Re: [Openstack] How to make HA between VMs in the openstack

2013-04-09 Thread Steven Hardy
On Mon, Apr 08, 2013 at 07:23:08PM +0800, Lei Zhang wrote: > Hi Syed, > Thanks for you quickly reply. But What I want is HA between VMs not HA > between Physical Machine(Openstack Node/ Services) You may be interested in the Heat HA features since we implement a simple HA capability: https://wiki

Re: [Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Lei Zhang
Another question, what's you mean about FIP? floating ip? But how can I switch the floating IPs and implement with keepalive/pacemaker? On Mon, Apr 8, 2013 at 11:17 PM, Lei Zhang wrote: > Hi Ritesh > How could I switch the virtual ip from one VM to another? As I know, the > libvirt nw-filter wi

Re: [Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Lei Zhang
Hi Ritesh How could I switch the virtual ip from one VM to another? As I know, the libvirt nw-filter will block this? right? Or not use nw-filter? On Mon, Apr 8, 2013 at 10:18 PM, Ritesh Nanda wrote: > Hello Lei, > >Both ways can be used, depends if you want your database to be > accessible

Re: [Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Ritesh Nanda
Hello Lei, Both ways can be used, depends if you want your database to be accessible outside the datacenter network as highly available then FIP can be used , if it would internal services that would be using database , then you can implement using Fixed ips , but for that , you need to mark fi

Re: [Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Lei Zhang
Hi Syed, Thanks for you quickly reply. But What I want is HA between VMs not HA between Physical Machine(Openstack Node/ Services) On Mon, Apr 8, 2013 at 7:20 PM, Syed Armani wrote: > Hi Lei Zhang, > > You can find more information about HA in OpenStack in this guide: > http://docs.openstack.or

Re: [Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Syed Armani
Hi Lei Zhang, You can find more information about HA in OpenStack in this guide: http://docs.openstack.org/trunk/openstack-ha/content/index.html Best regards, Syed Armani On Monday 08 April 2013 04:46 PM, Lei Zhang wrote: > Hi all, > > I am using Folsom, and I want to set up a HA between VMs. F

[Openstack] How to make HA between VMs in the openstack

2013-04-08 Thread Lei Zhang
Hi all, I am using Folsom, and I want to set up a HA between VMs. For example, I have two DB VMs. One is the primary and other is a slave. I want to use Keepalive or pacemake to switch between them when one is failed. But how to implement this? Because in general, we need a dynamic IP to associat