Looks to me like this condition could be caused by your startup taking longer
than startuptimeout which defaults to 20 (seconds) ( I couldn't find it in the
documentation. I had to backtrack from pthread_cond_timedwait to find it.)
In your nsd.tcl file add a parameter "ns_param startuptimeout 100" to
ns_section "ns/parameters".
Your startup may be taking longer because of the Web Robots database. The
new address is
ns_param WebRobotsDB http://www.robotstxt.org/wc/active/all.txt
