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automatic failover instances

asked 2015-03-15 15:18:51 -0600

Hi all!

Does Juno have live automatic failover/evacuate instances (live migration when node failed)?

If not - what about roadmap?


Best regards, Seva Vayner

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answered 2015-03-15 23:37:12 -0600

mrbriancollins gravatar image

updated 2015-03-15 23:39:05 -0600

Features Like HA / DRS depend on cluster functionality. The concepts of openstack do not depend on this functionality so no cluster is implemented. The intention is to create 2 copies of your app and use a loadbalancer between nodes. No need for failover to another node......

that being said nova supports live migration. and host evacuation. if you mounted your /var/lib/nova/ between hosts that is...

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answered 2015-03-15 23:00:50 -0600

There is nothing that does automatic fail over unless you use vsphere as compute for your hypervisor.

There is however an admin function in nova to restart instances on another HV if you have a failed HV.

You could write a script to automatically run nova evaluate if and when you have a failed HV. You could even have something like zabbix monitor and execute this command when it notices a failed HV.

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Asked: 2015-03-15 15:18:51 -0600

Seen: 2,625 times

Last updated: Mar 15 '15