Proposed F19 Feature: High Availability Container Resources

Bill Nottingham notting at redhat.com
Mon Jan 28 19:18:06 UTC 2013


Jaroslav Reznik (jreznik at redhat.com) said: 
> = Features/ High Availability Container Resources =
> https://fedoraproject.org/wiki/Features/High_Availability_Container_Resources
> 
> Feature owner(s): David Vossel <dvossel at redhat.com> 
> 
> The Container Resources feature allows the HA stack (Pacemaker + Corosync) 
> residing on a host machine to extend management of resources into virtual 
> guest instances (KVM/LXC). 
> 
> == Detailed description ==
> This feature is in response to the growing desire for high availability 
> functionality to be extended outside of the host into virtual guest instances. 
> Pacemaker is currently capable of managing virtual guests, meaning Pacemaker 
> can start/stop/monitor/migrate virtual guests anywhere in the cluster, but 
> Pacemaker has no ability to manage the resources that live within the virtual 
> guests. At the moment these virtual guests are very much a black box to 
> Pacemaker.
> 
> The Container Resources feature changes this by giving Pacemaker the ability 
> to reach into the virtual guests and manage resources in the exact same way 
> resources are managed on the host nodes. Ultimately this gives the HA stack 
> the ability to manage resources across all the nodes in cluster as well as any 
> virtual guests that reside within those cluster nodes. 

Does this require the management to live on the virtual host, or can it be
done entirely remotely with the cluster management server residing elsewhere
and talking to all the virtual guest instances directly?

Bill


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