[Gluster-users] Replicate over WAN?

[Diego Zuccato]

On 05/05/2010 20:18, Vikas Gorur wrote:

> 2) "readdir" (ls) is always sent to the first subvolume. This is
> necessary to ensure consistent inode numbers.
Uhm... Couldn't the same result be achieved storing a "virtual inode 
number" in an attribute? So that it gets replicated with the rest of the 
data and it makes possible to have the first subvolume always local...

I understand tht it could lead to possible problems (like "how do I 
generate an inode number if the master node is missing"), but it could 
open to the "replicate writes, local reads" that many people are 
requesting...

The scenario to think about is a firm w/ a remote office connected via a 
VPN -- if you can cut nearly all the read traffic from the VPN, then you 
see a great boost in performance.

Or maybe I missed something...

-- 
Diego Zuccato
Servizi Informatici
Dip. di Astronomia - Università di Bologna
Via Ranzani, 1 - 40126 Bologna - Italy
tel.: +39 051 20 95786
mail: diego.zuccato at unibo.it


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