See the following from the original BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1505926#c4
o/ Dan, thanks very much for taking the bug. FYI there is a fix to the logging situation, see https://bugzilla.redhat.com/show_bug.cgi?id=1505926#c5 if you haven't already. So we now do output during the minor update. However as we discussed in the upgrades team we still want to suggest that the minor update is run on a subset of nodes at a time even without the logging problem so we can still use this BZ to track that info making it into the docs?
Yep, we'll use this an an umbrella for these additional update enhancements.
Also related: https://bugzilla.redhat.com/show_bug.cgi?id=1469596
So I think the items in comment #2 and comment #3 have been covered in the update instructions: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/12/html/upgrading_red_hat_openstack_platform/keeping_openstack_platform_updated#keeping_the_overcloud_updated Closing this BZ.