Hello all,

While troubleshooting this, another observation I see is that when I run put the node in state provide:
'openstack baremetal node provide 97b9a603-f64f-47c1-9fb4-6c68a5b38ff6’
It starts the cleaning process, then the node boots into PXE but the undercloud ignores it.
When I tap the port I see that requests reach its interface:

(undercloud) [stack@interop010 ~]$ sudo tcpdump -i br-ctlplane
10:43:10.600421 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from a0:36:9f:95:dd:e2 (oui Unknown), length 548

But on the same time the dnsmasq ignores it:
(undercloud) [stack@interop010 ~]$ sudo tail -f /var/log/containers/ironic-inspector/dnsmasq.log
Mar 24 10:39:43 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) 6c:ae:8b:69:ee:80 ignored
Mar 24 10:40:36 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) a0:36:9f:95:dd:e2 ignored
Mar 24 10:40:39 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) a0:36:9f:95:dd:e2 ignored
Mar 24 10:40:48 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) 6c:ae:8b:69:ee:80 ignored
Mar 24 10:41:52 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) 6c:ae:8b:69:ee:80 ignored
Mar 24 10:42:57 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) 6c:ae:8b:69:ee:80 ignored
Mar 24 10:43:06 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) a0:36:9f:95:dd:e2 ignored
Mar 24 10:43:10 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) a0:36:9f:95:dd:e2 ignored
Mar 24 10:43:14 dnsmasq-dhcp[7]: DHCPDISCOVER(br-ctlplane) a0:36:9f:95:dd:e2 ignored

Why is that?
What is needed for the cleanup to start?

Thanks,
Igal

On 24 Mar 2021, at 0:09, Igal Katzir <ikatzir@infinidat.com> wrote:

Hello Team,

I had a situation where my undercloud-node had a problem with it’s disk and has disconnected from overcloud.
I couldn’t restore the undercloud controller and ended up re-installing it (running 'openstack undercloud install’).
The installation ended successfully but now I’m in a situation where Cleanup of the overcloud deployed nodes fails:

(undercloud) [stack@interop010 ~]$ openstack baremetal node list
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| UUID                                       | Name       | Instance    UUID        | Power State | Provisioning State | Maintenance |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+
| 97b9a603-f64f-47c1-9fb4-6c68a5b38ff6 | interop025 | None          | power on    | clean failed       | True        |
| 4b02703a-f765-4ebb-85ed-75e88b4cbea5 | interop026 | None          | power on    | clean failed       | True        |
+--------------------------------------+------------+---------------+-------------+--------------------+-------------+

I’ve tried to move node to available state but cannot:
(undercloud) [stack@interop010 ~]$ openstack baremetal node provide 97b9a603-f64f-47c1-9fb4-6c68a5b38ff6
The requested action "provide" can not be performed on node "97b9a603-f64f-47c1-9fb4-6c68a5b38ff6" while it is in state "clean failed". (HTTP 400)

My question is:
How do I make the nodes available again? 
as the deployment of overcloud fails with:
ERROR due to "Message: No valid host was found. , Code: 500” 

Thanks,
Igal