On Wed, Aug 31, 2016 at 11:23 AM, Wido den Hollander <wido@xxxxxxxx> wrote: > Hi, > > I have a CephFS filesystem which is re-exported through NFS Ganesha (v2.3.0) with Ceph 10.2.2 > > The export works fine, but when calling a chgrp on a file the UID is set to root. > > Example list of commands: > > $ chown www-data:www-data myfile > > That works, file is now owned by www-data/www-data > > $ chgrp nogroup myfile Does the nogroup group have GID -1 by any chance? There is a bug in the userspace client where it doesn't handle negative gid/uids properly at all, which Greg is working on at the moment (http://tracker.ceph.com/issues/16367) John > That files, the UID is now set to 0 (root) and the group hasn't changed. > > I tracked this down to being a Ganesha problem in combination with CephFS. Running these commands on either a kernel mounted CephFS or via FUSE I don't see this problem. > > The Ganesha configuration: > > NFSv4 > { > IdmapConf = /etc/idmapd.conf; > } > > EXPORT > { > Export_ID = 1; > Path = "/"; > Pseudo = "/"; > Access_Type = RW; > Protocols = "4"; > Squash = no_root_squash; > Transports = TCP; > SecType = sys; > > FSAL { > Name = CEPH; > } > } > > Has anybody seen this before? > > Wido > _______________________________________________ > 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
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