I believe FSCache must first be implemented in FUSE before any userspace filesystem (like GlusterFS) can make use of it? Avati On Wed, Dec 5, 2012 at 1:29 AM, ?? <wuwei.tsh at gmail.com> wrote: > ** > Now I'm sure that Gluster FS native client don't support FSCache. There > are no codes about FSCache in the source code of Gluster FS. > the command "mount -t glusterfs server1:/test-volume /mnt/glusterfs -o > fsc" will be executed by /sbin/mount.glusterfs, and the "-o fsc" option > will be ignored silently. > > Thanks for everybody. > > ------------------------------ > Wei Wu > > *From:* Suresh Jayaraman <sjayaraman at suse.com> > *Date:* 2012-12-05 15:06 > *To:* ?? <wuwei.tsh at gmail.com> > *CC:* Ric Wheeler <ricwheeler at gmail.com>; gluster-users<gluster-users at gluster.org>; > linux-cachefs <linux-cachefs at redhat.com>; gluster-devel<gluster-devel at nongnu.org> > *Subject:* Re: [Linux-cachefs] [Gluster-devel] Can I use > FSCache/Cachefiles with Gluster Native Client mode? > On 12/03/2012 05:59 PM, Ric Wheeler wrote: > > On 12/02/2012 10:29 PM, ?? wrote: > >> Hey, > >> > >> I Download the GlusterFS 3.2.7 Release and it works well. And I want > >> to improve the reading performance with FSCache/Cachefiles model. > >> I use the command line: > >> mount -t glusterfs server1:/test-volume /mnt/glusterfs -o fsc > >> and no error reported. But the local cache function of FSCache is not > > Does Glusterfs support fscache? File systems typically have to be > modified to include support for fscache (see fs/cifs/fscache*.[c,h] or > fs/nfs/fscache*.[c,h] in the kernel source for example). IOW, they have > to be fscache aware to be able to use the persistent disk caching. > > Have you checked if the option 'fsc' is being silently ignored? Try > mounting with '-vvv' to see whether it reveals more. > > What do you mean by "local cache function of FSCache is not active"? Did > you mean that the files are not getting cached? or File are not being > fetched from the cache when re-read? > > If it is already supported, are you running the cachefilesd user-space > daemon? > > FS-Cache by default uses /var/cache/fscache dir for caching. You could > check whether the cached files are being seen there. > > Also, /proc/fs/fscache/stats might reveal more details about pages > marked for caching, retrieved successfully from cache or cache returned > -ENODATA etc. > > >> active. How can I use the local cache function of FSCache with Gluster > >> Native Client mount mode? > >> > > Adding in the fscache list to see if anyone there has experimented with > > this, > > > > > -- > Suresh Jayaraman > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://supercolony.gluster.org/mailman/listinfo/gluster-users > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20121205/2a54dc6b/attachment.html>
