Multiple instances of httpd running

Multiple instances of httpd running

by William Farrugia -
Number of replies: 1

Hi guys,

One moodle copy I recently installed is currently crashing and bringing down the server when few (maybe 4) users are logged in simultaneously. In the error log I found it is giving an out of memory error, and when looking into what is going on when the server is running (top -1) the only thing that stands out besides the usual mysql popping up every now and then is multiple - sometimes up to twelve - instance of httpd even when only one user is logged in. Is this normal? 

memory usage

If with just one user httpd is consuming 22% of the available memory, could it be that with 4 we are just running out of the available memory space?

The server is a CentOS 6.5, Ram is 1Gb with Ballooning Support to up to 3Gb. Moodle version latest.  PHP APC installed and running.

Thanks for your time and help


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