We have Moodle running on a server to make some tests. We hace noticed that the amount of RAM used increases as the time goes on. For example, if we reboot, we have 250 MB used of a total of 2GB. Some days later (3 or 4), leaving the server "alone" and with no requests at all, the amount of memory used is nearly 1GB. If we reboot, the problem dissapears, and we have again around 1750 MB free.

The solution seems to be changing something in the Apache configuration, but everything seems to be all right. The important settings are:

Timeout 120 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 2 <IfModule prefork.c> StartServers 8 MinSpareServers 8 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 20 </IfModule>

<Directory "/var/www/html/moodle"> DirectoryIndex index.php AcceptPathInfo on AllowOverride None Options None Order allow,deny Allow from all </Directory> Alias /moodle "/var/www/html/moodle" AddOutputFilterByType DEFLATE text/html text/plain text/xml

The server is a Pentium D 830 with 2GB RAM. We are running Apache 2.0.52, MySQL 4.1.20, PHP 4.3.9, eAccelerator 0.9.3 and Moodle 1.6.3.

Some friends of mine have similar problems with other servers, so I guess this must be a relatively common problem.

Does anybody have any idea, suggestion or wathever? Thank you very much!

--Noé