Gluster users - Sep 2013 - Cluster with NFS

Hello,

An idiot question ... I would like to use NFS on my client instead of the Native
Gluster Client.

If i do that, i can not able to use the cluster functionnality ?

I think that the date will be duplicated between the fileserver 1 and the
fileserver2, but on my client i can specify only one fileserver ...

I'm wrong ?
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On 27 Sep 2013, at 15:49, DUBOURG Kevin <kevin at dubourg.info> wrote:
> An idiot question ... I would like to use NFS on my client instead of the
Native Gluster Client.
> 
> If i do that, i can not able to use the cluster functionnality ?
> 
> I think that the date will be duplicated between the fileserver 1 and the
fileserver2, but on my client i can specify only one fileserver ...
> 
> I'm wrong ?
If you use NFS, you can indeed only connect to one server, but it doesn't
matter which one - the client has nothing to do with replicating of data between
the servers.

Because NFS doesn't know about gluster, you lose automatic failover when
doing this. Roughly speaking these are your tradeoffs for clients:

gluster client:

good:
auto failover

bad:
complex client setup
poor performance

NFS client:
good:
simple client setup
better performance

bad:
No failover.

Marcus
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Thanks Marcus.

I understand ... The Native Gluster client have very poor performance ...

If i use NFS i could mount on an IPFailover. If one of the fileserver is down,
the IPfailover switch one the second Fileserver (not managed by Gluster Client
but the only the network).

Next test, i will install debian-zfs package and try to use this filesystem with
GlusterFS.



-----Message initial-----
De: Marcus Bointon?<marcus at synchromedia.co.uk>
Envoy?: vendredi 27 septembre 2013 16:06
?: Gluster-users at gluster.org List <gluster-users at gluster.org>
Sujet: Re: [Gluster-users] Cluster with NFS

On 27 Sep 2013, at 15:49, DUBOURG Kevin <kevin at dubourg.info
<mailto:kevin at dubourg.info> > wrote:

An idiot question ... I would like to use NFS on my client instead of the Native
Gluster Client.

If i do that, i can not able to use the cluster functionnality ?

I think that the date will be duplicated between the fileserver 1 and the
fileserver2, but on my client i can specify only one fileserver ...

I'm wrong ?

If you use NFS, you can indeed only connect to one server, but it doesn't
matter which one - the client has nothing to do with replicating of data between
the servers.

Because NFS doesn't know about gluster, you lose automatic failover when
doing this. Roughly speaking these are your tradeoffs for clients:

gluster client:

good:
auto failover

bad:
complex client setup
poor performance

NFS client:
good:
simple client setup
better performance

bad:
No failover.

Marcus

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