Hi Rainer, *; and first off, thanks for being patient enough reading through all the long message to the very end, as well as for your comment on that. :) Rainer Sabelka schrieb: [...] > I've observerd similar problems with large POST requests which sometimes time > out on the backend servers while the client is sending the request body (like > you with mod_proxy/apache 2.2 on Ubuntu 8.04). Yes I am seeing upload/POST related issues once in a while, as well (looking at the Java apps, they end up being something like "upload of multipart/form-data failed, stream ended unexpectedly"). Seems to depend upon the size of POSTs indeed, and happens significantly less often than the download-related issue. > But the whole issue might actually not be caused by apache at all, but by a > bug in the TCP implementation of the linux kernel 2.6.24. (See this thread: > http://marc.info/?t=121518334200003&r=1&w=2) > For me setting /proc/sys/net/ipv4/tcp_frto to 0 helped to solve the problem > for a coulple of users, but not for everyone. Thanks for the pointer, I will dig into this and see where it gets me, however this issue did also exist in our "old" reverse proxy environment (ubuntu 6.06.1, apache 2.0) so I think it is at least not completely Linux 2.6.24 related... Cheers & good luck on that as well. Kristian --------------------------------------------------------------------- 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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