Hi Igor Yeah, I took but I have to understand what I am seeing :) After your reply, I have launched a ab benchmark with some values and I have a related question. Srv Child Server number - generation, what does it mean? Keep in mind that my first objective is to find how to monitor, how can I say?, the "current clients" in some point in time vs Max Clients and finally see when Apache reach this limit. With mod-status Im seeing request/sec, idle and busy workers, the Srv number (don't understand that, is related with MaxPerChild?) etc. But still does not know how monitor "current clients". My excuses if I am writing a lot of stupid questions but it is important to have cristal clear this point. Thanks RubÃn Ortiz Administrador de Sistemas Edificio nova gran via Av. Gran VÃa, 16-20, 2Â planta | 08902 L'Hospitalet de Llobregat (Barcelona) T 902 999 343 | F 902 999 341 www.grupoitnet.com -----Mensaje original----- De: Igor GaliÄ [mailto:i.galic@xxxxxxxxxxxxxx] Enviado el: jueves, 18 de noviembre de 2010 16:24 Para: users@xxxxxxxxxxxxxxxx Asunto: Re: Easiest way to monitoring when Apache reach MaxClients. ----- "RubÃn Ortiz" <ruben.ortiz@xxxxxxxx> wrote: > Hi all > > It is my very first email to community asking help and advices to > Apache > system administration. I have worked with Apache since 2004 on CentOS > distribution most of the time. > > Currently I am worried about MaxClients. I work today with Apache > 2.2.16 > with prefork and KeepAlives disabled. I can't explain that, I should > do some > test to verify Apache has more performance with KeepAlives on , it is > something historic I could say. I know there are differences between > prefork > and mpm but I think it is a high level for me today. > > Anyway I am working to discover how discover when Apache reach > MaxClients. > And I having different sensations depending which command I execute on > bash. please take a look at mod_status > Which I try to explain is: > > -bash-3.2# netstat -anp |grep :80|wc -l > 2 > > Connections (whatever type of connections) against port 80. However, > one > thing is the connections and other the processes of Apache: > > -bash-3.2# ps axuf |grep httpd > root 15427 0.0 0.0 5184 696 pts/0 S+ 12:48 0:00 > \_ > grep httpd > root 17477 0.0 1.1 45216 8568 ? Ss 11:51 0:00 > /usr/sbin/httpd > apache 17480 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17481 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17482 0.0 0.5 45216 4536 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17483 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17484 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17485 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17486 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > apache 17487 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ > /usr/sbin/httpd > > > And then my doubt. In working environment, to be able to control > "Clients" > of Apache, to avoid or maintain a monitoring of MaxClients reached, > how to > monitor? Processes or Connections? I think will be something more > closer to > processes, using ps, than something related with Tcp connections and > netstat. > > Well, any advices will be welcome. > > Thanks! > > > > > > > > RubÃn Ortiz > Administrador de Sistemas > Edificio nova gran via > Av. Gran VÃa, 16-20, 2Â planta | 08902 L'Hospitalet de Llobregat > (Barcelona) > > T 902 999 343 | F 902 999 341 > www.grupoitnet.com > > > > --------------------------------------------------------------------- > 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 GaliÄ Tel: +43 (0) 664 886 22 883 Mail: i.galic@xxxxxxxxxxxxxx URL: http://brainsware.org/ --------------------------------------------------------------------- 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 --------------------------------------------------------------------- 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