SLUG Mailing List Archives
Re: [SLUG] today's scary thought
- To: slug@xxxxxxxxxxx
- Subject: Re: [SLUG] today's scary thought
- From: Daniel Pittman <daniel@xxxxxxxxxxxx>
- Date: Thu, 15 Jul 2010 16:14:38 +1000
- Reply-to: slug@xxxxxxxxxxx
- User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)
Jake Anderson <yahoo@xxxxxxxxxxxxxxx> writes:
> On 15/07/10 14:10, Matthew Hannigan wrote:
>> On Wed, Jul 14, 2010 at 04:06:17PM +1000, Peter Chubb wrote:
>>> You could do this with inotify, with `just a few' scripts around it.
>> Related: http://code.google.com/p/lsyncd/ drives rsyncing with inotify.
> Actually that looks like a fairly handy tool, I have been trying to work out
> the best way of keeping files in two offices in sync and drbd seemed like
Keep in mind that using rsync like that has absolutely *zero* conflict
resolution support, so you are inviting the data-loss fairy to visit when
there are concurrent modifications.
DRBD, meanwhile, is useless without a cluster file-system on top of it, since
you otherwise can't mount the data at both sites at the same time.
Sadly, I can't right now advise a better solution than these, however, since
it is the main problem I face in trying to bridge two data-centers and provide
coherent and sensible file access.
The best I can offer, right now, is xtreemfs which will give you fair
performance but no local caching, so no disconnected operation.
✣ Daniel Pittman ✉ daniel@xxxxxxxxxxxx ☎ +61 401 155 707
♽ made with 100 percent post-consumer electrons