On Fri, May 25, 2018 at 1:10 PM, Oliver Freyermuth <freyermuth@xxxxxxxxxxxxxxxxxx> wrote: > Dear Cephalopodians, > > I was wondering why a simple "mv" is taking extraordinarily long on CephFS and must note that, > at least with the fuse-client (12.2.5) and when moving a file from one directory to another, > the file appears to be copied first (byte by byte, traffic going through the client?) before the initial file is deleted. > > Is this true, or am I missing something? A mv should not involve copying a file through the client -- it's implemented in the MDS as a rename from one location to another. What's the observation that's making it seem like the data is going through the client? John > > For large files, this might be rather time consuming, > and we should certainly advise all our users to not move files around needlessly if this is the case. > > Cheers, > Oliver > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |