Should chattr +i work with cephfs? Using ceph v0.91 and a 3.18 kernel on the CephFS client, I tried this:
# mount | grep ceph 172.16.30.10:/ on /cephfs/test01 type ceph (name=cephfs,key=client.cephfs) # echo 1 > /cephfs/test01/test.1 # ls -l /cephfs/test01/test.1 -rw-r--r-- 1 root root 2 Jan 27 19:09 /cephfs/test01/test.1 # chattr +i /cephfs/test01/test.1 chattr: Inappropriate ioctl for device while reading flags on /cephfs/test01/test.1 I also tried it using the FUSE interface: # ceph-fuse -m 172.16.30.10 /cephfs/fuse01/ ceph-fuse[5326]: starting ceph client 2015-01-27 19:54:59.002563 7f6f8fbcb7c0 -1 init, newargv = 0x2ec2be0 newargc=11 ceph-fuse[5326]: starting fuse # mount | grep ceph ceph-fuse on /cephfs/fuse01 type fuse.ceph-fuse (rw,nosuid,nodev,allow_other,default_permissions) # echo 1 > /cephfs/fuse01/test02.dat # chattr +i /cephfs/fuse01/test02.dat chattr: Invalid argument while reading flags on /cephfs/fuse01/test02.dat Eric
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