Hi All,
my cluster is Jewel Ceph.It is often that something wrong goes up when
mount cephfs, but no error message can be found on logs
the following are some infos:
[root@ceph2 ~]# mount /mnt/cephfs_stor/
mount error 5 = Input/output error
[root@ceph2 ~]# cat /etc/fstab | grep 6789
ceph2:6789:/ /mnt/cephfs_stor ceph
name=admin,secretfile=/etc/ceph/admin_keyring,_netdev,noatime 0 2
[root@ceph2 ceph]# dmesg | tail
[8147859.732786] libceph: client1504169 fsid
3fcc77ef-9fda-4f83-8b9f-efc9c769c857
[8147859.774117] libceph: mon0 172.17.0.172:6789 session established
[8148008.420636] libceph: client1529478 fsid
3fcc77ef-9fda-4f83-8b9f-efc9c769c857
[8148008.422172] libceph: mon0 172.17.0.170:6789 session established
[8148225.540589] SELinux: initialized (dev tmpfs, type tmpfs), uses
transition SIDs
[8148241.014225] SELinux: initialized (dev tmpfs, type tmpfs), uses
transition SIDs
[8148298.445636] libceph: client1504172 fsid
3fcc77ef-9fda-4f83-8b9f-efc9c769c857
[8148298.486282] libceph: mon0 172.17.0.172:6789 session established
[8149773.194866] libceph: client1504175 fsid
3fcc77ef-9fda-4f83-8b9f-efc9c769c857
[8149773.196711] libceph: mon0 172.17.0.172:6789 session established
and the /var/log/messages:
May 19 15:23:04 ceph2 kernel: libceph: client1504175 fsid
3fcc77ef-9fda-4f83-8b9f-efc9c769c857
May 19 15:23:04 ceph2 kernel: libceph: mon0 172.17.0.172:6789 session
established
my cluster status:
[root@ceph2 ceph]# ceph health
HEALTH_OK
[root@ceph2 ceph]# ceph mds stat
e584: 3/3/3 up
{4:0=ceph2-mds0=up:active,4:2=ceph0-mds0=up:active,4:4=ceph1-mds1=up:active},
3 up:standby
Though i have got some cephfs client mounted:
[root@rgw0 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 2.4G 48G 5% /
devtmpfs 32G 0 32G 0% /dev
tmpfs 32G 0 32G 0% /dev/shm
tmpfs 32G 26M 32G 1% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/mapper/centos-home 51G 33M 51G 1% /home
/dev/sda1 497M 164M 333M 34% /boot
172.17.0.171:6789:/ 44T 558G 44T 2% /mnt/ceph1_cephfs
172.17.0.172:6789:/ 44T 558G 44T 2% /mnt/cephfs
172.17.0.170:6789:/ 44T 558G 44T 2% /mnt/ceph0_cephfs
This phenomenon are so weird, can someone explain and help me?
Any info will be greatly appreciated.
THANKS
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