On 07/26/2012 11:47 PM, Harry Mangalam wrote: ... > > So why doesn't the gluster native client do client-side caching like > NFS? It looks like it's explicitly refusing to be cached by the usual > (and usually excellent) Linux mechanisms. > What's the reason for declining this OS advantage on the client side > while providing such a technically sweet solution on the server side? > I'm at a loss to explain this behavior to our technical group. > My understanding is this is a limitation of fuse moreso than glusterfs. fuse currently fires off each write() it receives to the client fs (gluster). FWIW, there is a fuse enhancement under development that you can check out over on fuse-devel: http://article.gmane.org/gmane.linux.file-systems/65661 I can't say whether that would solve your performance problems, but you could certainly give it a try. I believe the intent is to sink writes into the page cache (similar to NFS or a local filesystem) and send out larger requests down to the fuse filesystem when writeback kicks in. Brian
