[ubuntu-uk] Ubuntu One broken on 10.04?

James Tait james.tait at wyrddreams.org
Tue Oct 11 16:43:13 UTC 2011

On 11/10/11 14:27, Simon Greenwood wrote:
> As far as I remember, synching isn't simultaneous and there is a polling
> interval, which I think is ten minutes. I'm sure James will be able to
> confirm that.

I actually work on the server side, specifically the web interface, and 
know embarrassingly little about the desktop client.

I do know at a fairly high level, though, that the desktop client 
maintains a connection to the Ubuntu One servers and monitors 
synchronised directories for changes.

Those changes are then synchronised on the server (hence they appear 
instantaneously in the web interface) and a signal is sent to all 
connected clients, causing them to download the updated files.  You can 
see all this in your syncdaemon log in $HOME/.cache/ubuntuone/log or in 
the syncdaemon source code, if you're so inclined.

There are lots of reasons why the updates might not be happening as 
quickly as expected, including network flakiness, network traffic or 
system load at either end or in between, server updates, service outages....

As a test, I created a file on my Natty desktop in a folder I have 
shared with my wife and it appeared on her desktop within a few minutes 
of resuming from suspend.

James Tait, BSc                        |    xmpp:jayteeuk at wyrddreams.org
Programmer and Free Software advocate  |        Tel: +44 (0)870 490 2407

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