On Thu, Sep 14, 2017 at 10:15 PM, Patrick Donnelly <pdonnell@xxxxxxxxxx> wrote: > On Thu, Sep 14, 2017 at 2:00 PM, Two Spirit <twospirit6905@xxxxxxxxx> wrote: >> I was trying to track down a file that keeps showing up as a directory in ceph. >> >> The user literally has a files called ".snap", and it tried to copy >> into cephfs, and it kept complaining and kept reappearing as a >> directory. delete the directory and recopy the .snap file. I found out >> .snap is a special hidden ceph directory. the user is actually on a >> project called "SNAP". >> >> Is there anything that can be done about this? My priority is to the >> user being able to name their files anything except certain well >> understood special characters. There is already a little contention >> between unix and windows filesystems eg ':', but nobody will know that >> their underlying file system will be changed to ceph or if used for >> backups systems and that the backup system can't properly copy their >> file due to the name..nobody is expecting this limitation. >> >> I, not know what the .snap was for, force deleted it, not realizing I >> was removing possible user snapshots. >> >> Feels wrong to tell a user they can't name their file .snap. > > Change the name using "client_snap_dir" in > docs.ceph.com/docs/master/cephfs/client-config-ref/ I've sometimes wondered if we should have a different default, perhaps one with ceph in the name like ".ceph_snapshot" or something? Anyone with a home directory workload is liable to see the ".snap" issue because you get files with that name in eclipse projects. John >> Just food for thought. Is this moveable out of band. I've used >> snapshot software before -- even whole drive snapshots, and the >> snapshots for the most part were hidden or explicitly visible from >> mount. > > It's not simple to expose advanced non-POSIX file system interfaces > outside the file system without losing convenience/usability. > >> In unix, super fast snapshots can be made 'cp -lrp' > > That's not a snapshot. It's a terrible copy. > > -- > Patrick Donnelly > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
