Re: Weird behaviour of cephfs with samba

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Gregory Farnum <greg@...> writes:
> 
> What's the full stack you're using to run this with? If you're using
> the kernel client, try updating it or switching to the userspace
> (ceph-fuse, or Samba built-in) client. If using userspace, please make
> sure you've got the latest one.
> -Greg

The system is:

root@gru:~# uname -a; cat /etc/issue; ceph --version
Linux gru 3.13.0-57-generic #95-Ubuntu SMP Fri Jun 19 09:28:15 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 14.04.2 LTS \n \l
ceph version 0.87.2 (87a7cec9ab11c677de2ab23a7668a77d2f5b955e)

The filesystem is mounted via the kernel module:

root@gru:~# modinfo ceph
filename:       /lib/modules/3.13.0-57-generic/kernel/fs/ceph/ceph.ko
license:        GPL
description:    Ceph filesystem for Linux
author:         Patience Warnick <patience@xxxxxxxxxxxx>
author:         Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author:         Sage Weil <sage@xxxxxxxxxxxx>
alias:          fs-ceph
srcversion:     659145B67321D11C1A5C076
depends:        fscache,libceph
intree:         Y
vermagic:       3.13.0-57-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        A5:5B:8D:E6:8A:60:7A:DB:FA:6D:F9:60:00:50:69:50:CD:AE:A0:41
sig_hashalgo:   sha512

I updated to hammer, but the problem persisted:

root@gru:/etc/puppet# ceph --version; modinfo ceph
ceph version 0.94.2 (5fb85614ca8f354284c713a2f9c610860720bbf3)
filename:       /lib/modules/3.13.0-58-generic/kernel/fs/ceph/ceph.ko
license:        GPL
description:    Ceph filesystem for Linux
author:         Patience Warnick <patience@xxxxxxxxxxxx>
author:         Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author:         Sage Weil <sage@xxxxxxxxxxxx>
alias:          fs-ceph
srcversion:     659145B67321D11C1A5C076
depends:        fscache,libceph
intree:         Y
vermagic:       3.13.0-58-generic SMP mod_unload modversions
signer:         Magrathea: Glacier signing key
sig_key:        70:A9:7E:EA:B2:62:56:39:DF:8C:99:79:47:6F:D1:51:6D:CD:65:0B
sig_hashalgo:   sha512

Ok, so on to ceph-fuse. Unfortunately, I can't seem to be able to get this
to work at all. The process starts Ok with 

root@gru:/mnt# ceph-fuse -m 10.208.66.1:6789 /mnt/regtest2
ceph-fuse[8525]: starting ceph client
2015-07-27 18:43:27.790224 7f72dc0497c0 -1 init, newargv = 0x44e3d30 newargc=11
ceph-fuse[8525]: starting fuse

and then detaches itself but the mountpoint stays empty no matter what.
/var/log/ceph/ceph-client.admin.log isn't enlighting as well. I've never
used a FUSE before, though, so I might be overlooking something.

Thanks
Joerg Henne



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