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each httpd using 178MB of RES RAM!

tkalfaoglu

Silver Pleskian
Hi there.. I am not sure how to trim the httpd bloat -- the top processes, sorted by memory usage on my server are:

10633 apache 15 0 557m 173m 6472 S 0.3 4.4 0:09.48 httpd
16864 apache 15 0 545m 149m 4704 S 0.0 3.8 0:00.80 httpd
3151 root 15 0 286m 132m 1644 S 0.0 3.3 0:14.78 clamd
14102 apache 15 0 494m 110m 5336 S 0.0 2.8 0:02.20 httpd
16009 apache 16 0 488m 109m 5260 S 10.6 2.8 0:02.26 httpd
16817 apache 15 0 494m 108m 4572 S 0.0 2.7 0:00.77 httpd
16036 apache 15 0 474m 94m 4920 S 0.0 2.4 0:00.88 httpd
16513 apache 15 0 470m 92m 4852 S 0.0 2.3 0:00.81 httpd
7833 tomcat 20 0 1459m 77m 10m S 0.0 2.0 0:04.28 java
4037 mysql 16 0 414m 75m 5492 S 0.0 1.9 0:38.74 mysqld
10359 root 18 0 392m 74m 9136 S 0.3 1.9 0:00.85 httpd
16006 apache 15 0 398m 74m 4260 S 0.0 1.9 0:00.10 httpd
16769 apache 15 0 393m 70m 3632 S 0.0 1.8 0:00.01 httpd
16814 apache 15 0 393m 70m 3516 S 0.0 1.8 0:00.02 httpd
6586 popuser 18 0 169m 70m 3048 R 8.7 1.8 0:22.22 spamd
16511 apache 16 0 393m 70m 3632 S 1.0 1.8 0:00.04 httpd
6590 popuser 16 0 169m 69m 3040 S 5.8 1.8 0:20.23 spamd
6589 popuser 17 0 168m 69m 3084 S 8.7 1.8 0:21.10 spamd

Any ideas where to begin trimming the fat??
Thanks, -turgut
 
Are you using PSA's httpd? I've found it uses many times more memory than the normal centos/rhel apache; probably from loading up every module ever written, you can disable the ones you don't need to shrink it back down.
 
There are a few things you can try - run php as a dso instead of fcgi/cgi as it uses more memory for the cgi/fcgi, dont use suphp (or any variant), disable httpd modules you dont want/need, set rLmits for memory usage, use suhosin so users cant specify high memory usage in ini_set function calls in their php scripts.

173 doesnt seem that high though in comparison, ours use anywhere from 170-400 depending on the application and how long its been running and the system runs ok. A lthough we do run things like cloudlinux that will rate limit applications so it wont take down the system.
 
Hi there.. I am not sure how to trim the httpd bloat -- the top processes, sorted by memory usage on my server are: Any ideas where to begin trimming the fat??
Thanks, -turgut

I recommend an upgrade to Plesk 11.*
They've improved the apache system resource usage, especially with Nginx as a reverse proxy.

*Highly recommended
 
If Plesk 11 is like every other upgrade they've released since 9 came out, I can't wait to try and go through that nightmare.
 
Upgrading to Plesk 11 is pretty easy. If you have shell then you just run the autoinstaller

Code:
/usr/local/psa/admin/sbin/autoinstaller

Otherwise, we are here to help incase you hit port holes :) Also be ready to get a new licence key and your DC should be easily accessible with these keys that is if you bought it from them ...
 
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