[Xapian-discuss] Xapian across multiple servers

Olly Betts olly at survex.com
Thu Jul 24 06:11:54 BST 2008


On Wed, Jul 23, 2008 at 03:27:08PM +0100, James Aylett wrote:
> On Wed, Jul 23, 2008 at 04:08:12AM +0100, Olly Betts wrote:
> 
> > The NFS caching issue is rather relevant to admins, especially if the
> > cache gets flushed even for the client modifying the database (as that
> > would mean putting the database on NAS isn't good).
> 
> Does anyone have any knowledge of the serious NAS FSs in this respect?
> I believe AFS provides partial updates, and it's possible you can do
> similar things with SAM-FS (does that have a distributed version?).

I don't know about specifics, but indeed this isn't an inherent
limitation of the approach.

> There are probably also tricks you can do on linux with block-level
> replication out of DRBD.

The "SAN" approach to remote storage should be much easier for the OS to
cache.

Cheers,
    Olly



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