On Wed, Feb 13, 2013 at 08:31:31AM -0500, J. Bruce Fields wrote: > They're assuming they can take the high bits of the cookie for their own > use. > > (In more detail: they're spreading a single directory across multiple > nodes, and encoding a node ID into the cookie they return, so they can > tell which node the cookie came from when they get it back.) > > That works if you assume the cookie is an "offset" bounded above by some > measure of the directory size, hence unlikely to ever use the high > bits.... Right, but why wouldn't a nfs export option solave the problem for gluster? Basically, it would be nice if we did not have to degrade locally running userspace applications by globally turning off 64-bit telldir cookies just because there are some broken cluster file systems and nfsv3 clients out there. And if we are only turning off 64-bit cookies for NFS, wouldn't it make sense to make this be a NFS export option, as opposed to a mount option? Regards, - Ted
