Hello, Ceph users,
I would like to use my secondary Ceph cluster for backing up RBD OpenNebula
volumes from my primary cluster using mirroring in image+snapshot mode.
Because it is for backups only, not a cold-standby, I would like to use
erasure coding on the secondary side to save a
Hello, Eugen,
Eugen Block wrote:
> Janne was a bit quicker than me, so I'll skip my short instructions
> how to deploy it manually. But your (cephadm managed) cluster will
> complain about "stray daemons". There doesn't seem to be a way to
> deploy rgw daemons manually with the cephadm
Hello, Janne,
Janne Johansson wrote:
> Den mån 29 jan. 2024 kl 08:11 skrev Jan Kasprzak :
> >
> > Is it possible to install a new radosgw instance manually?
> > If so, how can I do it?
>
> We are doing it, and I found the same docs issue recently, so Zac
> p
Hi all,
how can radosgw be deployed manually? For Ceph cluster deployment,
there is still (fortunately!) a documented method which works flawlessly
even in Reef:
https://docs.ceph.com/en/latest/install/manual-deployment/#monitor-bootstrapping
But as for radosgw, there is no such
to open a tracker issue.
:
: Thanks,
: Eugen
:
: Zitat von Jan Kasprzak :
:
: >Hello, Ceph users,
: >
: >what is the correct location of keyring for ceph-crash?
: >I tried to follow this document:
: >
: >https://docs.ceph.com/en/latest/mgr/crash/
: >
: ># ceph auth get-or
Hello, Ceph users,
what is the correct location of keyring for ceph-crash?
I tried to follow this document:
https://docs.ceph.com/en/latest/mgr/crash/
# ceph auth get-or-create client.crash mon 'profile crash' mgr 'profile crash'
> /etc/ceph/ceph.client.crash.keyring
and copy this
Hi Eugen,
Eugen Block wrote:
: you probably have empty OSD nodes in your crush tree. Can you send
: the output of 'ceph osd tree'?
You are right, there were 4 hosts in the crush tree, which I removed
from the cluster and repurposed a while ago. I have edited the CRUSH
map to remove the
Hello, Ceph users!
I have recently noticed that when I reboot a single ceph node,
ceph -s reports "5 hosts down" instead of one. The following
is captured during reboot of a node with two OSDs:
health: HEALTH_WARN
noout flag(s) set
2 osds down
5
Hello,
Jeremy Hansen wrote:
: Is it possible to use Ceph as a root filesystem for a pxe booted host?
I am not sure about CephFS, but as for Ceph RBD, it should definitely
be possible to get an IP address and run "rbd map" from the initrd,
and then use /dev/rbd0 as a root device.
-Yenya
Hello, Ceph users,
what is the best way how to change the storage layout of all buckets
in radosgw?
I have default.rgw.buckets.data pool as replicated, and I want to use
an erasure-coded layout instead. One way is to use cache tiering
as described here:
Hello,
Stefan Kooman wrote:
: Hi,
:
: On 9/9/22 10:53, Frank Schilder wrote:
: >Is there a chance you might have seen this
https://tracker.ceph.com/issues/49231 ?
: >
: >Do you have network monitoring with packet reports? It is possible though
that you have observed something new.
: >
TL;DR: my cluster is working now. Details and further problems below:
Jan Kasprzak wrote:
: I did
:
: ceph tell mon.* config set mon_sync_max_payload_size 4096
: ceph config set mon mon_sync_max_payload_size 4096
:
: and added "mon_sync_max_payload_size = 4096" into the [globa
Hello, Frank,
Frank Schilder wrote:
: Might be a problem I had as well. Try setting
:
: mon_sync_max_payload_size 4096
:
: If you search this list for that you will find the background.
Thanks.
I did
ceph tell mon.* config set mon_sync_max_payload_size 4096
ceph config
Jan Kasprzak wrote:
: Hello,
:
: I had to rebuld a data directory of one of my mons, but now I can't get
: the new mon to join the cluster. What I did was based on this documentation:
: https://docs.ceph.com/en/latest/rados/operations/add-or-rm-mons/
:
: ceph mon remove mon1
:
: ssh root
Hello,
I had to rebuld a data directory of one of my mons, but now I can't get
the new mon to join the cluster. What I did was based on this documentation:
https://docs.ceph.com/en/latest/rados/operations/add-or-rm-mons/
ceph mon remove mon1
ssh root@mon1
mkdir /var/lib/ceph/mon/tmp
Hello, Ceph users,
what does the following message mean?
