3:45 p.m.
Thank you it works now.
The issue was the lack of the auth element.
qemu has access to /etc/ceph/ceph.conf. Specifying the host elements in the source element
caused a crash:
error: Failed to start domain test0
error: internal error process exited while connecting to monitor: char device redirected
to /dev/pts/3
server name not found: thinkmate3:6789;thinkmate4:6789 (No such file or directory)
unable to parse addrs in 'thinkmate3:6789;thinkmate4:6789'
mon/MonClient.cc: In function 'void MonClient::_pick_new_mon()' thread
7fd1de5d67c0 time 2012-08-06 15:40:38.191920
mon/MonClient.cc: 424: FAILED assert(monmap.size() > 0)
ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030)
1: (MonClient::_pick_new_mon()+0x40a) [0x7fd1dd6f4e8a]
2: (MonClient::_reopen_session()+0x187) [0x7fd1dd6f8c47]
3: (MonClient::authenticate(double)+0x1aa) [0x7fd1dd6f9fea]
4: (librados::RadosClient::connect()+0xb6c) [0x7fd1dd63d6ec]
5: (()+0x94393) [0x7fd1de698393]
6: (()+0x801e5) [0x7fd1de6841e5]
7: (()+0x80366) [0x7fd1de684366]
8: (()+0x802d9) [0x7fd1de6842d9]
9: (()+0x80ee7) [0x7fd1de684ee7]
10: (()+0xa3b03) [0x7fd1de6a7b03]
11: (()+0xfec4b) [0x7fd1de702c4b]
12: (()+0x11fbc2
On Monday, August 06, 2012 01:33:34 PM Josh Durgin wrote:
On 08/06/2012 12:12 PM, Jeff Strunk wrote:
> I'm having some trouble creating KVM domains with RBD block devices using
> virsh. I've managed to get virsh to define the domain, but it gives an
> error when trying to start the domain:
> error: Failed to start domain test0
> error: internal error process exited while connecting to monitor: char
> device redirected to /dev/pts/3 kvm: -drive
> file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw: error
> connecting
This is the relevant error. If you don't have an /etc/ceph/ceph.conf
file, or it (or the keyring file possibly) is unreadable by qemu due to
apparmor/selinux etc, you'll need to specify all the information needed
to connect in the drive xml. This includes the monitor host and the
libvirt secret uuid, i.e.:
<disk type='network' device='disk'>
<driver name='qemu' type='raw'/>
<source protocol='rbd' name='rbd/test0'>
<host name='thinkmate3' port='6789'/>
<host name='thinkmate4' port='6789'/>
</source>
<auth username='admin'>
<secret type='ceph'
uuid='f0836fcb-9c05-5ccf-653a-eb1d0308e247'/>
</auth>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04'
function='0x0'/>
</disk>
Josh
> kvm: -drive file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw:
> could not open disk image rbd:rbd/test0: No such file or directory>
>>From libvirt's QEMU log:
> 2012-08-06 18:36:57.788+0000: starting up
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
> QEMU_AUDIO_DRV=none /usr/bin/kvm -name test0 -S -M pc-1.0 -enable-kvm -m
> 1024 -smp 1,sockets=1,cores=1,threads=1 -uuid
> 3e727624-f336-d674-4e0c-234641fc9987 -nodefconfig -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/test0.monitor,server,now
> ait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
> -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
> file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=vi
> rtio-disk0,bootindex=1 -drive
> if=none,id=drive-ide0-1-0,readonly=on,format=raw -device
> ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev
> tap,fd=19,id=hostnet0 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:8c:e4:92,bus=pci.0,ad
> dr=0x3 -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -vnc 127.0.0.1:0 -vga cirrus -!>
> device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
>
> Domain id=5 is tainted: high-privileges
> char device redirected to /dev/pts/2
> kvm: -drive file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw:
> error connecting kvm: -drive
> file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw: could not
> open disk image rbd:rbd/test0: No such file or directory 2012-08-06
> 18:36:58.353+0000: shutting down
>
> I can, however, successfully run a KVM virtual machine with an RBD block
> device with the following command:
> kvm -drive file=rbd:rbd/test1,id=drive-virtio-disk0,format=raw -cdrom
> /var/lib/libvirt/images/ubuntu-12.04-server-amd64.iso
>
> kvm will boot with the "-drive
> file=rbd:rbd/test0,if=none,id=drive-virtio-disk0,format=raw" options, but
> the disk is not detected unless "if=none" is removed.
>
> Has anyone else figured this out?
>
> Thank you,
> Jeff
>
> Here is my rbd pool definition:
> ######### BEGIN
> <pool type="rbd">
> <name>rbd</name>
> <source>
> <name>rbd</name>
> <host name='thinkmate3' port='6789'/>
> <host name='thinkmate4' port='6789'/>
> <auth username='admin' type='ceph'>
> <secret uuid='f0836fcb-9c05-5ccf-653a-eb1d0308e247'/>
> </auth>
> </source>
> </pool>
> ######### END
>
> My rbd volumes:
> # virsh vol-list rbd
> Name Path
> -----------------------------------------
> test0 rbd/test0
> test1 rbd/test1
> test2 rbd/test2
>
> Here is my domain definition:
> ######### BEGIN
> <domain type='kvm'>
>
> <name>test0</name>
> <uuid>3e727624-f336-d674-4e0c-234641fc9987</uuid>
> <memory unit='KiB'>1048576</memory>
> <currentMemory unit='KiB'>1048576</currentMemory>
> <vcpu placement='static'>1</vcpu>
> <os>
>
> <type arch='x86_64' machine='pc-1.0'>hvm</type>
> <boot dev='hd'/>
>
> </os>
> <features>
>
> <acpi/>
> <apic/>
> <pae/>
>
> </features>
> <clock offset='utc'/>
> <on_poweroff>destroy</on_poweroff>
> <on_reboot>restart</on_reboot>
> <on_crash>restart</on_crash>
> <devices>
>
> <emulator>/usr/bin/kvm</emulator>
> <disk type='network' device='disk'>
>
> <driver name='qemu' type='raw'/>
> <source protocol='rbd' name='rbd/test0'/>
> <target dev='vda' bus='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x04'
> function='0x0'/>
>
> </disk>
> <disk type='block' device='cdrom'>
>
> <driver name='qemu' type='raw'/>
> <target dev='hdc' bus='ide'/>
> <readonly/>
> <address type='drive' controller='0' bus='1'
target='0' unit='0'/>
>
> </disk>
> <controller type='ide' index='0'>
>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x01'
> function='0x1'/>
>
> </controller>
> <controller type='usb' index='0'>
>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x01'
> function='0x2'/>
>
> </controller>
> <interface type='network'>
>
> <mac address='52:54:00:8c:e4:92'/>
> <source network='default'/>
> <model type='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03'
> function='0x0'/>
>
> </interface>
> <serial type='pty'>
>
> <target port='0'/>
>
> </serial>
> <console type='pty'>
>
> <target type='serial' port='0'/>
>
> </console>
> <input type='mouse' bus='ps2'/>
> <graphics type='vnc' port='-1' autoport='yes'/>
> <video>
>
> <model type='cirrus' vram='9216' heads='1'/>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02'
> function='0x0'/>
>
> </video>
> <memballoon model='virtio'>
>
> <address type='pci' domain='0x0000' bus='0x00'
slot='0x05'
> function='0x0'/>
>
> </memballoon>
>
> </devices>
>
> </domain>
> ######## END