Lighttpd

Added two options to proxy-core for debugging:

log_slow : either 0 (disabled) or seconds (default = 60), if backend requests took more than this it will be logged

debug-response-time : enable/disable logging of all backend response times (default is "disable")

example configuration:

  proxy-core.log-slow = 5
  proxy-core.debug-response-time = "enable" 

example output:

2007-11-14 14:14:48: mod_proxy_core.c.2303: (trace) request (/dimp/imp.php/PollFolders) debug_response_time: current state: 6, elapsed: 1
2007-11-14 14:14:49: mod_proxy_core.c.2298: (trace) request (/login/auth.php) runs longer than 5 secs: current state: 6, elapsed: 6
2007-11-14 14:14:49: mod_proxy_core.c.2303: (trace) request (/login/auth.php) debug_response_time: current state: 6, elapsed: 6

I found this very usefull to debug backend problems.