Ceph » CephFS

Bug #40927

Updated by Ramana Raja almost 5 years ago

<pre> 
 $ ./bin/ceph fs subvolumegroup create a csi 
 Error EINVAL: Traceback (most recent call last): 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/fs/subvolume.py", line 53, in _mkdir_p 
     self.fs.stat(subpath) 
   File "cephfs.pyx", line 1071, in cephfs.LibCephFS.stat 
 cephfs.ObjectNotFound: [Errno 2] error in stat: b'volumes' 

 During handling of the above exception, another exception occurred: 

 Traceback (most recent call last): 
   File "/home/rraja/git/ceph/src/pybind/mgr/mgr_module.py", line 889, in _handle_command 
     return self.handle_command(inbuf, cmd) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/module.py", line 188, in handle_command 
     return handler(inbuf, cmd) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/module.py", line 211, in _cmd_fs_subvolumegroup_create 
     pool_layout=cmd.get('pool_layout', None), mode=cmd.get('mode', '755')) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/fs/volume.py", line 361, in conn_wrapper 
     result = func(self, fs_h, **kwargs) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/fs/volume.py", line 501, in create_subvolume_group 
     sv.create_group(spec, pool=pool, mode=self.octal_str_to_decimal_int(mode)) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/fs/subvolume.py", line 206, in create_group 
     self._mkdir_p(path, mode) 
   File "/home/rraja/git/ceph/src/pybind/mgr/volumes/fs/subvolume.py", line 55, in _mkdir_p 
     self.fs.mkdir(subpath, mode) 
   File "cephfs.pyx", line 765, in cephfs.LibCephFS.mkdir 
 cephfs.Error: (13, "error in mkdir 'b'volumes'': error code 13") 

 </pre> 

 Solution: Inside the ceph-mgr's volumes module, have the filesystem client have uid/gid as 0/0 by using `conf_set` interface, before mounting the ceph filesystem and creating directories.

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