Re: [Gluster-devel] Async replication

[Gordan Bobic]

anthony garnier wrote:
> Hi,
> I'd like to know if gluster developpers intend to develop a module 
> option for Asynchronous  replication ?
> Let me know if you got some informations.
I think you may be trying to use the wrong tool for the job here. If you 
 really want asynchronous replication (no concurrent access 
arbitration, locking, and other things that wouldn't work 
asynchronously), then perhaps lsyncd (http://code.google.com/p/lsyncd/) 
would be a better tool for the job (make sure you use the svn trunk 
version, it has a number of important bug fixes in it).
GlusterFS is a great _cluster_ file system with rather unique benefits, 
but if you really want to play _that_ fast and loose, and throw away the 
consistency-ensuring constraints (and since you want async replication, 
it sounds like you do), you can cut a few more corners to gain a lot of 
extra performance. Just make sure you are aware of the limitations and 
consequences of this - concurrent file writes _will_ lead to race 
conditions which will trash your data.
Gordan