linux:high_availability_virtualization_cluster
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Table of Contents
Description
Instructions on how to deploy a high availability KVM cluster based on CentOS 6.x
Instructions
- Deploy Centos (minimal)
- Enjoy with basic networking.
- Disable SELINUX
- Install EPEL meta-pkg:
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
- Install basic pkgs (for me):
yum -y install vim tmux lsof strace
- Update:
yum update
- Enjoy with multipathd+storage
- Install the clusterware suite:
yum groupinstall "High Availability" "Resilient Storage"
- In the “master” node, install the admin suite:
yum groupinstall "High Availability Management"
- Change the password for “ricci” user:
passwd ricci
- Configure services:
chkconfig ricci on chkconfig luci on chkconfig cman on chkconfig modclusterd on
- Disable NetworkManager:
chkconfig NetworkManager off && service NetworkManager stop
- Setup at least one bridge, for example having 4 interfaces: eth0+eth1=bonding, eth2+eth3=bridge:
- ifcfg-eth[01]
DEVICE=eth[01] TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=none MASTER=bond0 SLAVE=yes
- ifcfg-eth[23]
DEVICE=eth[23] ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=none BRIDGE=br0
- ifcfg-br0
DEVICE=br0 TYPE=Bridge ONBOOT=yes BOOTPROTO=none USERCTL=no
- ifcfg-bond0
DEVICE=bond0 ONBOOT=yes BOOTPROTO=static USERCTL=no NETWORK=10.54.0.0 IPADDR=10.54.0.20 NETMASK=255.255.255.0 BROADCAST=10.52.0.255 GATEWAY=10.54.0.1
- Start services: <code bash> service ricci start service luci start service cman start </code> If luci refuses to start, read the troubleshoot section.
- Access the luci UI or Conga formatively (the url is displayed after staring luci).
chkconfig iptables off && service iptables stop
Troubleshoot
Luci
If you get an error like this:
Unable to create the luci base configuration file (`/var/lib/luci/etc/luci.ini').
You can try to:
rpm -e --nodeps python-webob-0.9.6.1-3.el6.noarch easy_install WebOb==1.0.8
This should be enough, but if you're still having problems running luci, follow with that instructions: Edit that file:
vi /usr/lib/python2.6/site-packages/pylons/decorators/__init__.py
And comment/remove the line (line ~20):
from webob import UnicodeMultiDict
That is.
thanks to dmabry and Michael Pedersen combining their post I were able to run Luci.
linux/high_availability_virtualization_cluster.1377850318.txt.gz · Last modified: 2013/08/30 08:11 by dodger