On Tue, 25 Nov 2014 03:47:08 PM Eric Eastman wrote:
> It has been almost a year since I last tried ZFS, but I had to add to the
> ceph.conf file:
>
>filestore zfs_snap = 1
>journal aio = 0
>journal dio = 0
>
> Eric
Thanks Eric, I figured it out in the end, though I haven't tried
> - Have created ZFS mount:
> “/var/lib/ceph/osd/ceph-0”
> - followed the instructions at:
> http://ceph.com/docs/firefly/rados/operations/add-or-rm-osds/
> failing on the step 4. Initialize the OSD data directory.
> ceph-osd -i 0 —mkfs --mkkey
> 2014-11-25 22:12:26.563666 7ff12b466780 -1
> fil
I've found the cause of the problem - ceph was attempting to create
the journal with direct io which zfs doesn't support. I worked round
it by disabling journal dio in ceph.config
[osd]
journal dio = false
Dunno if this is a good idea or not or whether there is a better way
of doing it :_
On 26
Thanks Craig, I had a good read of it - from what I read, the std ceph
packages should work with zfs, just not make use of its extra features
(writeparallel support), whose performance was not all that good
anyway.
I did note the "set xattr to sa" comment which gave me a different error:)
ceph-os
There was a good thread on the mailing list a little while ago. There were
several recommendations in that thread, maybe some of them will help.
Found it:
https://www.mail-archive.com/ceph-users@lists.ceph.com/msg14154.html
On Tue, Nov 25, 2014 at 4:16 AM, Lindsay Mathieson <
lindsay.mathie...@
Testing ceph on top of ZFS (zfsonlinux), kernel driver.
- Have created ZFS mount:
"/var/lib/ceph/osd/ceph-0"
- followed the instructions at:
http://ceph.com/docs/firefly/rados/operations/add-or-rm-osds/
failing on the step 4. Initialize the OSD data directory.
ceph-osd -i 0 --mkfs --mkkey
Testing ceph on top of ZFS (zfsonlinux), kernel driver.
- Have created ZFS mount:
"/var/lib/ceph/osd/ceph-0"
- followed the instructions at:
http://ceph.com/docs/firefly/rados/operations/add-or-rm-osds/
failing on the step 4. Initialize the OSD data directory.
ceph-osd -i 0 --mkfs --mkkey
