[Gluster-users] Question architecture of GlusterFS

[Arend-Jan Wijtzes]

On Wed, Oct 22, 2008 at 08:49:27AM +0530, Basavanagowda Kanur wrote:
> On Wed, Oct 22, 2008 at 3:49 AM, Mario Bonilla <hatrickmario at hotmail.com>wrote:
> 
> > The architecture of GlusterFS configured as a RAID-1, using 2 nodes, the
> > writing is done in a node and is replicated in the other node,
> > question: the reading is done in parallel, since the two nodes where the
> > information is replicated?
> 
> 
> no.. reading is not done in parallel..
> read is done from first available node.
> if read from first node fails,
>    then read is done through next available node.

Is this behaviour required for correct operation? Does this mean that all
clients are always reading from the same availble first node?
Wouldn't the load be better distributed if you take a random or 
'round robin' node to read from (which would seem trivial to implement)?



-- 
Arend-Jan Wijtzes -- Wiseguys -- www.wise-guys.nl