[openstack-dev] [nova] upgrade_levels in nova upgrade

2015-05-07 Thread Guo, Ruijing
Hi, All, In existing design, we need to reconfig nova.conf and restart nova service during post-upgrade cleanup As https://www.rdoproject.org/Upgrading_RDO_To_Icehouse: I propose to send RPC message to remove RPC API version pin. 1. Stop services (same with existing) 2. Upgrade

Re: [openstack-dev] [nova] upgrade_levels in nova upgrade

2015-05-07 Thread Rui Chen
Assuming my understanding is correct, 2 things make you sad in the upgrade process. 1. must reconfig the 'upgrade_levels' in the config file during post-upgrade. 2. must restart the service in order to make the option 'upgrade_level' work. I think the configuration management tools (e.g. chef,