[PLUG] Shell command needs an explanation

[Rich Shepard]

On Sun, 8 Aug 2004, Rich Shepard wrote:

>   Thanks. Where do I find the meaning of the USR1 option to kill? The man
> page doesn't have it.

  But, the apache Web site does. Apparently this is one of three signals
that can be sent to the parent httpd process. USR1 means graceful restart:

"The USR1 signal causes the parent process to advise the children to exit
after their current request (or to exit immediately if they're not serving
anything). The parent re-reads its configuration files and re-opens its log
files. As each child dies off the parent replaces it with a child from the
new generation of the configuration, which begins serving new requests
immediately."

  Sorta' like stem cell growth.

  The other two signals are TERM and HUP. The first halts the parent process
and the second restarts the parent process _now_.

  Just need to ask google the proper way to find the answer.

Thanks, all,

Rich

-- 
Dr. Richard B. Shepard, President
Applied Ecosystem Services, Inc. (TM)
<http://www.appl-ecosys.com>