[Gllug] File synchronisation

Bruce Richardson itsbruce at uklinux.net
Thu May 9 14:57:20 UTC 2002


On 09/05/02, 15:08:50, pauln at truemesh.com wrote regarding [Gllug] File 
synchronisation:


> I'm looking to synchronise a headless cluster of peers, where each can
> write and read.

> I don't want to use a shared filesystem (either real or network).

Unless you can guarantee that no two machines will write to the same file 
between syncs, you are heading for a horrible mess.  As long as you can 
guarantee that each file only creates/writes to unique filenames, an 
rsync-based solution is possible, if you can live with out-of-date 
information between syncs.  Even then, creating a system of 
synchronisation across multiple boxes that doesn't either silt up with 
obsolete files or erroneously delete live ones is extremely ticklish.

You might find that your determination to avoid a filesystem causes more 
problems than it solves.  In which case you might benefit from looking at 
WebDAV, a virtual filesystem that runs over http. 

-- 

Bruce

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