This change would need to be very clearly mentioned in Documentation/Release Notes. It could be a really nasty surprise for an operator expecting the current behavior.
On Wed, Apr 25, 2018 at 8:14 AM, Dmitry Tantsur <dtant...@redhat.com> wrote: > Hi all, > > I'd like to restart conversation on enabling node automated cleaning by > default for the undercloud. This process wipes partitioning tables > (optionally, all the data) from overcloud nodes each time they move to > "available" state (i.e. on initial enrolling and after each tear down). > > We have had it disabled for a few reasons: > - it was not possible to skip time-consuming wiping if data from disks > - the way our workflows used to work required going between manageable and > available steps several times > > However, having cleaning disabled has several issues: > - a configdrive left from a previous deployment may confuse cloud-init > - a bootable partition left from a previous deployment may take precedence > in some BIOS > - an UEFI boot partition left from a previous deployment is likely to > confuse UEFI firmware > - apparently ceph does not work correctly without cleaning (I'll defer to > the storage team to comment) > > For these reasons we don't recommend having cleaning disabled, and I > propose to re-enable it. > > It has the following drawbacks: > - The default workflow will require another node boot, thus becoming > several minutes longer (incl. the CI) > - It will no longer be possible to easily restore a deleted overcloud node. > > What do you think? If I don't hear principal objections, I'll prepare a > patch in the coming days. > > Dmitry > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.op > enstack.org_cgi-2Dbin_mailman_listinfo_openstack-2Ddev&d= > DwIGaQ&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=Xkn6r > 0Olgrmyl97VKakpX0o-JiB_old4u22bFbcLdRo&m=ymioAO-4rAyApEj0Gix > bEC4KhMk6z9HBlW_z5nqnuno&s=hg1h8si71iXioJ-TvA3F2ZVt1O7ipViyYI3MASclYpI&e= > -- Kent S. Gordon kent.gor...@verizonwireless.com Work:682-831-3601 Mobile: 817-905-6518
__________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev