On 09/01/2015 12:39 AM, Davy Croonen wrote:
Hi
We are currently running a gluster cluster with 2 nodes in replica 2. We mount
the distributed volume with the gluster fuse client and a volumebackup file for
failover.
The volumebackup file looks as follows:
volume node1
type protocol/client
option transport-type tcp
option remote-host 10.0.0.x
option remote-subvolume /mnt/volume/brick1
end-volume
volume node2
type protocol/client
option transport-type tcp
option remote-host 10.0.0.y
option remote-subvolume /mnt/volume/brick1
end-volume
volume replicate
type cluster/replicate
subvolumes node1 node2
end-volume
We now want the expand our volume with 2 extra nodes also in replica 2. The
steps to achieve this are clearly explained in the manual, but what with the
volumebackup file? Do we need to change this file and add the 2 extra nodes
also or will the cluster manage this internally?
If we have to add the 2 extra nodes to the volumebackup file, do we then have
to do this as follows?
volume node1
type protocol/client
option transport-type tcp
option remote-host 10.0.0.x
option remote-subvolume /mnt/volume/brick1
end-volume
volume node2
type protocol/client
option transport-type tcp
option remote-host 10.0.0.y
option remote-subvolume /mnt/volume/brick1
end-volume
volume node3
type protocol/client
option transport-type tcp
option remote-host 10.0.0.z
option remote-subvolume /mnt/volume/brick1
end-volume
volume node4
type protocol/client
option transport-type tcp
option remote-host 10.0.0.a
option remote-subvolume /mnt/volume/brick1
end-volume
volume replicate
type cluster/replicate
subvolumes node1 node2 node3 node4
end-volume
Kind regards
Davy
_
There's no need to write vol files since 3.0. If you're doing that, as
you state "for failover", which I assume means you're using that in case
the mount server is unavailable, that's unnecessary. Either use rrdns
and specify multiple A records for a psuedo-hostname that points to each
server, or use the backup-volfile-servers mount option.
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