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Re: Thoughts on roaming laptop setup for Debian Edu

On Fri, Apr 30, 2010 at 04:56:57PM +0200, José L. Redrejo Rodríguez wrote:
El vie, 30-04-2010 a las 14:53 +0200, Jonas Smedegaard escribió:
On Fri, Apr 30, 2010 at 12:19:11PM +0200, José L. Redrejo Rodríguez wrote:

>with hundred of users there are two bottleneck: cpu consumption in >the server when doing the rsync, and bandwith to the server.

I was recently made aware of zsync, putting the burden on the clients: http://zsync.moria.org.uk/

I find this very useful to distribute files to the client (to clone a disk), but I don't see the diferences with rsync when you just want to syncronize a local home dir between the hard disk and the server...

As I understand it, zsync computes binary diffs client-side, rather than server-side as rsync does. Which I suspect would help with the first of the bottlenecks you mention above: CPU consumption on the server.

I have not used zsync myself, however, just looked it up when Sugarlabs folks mentioned it recently, so I might have misunderstood.


 - Jonas

* Jonas Smedegaard - idealist & Internet-arkitekt
* Tlf.: +45 40843136  Website: http://dr.jones.dk/

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