Apache 2.2.3

ittec · 06-03-2008, 05:32 AM

Hello guys

I noticed strange list of apache child process. Im working in a Centos 5 with httpd 2.2.3 prefork mode. Perhaps im wrong but it seems to me that the output of next command was strange

Code:

# ps -ylC httpd --sort:rss

Output:

Code:

   
     UID   PID  PPID  C PRI  NI   RSS    SZ WCHAN  TTY          TIME CMD
S    48  9632  9630  0  85   0  2688 12841 412685 ?        00:00:00 httpd
S    48  9633  9630  0  85   0  2688 12841 413191 ?        00:00:00 httpd
S    48  9634  9630  0  85   0  2688 12841 379361 ?        00:00:00 httpd
S    48  9635  9630  0  85   0  2688 12841 413793 ?        00:00:00 httpd
S    48  9636  9630  0  85   0  2688 12841 392447 ?        00:00:00 httpd
S    48  9637  9630  0  85   0  2688 12841 375559 ?        00:00:00 httpd
S    48  9638  9630  0  85   0  2688 12841 375853 ?        00:00:00 httpd
S    48  9639  9630  0  85   0  2688 12841 349131 ?        00:00:00 httpd
S     0  9630     1  0  78   0  5252 12841 -      ?        00:00:00 httpd

Look last process: UID 0 (root) RSS 5252! when the last is 2688. Im very confused. I think I haven't seen never this. Could someone confirm that output is totally correct? I tried to kill last process and apache continued this work normally. It seems as different apaches? Brlf, I don't understand.

Thanks!

bathory · 06-03-2008, 06:32 AM

It's normal. The process with uid 0 is the initial apache process (you start apache as root in order to bind to port 80) and the rest are apache's child processes running with uid 48.