Hi Scott, I recently posted a message to the group about a 502 error I was getting: http://mail-archives.apache.org/mod_mbox/httpd-users/200911.mbox/%3c9A7D6213F32E30428D8C94E8441C8AC85C8A8F3B@xxxxxxxxxxxxxxxxxxxxxxx%3e Given the description of your environment, it's not clear if my situation relates. But consider a possible TCP timeout with your back-end server. In my case, I was able to adjust a Linux parameter to increase the number of SYN-ACK packets the OS sent to keep the TCP connection alive - not a great solution, but a verified workaround. > -----Original Message----- > From: Scott Chapman [mailto:schapman@xxxxxxxxxxx] > Sent: Tuesday, November 24, 2009 5:28 PM > To: users@xxxxxxxxxxxxxxxx > Subject: proxy 502 problem uploading a large file > > I have Apache 2.2.11 and a web server behind it (CherryPy). > When I upload a large file to the CherryPy server, I see the > file in /tmp/modrproxy.tmp.FOO It uploads completely. > Then Apache returns a 502 error without ever hitting the > backend (the first line of code in the handler is to spit out > a log line saying it was reached). > > The access and error logs are below and my virtual host config. > I can't think what else to try. I was using RewriteRules for this. > Same situation. > > This is a production server and it's having problems. Any > help would be greatly appreciated. > > Scott --------------------------------------------------------------------- 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