[Yanel-dev] Implementing publishing resp. replication

[Josias Thöny]

Michael Wechner wrote:
> Hi
> 
> Since we have started on the workflow integration, we will quickly get 
> to the question how we implement the actual
> "replication", either through (S)FTP or SCP resp. how we trigger this.
> 
> I think the experience from Lenya taught us, that it is a good thing to 
> separate the hitting of the publish button from the actual replication, 
> e.g. through e queue (for various reasons ;-)
> 
> I think we keep it this way, but one might ask how this shall be 
> implemented. In the case of Lenya one just writes some files
> onto the filesystem within the a configurable directory. Maybe we should 
> implement this a bit more sophisticated with a service interface, 
> whereas the default implementation could still be writing onto the 
> filesystem, but would also allow other implementations.
> 
> WDYT?

+1 for the interface.
We should also be aware of concurrency issues.
The replication has to be synchronized with yanel to avoid situations 
where e.g. yanel is writing a file and the replication is reading this 
file at the same time, because that may lead to corrupted files.

josias

> 
> Cheers
> 
> Michi
>