On Fri, Sep 28, 2018 at 2:28 PM Marc Roos <M.Roos@xxxxxxxxxxxxxxxxx> wrote:
>
>
> Looks like that if I move files between different data pools of the
> cephfs, something is still refering to the 'old location' and gives an
> Input/output error. I assume this, because I am using different client
> ids for authentication.
>
> With the same user as configured in ganesha, mounting (kernel) erasure
> code cephfs m
> can create file out4
>
> At nfs4 client, same location m
> I can read out4
> I can create out5
> I can read out5
>
> Mounted root cephfs create file in folder t (test replicated 1)
> I can create out6
> I can move out6 to a the folder m (erasure coded)
> I can read out6
>
> At nfs4 client, m location
> [@m]# cat out6
> cat: out6: Input/output error
If it was due to permissions, I would expect to see EPERM rather than
EIO. EIO suggests something more fundamentally broken, like a client
version that doesn't understand the latest layout format.
Assuming you're using the CephFS FSAL in Ganesha (rather than
re-exporting a local mount of CephFS), it should be possible to create
an /etc/ceph/ceph.conf file with a "[client]" section that enables
debug logging (debug client = 10 or similar), and sets an output
location ("log file = /tmp/client.log") -- that might give a bit more
information about the nature of the error.
John
>
>
>
> [client.cephfs.t]
> key = xxx==
> caps mds = "allow rw path=/t"
> caps mgr = "allow r"
> caps mon = "allow r"
> caps osd = "allow rwx pool=fs_meta,allow rwx pool=fs_data, allow
> rwx pool=fs_data.r1"
>
> [client.cephfs.m]
> key = xxx==
> caps mds = "allow rw path=/m"
> caps mgr = "allow r"
> caps mon = "allow r"
> caps osd = "allow rwx pool=fs_meta,allow rwx pool=fs_data.ec"
>
>
> [@ test]# cat /etc/redhat-release
> CentOS Linux release 7.5.1804 (Core)
>
> [@ test]# rpm -qa | grep ceph | sort
> ceph-12.2.8-0.el7.x86_64
> ceph-base-12.2.8-0.el7.x86_64
> ceph-common-12.2.8-0.el7.x86_64
> ceph-fuse-12.2.8-0.el7.x86_64
> ceph-mds-12.2.8-0.el7.x86_64
> ceph-mgr-12.2.8-0.el7.x86_64
> ceph-mon-12.2.8-0.el7.x86_64
> ceph-osd-12.2.8-0.el7.x86_64
> ceph-radosgw-12.2.8-0.el7.x86_64
> ceph-selinux-12.2.8-0.el7.x86_64
> collectd-ceph-5.8.0-2.el7.x86_64
> libcephfs2-12.2.8-0.el7.x86_64
> python-cephfs-12.2.8-0.el7.x86_64
>
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