Re: [one-users] OpenNebula 3.4 with Clustered LVM

Vogl, Yves Fri, 11 May 2012 04:19:59 -0700

Hi Jaime,

On 11.05.2012, at 13:05, Jaime Melis wrote:

do you have in /var/log/one/429.log more information on the error?

Fri May 11 12:35:46 2012 [DiM][I]: New VM state is ACTIVE.

Fri May 11 12:35:50 2012 [LCM][I]: New VM state is PROLOG.

Fri May 11 12:35:50 2012 [VM][I]: Virtual Machine has no context

Fri May 11 12:35:50 2012 [TM][I]: Command execution fail: /var/lib/one/remotes/tm/lvm/clone one01:/dev/vg01/master kvm02.ams-cloud.de:/var/lib/one//datastores/0/429/disk.0

Fri May 11 12:35:50 2012 [TM][I]: /var/lib/one/remotes/tm/lvm/../../datastore/xpath.rb: unrecognized option `--stdin'

Fri May 11 12:35:50 2012 [TM][E]: clone: Command " set -e

Fri May 11 12:35:50 2012 [TM][I]: mkdir -p /var/lib/one/datastores/0/429

Fri May 11 12:35:50 2012 [TM][I]: sudo lvcreate -s -L512 -n /dev/vg01/master-429-0 /dev//dev/vg01/master//dev/vg01/master

Fri May 11 12:35:50 2012 [TM][I]: ln -s "/dev//dev/vg01/master//dev/vg01/master-429-0" "/var/lib/one/datastores/0/429/disk.0"" failed: sudo: sorry, you must have a tty to run sudo

Fri May 11 12:35:50 2012 [TM][E]: Error cloning /dev//dev/vg01/master//dev/vg01/master to /dev//dev/vg01/master//dev/vg01/master-429-0

Fri May 11 12:35:50 2012 [TM][I]: ExitCode: 1

Fri May 11 12:35:50 2012 [TM][E]: Error executing image transfer script: Error cloning /dev//dev/vg01/master//dev/vg01/master to /dev//dev/vg01/master//dev/vg01/master-429-0

Fri May 11 12:35:51 2012 [DiM][I]: New VM state is FAILED

Fri May 11 12:50:11 2012 [DiM][I]: New VM state is DONE.

Fri May 11 12:50:11 2012 [TM][W]: Ignored: LOG I 429 ExitCode: 0

Fri May 11 12:50:11 2012 [TM][W]: Ignored: LOG I 429 delete: Deleting /var/lib/one/datastores/0/429

Fri May 11 12:50:11 2012 [TM][W]: Ignored: LOG I 429 ExitCode: 0

Fri May 11 12:50:11 2012 [TM][W]: Ignored: TRANSFER SUCCESS 429 -

BTW, the fact that the LV has master in it it's pretty strange. Have you registered it using oneimage create <image.tpl> -d <lvm_datastore_id>

Yes.

And does the image.tpl have a PATH pointing to a file that holds the image?

I've no file that holds the image. /dev/vg1/master is an already populated "master image" in form of a logical volume.

I created it like this:

qemu-img convert Master.qcow2 -O raw /dev/vg1/master

Thanks,

Yves

On 11.05.2012, at 13:05, Jaime Melis wrote:

Hello Yves,

do you have in /var/log/one/429.log more information on the error?

BTW, the fact that the LV has master in it it's pretty strange. Have you registered it using oneimage create <image.tpl> -d <lvm_datastore_id>

And does the image.tpl have a PATH pointing to a file that holds the image?

cheers,
Jaime

On Fri, May 11, 2012 at 12:47 PM, Vogl, Yves <v...@adesso-mobile.de> wrote:

Hi Jamie,

thanks for you answer.

I did the steps you suggested and fail with an error - it seems that there's something messed up when deploying a vm.
The error occures on cloning.

Error executing image transfer script: Error cloning /dev//dev/vg01/master//dev/vg01/master to /dev//dev/vg01/master//dev/vg01/master-429-0

I intended to clone /dev/vg01/master to /dev/vg01/master-429-0

I'll have a look at the drivers - but maybe I'm doing something wrong?

Thanks,
Yves

Thats my datastore:

DATASTORE 105 INFORMATION
ID : 105
NAME : kvm02
USER : oneadmin
GROUP : oneadmin
CLUSTER : -
DS_MAD : lvm
TM_MAD : lvm
BASE PATH : /var/lib/one/datastores/105

PERMISSIONS
OWNER : um-
GROUP : u--
OTHER : ---

DATASTORE TEMPLATE
DS_MAD="lvm"
HOST="kvm02.example.org"
TM_MAD="lvm"
VG_NAME="vg1"

That my image:

IMAGE 20 INFORMATION
ID : 20
NAME : Master
USER : oneadmin
GROUP : oneadmin
DATASTORE : kvm02
TYPE : OS
REGISTER TIME : 05/11 12:32:10
PERSISTENT : No
SOURCE : /dev/vg01/master
SIZE : 0
STATE : used
RUNNING_VMS : 1

PERMISSIONS
OWNER : um-
GROUP : ---
OTHER : ---

IMAGE TEMPLATE
BUS="virtio"
DEV_PREFIX="hd"
DRIVER="raw"

That's my template:

TEMPLATE 23 INFORMATION
ID : 23
NAME : kvm02
USER : oneadmin
GROUP : oneadmin
REGISTER TIME : 05/11 12:32:56

