[one-users] Help with datastore feature

[Robert Schweikert]

On 05/11/2012 04:17 PM, Ruben S. Montero wrote:
> Hi Robert,
>
>  From your output it seems that the problem is probably at the libvirt
> configuration. In particular:
>
> Fri May 11 14:48:00 2012 [VMM][I]: WARNING: no socket to connect to

Well, I have made no changes from previous working versions w.r.t. 
libvirtd configuration.

>
> Could you double check the configuration hints at
>
> http://www.opennebula.org/documentation:rel3.4:kvmg#kvm_configuration

# cat /etc/polkit-1/localauthority/50-local.d/60-suseNebula-access.pkla 
[Remote libvirt SSH access]
  Identity=unix-user:oneadmin
  Action=org.libvirt.unix.manage
  ResultAny=yes
  ResultInactive=yes
  ResultActive=yes

Which matches the config given in the doc.

- tcp listening is enabled
# grep tcp /etc/libvirt/libvirtd.conf
listen_tcp = 1
#tcp_port = "16509"
#auth_tcp = "sasl"

- ownership change is disabled
# grep owner /etc/libvirt/qemu.conf
# Whether libvirt should dynamically change file ownership
# Set to 0 to disable file ownership changes.
dynamic_ownership = 0

- On SUSE distribution libvirtd is started with -l command line option, 
thus there is no need for modification of /etc/default/libvirt-bin
# grep startproc /etc/init.d/libvirtd
         startproc $LIBVIRTD_BIN -d -l

- The oneadmin user is part of the kvm, root, and cloud groups (on SUSE 
there is no libvirtd group, everything w.r.t. libvirtd is part of root).
# grep oneadmin /etc/group
root:x:0:oneadmin
kvm:!:105:qemu,oneadmin
cloud:!:1000:oneadmin

Thus the libvirtd configuration appears to be OK. I switched the driver 
from qcow2 to shared, the /var/lib/one directory is nfs mounted on the 
cloud node
# mount | grep one
192.168.1.202:/var/lib/one on /var/lib/one type nfs4 
(rw,relatime,vers=4,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.203,minorversion=0,local_lock=none,addr=192.168.1.202)

But I still appears to have a permission problem
  cat /var/log/one/0.log
Fri May 11 19:25:09 2012 [DiM][I]: New VM state is ACTIVE.
Fri May 11 19:25:09 2012 [LCM][I]: New VM state is PROLOG.
Fri May 11 19:25:09 2012 [VM][I]: Virtual Machine has no context
Fri May 11 19:25:32 2012 [TM][I]: clone: Cloning 
../../1/2b7b3d62a1684540409e2073f3b0b036 in 
192.168.1.203:/var/lib/one//datastores/0/0/disk.0
Fri May 11 19:25:32 2012 [TM][I]: ExitCode: 0
Fri May 11 19:25:32 2012 [LCM][I]: New VM state is BOOT
Fri May 11 19:25:32 2012 [VMM][I]: Generating deployment file: 
/var/lib/one/0/deployment.0
Fri May 11 19:25:33 2012 [VMM][I]: ExitCode: 0
Fri May 11 19:25:33 2012 [VMM][I]: Successfully execute network driver 
operation: pre.
Fri May 11 19:25:33 2012 [VMM][I]: Command execution fail: cat << EOT | 
/var/tmp/one/vmm/kvm/deploy /var/lib/one//datastores/0/0/deployment.0 
192.168.1.203 0 192.168.1.203
Fri May 11 19:25:33 2012 [VMM][I]: WARNING: no socket to connect to
Fri May 11 19:25:33 2012 [VMM][I]: error: Failed to create domain from 
/var/lib/one//datastores/0/0/deployment.0
Fri May 11 19:25:33 2012 [VMM][I]: error: internal error process exited 
while connecting to monitor: kvm: -drive 
file=/var/lib/one//datastores/0/0/disk.0,if=none,id=drive-ide0-0-0,format=qcow2: 
could not open disk image /var/lib/one//datastores/0/0/disk.0: 
Permission denied
Fri May 11 19:25:33 2012 [VMM][I]:
Fri May 11 19:25:33 2012 [VMM][E]: Could not create domain from 
/var/lib/one//datastores/0/0/deployment.0
Fri May 11 19:25:33 2012 [VMM][I]: ExitCode: 255
Fri May 11 19:25:33 2012 [VMM][I]: Failed to execute virtualization 
driver operation: deploy.
Fri May 11 19:25:33 2012 [VMM][E]: Error deploying virtual machine: 
Could not create domain from /var/lib/one//datastores/0/0/deployment.0
Fri May 11 19:25:34 2012 [DiM][I]: New VM state is FAILED

The disk.0 file exists:
ls -l /var/lib/one/datastores/0/0
total 560428
-rw-r--r-- 1 oneadmin cloud       630 May 11 23:25 deployment.0
-rw-r----- 1 oneadmin cloud 573308928 May 11 23:25 disk.0

When I changed the mode to 644 on disk.0 it still failed with the same 
error.

More help is needed.

Thanks,
Robert


-- 
Robert Schweikert                           MAY THE SOURCE BE WITH YOU
SUSE-IBM Software Integration Center                   LINUX
Tech Lead
rjschwei at suse.com
rschweik at ca.ibm.com
781-464-8147