I’m not sure what you mean by:
** In above step I choose replace menu.lst **
You are correct about not requiring:
*** Add
http://ubergarm.github.io/ (** I'm not sure I need to add this line **)
I must have left that there as the source of my information – apologies.
Yes, reboot is required.
From: Myungwoo Chun [mailto:mc.tamaki@gmail.com] Sent: Monday, 11 July 2016 2:34 PM To: m.corney@tpg.com.au Cc: domjudge-devel@domjudge.org Subject: Re: Kernel Parameter on AWS EC2
Thank you for fast reply.
But I don't solve the problem with this.
I have several questions about the solution.
Please check parts below which I wrap with ** **.
My instance is Ubuntu 14.04.03 LTS (trusty).
===========================================================================================
sudo -s
apt-get update
apt-get purge linux-image-*
apt-get install linux-image-generic-lts-trusty linux-headers-generic-lts-trusty
** In above step I choose replace menu.lst **
# setup kexec to actually run the kernel you chose w/ the GRUB_CMDLINE options
vi /etc/default/grub
GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"
vi /etc/init.d/rcS
*** Add
http://ubergarm.github.io/ (** I'm not sure I need to add this line **)
if grep -qv ' kexeced$' /proc/cmdline ;then
kexec --load /vmlinuz --initrd=/initrd.img --append='root=LABEL=DOROOT cgroup_enable=memory swapaccount=1 kexeced' &&
mount -o ro,remount / &&
kexec -e
fi
echo "net.ipv4.ip_forward=1" > /etc/sysctl.d/docker.conf
apt-get install kexec-tools
dpkg-reconfigure kexec-tools #yes/yes
# install docker (despite the old package name, lxc is optional as of 0.90)
apt-get install docker cgroup-lite lxc
# libcontainer is default, but im still running lxc for now
vi /etc/default/docker (** At this step, /etc/default/docker is not existed **)
DOCKER_OPTS="-e lxc"
** And then I reboot the instance **
===========================================================================================
After the rebooting,
output of "cat /proc/cmdline" is
===
BOOT_IMAGE=/boot/vmlinuz-3.13.0-91-generic root=UUID=736fad7a-387f-4420-b934-4ccbafa26d16 ro console=tty1 console=ttyS0 crashkernel=384M-:128M
===
Thank you,
Myungwoo Chun
On Mon, Jul 11, 2016 at 12:09 PM, Malcolm Corney m.corney@tpg.com.au wrote:
I have included the steps below for what I did to enable cgroups on an Amazon EC2 instance. The instructions are for “saucy” but “saucy” can be replaced with whichever version of Debian/Ubuntu you are running. Hopefully this will work for you as well.
The information comes from:
https://gist.github.com/ubergarm/9695532 http://ubergarm.github.io/
Malcolm Corney
Alter Boot to allow GRUB loader for CGroups - Required for Amazon Web Services EC2 Instance
=============================================================================================
sudo -s
apt-get update
apt-get purge linux-image-*
apt-get install linux-image-generic-lts-saucy linux-headers-generic-lts-saucy
# setup kexec to actually run the kernel you chose w/ the GRUB_CMDLINE options
vi /etc/default/grub
GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"
vi /etc/init.d/rcS
*** Add
if grep -qv ' kexeced$' /proc/cmdline ;then
kexec --load /vmlinuz --initrd=/initrd.img --append='root=LABEL=DOROOT cgroup_enable=memory swapaccount=1 kexeced' &&
mount -o ro,remount / &&
kexec -e
fi
echo "net.ipv4.ip_forward=1" > /etc/sysctl.d/docker.conf
apt-get install kexec-tools
dpkg-reconfigure kexec-tools #yes/yes
# install docker (despite the old package name, lxc is optional as of 0.90)
apt-get install docker cgroup-lite lxc
# libcontainer is default, but im still running lxc for now
vi /etc/default/docker
DOCKER_OPTS="-e lxc"
From: DOMjudge-devel [mailto:domjudge-devel-bounces@domjudge.org] On Behalf Of Myungwoo Chun Sent: Sunday, 10 July 2016 9:29 PM To: domjudge-devel@domjudge.org Subject: Kernel Parameter on AWS EC2
Hi,
I want to enable cgroups for Java memory issues and running multiple judgedaemons in AWS EC2 Ubuntu 14.04 Server instance.
However, I can't add "quiet cgroup_enable=memory swapaccount=1" since AWS EC2 doesn't use grub.
Is there any method to add kernel parameters to AWS EC2 instance?
Thanks,
Myungwoo Chun