PERMISSIONS
OWNER : um-
GROUP : ---
OTHER : ---

TEMPLATE CONTENTS
CPU="100"
DISK=[
BUS="virtio",
DRIVER="raw",
IMAGE="Master",
IMAGE_UNAME="oneadmin" ]
FEATURES=[
PAE="no" ]
MEMORY="1024"
NAME="kvm02"
NIC=[
NETWORK="kvm02",
NETWORK_UNAME="oneadmin" ]
OS=[
ARCH="x86_64",
BOOT="hd" ]
RAW=[
TYPE="kvm" ]
TEMPLATE_ID="23"
VCPU="1"

That's my instantiated template_

VIRTUAL MACHINE 429 INFORMATION
ID : 429
NAME : one-429
USER : oneadmin
GROUP : oneadmin
STATE : FAILED
LCM_STATE : LCM_INIT
START TIME : 05/11 12:34:53
END TIME : 05/11 12:35:51
DEPLOY ID : -

VIRTUAL MACHINE MONITORING
NET_TX : 0
USED CPU : 0
USED MEMORY : 0
NET_RX : 0

PERMISSIONS
OWNER : um-
GROUP : ---
OTHER : ---

VIRTUAL MACHINE TEMPLATE
CPU="100"
DISK=[
BUS="virtio",
CLONE="YES",
DATASTORE="kvm02",
DATASTORE_ID="105",
DISK_ID="0",
DRIVER="raw",
IMAGE="Master",
IMAGE_ID="20",
IMAGE_UNAME="oneadmin",
READONLY="NO",
SAVE="NO",
SOURCE="/dev/vg01/master",
TARGET="hda",
TM_MAD="lvm",
TYPE="DISK" ]
ERROR=[
MESSAGE="Error executing image transfer script: Error cloning /dev//dev/vg01/master//dev/vg01/master to /dev//dev/vg01/master//dev/vg01/master-429-0",
TIMESTAMP="Fri May 11 12:35:50 2012" ]
FEATURES=[
PAE="no" ]
MEMORY="1024"
NAME="one-429"
NIC=[
BRIDGE="br0",
IP="176.9.163.37",
MAC="02:00:b0:02:a3:04",
NETWORK="kvm02",
NETWORK_ID="10",
NETWORK_UNAME="oneadmin",
VLAN="NO" ]
OS=[
ARCH="x86_64",
BOOT="hd" ]
RAW=[
TYPE="kvm" ]
TEMPLATE_ID="23"
VCPU="1"
VMID="429"

VIRTUAL MACHINE HISTORY
SEQ HOSTNAME REASON START TIME PTIME
0 kvm02.ams-cloud erro 05/11 12:35:46 0d 00:00 0d 00:00

On 10.05.2012, at 20:01, Jaime Melis wrote:

> Hello Yves,
>
> there was a big change from OpenNebula 3.2 to 3.4, and we pulled out the LVM drivers temporarily. The new LVM drivers are already in place for the next OpenNebula release 3.6 [1][2][3].
>
> However, those new drivers will not work for as-is OpenNebula 3.4, you will need to apply the following patch:
>
> --- a/src/tm_mad/lvm/clone
> +++ b/src/tm_mad/lvm/clone
> -VM_ID=$3
> +VM_DIR=$(basename `dirname $DST`)
>
> Note that I haven't tested it with OpenNebula 3.4, but they should work like that. If it doesn't, please let me know and I'll be glad to help.
>
> [1] http://opennebula.org/documentation:rel3.6:lvm_ds
> [2] https://github.com/OpenNebula/one/tree/master/src/datastore_mad/remotes/lvm
> [3] https://github.com/OpenNebula/one/tree/master/src/tm_mad/lvm
>
> Cheers,
> Jaime
>
> On Thu, May 10, 2012 at 7:06 PM, Vogl, Yves <v...@adesso-mobile.de> wrote:
> Hi,
>
> I've setup OpenNebula 3.4 together with 5 KVM hosts.
> Those 6 hosts are member of a clustered LVM.
>
> The OpenNebula host holds the „Master“ image in form of a logical volume "/dev/vg1/master".
> Every KVM host synchronizes with this image and therefore has a local copy of this image represented by its own "/dev/vg1/master" volume.
>
> Now I'd like OpenNebula to deploy a virtual machine by creating a new logical volume as LVM snapshot from /dev/vg1/master - manually it'll look like this on the KVM host:
>
> # lvcreate -n vm01 -L40G -s /dev/vg1/master
>
> When the virtual machine is removed, I just need a:
>
> # lvremove -f /dev/vg1/vm01
>
>
> I've read in the change logs of OpenNebula 3.2 that the tm_lvm driver was removed and superseded by the iSCSI driver.
> I'm clueless… iSCSI simply is not LVM…
>
>
> My next step would be to create a custom transfer manage to realize the steps I need.
> But… do I really need to do this?
>
>
> Help from someone who's running the same setup is greatly appreciated :-)
>
>
> Thanks so far,
>
> Yves
>
>
>
>
> _______________________________________________
> Users mailing list
> Users@lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>
>
>
> --
> Jaime Melis
> Project Engineer
> OpenNebula - The Open Source Toolkit for Cloud Computing
> www.OpenNebula.org | jme...@opennebula.org

--
Jaime Melis
Project Engineer
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org | jme...@opennebula.org

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Re: [one-users] OpenNebula 3.4 with Clustered LVM

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