Tried below too but nothing works, any suggestion?
# mount -t ceph 10.101.1.246,10.101.1.247,10.101.1.248:/ /mnt/cephfs -o
name=admin,fs=van2.dev,noatime,_netdev,ms_mode=prefer-crc
mount error: no mds (Metadata Server) is up. The cluster might be laggy, or you
may not be authorized
# mount -t ceph :/ /cephfs/ -o noatime,ms_mode=prefer-crc,_netdev,fs=van2-dev
mount error: no mds (Metadata Server) is up. The cluster might be laggy, or you
may not be authorized
Regards
Dev
> On Jul 15, 2025, at 2:17 PM, Devender Singh <deven...@netskrt.io> wrote:
>
> Hello all
>
> I have cephfs working fine with running ads but still not able to mount,
> getting error mount error: no mds (Metadata Server) is up
>
> Below are details
>
>
> # ceph osd dump | grep min_compat_client
> require_min_compat_client reef
> min_compat_client reef
>
> # ceph balancer status
> {
> "active": true,
> "last_optimize_duration": "0:00:00.002882",
> "last_optimize_started": "Tue Jul 15 21:16:41 2025",
> "mode": "upmap-read",
> "no_optimization_needed": true,
> "optimize_result": "Unable to find further optimization, or pool(s)
> pg_num is decreasing, or distribution is already perfect",
> "plans": []
> }
>
> root@van2-host06n:~# dpkg -l ceph-common
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> ||/ Name Version Architecture Description
> +++-==============-=============-============-==================================================================
> ii ceph-common 19.2.2-1jammy amd64 common utilities to mount and
> interact with a ceph storage cluster
>
> root@van2-host06n:~# ceph fs status
> van2.dev - 0 clients
> ========
> RANK STATE MDS ACTIVITY DNS INOS
> DIRS CAPS
> 0 active van2.dev.van2-host06n.wqttsi Reqs: 0 /s 10 13 12
> 0
> 1 active van2.dev.van2-host07n.fngvlt Reqs: 0 /s 10 13 11
> 0
> POOL TYPE USED AVAIL
> cephfs.van2.dev.meta metadata 230k 53.0T
> cephfs.van2.dev.data data 0 53.0T
> STANDBY MDS
> van2-dev.van2-host07n.jnacmh
> van2-dev.van2-host06n.wpzshe
> van2-dev.van2-host08n.slrfej
> MDS version: ceph version 19.2.2 (0eceb0defba60152a8182f7bd87d164b639885b8)
> squid (stable)
>
>
> SYstemd file.
> ===========
>
> # cat cephfs.mount
> #
> # this mounts on /cephfs
>
> [Unit]
> Description=mount /cephfs
> After=network-online.target
> Requires=network-online.target
>
> [Mount]
> Where=/cephfs
> What=10.101.1.246:6789,10.101.1.247:6789,10.101.1.248:6789:/
> Type=ceph
> Options=fs=van2.dev,name=admin,noatime,_netdev,x-systemd.automount
>
> [Install]
> WantedBy=multi-user.target
>
>
> root@van2-host06n:~# journalctl -u cephfs.mount
> Jul 15 19:31:10 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:32:12 van2-host06n.van2.example.com mount[1809096]: mount error: no
> mds (Metadata Server) is up. The clu>
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=>
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:34:59 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:35:59 van2-host06n.van2.example.com mount[1810584]: mount error: no
> mds (Metadata Server) is up. The clu>
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=>
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:36:16 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:37:17 van2-host06n.van2.example.com mount[1811498]: mount error: no
> mds (Metadata Server) is up. The clu>
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=>
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:49:38 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:50:40 van2-host06n.van2.example.com mount[1817486]: mount error: no
> mds (Metadata Server) is up. The clu>
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=>
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:51:58 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=killed, status=>
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'signal'.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Unit
> process 1817555 (mount.ceph) remains >
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Unmounted mount
> /cephfs.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Found
> left-over process 1817555 (mount.cep>
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: This usually
> indicates unclean termination of a previous>
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:59 van2-host06n.van2.example.com mount[1817555]: mount error: no
> mds (Metadata Server) is up. The clu>
> lines 1-29...skipping...
> Jul 15 19:31:10 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:32:12 van2-host06n.van2.example.com mount[1809096]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:34:59 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:35:59 van2-host06n.van2.example.com mount[1810584]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:36:16 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:37:17 van2-host06n.van2.example.com mount[1811498]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:49:38 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:50:40 van2-host06n.van2.example.com mount[1817486]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:51:58 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=killed, status=15/TERM
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'signal'.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Unit
> process 1817555 (mount.ceph) remains running after unit stopped.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Unmounted mount
> /cephfs.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Found
> left-over process 1817555 (mount.ceph) in control group while starting uni>
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: This usually
> indicates unclean termination of a previous run, or service implementation
> defici>
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:59 van2-host06n.van2.example.com mount[1817555]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:53:26 van2-host06n.van2.example.com mount[1817572]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:56:29 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:57:29 van2-host06n.van2.example.com mount[1817655]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be>
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> lines 1-38...skipping...
> Jul 15 19:31:10 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:32:12 van2-host06n.van2.example.com mount[1809096]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:32:12 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:34:59 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:35:59 van2-host06n.van2.example.com mount[1810584]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:35:59 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:36:16 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:37:17 van2-host06n.van2.example.com mount[1811498]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:37:17 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:49:38 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:50:40 van2-host06n.van2.example.com mount[1817486]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:50:40 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:51:58 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=killed, status=15/TERM
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'signal'.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Unit
> process 1817555 (mount.ceph) remains running after unit stopped.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Unmounted mount
> /cephfs.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Found
> left-over process 1817555 (mount.ceph) in control group while starting unit.
> Ignoring.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: This usually
> indicates unclean termination of a previous run, or service implementation
> deficiencies.
> Jul 15 19:52:24 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:52:59 van2-host06n.van2.example.com mount[1817555]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:53:26 van2-host06n.van2.example.com mount[1817572]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:53:26 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:56:29 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:57:29 van2-host06n.van2.example.com mount[1817655]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:57:29 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 19:58:50 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 19:59:51 van2-host06n.van2.example.com mount[1818287]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> Jul 15 19:59:51 van2-host06n.van2.example.com systemd[1]: cephfs.mount: Mount
> process exited, code=exited, status=32/n/a
> Jul 15 19:59:51 van2-host06n.van2.example.com systemd[1]: cephfs.mount:
> Failed with result 'exit-code'.
> Jul 15 19:59:51 van2-host06n.van2.example.com systemd[1]: Failed to mount
> mount /cephfs.
> Jul 15 20:05:43 van2-host06n.van2.example.com systemd[1]: Mounting mount
> /cephfs...
> Jul 15 20:06:44 van2-host06n.van2.example.com mount[1818912]: mount error: no
> mds (Metadata Server) is up. The cluster might be laggy, or you may not be
> authorized
> lines 1-45
>
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