Mar 22 11:59:07 mon2.host.name ceph-mon[1148]: 2022-03-22T11:59:07.286+0100
7f32d2b07700 -1 mon.mon2@1(peon).osd e2619840 register_cache_with_pcm not using
rocksdb
It appears in the journalctl -u ceph-mon@ on all three mons of
Carlos,
Carlos Mogas da Silva wrote:
: >From what I can gather, this will not be smooth at all, since I can't make
an inplace upgrade of the
: OS first and then Ceph and neither other way around. So the idea is to create
a total new Ceph
: cluster from scratch and migrate the data from
Jan Kasprzak wrote:
[...]
: So I don't think my problem is OOM. It might be communication,
: but I tried to tcpdump and look for example for ICMP port unreachable
: messages, but nothing interesting there.
D'oh. Wrong prefix length of public_network in ceph.conf,
copied from the old
Sebastian,
Sebastian Knust wrote:
: On 01.12.21 17:31, Jan Kasprzak wrote:
: >In "ceph -s", they "2 osds down"
: >message disappears, and the number of degraded objects steadily decreases.
: >However, after some time the number of degraded objects star
Hello,
I am trying to upgrade my Ceph cluster (v15.2.15) from CentOS 7 to CentOS 8
stream. I upgraded monitors (a month or so ago), and now I want to upgrade
OSDs: for now I upgraded one host with two OSDs: I kept the partitions
where OSD data live (I have separate db on NVMe partition
Ilya Dryomov wrote:
: On Thu, Jul 1, 2021 at 10:50 AM Jan Kasprzak wrote:
: >
: > Ilya Dryomov wrote:
: > : On Thu, Jul 1, 2021 at 8:37 AM Jan Kasprzak wrote:
: > : >
: > : > # rbd snap unprotect one/one-1312@snap
: > : > 2021-07-01 08:28:40.747 7f3cb6ffd700 -1
librb
Ilya Dryomov wrote:
: On Thu, Jul 1, 2021 at 8:37 AM Jan Kasprzak wrote:
: >
: > # rbd snap unprotect one/one-1312@snap
: > 2021-07-01 08:28:40.747 7f3cb6ffd700 -1 librbd::SnapshotUnprotectRequest:
cannot unprotect: at least 1 child(ren) [68ba8e7bace188] in pool 'one'
: > 2021-07-01
Ilya Dryomov wrote:
: On Thu, Jul 1, 2021 at 8:37 AM Jan Kasprzak wrote:
: >
: > Hello, Ceph users,
: >
: > How can I figure out why it is not possible to unprotect a snapshot
: > in a RBD image? I use this RBD pool for OpenNebula, and somehow there
: > is a snapshot i
Hello, Ceph users,
How can I figure out why it is not possible to unprotect a snapshot
in a RBD image? I use this RBD pool for OpenNebula, and somehow there
is a snapshot in one image, which OpenNebula does not see. So I wanted
to delete the snapshot:
# rbd info one/one-1312
rbd image
Eugen,
Eugen Block wrote:
: Mykola explained it in this thread [1] a couple of months ago:
:
: `rbd cp` will copy only one image snapshot (or the image head) to the
: destination.
:
: `rbd deep cp` will copy all image snapshots and the image head.
Thanks for the explanation. I have created a
Hello, Ceph users,
what is the difference between "rbd cp" and "rbd deep cp"?
What I need to do is to make a copy of the rbd volume one of our users
inadveredly resized to a too big size, shrink the copied image to the
expected size, verify that everything is OK, and then delete the
Hello,
I have just upgraded my cluster from 14.2.16 to 14.2.21, and after the
upgrade, radosgw was listening on the default port 7480 instead of the SSL port
it used before the upgrade. It might be I mishandled
"ceph config assimilate-conf" previously or forgot to restart radosgw
after the
Hello, Ceph users,
Lars Täuber wrote:
: +1 from me
:
: I also hope for a bare metal solution for the upcoming versions. At the
moment it is a show stopper for an upgrade to Octopus.
Also +1. Not having a unix-style deployment tool is a show-stopper for me
as well. So far I keep my
Hello, Ceph users,
does anybody use Ceph on recently released CentOS 8? Apparently there are
no el8 packages neither at download.ceph.com, nor in the native CentOS package
tree. I am thinking about upgrading my cluster to C8 (because of other
software running on it apart from Ceph). Do
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