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From Vikrama Sanjeeva <viki.sanje...@gmail.com>
Subject [users@httpd] Help me in setting up MaxClients
Date Mon, 25 Jan 2010 13:56:37 GMT
Hello All,

This is regarding production servers. Recently Apache server hit MaxClient
settings; resulting in crash of sites. However, sites was back to normal
after restarting Apache.

I read about MaxClient settings and increase it from 200 to 250 (as I read
somewhere that 256 is a limit). Since then sites are working fine. But still
I see average concurrent request on Apache is 180-200 which sometime goes to
220 as well. This is threatening, as we are planning to put more sites live
on same Apache.

Therefore, I am considering to increase MaxClient in order to handle
"at-least" 600 concurrent request.

I will be grateful if somebody can assist me in setting the right values for
ServerLimit, MaxClient, MinSpareServers and MaxSpareServers. Also, what
maximum values I can have for MaxClients (*want to know max concurrent users
Apache can handle.*)


*Machine Specs are*:

*Manufacturer:* Sun
*Model:* T5240
*Operating System: *Solaris 10 10/08 s10s_u6wos_07b SPARC
*CPU(s):* 2x UltraSPARC-T2+ @1415 MHz; 128 Cores 128 Threads
*Memory:* 32544 MB


*Apache Version*:
*Server version:* Apache/2.2.11 (Unix)
*Server built:*   Jan  5 2009 22:19:26

*Existing MaxClient Settings*:

<IfModule prefork.c>
StartServers       8
MinSpareServers    5
MaxSpareServers   20
MaxClients       250
MaxRequestsPerChild  0
</IfModule>

Note: I am not good in Solaris/*.nix commands :(

Bye,
Viki.

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