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CentOS-6.2 & Upstart: Alternative to starting process with runlevel @ boot-up

CentOS release 6.2
upstart-0.6.5-10.el6.x86_64

Can anyone recommend an alternative event to runlevel change when auto-starting a process at boot up?

I've written the following upstart script to respawn a process after reboot (and gracefully shutdown before system shutdown/reboot). It seems to work fine (though please let me know if you recommend any improvements).

Quote:

start on stopped rc RUNLEVEL=4
stop on starting rc RUNLEVEL=[!4]

kill timeout 300

respawn
respawn limit 2 30

script
. /opt/####/env.sh
export ####_####RAWA_NIC=eth1
export ####_####RAWB_NIC=eth2
export ####_####_OUTBOUND_NIC=eth0
exec /opt/####/bin/LINUX-2.6/rhel/gcc41/64/#### -l /opt/ronin/####/configs -c ####-mc-server-####.xml > /opt/####_logs/run-mc-server-####.sh 2>&1
end script

Granted, I don't know a great deal about the Linux boot process, but I've tried the following without success and our admins are getting tired of me constantly rebooting the expensive server :)

#start on started networking
#start on startup
#start on (local-filesystems)
#start on started net-device-up IFACE=lo
#start on started net-device-up IFACE=eth1
#start on started net-device-up IFACE=eth2
#start on started net-device-up IFACE=eth0

CentOS/Redhat service start and stop

Are you trying to start the service upstart?
I am not very clear but I am guessing you want to get the effect of command

Code:

service upstart start

Except that you want it to run and end at certain runlevels. Am I correct?

On CentOS you can do

Code:

chkconfig --level 35 service_name on

And it would make the service start and stop gracefully for runlevels 3 and 5.
In particular you may issue command

Code:

chkconfig --level 35 upstart on

This would start and stop the service named upstart for you when the systems enters or exits run levels 3 and 5.

From: Farzan Jameel Mufti MS (CS, Theoretical Math), MEng (Internetworking)

Hi Farzan,

I'm not trying to start Upstart - Upstart is the replacement for init and is probably the first process launched by the kernel automatically. I'm trying to have Upstart start my script after any event other than a runlevel change.

The default runlevel of this machine is runlevel 4 and as you can see in the script quoted above, requires 3 network interfaces (eth0, eth1, eth2). So it would have to be triggered by any event after runlevel4 is reached and after all network interfaces are brought online.

Thanks

Sorry, I keep my knowledge up to date but did not know that init has been replaced. Well, I issued command pstree on my CentOS 6.0 and it still shows me init as the first process.

In any case, my answer above should still solve your problem. I would not try to mess with the start up script of any process. You still need to know chkconfig command and instead of --level 35 you would need --level 4. If you can name a few services that you would need to start and stop I can tell you the commands.

Apart, you can try the utility
ntsysv

Hope this helps.

From: Farzan Jameel Mufti MS (CS, Theoretical Math), MEng (Internetworking)

Hi,

what about starting the script after all the services have started on reboot,
from "rc.local" ?
A sudo & su from rc.local example.

good luck