I think the option I need is noac. On Fri, 2014-07-11 at 16:10 +0530, Santosh Pradhan wrote: > On 07/11/2014 02:37 PM, Franco Broi wrote: > > On Fri, 2014-07-11 at 14:22 +0530, Santosh Pradhan wrote: > >> On 07/11/2014 06:10 AM, Franco Broi wrote: > >>> Hi > >>> > >>> Is there any way to make Gluster emulate the behaviour of a NFS > >>> filesystem exported with the sync option? By that I mean is it possible > >>> to write a file from one client and guarantee that the data will be > >>> instantly available on close to all other clients? > >> I think FUSE also supports the sync option with mount similar to NFS. > > There's 2 types of NFS sync, server and client but they behave very > > differently. With sync at the client end, NFS just calls fsync on close > > (I think), > > No. If the NFS client is mounted with sync flag i.e. -o sync, then all > the WRITEs will be synchronous i.e. they wont be cached in client side > and they(WRITEs) will hit the server with FILE_SYNC (stable write) flag > which is nothing but FILE I/O with O_SYNC flag. > > > with sync at the server end, all writes are synchronous. > > > > Opening the file with O_SYNC also doesn't give the desired effect > > although you'd think it would. > It should be same as above. > > Thanks, > Santosh > > NFS must have some way of communicating > > the file attribute changes to all the clients immediately the write > > completes. > > > >> Man page snippet for fuse(8): > >> OPTIONS > >> Most of the generic mount options described in mount are > >> supported (ro, rw, suid, nosuid, dev, > >> nodev, exec, noexec, atime, noatime, sync, async, dirsync). > >> Filesystems are mounted with > >> nodev,nosuid by default, which can only be overridden by a > >> privileged user. > >> > >> Thanks, > >> Santosh > >> > >>> Cheers, > >>> > >>> _______________________________________________ > >>> Gluster-users mailing list > >>> Gluster-users@xxxxxxxxxxx > >>> http://supercolony.gluster.org/mailman/listinfo/gluster-users > > > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
