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jcombs_31 31st July 2009 16:10

Recommended Memory
 
I'm using a OpenVZ VPS with 512MB memory (1GB burst) and I'm having problems with running out of memory. I would think 512 should be enough. What is the recommended memory for ISPconfig3?

Is it normal to have multiple processes running for a single service? Here is some of TOP sorted by memory usage...


15818 clamav 21 0 85828 71m 472 S 0 13.9 0:00.00 clamd
14230 amavis 18 0 54084 45m 2376 S 0 8.9 0:00.66 amavisd-new
15499 amavis 18 0 54852 44m 1656 S 0 8.7 0:00.00 amavisd-new
15500 amavis 18 0 54852 44m 1652 S 0 8.7 0:00.00 amavisd-new
15523 root 15 0 31476 28m 2096 S 0 5.6 0:00.28 spamd
15768 root 18 0 31476 27m 640 S 0 5.3 0:00.00 spamd
15769 root 18 0 31476 26m 548 S 0 5.3 0:00.00 spamd
14293 mysql 15 0 142m 17m 4972 S 0 3.4 0:00.16 mysqld
17411 root 18 0 24508 8820 5504 S 0 1.7 0:00.08 apache2
17426 www-data 18 0 24640 6876 3344 S 0 1.3 0:00.00 apache2
17423 www-data 15 0 24640 6828 3316 S 0 1.3 0:00.00 apache2
17425 www-data 17 0 24640 6820 3312 S 0 1.3 0:00.00 apache2

centvpser 31st July 2009 21:06

I've just been wondering the same thing.

All my processes seem to be using even more memory than yours :confused:

it's even weirder because...
-I don't even have any sites really running on it either
-I'm running 32bit
-also the mem usage seems to creep up quite quickly and i was having to restart the chunky services quite often

I saw a perl script somewhere that'd optimize mysqld, but i cant seem to find it again.. not sure if that'll help..
tried editing the clamav config file, but i didnt manage to lower it

centvpser 31st July 2009 21:07

oh found the mysql tuner:
http://wiki.mysqltuner.com/MySQLTuner

don't know if that'll help... but i'm going to give it a shot.

jcombs_31 31st July 2009 23:52

I had to kill clamav for the time being to free up some memory. I just did a fresh install on a local VM and got about about the same memory usage. Seems like a lot, just wasn't sure if it was normal or not.

till 1st August 2009 11:33

The momeory usage is normal as the default setup contains a complete email and webserver with amavisd and clamav for email scanning. ISPConfig itself does not use much memory, only about 5 - 15 MB for up to a few seconds once a minute.

jcombs_31 1st August 2009 17:08

Thanks for responding Till. Where can I read more about using multi-server setups? I'm assuming I can split these services among multiple servers based on your response? Or am I wrong and does each server need to be set up based on the Perfect Install guides?

I would like to know more in general about multi-server setups with ISPConfig3. Thanks for any info you can provide.

till 2nd August 2009 08:03

All Infos available on multiserver setups are here in the forum, there is no additional documentation available et.

mozart_ar 31st May 2010 19:54

I have the same issue about memory usage of amavis.
Is there a way to reduce the memory usage?
I found this http://marc.info/?l=spamassassin-use...18346997827114 I don't sure that is the same situation.

Here a top screen-shot:
Code:

Mem:    530712k total,  478584k used,    52128k free,    6116k buffers
Swap:  262136k total,  210104k used,    52032k free,    79624k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                       
20176 amavis    20  0  195m  79m 3508 S    0 15.3  0:03.08 amavisd-new                                                   
20177 amavis    20  0  195m  78m 3576 S    0 15.2  0:02.59 amavisd-new                                                   
20172 amavis    20  0  190m  68m 1108 S    0 13.2  0:00.84 amavisd-new                                                   
 2868 mysql    20  0  301m  46m 2976 S    0  8.9  5106779h mysqld                                                         
20735 www-data  20  0  246m  29m  12m S    0  5.7  0:17.82 apache2                                                       
21216 www-data  20  0  246m  29m  12m S    0  5.7  0:02.33 apache2                                                       
 2522 clamav    20  0  241m  29m  516 S    0  5.6  0:30.97 clamd                                                         
21222 www-data  20  0  246m  29m  12m S    0  5.6  0:01.84 apache2                                                       
21101 www-data  20  0  245m  29m  12m S    0  5.6  0:06.30 apache2                                                       
21212 www-data  20  0  244m  28m  12m S    0  5.4  0:01.67 apache2                                                       
21330 www-data  20  0  244m  26m  11m S    0  5.2  0:01.06 apache2                                                       
21209 postfix  20  0  105m 5624 4104 S    0  1.1  0:00.02 smtpd                                                         
 2167 root      20  0  232m 2928 1760 S    0  0.6  0:17.95 apache2                                                       
11934 root      20  0 39276 2908 1292 S    0  0.5  0:18.26 vlogger

I'm running on ISPConfig 3, ubuntu 9.10 x86_64

Thanks

till 31st May 2010 20:08

Quote:

I found this http://marc.info/?l=spamassassin-use...18346997827114 I don't sure that is the same situation.
Thats not related as the default amavisd does not use these kind of lists.

Currently you have 3 amavisd server instances running. If your systemdoes not process huge amounts of email, you can reduce them to 1 by setting the variable

$max_servers=1;

in the amavisd configuration files and then restart amavisd.

mozart_ar 31st May 2010 20:36

Thanks till, I have added that line to file:
/etc/amavis/conf.d/50-user

but setting the value to 0,

$max_servers=0;

because max_servers mean children proccess. After restart the service, I have one entry on top for amavisd-new .


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