[Gluster-users] GlusterFS 3.1.1 - local volume mount

Jacob Shucart jacob at gluster.com
Thu Dec 9 22:19:26 UTC 2010


Joshua,

When mounting as a glusterfs, the mount command below is used to establish
the connection to the cluster, but once the connection is established to
the cluster the client system has connections open to all of the servers
and not just the one used to mount, so there is still no single point of
failure.

-Jacob

-----Original Message-----
From: Joshua Baker-LePain [mailto:jlb17 at duke.edu] 
Sent: Thursday, December 09, 2010 2:17 PM
To: Jacob Shucart
Cc: gluster-users
Subject: Re: [Gluster-users] GlusterFS 3.1.1 - local volume mount

On Thu, 9 Dec 2010 at 4:05pm, Jacob Shucart wrote

> With Gluster 3.1.1, you no longer need to do anything with the vol
files.
> If you create a volume like you did below, then you simply mount it
like:
>
> mount -t glusterfs 172.16.16.50:/pool /pool/mount
>
> Gluster automatically gets the volume information when mounting.  This
is
> described at:
>
>
http://www.gluster.com/community/documentation/index.php/Gluster_3.1:_Manu
> ally_Mounting_Volumes

This brings up an issue I've been wondering about.  With the old style 
(vol-file-on-the-clients based) mounting, there was no single point of 
failure when it came to mounting (assuming, of course, that if the first 
server listed in the vol file was down, the gluster client would try the 
next one).  In the syntax quoted above, if that particular server happens 
to be down, the mount will fail.

Is there any way in 3.1.1 to avoid that SPOF?

-- 
Joshua Baker-LePain
QB3 Shared Cluster Sysadmin
UCSF



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