Re: [Lxc-users] shutting down CentOS6 container
On Mon, 2011-10-17 at 23:04 +0300, Iliyan ilf Stoyanov wrote: Hi again, what about lxc-execute? br, --ilf Hi, lxc-execute is the lxc-start variant to run application containers. Use lxc-attach if you need to issue a command in an already running container. Cheers. On Mon, 2011-10-17 at 21:02 +0100, Milos Negovanovic wrote: On Mon, Oct 17, 2011 at 10:36:24PM +0300, Iliyan ilf Stoyanov wrote: Hi Milos, have you tried doing lxc-console --name $NAME_OF_YOUR_CENTOS6_CONTAINER, then loging in and issuing shutdown -h now. It works for me on Fedora 15/SL6.1. BR, --ilf I am looking for a way to automatically shutdown container. Something I can use from my rc scripts on the host to orderly shutdown containers on host OS reboot/shutdown. I know I can ssh into the container and issue shutdown command, that works, but thats not what I am looking for. Regards -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users -- Gregory Kurz gk...@fr.ibm.com Software Engineer @ IBM/Meiosys http://www.ibm.com Tel +33 (0)534 638 479 Fax +33 (0)561 400 420 Anarchy is about taking complete responsibility for yourself. Alan Moore. -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On 10/17/2011 5:01 PM, Papp Tamas wrote: On 10/17/2011 10:54 PM, Derek Simkowiak wrote: /I tried the python script, it just works fine./ Q1: How does the kill -INT init method affect running processes, especially MySQL and other databases that may need to shutdown gracefully to avoid data corruption? I believe that the child processes (incl. mysqld, apache, etc.) would be able to shutdown gracefully without data corruption, because they'd be killed with a signal that will invoke their internal signal handlers. But, I am looking for independent confirmation. That's right. Q2: How is lxc-stop -n $CONTAINERNAME different from the Python script mentioned below? Will lxc-stop on a container cause an unclean shutdown, or does it also use a Unix signal? lxc-stop is part of the script. If I'm right it's equivalent of pushing the power button of the machine. I would say it's like pulling the power cord. Not just being a pedant. The terminology matters since you are trying specifically to clarify and nail down exactly that all-important behavioral detail. Pressing the power button is ambiguous since pressing the power button can be either a polite signal resulting in a graceful and orderly shutdown, OR not, depending on the machine. And that difference is all the difference in the world. Just in case someone asks I guess you could also say lxc-destroy is like removing everything but the hard drive. -- bkw -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On Mon, Oct 17, 2011 at 10:36:24PM +0300, Iliyan ilf Stoyanov wrote: Hi Milos, have you tried doing lxc-console --name $NAME_OF_YOUR_CENTOS6_CONTAINER, then loging in and issuing shutdown -h now. It works for me on Fedora 15/SL6.1. BR, --ilf I am looking for a way to automatically shutdown container. Something I can use from my rc scripts on the host to orderly shutdown containers on host OS reboot/shutdown. I know I can ssh into the container and issue shutdown command, that works, but thats not what I am looking for. Regards -- Milos Negovanovic milos.negovano...@gmail.com -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On 10/17/2011 10:02 PM, Milos Negovanovic wrote:
On Mon, Oct 17, 2011 at 10:36:24PM +0300, Iliyan ilf Stoyanov wrote:
Hi Milos,
have you tried doing lxc-console --name $NAME_OF_YOUR_CENTOS6_CONTAINER,
then loging in and issuing shutdown -h now. It works for me on Fedora
15/SL6.1.
BR,
--ilf
I am looking for a way to automatically shutdown container. Something I
can use from my rc scripts on the host to orderly shutdown containers on
host OS reboot/shutdown. I know I can ssh into the container and issue
shutdown command, that works, but thats not what I am looking for.
kill -INT init
I use this diff on ubuntu host:
--- lxc.orig2011-10-16 22:59:24.186322805 +0200
+++ lxc2011-10-17 22:10:17.974920307 +0200
@@ -52,6 +52,37 @@
fi
}
+stop_one() {
+name=$1
+#dir_cgroup=`grep -w cgroup /proc/mounts|awk '{ print $2 }'`
+#if [ ! -d $dir_cgroup/$name ]; then
+#log_failure_msg $name is not running.
