Re: [cobalt-users] RaQ4r FTP kills the server - help!

["satan" <satan@xxxxxxxxxxxxxxxx>]

Hi  James,

Your cobalt will allo aroung 5 meg of ram for each httpd process ( this look
absurbe to but that true) More traffic you have, more ram you will use, I
have average 60 gig of transfer/month on one XTR and it take his whole 256
meg Ram, we are upgrading the system on monday morning !!!
Mine is worse than your, cpu bottlenect lock out everything including the
front lcd panel, the only way to have it back is a hard shutdown, really bad
(never buy a XTR my friend). I also have raqs 4, they work great (no mail
stat, I think thats a webalizer problem), fast never had a real problem, but
the process CASPENG was making a cpu bottlenect on both, I disable the ASP
administrative server.

Disable asp administrative server and other service you are not using. Mysql
never take any ressource, and I never heard of a problem related with that !

You can tune your server using the control panel parameter if you have an
XTR or editing httpd.conf !!! You should be able to able to gain some
ressource with a good tune up, but from my own knowledge you will rarely
have keep good performance under 512 meg of ram.

For a optimal system, it should be 1gig ram and a full class C ip per server
(250 web site), and a T1 connection or equivalent speed per server.
We are usinf this config and our system give a very good performance.
(using currently 512 meg ram, but already 400 is taken for 70 web site, so
if you do the calcul and you extrapole)


Your best bet is to leave a top running always from a remote computer, if
possible a ps -aux , and see what happen. A patch have recently be released
for proftpd you may want to try that, may not be bad , that a security
correction.

If your server run like mine around 50 meg of memory left, (what can happen
when you ftp, the system may become instable and request more cpu for
swaping file purpose, more your oher service running !


Hope you will find and correct you problem, Your system doesn`t look to be
that low in ressource, you should look forward to identify if it is really
ftpd that use all ressources or something else.

Step1:
See if you are really victim of cpu bottleneck

Step 2:
Identify the cause of this cpu bottleneck (process)

Step3:
Look what configuration, patch or update are available for the service


God help you, I cannot do better without a soul in exchange
Stephan Gilbert
satan@xxxxxxxxxxxxxxxx

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