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Re: Nova and external NFS [SOLVED]

To: Sergio Ariel de la Campa Saiz <sacampa@xxxxxxx>
From: Jorge de la Cruz <jorge.delacruz@xxxxxxxxxxxx>
Date: Thu, 26 Apr 2012 12:25:48 +0200 (CEST)
Cc: openstack@xxxxxxxxxxxxxxxxxxx
In-reply-to: <947E2550A3F9C740936DDCC9936667B90256E1CCBCA9@GMVMAIL4.gmv.es>

Thank you Sergio,
Im really glad to hear the solution, and i'll save for the future reference.

Best regards

Jorge de la Cruz
Cloud Architect
www.stackops.com | jorge.delacruz@xxxxxxxxxxxx | +34 91 309 48 77 | skype: jorge.delacruz.stackops

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----- Mensaje original -----

De: "Sergio Ariel de la Campa Saiz" <sacampa@xxxxxxx>
Para: "Jorge de la Cruz" <jorge.delacruz@xxxxxxxxxxxx>
CC: openstack@xxxxxxxxxxxxxxxxxxx
Enviados: Jueves, 26 de Abril 2012 12:16:57
Asunto: RE: [Openstack] Nova and external NFS [SOLVED]

Hi:

First of all thanks to Jorge :-)

I have solved my problem .
I have a NFS server external to my Nova servers, so in NFS server there were not defined the same users that are defined in Nova servers. When I created nova group , nova user , libvirt-qemu user and kvm group with same UID and GID of ones defined in Nova servers , my problem disappeared .

drwxrwxr-x 2 nova nova 4096 abr 26 2012 ./
drwxrwxrwx 4 root root 4096 abr 26 2012 ../
-rw-rw ---- 1 libvirt-qemu kvm 20454 abr 26 2012 console.log
-rw -r--r-- 1 libvirt-qemu kvm 60817408 abr 26 2012 disk
-rw -r--r-- 1 libvirt-qemu kvm 12582912 abr 26 2012 disk.local
-rw -rw -r-- 1 libvirt-qemu kvm 4790624 abr 26 2012 kernel
-rw -rw -r-- 1 nova nova 1820 abr 26 2012 libvirt.xml

Sergio Ariel
de la Campa Saiz
GMV-SES Infraestructura /
GMV-SES Infrastructure

GMV
Isaac Newton, 11
P.T.M. Tres Cantos
E-28760 Madrid
Tel.
+34 91 807 21 00
Fax
+34 91 807 21 99
www.gmv.com

De: Jorge de la Cruz [jorge.delacruz@xxxxxxxxxxxx]
Enviado el: miércoles, 25 de abril de 2012 19:06
Para: Sergio Ariel de la Campa Saiz
CC: openstack@xxxxxxxxxxxxxxxxxxx
Asunto: Re: [Openstack] Nova and external NFS

Hi Sergio,
Dont worry about the questions, this a list for help.
I see that nobody:nogroup is the owner of the top folder, i think this is wrong, change with a chown -R to root:root for the top folder, be sure of all the files have root:root, and try again.

drwxrwxr-x 2 nobody nogroup 4096 abr 25 2012 ./
drwxrwxrwx 4 root root 4096 abr 25 2012 ../
-rw-rw---- 1 root root 0 abr 25 2012 console.log
-rw-r--r-- 1 root root 25165824 abr 25 2012 disk
-rw-r--r-- 1 root root 6291968 abr 25 2012 disk.local
-rw-rw-r-- 1 root root 4790624 abr 25 2012 kernel
-rw-rw-r-- 1 nobody nogroup 1856 abr 25 2012 libvirt.xml

Regards

----- Mensaje original -----

De: "Sergio Ariel de la Campa Saiz" <sacampa@xxxxxxx>
Para: "Jorge de la Cruz" <jorge.delacruz@xxxxxxxxxxxx>
CC: openstack@xxxxxxxxxxxxxxxxxxx
Enviados: Miércoles, 25 de Abril 2012 18:50:47
Asunto: RE: [Openstack] Nova and external NFS

Hi:

Thanks for your respond .

This is my /etc /export file in the NFS server:

/export 192.168.111.0/24(rw,sync,no_root_squash,fsid =0)

and my /etc /fstab file in my host is :

<ip nfs server>:/ /nfs-directory nfs4 defaults 0 0

Directories /export and /nfs-directory have 777 permissions

Sorry if I bother you ... but It is driving me crazy

Sergio Ariel
de la Campa Saiz
GMV-SES Infraestructura /
GMV-SES Infrastructure

GMV
Isaac Newton, 11
P.T.M. Tres Cantos
E-28760 Madrid
Tel.
+34 91 807 21 00
Fax
+34 91 807 21 99
www.gmv.com

De: Jorge de la Cruz [jorge.delacruz@xxxxxxxxxxxx]
Enviado el: miércoles, 25 de abril de 2012 17:52
Para: Sergio Ariel de la Campa Saiz
CC: openstack@xxxxxxxxxxxxxxxxxxx
Asunto: Re: [Openstack] Nova and external NFS

Hi Sergio,
We have environment with external NFS Server, NetAPP, Nexenta, EMC, etc and we haven´t this problem, sounds like a problem with privileges, i can see the libvirt.xml is nobody:nogroup, it is wrong, must be root:root. Try to change manually, but maybe you have a wrong parameter in a configuration that generate this file with this permissions.

Cheers

PS: Nosotros también estamos en Madrid, podemos conocernos un día si os apetece.

Jorge de la Cruz
Cloud Architect
www.stackops.com | jorge.delacruz@xxxxxxxxxxxx | +34 91 309 48 77 | skype: jorge.delacruz.stackops

De: "Sergio Ariel de la Campa Saiz" <sacampa@xxxxxxx>
Para: openstack@xxxxxxxxxxxxxxxxxxx
Enviados: Miércoles, 25 de Abril 2012 17:18:34
Asunto: [Openstack] Nova and external NFS

Hello:

I have found some examples to configure NFS in Nova. But all of them use one of the hosts as NFS server. In my case, I need to use an external NFS server, which do not have installed OpenStack .
I have been working on it but I have found some problems . For example : when I created a new instance these are the files that were created :

root@opst1 :~# ll /nfs /NOVA-INST -DIR /instances /instance -00000015/
total 29284
drwxrwxr -x 2 nobody nogroup 4096 abr 25 2012 ./
drwxrwxrwx 4 root root 4096 abr 25 2012 ../
-rw-rw ---- 1 root root 0 abr 25 2012 console.log
-rw -r--r-- 1 root root 25165824 abr 25 2012 disk
-rw -r--r-- 1 root root 6291968 abr 25 2012 disk.local
-rw -rw -r-- 1 root root 4790624 abr 25 2012 kernel
-rw -rw -r-- 1 nobody nogroup 1856 abr 25 2012 libvirt.xml

Instead of libvirt-qemu and kvm , root is the owner of the files.

Please .. help me about it

Thanks a lot ...

Sergio Ariel
de la Campa Saiz
GMV-SES Infraestructura /
GMV-SES Infrastructure

GMV
Isaac Newton, 11
P.T.M. Tres Cantos
E-28760 Madrid
Tel.
+34 91 807 21 00
Fax
+34 91 807 21 99
www.gmv.com

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References

Re: Nova and external NFS [SOLVED]
From: Sergio Ariel de la Campa Saiz, 2012-04-26