4:40 a.m.
Hi,
I currently have a 3-node HA cluster running Proxmox (with integrated Ceph). oVirt looks
pretty neat, however, and I'm excited to check it out.
One of the things I love about Proxmox is the integrated Ceph support.
I saw on the mailing lists that there is some talk of Ceph support earlier, but it was via
OpenStack/Cinder. What exactly does this mean?
1. Does this require you to install OpenStack, or will a vanilla Ceph installation work?
2. Is it possible to deploy Ceph on the same nodes that run oVirt? (i.e. is a 3-node oVirt
+ Ceph cluster possible?)
3. Is there any monitoring/management of Ceph from within oVirt? (Guessing no?)
4. Are all the normal VM features working yet, or is this planned?
5. Is making Ceph a first-class citizen (like Gluster) on oVirt on the roadmap?
Thanks,
Victor
https://www.reddit.com/r/ovirt/comments/ci38zp/ceph_rbd_support_in_ovirt_...
4:58 a.m.
The current plan to integrate ceph is via cinderlib integration[1]
(currently in tech preview mode) because we still have no packaging
ready, there are some manual installation steps required, but there is
no need to install and configure openstack/cinder
1. Does this require you to install OpenStack, or will a vanilla Ceph
installation work?
a vanilla installation will work with cinderlib
2. Is it possible to deploy Ceph on the same nodes that run oVirt?
(i.e. is a 3-node oVirt + Ceph cluster possible?)
I haven't tried it, but should
be possible
3. Is there any monitoring/management of Ceph from within oVirt?
(Guessing no?)
No, cinderlib is storage agnostic
4. Are all the normal VM features working yet, or is this planned?
Most features (starting/stopping/snapshots/live migration) are
working, but not all are fully tested (specifically snapshots)
5. Is making Ceph a first-class citizen (like Gluster) on oVirt on the
roadmap?
Not at the moment, maybe once cinderlib integration matures and we
have more feedback and users for the feature
[1]
https://www.ovirt.org/develop/release-management/features/storage/cinderl...
On Sun, Nov 24, 2019 at 12:41 PM <victorhooi(a)yahoo.com> wrote:
Hi,
I currently have a 3-node HA cluster running Proxmox (with integrated Ceph). oVirt looks
pretty neat, however, and I'm excited to check it out.
One of the things I love about Proxmox is the integrated Ceph support.
I saw on the mailing lists that there is some talk of Ceph support earlier, but it was
via OpenStack/Cinder. What exactly does this mean?
1. Does this require you to install OpenStack, or will a vanilla Ceph installation work?
2. Is it possible to deploy Ceph on the same nodes that run oVirt? (i.e. is a 3-node
oVirt + Ceph cluster possible?)
3. Is there any monitoring/management of Ceph from within oVirt? (Guessing no?)
4. Are all the normal VM features working yet, or is this planned?
5. Is making Ceph a first-class citizen (like Gluster) on oVirt on the roadmap?
Thanks,
Victor
https://www.reddit.com/r/ovirt/comments/ci38zp/ceph_rbd_support_in_ovirt_...
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4:55 a.m.
Am 24.11.19 um 11:58 schrieb Benny Zlotnik:
The current plan to integrate ceph is via cinderlib integration[1]
(currently in tech preview mode) because we still have no packaging
ready, there are some manual installation steps required, but there is
no need to install and configure openstack/cinder
> 1. Does this require you to install OpenStack, or will a vanilla Ceph installation
work?
a vanilla installation will work with cinderlib
> 2. Is it possible to deploy Ceph on the same nodes that run oVirt? (i.e. is a 3-node
oVirt + Ceph cluster possible?)
I haven't tried it, but should be possible
> 3. Is there any monitoring/management of Ceph from within oVirt? (Guessing no?)
No, cinderlib is storage agnostic
> 4. Are all the normal VM features working yet, or is this planned?
Most features (starting/stopping/snapshots/live migration) are
working, but not all are fully tested (specifically snapshots)
> 5. Is making Ceph a first-class citizen (like Gluster) on oVirt on the roadmap?
Not at the moment, maybe once cinderlib integration matures and we
have more feedback and users for the feature
[1]
https://www.ovirt.org/develop/release-management/features/storage/cinderl...
We are using Ceph with oVirt (via standalone Cinder) extensively in a
production environment.
I tested oVirt cinderlib integration in our dev environment, gave some
feedback here on the list and am currently waiting for the future
development. IMHO cinderlib in oVirt is currently not fit for production
use, I think this matches your assessment.
What can we do to help advance Ceph integration in oVirt?
What are the plans for oVirt 4.4?
Will standalone Cinder storage domains still be supported in oVirt 4.4?
Will there be a migration scenario from standalone Cinder to cinderlib?
Accidentally just yesterday I had an incident in our test environment
where migration of a VM with MANAGED_BLOCK_STORAGE (=cinderlib) disks
failed (causes are known and unrelated to cinderlib). Restarting the VM
failed because of leftover rbdmapped devices. This is similar to the
case I reported in https://bugzilla.redhat.com/show_bug.cgi?id=1697496.
I don't clearly see if this fixed or not. Shall I report my recent problem?
thanks
Matthias
6:11 a.m.
We are using Ceph with oVirt (via standalone Cinder) extensively in
a
production environment.
I tested oVirt cinderlib integration in our dev environment, gave some
feedback here on the list and am currently waiting for the future
development. IMHO cinderlib in oVirt is currently not fit for production
use, I think this matches your assessment.
What can we do to help advance Ceph integration in oVirt?
What are the plans for oVirt 4.4?
Will standalone Cinder storage domains still be supported in oVirt 4.4?
Will there be a migration scenario from standalone Cinder to cinderlib?
TBH, to
help, bug reports are probably the most useful. Having
feedback from users with "real world" setups
and usage will help us improve. As stated before, our biggest issue at
the moment is packaging, once it's handled
it will be significantly easier to test and develop.
Standalone cinder domains were never actually supported (never left
tech preview), we do not have immediate plans
for an upgrade path, but you can definitely submit an RFE for this
Accidentally just yesterday I had an incident in our test
environment
where migration of a VM with MANAGED_BLOCK_STORAGE (=cinderlib) disks
failed (causes are known and unrelated to cinderlib). Restarting the VM
failed because of leftover rbdmapped devices. This is similar to the
case I reported in https://bugzilla.redhat.com/show_bug.cgi?id=1697496.
I don't clearly see if this fixed or not. Shall I report my recent problem?
We
added better cleanup for migration cleanup to handle the bug.
There is another issue which was not known at the time with multipath
preventing unmapping rbd devices[1], and it might be what you
experienced.
This can be fixed manually by blacklisting rbd devices in multipath
conf, but once the bug is fixed vdsm will handle configuring it.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1755801
1975
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1984
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3 comments
3 participants
participants (3)
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Benny Zlotnik -
Matthias Leopold -
victorhooi＠yahoo.com