Dear Ceph experts,
I'm a very new Ceph user. I made a blunder that I removed some OSDs (and
all files in the related directories) before Ceph finished rebalancing
datas and migrating pgs.
Not to mention the data loss, I meet the problem that:
1) There are always stale pgs showing in ceph sta
till show up in your CRUSH, then try and remove them
from the CRSH map with 'ceph osd crush rm osd.15'.
If you took out both OSDs, you will need to use some of the recovery
tools. I believe the procedure is roughly, mount the drive in another
box, extract the PGs needed, then shut
e from back up as
to not be surprised by data corruption in the images. Neither option
is ideal or quick.
Robert LeBlanc
Sent from a mobile device please excuse any typos.
On Apr 23, 2015 6:42 PM, "FaHui Lin" <mailto:fahui@twgrid.org>> wrote:
Hi, thank you for y
Dear Ceph experts,
I found something strange about the performance of my Ceph cluster:
Read-out much slower than write-in.
I have 3 machines running OSDs, each has 8 OSDs running on 8 raid0s
(each made up of 2 HDDs) respectively. The OSD journal and data the is
on the same device. All machi
Dear Ceph experts,
I've got a problem with CephFS one day.
When I use vim to edit a file on cephfs, it will show fsync failed, and
later the file cannot be read/open anymore.
Strangely there is no error I can spot on ceph logs, dmesg, etc.
Here is an example below: (all machines in my ceph clus
aHui
Yan, Zheng 於 2016/1/28 下午 02:51 寫道:
This seems like the user has no read/write permission to cephfs data pool.
Regards
Yan, Zheng
On Thu, Jan 28, 2016 at 11:36 AM, FaHui Lin wrote:
Dear Ceph experts,
I've got a problem with CephFS one day.
When I use vim to edit a file on cep
Dear Ceph experts,
We meet a nasty problem with our CephFS from time to time:
When we try to list a directory under CephFS, some files or directories
do not show up. For example:
This is the complete directory content:
# ll /cephfs/ies/home/mika
drwxr-xr-x 1 10035 11 1559018781 Feb 2 07:
Regarding mounting 100+ clients, it shouldn't be a problem for the
MDS. If you do run into issues, please report them!
-Greg
ELRepo maintains mainline RPMs for EL6 and EL7:
http://elrepo.org/tiki/kernel-ml
Alternatively, you could try the FUSE client.
—Lincoln
On Mar 23, 2016, at 11:12 AM,