+#return
+#fi
+if ! is_running $name;then
+log_failure_msg $name is not running.
+fi
+
+echo -n Stopping $name
+pid_init=`lxc-ps --name $name | grep init$ | awk '{ print $2 }'`
+
+kill -INT $pid_init
+count=0
+while lxc-ps --name $name | egrep -qv '(init$|CONTAINERPID
TTY TIME CMD)';do
+if [ $count -ge 600 ];then
+log_failure_msg Container $name cannot be stopped on the
proper way.
+return
+fi
+echo -n '.';
+sleep 1;
+count=$(($count+1))
+done
+
+lxc-stop -n $name
+echo done.
+log_success_msg Container $name has been stopped successfully.
+}
+
action_all() {
action=$1
nolog=$2
@@ -80,7 +111,8 @@
;;
stop)
log_daemon_msg Stopping $DESC
-action_all lxc-stop -n
+#action_all lxc-stop -n
+action_all stop_one
;;
restart|force-reload)
log_daemon_msg Restarting $DESC
tamas
--
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2d-oct
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Re: [Lxc-users] shutting down CentOS6 container
On 10/17/2011 10:26 PM, Milos Negovanovic wrote: If I am not mistaken thats similar approach to using this script: http://pastie.org/2713689 Ive tried using that python script, but instead of shutting down my container restarts! Can you paste your container /etc/inittab by any chance? There is no inittab, Ubuntu and also CentOS 6 uses upstart. I tried the python script, it just works fine. tamas -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
/I tried the python script, it just works fine./ Q1: How does the kill -INT init method affect running processes, especially MySQL and other databases that may need to shutdown gracefully to avoid data corruption? I believe that the child processes (incl. mysqld, apache, etc.) would be able to shutdown gracefully without data corruption, because they'd be killed with a signal that will invoke their internal signal handlers. But, I am looking for independent confirmation. Q2: How is lxc-stop -n $CONTAINERNAME different from the Python script mentioned below? Will lxc-stop on a container cause an unclean shutdown, or does it also use a Unix signal? Thanks, Derek On 10/17/2011 01:37 PM, Papp Tamas wrote: On 10/17/2011 10:26 PM, Milos Negovanovic wrote: If I am not mistaken thats similar approach to using this script: http://pastie.org/2713689 Ive tried using that python script, but instead of shutting down my container restarts! Can you paste your container /etc/inittab by any chance? There is no inittab, Ubuntu and also CentOS 6 uses upstart. I tried the python script, it just works fine. tamas -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On 10/17/2011 10:54 PM, Derek Simkowiak wrote: /I tried the python script, it just works fine./ Q1: How does the kill -INT init method affect running processes, especially MySQL and other databases that may need to shutdown gracefully to avoid data corruption? I believe that the child processes (incl. mysqld, apache, etc.) would be able to shutdown gracefully without data corruption, because they'd be killed with a signal that will invoke their internal signal handlers. But, I am looking for independent confirmation. That's right. Q2: How is lxc-stop -n $CONTAINERNAME different from the Python script mentioned below? Will lxc-stop on a container cause an unclean shutdown, or does it also use a Unix signal? lxc-stop is part of the script. If I'm right it's equivalent of pushing the power button of the machine. t -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On Mon, Oct 17, 2011 at 10:37:04PM +0200, Papp Tamas wrote: On 10/17/2011 10:26 PM, Milos Negovanovic wrote: If I am not mistaken thats similar approach to using this script: http://pastie.org/2713689 Ive tried using that python script, but instead of shutting down my container restarts! Can you paste your container /etc/inittab by any chance? There is no inittab, Ubuntu and also CentOS 6 uses upstart. I tried the python script, it just works fine. tamas OK got it working by tweaking the following config file inside centos6 container: /etc/init/control-alt-delete.conf After I modified the behavior of ctrl-alt-del handling, container shuts down using that python script. Thanks for all the suggestions. :) Regards -- Milos Negovanovic milos.negovano...@gmail.com -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] shutting down CentOS6 container
On 10/17/2011 11:05 PM, Milos Negovanovic wrote: OK got it working by tweaking the following config file inside centos6 container: /etc/init/control-alt-delete.conf After I modified the behavior of ctrl-alt-del handling, container shuts down using that python script. Thanks for all the suggestions. :) This file is the same on ubuntu doesn't need the modification. tamas -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
