Re: Who actually gets the TERM signal in "runsvctrl down"?

[Jim Zajkowski <jim@jimz.net>]

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On Jun 25, 2004, at 12:03 PM, Lloyd Zusman wrote:

> I don't want to send a TERM signal to httpd in order to stop it, 
> because
> I want it to shut down using the same logic that "apachectl stop" uses,
> which is definitely not to simply send a TERM signal to the httpd
> daemon.

 From httpd (1.3.29) -h:

   -F: run main process in foreground, for process supervisors

 From the httpd manpage:

   To stop it, send a TERM signal to the initial (parent) process.

httpd is designed to run directly under daemontools / runit using the 
- -F parameter to prevent it from detaching and running in the 
background.  What that means: you don't need to, or really should, use 
apachectl.

>   #!/bin/sh
>   [...]
>   apachectl start

Great: apachectl start returns while httpd runs in the background, 
which means daemontools / runit will run your script again, and again.  
You'll need to sleep endlessly.

I run a bunch of webservers all using daemontools control of httpd 
directly.  Works well and is highly reliable.

It seems to me you are missing the fundamental technique that 
daemontools / runit is based around.   This is like trying to use dd as 
a text editor.

- --Jim

- - - -
Jim Zajkowski          OpenPGP 0x21135C3    http://www.jimz.net/pgp.asc
System Administrator  8A9E 1DDF 944D 83C3 AEAB  8F74 8697 A823 2113 5C53
UM Life Sciences Institute

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