Ceph » ceph-volume

trying to deploy filestore OSDs with 'ceph-volume lvm batch' ends up like following when trying to override what there is in ceph.conf for the journal size (not sure whether this is valid for other params):

seen in : ceph version 14.2.2 (4f8fa0a0024755aae7d95567c63f11d6862d55be) nautilus (stable)

-bash-4.2# cat /etc/ceph/ceph.conf
 # Please do not change this file directly since it is managed by Ansible and will be overwritten
  [global]
  cluster network = 192.168.40.0/24
  fsid = b295b2c9-241d-4399-a3b2-3dc00b5235f3
  mon host = [v2:192.168.39.10:3300,v1:192.168.39.10:6789],[v2:192.168.39.11:3300,v1:192.168.39.11:6789],[v2:192.168.39.12:3300,v1:192.168.39.12:6789]
  osd_pool_default_size = 1
  public network = 192.168.39.0/24
  [osd]
  osd journal size = 100
  osd mkfs options xfs = -f -i size=2048
  osd mkfs type = xfs
  osd mount options xfs = noatime,largeio,inode64,swalloc

-bash-4.2# docker run --rm -ti --ulimit nofile=1024:4096 --privileged=true --net=host --pid=host --ipc=host -e CEPH_VOLUME_DEBUG=1 -v /dev:/dev -v /var/lib/ceph:/var/lib/ceph -v /etc/ceph:/etc/ceph -v /var/run:/var/run --entrypoint=ceph-volume docker.io/guits/ceph:ceph_volume_legady_devices-nautilus-centos-7-x86_64 lvm batch --journal-size 4096 --no-systemd --filestore /dev/sda /dev/sdb --journal-devices /dev/sdc

Total OSDs: 2

Solid State VG:
   Targets:   journal                   Total size: 49.00 GB                 
   Total LVs: 2                         Size per LV: 4.00 GB                  
   Devices:   /dev/sdc

Type            Path                                                    LV Size         % of device
 ----------------------------------------------------------------------------------------------------
   [data]          /dev/sda                                                49.00 GB        100%
   [journal]       vg: lv/vg                                               4.00 GB         8%
 ----------------------------------------------------------------------------------------------------
   [data]          /dev/sdb                                                49.00 GB        100%
   [journal]       vg: lv/vg                                               4.00 GB         8%
 --> The above OSDs would be created if the operation continues
 --> do you want to proceed? (yes/no) yes
 Running command: /usr/sbin/vgcreate s 1G --force --yes ceph-journals-a128f13e-a2fa-44a2-8b39-b766bd7ca1f5 /dev/sdc
  stdout: Physical volume "/dev/sdc" successfully created.
  stdout: Volume group "ceph-journals-a128f13e-a2fa-44a2-8b39-b766bd7ca1f5" successfully created
 -> Refusing to continue with configured size for journal
 Traceback (most recent call last):
   File "/usr/sbin/ceph-volume", line 9, in <module>
     load_entry_point('ceph-volume==1.0.0', 'console_scripts', 'ceph-volume')()
   File "/usr/lib/python2.7/site-packages/ceph_volume/main.py", line 38, in init
     self.main(self.argv)
   File "/usr/lib/python2.7/site-packages/ceph_volume/decorators.py", line 59, in newfunc
     return f(*a, **kw)
   File "/usr/lib/python2.7/site-packages/ceph_volume/main.py", line 148, in main
     terminal.dispatch(self.mapper, subcommand_args)
   File "/usr/lib/python2.7/site-packages/ceph_volume/terminal.py", line 206, in dispatch
     instance.main()
   File "/usr/lib/python2.7/site-packages/ceph_volume/devices/lvm/main.py", line 40, in main
     terminal.dispatch(self.mapper, self.argv)
   File "/usr/lib/python2.7/site-packages/ceph_volume/terminal.py", line 206, in dispatch
     instance.main()
   File "/usr/lib/python2.7/site-packages/ceph_volume/decorators.py", line 16, in is_root
     return func(*a, **kw)
   File "/usr/lib/python2.7/site-packages/ceph_volume/devices/lvm/batch.py", line 325, in main
     self.execute()
   File "/usr/lib/python2.7/site-packages/ceph_volume/devices/lvm/batch.py", line 288, in execute
     self.strategy.execute()
   File "/usr/lib/python2.7/site-packages/ceph_volume/devices/lvm/strategies/filestore.py", line 355, in execute
     journal_size = prepare.get_journal_size(lv_format=True)
   File "/usr/lib/python2.7/site-packages/ceph_volume/util/prepare.py", line 67, in get_journal_size
     raise RuntimeError('journal sizes must be larger than 2GB, detected: %s' % journal_size)
 RuntimeError: journal sizes must be larger than 2GB, detected: 100.00 MB
 -bash-4.2#

looks like the "--journal-size 4096" passed to the CLI doesn't override as expected the value present in ceph.conf (osd journal size = 100)

by the way, it should output a nice error message instead of throwing a python trace.