Hi,
On 02/06/2016 04:44, Francois Lafont wrote:
> ~# grep ceph /etc/fstab
> id=cephfs,keyring=/etc/ceph/ceph.client.cephfs.keyring,client_mountpoint=/ /mnt/ fuse.ceph noatime,nonempty,defaults,_netdev 0 0
[...]
> And I have rebooted. After the reboot, big surprise with this:
>
> ~# cat /tmp/mount.fuse.ceph.log
> arguments are id=cephfs,keyring=/etc/ceph/ceph.client.cephfs.keyring,client_mountpoint= /mnt -o rw,_netdev,noatime,nonempty
> ceph-fuse --id=cephfs --keyring=/etc/ceph/ceph.client.cephfs.keyring --client_mountpoint= /mnt -o rw,noatime,nonempty
>
> Yes, this is not a misprint, there is no "/" after "client_mountpoint=".
[...]
> Now, my question is: which program gives the arguments to /sbin/mount.fuse.ceph?
> Is it the init program (upstart in my case)? Or does it concern a Ceph programs?
I have definitely found the culprit. In fact, this is not Upstart. It's "/sbin/mountall"
(from the "mountall" package) which is used by Upstart to mount filesystems in fstab.
In the source code "src/mountall.c", there is a line which removes wrongly the trailing
"/" in my valid fstab line:
id=cephfs,keyring=/etc/ceph/ceph.client.cephfs.keyring,client_mountpoint=/ /mnt/ fuse.ceph ...
I have made a bug report here where all is explained:
https://bugs.launchpad.net/ubuntu/+source/mountall/+bug/1588594
It could be good to know it (I lost 1/2 day with this bug ;)).
--
François Lafont
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