Re: Centos 7 qemu

[Ignazio Cassano <ignaziocassano@xxxxxxxxx>]

Hi all, thank you for your answers and your effort.

I ' like also to know if there is difference between mapping rbd device and using them like normal block device (/dev/rbd....) in kvm and using  qemu-img e libvirt support for rbd.

Are there performances issues in first case ?

Regards

Ignazio

2014-10-06 7:16 GMT+02:00 Vladislav Gorbunov <vadikgo@xxxxxxxxx>:

Try to disable selinux or run

setsebool -P virt_use_execmem 1

2014-10-06 8:38 GMT+12:00 Nathan Stratton <nathan@xxxxxxxxxxxx>:

I did the same thing, build the RPMs and now show rbd support, however when I try to start an image I get:

2014-10-05 19:48:08.058+0000: 4524: error : qemuProcessWaitForMonitor:1889 : internal error: process exited while connecting to monitor: Warning: option deprecated, use lost_tick_policy property of kvm-pit instead.

qemu-kvm: -drive file=rbd:volumes/volume-205e6cb4-15c1-4f8d-8bf4-aedcc1549968:id=volumes:key=AQCMrSlUSJvTLxAAO9U+3IZQSkLU8a3iWj7T5Q==:auth_supported=cephx\;none:mon_host=10.71.0.75\:6789\;10.71.0.76\:6789\;10.71.0.77\:6789\;10.71.0.78\:6789,if=none,id=drive-virtio-disk0,format=raw,serial=205e6cb4-15c1-4f8d-8bf4-aedcc1549968,cache=none: could not open disk image rbd:volumes/volume-205e6cb4-15c1-4f8d-8bf4-aedcc1549968:id=volumes:key=AQCMrSlUSJvTLxAAO9U+3IZQSkLU8a3iWj7T5Q==:auth_supported=cephx\;none:mon_host=10.71.0.75\:6789\;10.71.0.76\:6789\;10.71.0.77\:6789\;10.71.0.78\:6789: Driver 'rbd' is not whitelisted

I tried with an without auth.

><>
nathan stratton | vp technology | broadsoft, inc | +1-240-404-6580 | www.broadsoft.com

On Sun, Oct 5, 2014 at 3:51 PM, Henrik Korkuc <lists@xxxxxxxxx> wrote:

Hi,
Centos 7 qemu out of the box does not support rbd.

I had to build package with rbd support manually with "%define rhev 1" in qemu-kvm spec file. I also had to salvage some files from src.rpm file which were missing from centos git.

On 2014.10.04 11:31, Ignazio Cassano wrote:

Hi all,
I'd like to know if centos 7 qemu and libvirt suppirt rbd or if there are some extra packages.
Regards

Ignazio

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