Hi, On Wed, Sep 23, 2009 at 11:04:14AM +0300, Denis Chapligin wrote: > Hi > > How order constraints are processed when in of the resources, mentioned > in constraints is migrated? > > For example - i have two xen resources A&B > with migratin enabled. I create a order constraint "First A then B" and > start both resources. Everything is ok, until i try to migrate A > resource to another node, during migration B resource is stopped and > then started. I suppose that migration is not a resource stopping, so > dependend processes should not be bothered.
The order constraint means: if resource A is not running then resource B can't run either. So, in order to stop A, you have to stop B first. Though there are non-symmetrical constraints in which stop order is not required to be the opposite of the start order. So, if this is not what you want/expect, perhaps you don't need an order constraint. Can you describe the resources and how they depend on each other. Thanks, Dejan > > -- > Denis Chapligin > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
