I am unable to chown file over glusterfs mount. Is it my mistake, feature or bug ? I have simple scenario: laptop-hp glusterfs client [1] using kernel 2.6.22.12 fuse. beauty glusterfs server [2] for few other hosts. UIDs and GIDs in sync (at least ones used in operation) glusterfs client: [matkor@laptop-hp uo]$ id uid=500(matkor) gid=1000(users) groups=7(lp),10(wheel),16(ttyS),19(floppy),21 (slocate),23(audio),24(video),27(cdwrite),33(mldonkey),51(http),78(usb),124 (logs),1000(users),1001(abadmwww) [matkor@laptop-hp wuo]$ ls -la total 8 drwxrwxr-x 2 matkor http 4096 Jan 21 18:20 . drwxrwxr-x 9 root abadmwww 4096 Jan 21 15:53 .. [matkor@laptop-hp wuo]$ touch test [matkor@laptop-hp wuo]$ chown :http test chown: changing group of `test': Operation not permitted glusterfs server (after turning off daemon - same dir): [matkor@beauty wuo]$ id uid=500(matkor) gid=1000(users) groups=10(wheel),51(http),124(logs),1000 (users),1001(abadmwww),1002(abitemsd),1003(abdsyncd) [matkor@beauty wuo]$ ls -la total 8 drwxrwxr-x 2 matkor http 4096 Jan 21 18:21 . drwxrwxr-x 9 root abadmwww 4096 Jan 21 15:53 .. -rw------- 1 matkor users 0 Jan 21 18:21 test [matkor@beauty wuo]$ chown :http test [matkor@beauty wuo]$ ls -la total 8 drwxrwxr-x 2 matkor http 4096 Jan 21 18:21 . drwxrwxr-x 9 root abadmwww 4096 Jan 21 15:53 .. -rw------- 1 matkor http 0 Jan 21 18:21 test [1]: volume beauty_abbon_static_root_pl_studiotg1_x type protocol/client option transport-type tcp/client # for TCP/IP transport option remote-host 192.168.3.1 # IP address of the remote brick option remote-subvolume abbon_static_root_pl_studiotg1_x end-volume [2] volume abbon_static_root_pl_studiotg1_x type storage/posix # POSIX FS translator option directory /home/services/lighttpd/html/abbon_static_root.pl.studiotg1/x end-volume volume server type protocol/server option transport-type tcp/server # For TCP/IP transport option bind-address 192.168.3.1 option client-volume-filename /etc/glusterfs/glusterfs-client.vol subvolumes abbon_static_root_pl_studiotg1_x option auth.ip.abbon_static_root_pl_studiotg1_x.allow 192.168.3.* end-volume Regards, -- Mateusz Korniak