You can check the remaining active daemons if they have pinned subtrees:
ceph daemon mds.daemon-a get subtrees | jq '.[] | [.dir.path, .auth_first]'
[
"/dir1/subdir1",
6
]
[
"",
0
]
[
"~mds6",
6
]
If there's no pinning enabled it should probably look like this:
[
"",
0
]
[
"~mds0",
0
]
[
"/dir2",
0
]
If you mount the cephfs root directory you can check the
subdirectories with getfattr:
host:~ # getfattr -n ceph.dir.pin /mnt/dir1/subdir1
getfattr: Removing leading '/' from absolute path names
# file: mnt/dir1/subdir1
ceph.dir.pin="1"
Does that help?
Zitat von Mark Schouten <mark@xxxxxxxx>:
On Tue, May 11, 2021 at 08:47:26AM +0000, Eugen Block wrote:
I don't have a Luminous cluster at hand right now but setting max_mds to 1
already should take care and stop MDS services. Do you have have pinning
enabled (subdirectories pinned to a specific MDS)?
Not on this cluster, AFAIK. How can I check that?
--
Mark Schouten | Tuxis B.V.
KvK: 74698818 | http://www.tuxis.nl/
T: +31 318 200208 | info@xxxxxxxx
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