Hi, I am a brand new user to this forum though I've been successfully managing (low volume) Apache Servers for a number of years now. The reason I'm here today is that periodically, though apparently (?) at random intervals, Apache stops serving pages.
Using wget from the server host: # wget hipcodes.com --2009-09-23 14:32:15-- http://hipcodes.com/ Resolving hipcodes.com... 72.249.77.11 Connecting to hipcodes.com|72.249.77.11|:80... connected. HTTP request sent, awaiting response... And there it sits until the server is started; likewise from a remote browser, the page is never delivered. Nothing appears in Apache's log, even when set to the most verbose 'INFO' level. Apache is NOT pegging the CPU: CPU usage will show close to 0% and the load average will show close to zero as well. Apache is not hogging the memory, very little memory usage is shown. Apache2.2.13-1 VPS running: Debian: 2.6.18-028stab062.3 #1 SMP Thu Mar 26 14:46:38 MSK 2009 i686 GNU/Linux Traffic is around 10,000 hits/day, a combination of static files, PHP, AJAX, from an interactive mapping program named Ka-Map! (similar to G**gle Maps, et al), with queries against a PostgreSQL/PostGIS database backend. I had the (I think) exact same configuration running on a similar VPS for over a year and this never happened, as far as I can tell. What I have done so far (all to no effect): enable/disable mpm_prefork increase/decrease MaxSpareServers as high as 250 enable/disable KeepAlive disable as many additional modules as possible. The apache2.conf currently looks like this: ServerRoot "/etc/apache2" LockFile /var/lock/apache2/accept.lock PidFile ${APACHE_PID_FILE} Timeout 300 KeepAlive Off MaxKeepAliveRequests 50 KeepAliveTimeout 2 <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 50 MaxClients 250 MaxRequestsPerChild 0 </IfModule> <IfModule mpm_worker_module> StartServers 10 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 250 MaxRequestsPerChild 0 </IfModule> <IfModule mpm_event_module> StartServers 10 MaxClients 250 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> User ${APACHE_RUN_USER} Group ${APACHE_RUN_GROUP} AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all </Files> DefaultType text/plain HostnameLookups Off ErrorLog /var/log/apache2/error.log LogLevel debug Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf Include /etc/apache2/httpd.conf Include /etc/apache2/ports.conf LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined Include /etc/apache2/conf.d/ Include /etc/apache2/sites-enabled/ More information needed? Any tips? Tests I can perform? Thanks in advance. Steve Walker middleforkgis aht gmail.com
