem became clear.
[Sun Jan 6 09:42:04 2002] [error] [client 206.173.36.189] (13)Permission denied: accel: can't create tempfile /usr/local/apache/cache/tmpFtYxlf
Re: HTTP file uploads with mod_accel
Posted by Philip Mak <pm...@animeglobe.com>.
On Sun, Jan 06, 2002 at 04:16:00PM +0200, Issac Goldstand wrote:
> I use it with uploads and it all works fine. What I still haven't
> tested is the UPLOAD_HOOK functionality of Apache::Request under it, but
> I'll get around to that shortly.
Hmm, I wonder if it's dependent on the CPAN module used to parse the file
uploads.
I'm using MwfCGI.pm (distributed with mwForum), which is a somewhat
modified version of CGI::Minimal.
Re: HTTP file uploads with mod_accel
Posted by Issac Goldstand <ma...@beamartyr.net>.
I use it with uploads and it all works fine. What I still haven't
tested is the UPLOAD_HOOK functionality of Apache::Request under it, but
I'll get around to that shortly.
Issac
Philip Mak wrote:
>Has anyone been using mod_accel on a website that has HTTP file uploads?
>
>I'm having trouble getting file uploads to work with Internet Explorer 5.5,
>Netscape 4.7, or Opera 6 through mod_accel 1.0.10. If I access the backend
>Apache directly, it works.
>
>I can upload a 1491 byte file, but I can't upload a 13643 byte file (no
>matter which web browser I use). When I try to upload the 13643 byte file
>through mod_accel, the browser just keeps acting like it's loading the page
>and never finishes.
>
>I'm guessing there might be a buffering problem, but I'm not sure how to go
>about finding the cause of the problem and fixing it... any suggestions?
>