Follow up: On 6/24/08, Roy M. <setesting001@xxxxxxxxx> wrote: > 2008/06/24 16:10:19| always_direct = 0 > 2008/06/24 16:10:19| never_direct = 0 > 2008/06/24 16:10:19| timedout = 0 > 2008/06/24 16:19:45| Failed to select source for > 'http://www.example.com/images/1/21.gif' > 2008/06/24 16:19:45| always_direct = 0 > 2008/06/24 16:19:45| never_direct = 0 > 2008/06/24 16:19:45| timedout = 0 > 2008/06/24 16:22:00| Failed to select source for > 'http://test123.example.com/index.php?id=1219189' > 2008/06/24 16:22:00| always_direct = 0 > 2008/06/24 16:22:00| never_direct = 0 > 2008/06/24 16:22:00| timedout = 0 > > And nothing specaial in /var/log/messages it seems that by disabling the maxconn config, problem solved, e.g. acl maxconn_test maxconn 20 cache_peer_access 192.168.22.1 deny all maxconn_blog A little bit strange since so many client hit more than 20 connections... Thanks.