[one-users] Problem starting VM over a SSH system datastore

[Ruben S. Montero]

When the images are registered (oneimage create) they are placed (in
filesystem-based datastores) in

$DATASTORE_BASE_PATH/<ds_id>

DATASTORE_BASE_PATH is either from oned.conf or from datastore template
(BASE_PATH attribute).

This images are then copied in the hosts to

$DATASTORE_LOCATION/<ds_id>/<vm_id>/

Note that those are different paths (one for the front-end) and the other
for the hosts.

If you want to access the default location, there is no need to set neither
DATASTORE_BASE_PATH nor DATASTORE_LOCATION.

Cheers

Ruben


On Tue, Dec 10, 2013 at 3:37 PM, <Fernando.Felix at esa.int> wrote:

> Hello everyone,
>
> I'm deploying my first cloud with ONE 4.4 and I'm facing a problem that I
> don't understand. I have read all the related guides and I though I had
> understand them but obviously it's not the case.
> My problem is that after creating a SSH System datastore to just copy the
> VM images from the frontend to the hosts, every time I try to start a
> virtual machine I end up with the following error messages in the log:
>
>
> Tue Dec 10 12:10:47 2013 [TM][I]: Command execution fail:
> /var/lib/one/remotes/tm/shared/clone
> gpodmc.smos.lan:/var/lib/one//datastores/1/91209cfc6a24a39e60b42d9cd6ae5d7f
> dpgsrcorepfw-3.smos.lan:/datastore/109/8/disk.0 8 1
> Tue Dec 10 12:10:47 2013 [TM][I]: clone: Cloning
> /datastore/1/91209cfc6a24a39e60b42d9cd6ae5d7f in
> dpgsrcorepfw-3.smos.lan:/datastore/109/8/disk.0
> Tue Dec 10 12:10:47 2013 [TM][E]: clone: Command "cd /datastore/109/8; cp
> /datastore/1/91209cfc6a24a39e60b42d9cd6ae5d7f /datastore/109/8/disk.0"
> failed: cp: cannot stat `/datastore/1/91209cfc6a24a39e60b42d9cd6ae5d7f': No
> such file or directory
> Tue Dec 10 12:10:47 2013 [TM][E]: Error copying
> gpodmc.smos.lan:/var/lib/one//datastores/1/91209cfc6a24a39e60b42d9cd6ae5d7f
> to dpgsrcorepfw-3.smos.lan:/datastore/109/8/disk.0
> Tue Dec 10 12:10:47 2013 [TM][I]: ExitCode: 1
> Tue Dec 10 12:10:47 2013 [TM][E]: Error executing image transfer script:
> Error copying
> gpodmc.smos.lan:/var/lib/one//datastores/1/91209cfc6a24a39e60b42d9cd6ae5d7f
> to dpgsrcorepfw-3.smos.lan:/datastore/109/8/disk.0
> Tue Dec 10 12:10:47 2013 [DiM][I]: New VM state is FAILED
> Tue Dec 10 12:20:58 2013 [DiM][I]: New VM state is DONE.
> Tue Dec 10 12:20:58 2013 [TM][W]: Ignored: TRANSFER SUCCESS 8
>
>
> The DATASTORE_LOCATION is pointing to "/datastore"
>
> This is the output of the "onedatastore show" command:
>
>
> =========================================================================================
> [oneadmin at gpodmc one]$ onedatastore show 109
> DATASTORE 109
> INFORMATION
> ID             : 109
> NAME           : local_storage
> USER           : oneadmin
> GROUP          : oneadmin
> CLUSTER        : GPOD
> TYPE           : SYSTEM
> DS_MAD         : -
> TM_MAD         : ssh
> BASE PATH      : /datastore/109
> DISK_TYPE      : FILE
>
> DATASTORE
> CAPACITY
> TOTAL:         : -
> FREE:          : -
> USED:          : -
> LIMIT:         : -
>
> PERMISSIONS
>
> OWNER          : um-
> GROUP          : u--
> OTHER          : ---
>
> DATASTORE
> TEMPLATE
> SHARED="NO"
> TM_MAD="ssh"
> TYPE="SYSTEM_DS"
>
>
> =================================================================================
>
> What I really dont't understand is why ONE is trying to access the source
> image from
>
> /datastore/1/91209cfc6a24a39e60b42d9cd6ae5d7f /datastore/109/8/disk.0
>
> instead of using
>
> /var/lib/one/datastores/1/91209cfc6a24a39e60b42d9cd6ae5d7f
> /datastore/109/8/disk.0
> ?
>
> Any body could explain to me what I'm doing wrong, please?
>
> Regards
> Fernando
>
> --
> Fernando Felix-Redondo  [INSA, S.A.]
> fernando.felix at esa.int              Phone: +34 91 813 1368
>
> SMOS DPGS Operations
> Ground Segment System Engineer
> ESA - ESAC
>
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-- 
-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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