On Tue, Nov 14, 2017 at 02:24:06AM +0000, Linh Vu wrote: > Your kernel is way too old for CephFS Luminous. I'd use one of the newer kernels from elrepo.org. :) We're on 4.12 here on RHEL 7.4. There is still a question: why on my host(3.10.0-327.el7.x86_64) cephfs can mount and load kernel module normally? Does it mean the docker's kernel must be above 4.12.* to enable cephfs？ -- Best Regards Dai Xiang > > ________________________________ > From: ceph-users <ceph-users-bounces@xxxxxxxxxxxxxx> on behalf of xiang.dai@xxxxxxxxxxx <xiang.dai@xxxxxxxxxxx> > Sent: Tuesday, 14 November 2017 1:13:47 PM > To: ceph-users@xxxxxxxxxxxxxx > Subject: mount failed since failed to load ceph kernel module > > Hi! > > I got a confused issue in docker as below: > > After install ceph successfully, i want to mount cephfs but failed: > > [root@dbffa72704e4 ~]$ /bin/mount 172.17.0.4:/<http://172.17.0.4:/> /cephfs -t ceph -o name=admin,secretfile=/etc/ceph/admin.secret -v > failed to load ceph kernel module (1) > parsing options: rw,name=admin,secretfile=/etc/ceph/admin.secret > mount error 5 = Input/output error > > But ceph related kernel modules have existed: > > [root@dbffa72704e4 ~]$ lsmod | grep ceph > ceph 327687 0 > libceph 287066 1 ceph > dns_resolver 13140 2 nfsv4,libceph > libcrc32c 12644 3 xfs,libceph,dm_persistent_data > > Check the ceph state(i only set data disk for osd): > > [root@dbffa72704e4 ~]$ ceph -s > cluster: > id: 20f51975-303e-446f-903f-04e1feaff7d0 > health: HEALTH_WARN > Reduced data availability: 128 pgs inactive > Degraded data redundancy: 128 pgs unclean > > services: > mon: 2 daemons, quorum dbffa72704e4,5807d12f920e > mgr: dbffa72704e4(active), standbys: 5807d12f920e > mds: cephfs-1/1/1 up {0=5807d12f920e=up:creating}, 1 up:standby > osd: 0 osds: 0 up, 0 in > > data: > pools: 2 pools, 128 pgs > objects: 0 objects, 0 bytes > usage: 0 kB used, 0 kB / 0 kB avail > pgs: 100.000% pgs unknown > 128 unknown > > [root@dbffa72704e4 ~]$ ceph version > ceph version 12.2.1 (3e7492b9ada8bdc9a5cd0feafd42fbca27f9c38e) luminous (stable) > > My container is based on centos:centos7.2.1511, kernel is 3e0728877e22 3.10.0-514.el7.x86_64. > > I saw some ceph related images on docker hub so that i think above > operation is ok, did i miss something important? > > -- > Best Regards > Dai Xiang _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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