[openstack-operators] RBD problems after data center power outage
eblock at nde.ag
Fri Oct 18 11:29:58 UTC 2019
I assumed the header was missing because of this message:
> error reading header from
> c2b54eac-179b-4907-9d61-8e075edc21cf_disk.config: No such file or
If you can stat the header file can you share the output of
rados -p vms listomapvals rbd_header.<BLOCK_PREFIX>
Are there rbd_data objects left in the pool from that config drive?
rados -p images ls | grep <BLOCK_PREFIX>
If yes, maybe there's a way to set things back together, which I
haven't done yet. Are all affected VMs referring to a config drive and
is it always the config drive object that's missing?
Zitat von Dinçer Çelik <hello at dincercelik.com>:
> Hi Eugen,
> I think this is not the same situation with I’m facing because I can
> get rbd headers.
> /* Please encrypt every message you can. Privacy is your right,
> don't let anyone take it from you. */
> /* My fingerprint is: 5E50 ABB0 F108 24DA 10CC BD43 D2AE DD2A 7893 0EAA */
>> On 18 Oct 2019, at 09:44, Eugen Block <eblock at nde.ag> wrote:
>> I've recently found this post  to recover a failing header, but
>> I haven't tried it myself. I'm curios if it works though.
>> Zitat von Dinçer Çelik <hello at dincercelik.com>:
>>> Today I had a data center power outage, and the OpenStack cluster
>>> went down. After taking the cluster up again, I cannot start some
>>> VMs due to error below. I've tried "rbd object-map rebuild" but it
>>> didn't work. What's the proper way to re-create the missing
>>> "_disk.config" files?
>>> [instance: c2b54eac-179b-4907-9d61-8e075edc21cf] Failed to start
>>> libvirt guest: libvirt.libvirtError: internal error: qemu
>>> unexpectedly closed the monitor: 2019-10-17T23:19:41.103720Z
>>> qemu-system-x86_64: -drive
>>> file=rbd:vms/c2b54eac-179b-4907-9d61-8e075edc21cf_disk.config:id=nova:auth_supported=cephx\;none:mon_host=10.250.129.10\:6789\;10.250.129.11\:6789\;10.250.129.12\:6789\;10.250.129.15\:6789,file.password-secret=ide0-0-0-secret0,format=raw,if=none,id=drive-ide0-0-0,readonly=on,cache=writeback,discard=unmap: error reading header from c2b54eac-179b-4907-9d61-8e075edc21cf_disk.config: No such file or
>>> /* Please encrypt every message you can. Privacy is your right,
>>> don't let anyone take it from you. */
>>> /* My fingerprint is: 5E50 ABB0 F108 24DA 10CC BD43 D2AE DD2A 7893 0EAA */
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