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Re: Nova and external NFS [SOLVED]

To: Jorge de la Cruz <jorge.delacruz@xxxxxxxxxxxx>
From: Sergio Ariel de la Campa Saiz <sacampa@xxxxxxx>
Date: Thu, 26 Apr 2012 12:16:57 +0200
Accept-language: es-ES
Acceptlanguage: es-ES
Cc: "openstack@xxxxxxxxxxxxxxxxxxx" <openstack@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <25850944.1322.1335373607995.JavaMail.DSPC202@ANADAT-HP>
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Thread-topic: [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

________________________________
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
<http://www.stackops.com/>Cloud Architect
www.stackops.com<http://www.stackops.com/> | jorge.delacruz@xxxxxxxxxxxx<https://mail.gmv.com/owa/UrlBlockedError.aspx> | +34 91 309 48 77 | skype:jorge.delacruz.stackops
<http://www.stackops.com/>

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________________________________
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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information, according to our Information Security Management System,
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please notify the sender immediately and delete it.

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puede contener informacion clasificada por su emisor como confidencial
en el marco de su Sistema de Gestion de Seguridad de la
Informacion siendo para uso exclusivo del destinatario, quedando
prohibida su divulgacion copia o distribucion a terceros sin la
autorizacion expresa del remitente. Si Vd. ha recibido este mensaje
erroneamente, se ruega lo notifique al remitente y proceda a su borrado.
Gracias por su colaboracion.

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Follow ups

Re: Nova and external NFS [SOLVED]
From: Jorge de la Cruz, 2012-04-26

References

Re: Nova and external NFS
From: Sergio Ariel de la Campa Saiz, 2012-04-25
Re: Nova and external NFS
From: Jorge de la Cruz, 2012-04-25