My web system:
Internet<--->Apache Reverse Proxy<---->Apache Application Server
URL for client access internet: www.example.com
My problem:
When I access www.example.com and upload data(this is excel file). I get the following error:
Proxy Error
The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /index.php/adminstrator/store/substore/import/.
Reason: Error reading from remote server
Apache/2.2.3 (CentOS) Server at www.example.com Port 80
To resolve the problem I have set the configuration in httpd.conf:
KeepAlive On
MaxKeepAliveRequest 0
KeepAliveTimeout 7200
But it is still giving me the same error.