openstack team mailing list archive

[Lei Zhang <zhang.lei.fly@xxxxxxxxx>]

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 <riteshnanda09@xxxxxxxxx>wrote:

> 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
> fixed_ip as  reserved in the nova database fixed_ip table the ip you would
> be using as a virtual ip, otherwise ip would be allocated to another vm you
> provision in openstack.
> I hope that gives the answer.
>
>
> On Mon, Apr 8, 2013 at 4:53 PM, Lei Zhang <zhang.lei.fly@xxxxxxxxx> wrote:
>
>> 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 <syed.armani@xxxxxxxxxxx>wrote:
>>
>>> 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. 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
>>> > associate to the VMs and change the relationship when necessary. But
>>> > which IP should be used ? Floating ip or Fixed IP? and how.
>>> >
>>> > --
>>> > Lei Zhang
>>> >
>>> > Blog: http://jeffrey4l.github.com
>>> > twitter/weibo: @jeffrey4l
>>> >
>>> >
>>> > _______________________________________________
>>> > Mailing list: https://launchpad.net/~openstack
>>> > Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>>> > Unsubscribe : https://launchpad.net/~openstack
>>> > More help   : https://help.launchpad.net/ListHelp
>>> >
>>>
>>>
>>
>>
>> --
>> Lei Zhang
>>
>> Blog: http://jeffrey4l.github.com
>> twitter/weibo: @jeffrey4l
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~openstack
>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~openstack
>> More help   : https://help.launchpad.net/ListHelp
>>
>>
>
>
> --
>
> * With Regards
> *
>
> * Ritesh Nanda
> *
>
> ***
> *
> <http://www.ericsson.com/>
>
>
>
>


-- 
Lei Zhang

Blog: http://jeffrey4l.github.com
twitter/weibo: @jeffrey4l