+ * Try to avoid a situation in which so many ikiwiki cgi wrapper programs
+ are running, all waiting on some long-running thing like a site rebuild,
+ that it prevents the web server from doing anything else. The current
+ approach only avoids this problem for GET requests; if multiple cgi's
+ run GETs on a site at the same time, one will display a "please wait"
+ page for a configurable number of seconds, which then redirects to retry.
+ To enable this protection, set cgi_overload_delay to the number of
+ seconds to wait. This is not enabled by default.