----- Original Message ----- > On 12/12/2011 12:17, Enrico Daga wrote: > > Hi all, > > > > I send this mail to both httpd and php lists. > > I experienced the following problem running php scripts on httpd. > > The RAM fills gradually until the system starts swapping, then, if > > I > > don't restart the server, swap fills and everything goes down. > > After some try/check tests, I realized that the memory used by a > > single request is never released when the process is complete. This > > makes the RAM to be gradually filled. > > I thought in the beginning was a problem with the php application > > and > > circular references on objects (I found some posts about this) then > > I > > tried with a simple script (just populating a single array) but the > > problem still occurs. > > Our production environments are on Centos 4.9 - we have some legacy > > applications that prevented us to upgrade the servers before. > > For this sake I tried on fresh systems and more recent versions, > > and > > experienced the same problem on Centos 4.9, 5.5 / PHP 5.1.6 and > > Centos > > 6 / PHP 5.3.6, with distributed packages for both httpd and php and > > default configuration. Httpd uses the Prefork MPM module. > > I also noticed that this _do not_ happen on Ubuntu 11.10 server. I > > had > > a look at the configuration of both httpd and php, but in both > > cases > > (Centos and Ubuntu) I could not noticed a difference on parameters > > regarding memory usage. > > > > Since this is the first time we run PHP applications on our httpd > > servers I guess there is some configuration I should modify to have > > the system behave correctly (free the memory when it is not > > needed). > > The only workaround would be to move the MaxRequestsPerChild > > parameter > > to 1, then killing the sub-process that hold the request, but I > > don't > > believe this is the right solution. > > Finally, I am not so sure that the issue I describe here belong to > > the > > httpd or php lists, in this case please apologies, I would be very > > happy if you can point me to a red-hat list (found a lot of lists, > > but > > no sure which is related to httpd/php issues). > > > > Thank you very much for any hint. > > > > Best regards, > > Enrico > > > > Attach your configs when asking help, to have better performance > (memory/cpu > usage) dont use mod_php, instead try running php as cgi application > (cgid). or rather, mod_fcgid > -- > Simone Caruso > IT Consultant > +39 349 65 90 805 > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server > Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > -- Igor Galić Tel: +43 (0) 664 886 22 883 Mail: i.galic@xxxxxxxxxxxxxx URL: http://brainsware.org/ GPG: 6880 4155 74BD FD7C B515 2EA5 4B1D 9E08 A097 C9AE --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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