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  1. Bug #1592118
  2. Comment #6

Comment 6 for bug 1592118

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Denis Meltsaykin (dmeltsaykin) wrote : Re: Adding new node to MOS 8 env without MU installed still updates the new node with latest packages and breaks compatibility.

RCA: The issue is caused by the fix of https://bugs.launchpad.net/nova/+bug/1518200. This happens because not updated controllers have no such a piece of code https://github.com/openstack/nova/blob/stable/liberty/nova/db/sqlalchemy/api.py#L4496-L4497, which is needed by https://github.com/openstack/nova/blob/stable/liberty/nova/compute/manager.py#L817.
As it was a real bug and it was fixed, I believe we shouldn't revert it in our branch making the divergence with upstream. So the workarounds stay the same: one needs either to update the whole environment with MU or to disable updates repository before adding new computes/controllers.