Hello all, the problem is solved. It turned out that the cgi application had a bug that caused error messages to be injected into the downloaded file. I guess this caused some checksum on length validation check to send a RST ACK package back. Why this did not happen with other files I must still debug, but when I removed the code that caused the error message inside the file stream, all worked fine as it should. Regards, Chris On Mittwoch 27 Oktober 2010, Chris wrote: > Hi Eric, > > On Wed, 27 Oct 2010 07:23:49 -0400, Eric Covener <covener@xxxxxxxxx> > > wrote: > > On Wed, Oct 27, 2010 at 6:49 AM, Chris <chris@xxxxxxxxx> wrote: > >> I know I am not the first to ask this question, but I really > >> searched a lot > >> and got no solution. > >> > >> I have a CGI application written in C++ running on my Apache 2.2.9 > >> server, > >> hosted on a Debian Lenny system. The application runs fine most of > >> the time, > >> only when I do a special download of a simple text file (in CSV > >> format) the > >> file is not downloaded and the above message appears in the > >> error.log. Other > >> files in the same format download w/o problem. > >> > >> The application itself seems to run fine too, internal tracing > >> showed me the > >> file in question is generated correctly. It only might be that the > >> process > >> takes one or two seconds longer than usual, because a lot of mysql > >> queries > >> have to be executed. But as told before, this works, only the file > >> never is > >> downloaded. > >> > >> Now I am at the end of my wits and would ask for hints how to track > >> down > >> this issue? I have full control of the server (actually the same > >> problem > >> happens when I run the application on localhost, which is a Gentoo > >> system) > >> and of the application source code, so I can build test versions > >> with debug > >> statements embedded. > > > > If the client is giving up on reading the data due to time, and > > nothing else is wrong with the headers/body, try either sending the > > data back periodically or spawning another thread to trickle back > > undisplayed data to keep the client interested in hanging around > > (like > > the pages you see on travel sites). > > I forgot to mention, the client is just the Firefox browser. Normally > it downloads that files and stores them in the local file system. > > What kind of "keepalive" data could be used? > > >> Regards, Chris > >> > >> > >> --------------------------------------------------------------------- > >> The official User-To-User support forum of the Apache HTTP Server > >> Project. > >> See <URL:http://httpd.apache.org/userslist.html> for more info. > >> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > >> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > >> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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