[openstack-dev] [neutron] neutron DB upgrade

Ihar Hrachyshka ihrachys at redhat.com
Tue Apr 21 13:04:49 UTC 2015


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On 04/21/2015 02:25 PM, Guo, Ruijing wrote:
> Somebody can help me to understand why neutron DB is needed upgrade
> even in refresh installation unlike other components.
> 

refresh installation == minor version upgrade for a stable release?
No, it should not require db upgrade, it's forbidden to backport
patches that involve db migration to stable releases.

> From my understanding,  DB upgrade is risky and needed when
> upgrade.
> 
> Release A should have schema A and Release B should have schema B.
> 
> Only upgrade A to B need to upgrade DB.
> 
> In the same time,  can we separate neutron DB as vendor DB &
> non-vendor DB?

Not sure what you mean. Neutron does not distinguish between
deployment scenarios in terms of db schema. It's always the same (at
least that's the case since Juno).

/Ihar
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