[openstack-dev] [nova] Host health monitoring

Roman Dobosz roman.dobosz at intel.com
Mon Dec 8 14:20:04 UTC 2014


On Wed, 3 Dec 2014 08:44:57 +0100
Roman Dobosz <roman.dobosz at intel.com> wrote:

> I've just started to work on the topic of detection if host is alive or
> not: https://blueprints.launchpad.net/nova/+spec/host-health-monitoring
> 
> I'll appreciate any comments :)

I've submitted another blueprint, which is closely bounded with previous one: 
https://blueprints.launchpad.net/nova/+spec/pacemaker-servicegroup-driver

The idea behind those two blueprints is to enable Nova to be aware of host 
status, not only services that run on such. Bringing Pacemaker as a driver for 
servicegroup will provide us with two things: fencing and reliable information 
about host state, therefore we can avoid situations, where some actions will 
misinterpret information like service state with host state.

Comments?

-- 
Kind regards
Roman



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