Mongrel users - Feb 2007 - Multiple Processes Spawned from mongrel_rails start ?

Hello,

I have mongrel 1.0.1, rails 1.2.2 ruby 1.8.5 running on Centos 4.4.

When I execute the mongrel_rails start -d I see that 3 processes are spawned. 
See below:

[root at ccc aaa]# mongrel_rails start -d
[root at ccc aaa]# ps -def |grep mong
root      2743     1  9 07:14 ?        00:00:01 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
root      2744  2743  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
root      2745  2744  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d

Is this normal?

When I had mongrel 0.3.13.3, rails 1.1.0, ruby 1.8.4 on rhel 4 only 1 process
would be spawned.

I realize I changed versions of EVERYTHING so I''m wondering if this is
now the normal behavior or if something is going wrong.

Regards

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> I have mongrel 1.0.1, rails 1.2.2 ruby 1.8.5 running on Centos 4.4.
>
> When I execute the mongrel_rails start -d I see that 3 processes are
spawned.  See below:
>
> [root at ccc aaa]# mongrel_rails start -d
> [root at ccc aaa]# ps -def |grep mong
> root      2743     1  9 07:14 ?        00:00:01 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
> root      2744  2743  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
> root      2745  2744  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
>
> Is this normal?
>
> When I had mongrel 0.3.13.3, rails 1.1.0, ruby 1.8.4 on rhel 4 only 1
process would be spawned.
>
> I realize I changed versions of EVERYTHING so I''m wondering if
this is
> now the normal behavior or if something is going wrong.
>
Search the list for this issue... I don''t remember the particulars
other
than some OS''s report three instances via ps even though there really
is
only one running...

-philip

On Thu, 15 Feb 2007 04:24:51 -0800
<mongrel_users at homerlex.mailshell.com> wrote:
> Hello,
> 
> I have mongrel 1.0.1, rails 1.2.2 ruby 1.8.5 running on Centos 4.4.
> 
> When I execute the mongrel_rails start -d I see that 3 processes are
spawned.  See below:
> 
> [root at ccc aaa]# mongrel_rails start -d
> [root at ccc aaa]# ps -def |grep mong
> root      2743     1  9 07:14 ?        00:00:01 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
> root      2744  2743  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
> root      2745  2744  0 07:14 ?        00:00:00 /usr/bin/ruby
/usr/bin/mongrel_rails start -d
Yep, some operating systems seem to list one process as many and I''m
not sure why.  Here''s the ps from my archlinux setup:

zedshaw at gigantor ~/p/testapp> mongrel_rails start -d
zedshaw at gigantor ~/p/testapp> ps ax | grep mongrel_rails
19605 ?        Sl     0:01 /usr/bin/ruby /usr/bin/mongrel_rails start -d
19641 pts/0    S+     0:00 grep mongrel_rails
zedshaw at gigantor ~/p/testapp> 

So, it''s just how the ps or process stuff works on that particular
flavor.

-- 
Zed A. Shaw, MUDCRAP-CE Master Black Belt Sifu
http://www.zedshaw.com/
http://www.awprofessional.com/title/0321483502 -- The Mongrel Book
http://mongrel.rubyforge.org/
http://www.lingr.com/room/3yXhqKbfPy8 -- Come get help.