Hi list!
We've got a Ceph cluster where the OS of the Ceph nodes lives on a set of
SSD disks in mdadm RAID 1. We were wondering if there are any (performance)
benefits of moving the MGR data away from this RAID 1 and onto a dedicated
non-RAID SSD partition. The drawback would be reduced prot
Hi everyone, I'm having a really nasty issue since around two days where
our cluster report a bunch of SLOW_OPS on one of our OSD as:
https://paste.openstack.org/show/b3DkgnJDVx05vL5o4OmY/
Here is the cluster specification:
* Used to store Openstack related data (VMs/Snaphots/Volumes/Swift).
Hi,
How can I identify which operation this OSD is trying to achieve as
osd_op() is a bit large ^^ ?
I would start by querying the OSD for historic_slow_ops:
ceph daemon osd. dump_historic_slow_ops to see which operation it is.
How can I identify the related images to this data chunk?
You
Hi,
if you want to have DB and WAL on the same device, just don't specify
WAL in your drivegroup. It will be automatically created on the DB
device, too. In your case the rotational flag should be enough to
distinguish between data and DB.
based on the suggestion in the docs that this wo
Thanks a lot Eugene, I dumbly forgot about the rbd block prefix!
I’ll try that this afternoon and told you how it went.
Le mer. 23 févr. 2022 à 11:41, Eugen Block a écrit :
> Hi,
>
> > How can I identify which operation this OSD is trying to achieve as
> > osd_op() is a bit large ^^ ?
>
> I wou
On Wed, 23 Feb 2022 at 11:25, Eugen Block wrote:
> Hi,
>
> if you want to have DB and WAL on the same device, just don't specify
> WAL in your drivegroup. It will be automatically created on the DB
> device, too. In your case the rotational flag should be enough to
> distinguish between data and
Have you tried to backup and then remove the 'mds%d_openfiles.%x' object
to see could you start the MDS ?
Thanks.
On 2/23/22 7:07 PM, Wolfgang Mair wrote:
Update: I managed to clear the inode errors by deleting the parent
directory entry from the metadata pool. However the MDS still refuses
So!
Here is really mysterious resolution.
The issue vanished at the moment I requested the osd about its slow_ops
history.
I didn’t had time to do anything except to look for the osd ops history
that was actually empty :-)
I’ll keep all your suggestions if it ever came back :-)
Thanks a lot!
L
That is indeed unexpected, but good for you. ;-) Is the rest of the
cluster healthy now?
Zitat von Gaël THEROND :
So!
Here is really mysterious resolution.
The issue vanished at the moment I requested the osd about its slow_ops
history.
I didn’t had time to do anything except to look for th
Hello,
I have upgraded our Ceph cluster from Nautilus to Octopus (15.2.15) over the
weekend. The upgrade went well as far as I can tell.
Earlier today, noticing that our CephFS data pool was approaching capacity, I
removed some old CephFS snapshots (taken weekly at the root of the filesystem),
ke
Hi Alexander,
thank you for your suggestion! All my Nodes have ECC memory. However, I have
now checked that it was recognized correctly on every system (dmesg | grep
EDAC). Furthermore I checkt if an error occurred by using `edac-util` and also
by searching in the logs of the mainboard BMCs. Ev
Hi Igor,
I let ceph rebuild the OSD.7. Then I added
```
[osd]
debug bluefs = 20
debug bdev = 20
debug bluestore = 20
```
to the ceph.conf of all 3 nodes and shut down all 3 nodes without writing
anything to the pools on the HDDs (the Debian VM was not even running).
Immed
On Thu, Feb 24, 2022 at 8:00 AM Jeremy Hansen wrote:
>
> Can’t figure out what I’m doing wrong. Is there another way to remove a
> snapshot schedule?
>
> [ceph: root@cephn1 /]# ceph fs snap-schedule status / / testfs
> {"fs": "testfs", "subvol": null, "path": "/", "rel_path": "/", "schedule":
>
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