On 07/24/2012 10:08 AM, Alessandro Tagliapietra wrote: > But i don't see any part (except the future plans) talking about HA at > instance level, that seems more to an application level >
Currently heat's healthchecking is application only, but we do intend to improve instance healthchecking in v6. We are currently in our v5 development which concludes on July 30th. We have 4-5 week development windows. I'll make certain vm healthchecking is solid for v6 around August. However, we may be able to fit into v5 - I'll have to check with the main author of the HA feature (Angus Salkeld). The HA feature HOWTO is described a bit here: https://github.com/heat-api/heat/wiki/Using-HA An example HA application template is here: https://github.com/heat-api/heat/blob/master/templates/WordPress_Single_Instance_With_HA.template This template launches a wordpress cloud application. If httpd or mysql fail, they are restarted. If they fail 3 times in 5 minutes, the entire VM is restarted (this is called escalation) under the assumption that the VM container is defective in some way. Regards -steve > Il giorno 24/lug/2012, alle ore 18:56, Jay Pipes ha scritto: > >> On 07/24/2012 12:52 PM, Alessandro Tagliapietra wrote: >>> Thank you Jay, never read about that. >>> Seems something like scalr/chef? WHich handles application and keeps a >>> minimum number of vm running? >> >> Yeah, kinda.. just one more way of doing things... :) >> -jay > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
