I'm running Drupal 7 with Varnish. The site in question is actually bypassing Varnish in the vcl file.
Anyway, I'm getting the ajax error when I try to run a feeds import. I had this problem before but got rid of it by upping the fast CGI timeout.
This time I've had to disable varnish to run the import - which completely solves the problem.
Question is, where's the timeout on Varnish. I've disabled or upped anything that looks like a timeout but it's still timing out around 60-120 seconds (sorry haven't timed it exactly).
Any suggestions that mean I don't have to take down Varnish everytime I run a feed import would be great!
Thanks, Chris