Hello,
I have a problem with an OSD not starting after being mounted offline using the
ceph-objectstore-tool --op fuse command.
The cephadm orch ps now shows me the osd in error state:
osd.0 storage1 error 2m ago 5h - 4096M
If I'm
Hi all,
I am trying to add an OSD using cephadm but it fails with the message found
below. Do you have any ide what may be wrong? The given device used to be in
the cluster but it has been removed, and now the device appears as available in
the `ceph orch device ls`.
Thank you,
Laszlo
osts (given your
failure domain would be "host"), which is already the default for the
replicated_rule. Did I misunderstand something?
Regards,
Eugen
Zitat von Budai Laszlo:
Hi there,
I'm curious if there is anything against configuring an ODS to be
part in multiple CRUSH
Hello everyone,
can someone explain, or direct me to some documentation that explains the role
of the blocklists (former blacklist). What do they useful for? how do they work?
Thank you,
Laszlo
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Hi there,
I'm curious if there is anything against configuring an ODS to be part in
multiple CRUSH hierarchies. I'm thinking of the following scenario:
I want to create pools that are using distinct sets of OSDs. I want to make sure that a
piece data which replicated at application level will
Dear All,
I'm testing ceph quincy and I have problems using the cephadm ochestrator
backend. When I'm trying to use it to start/stop osd daemons nothing happens.
I have a "brand new" cluster deployed with cephadm. So far everything else that
I tried worked just like in Pacific, but the ceph
Hello everybody,
Is there a way to create the scsi targets from the command line with the ceph command?
(Or a series of commands that can be put in a script.) I have reviewed the "ceph
-h" but I guess I'm missing something.
Thank you,
Laszlo
___
Hi Ilya,
Thank you for your answer!
On 3/24/22 14:09, Ilya Dryomov wrote:
How can we see whether a lock is exclusive or shared? the rbd lock ls command
output looks identical for the two cases.
You can't. The way --exclusive is implemented is the client simply
refuses to release the lock
Hi all,
is there any possibility to turn an exclusive lock into a shared one?
for instance if I map a device with "rbd map testimg --exclusive" then is there
any way to switch that lock to a shared one so I can map the rbd image on an other node
as well?
How can we see whether a lock is
egards,
Laszlo
On 3/23/22 23:18, Budai Laszlo wrote:
Hello all!
I am facing the following issue with ceph RBD: I can pap the image on multiple
hosts.
After I map on the first host I can see its lock on the image. After that I was
expecting the map to fail on the second node, but actually it
Hello all!
I am facing the following issue with ceph RBD: I can pap the image on multiple
hosts.
After I map on the first host I can see its lock on the image. After that I was
expecting the map to fail on the second node, but actually it didn't. The
second node was able to map the image and
in the mgr API to downgrade privileges.
* Additionally, the Dashboard authentication is password-based, while cephx
is key-based.
Kind Regards,
Ernesto
On Tue, Mar 22, 2022 at 3:41 PM Budai Laszlo wrote:
Dear all,
is it possible to use standalone ceph for provisioning storage
Dear all,
is it possible to use standalone ceph for provisioning storage resources for multiple
tenants in a "Self service" way? (users log in to the dashboard, and they can
manage their own resources).
Any documentation link or other reference is highly appreciated.
Thank you,
Laszlo
Hello all!
what is the flags showing in the rbd info output? where can I read more about
it?
Thank you,
Laszlo
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_name}
> Very easy.
> This may kick off some backfill so I'd suggest setting norebalance
> before doing this.
>
> Rich
>
> On Wed, 8 Sept 2021 at 07:51, Nathan Fish wrote:
>> I believe you would create a new rule and switch?
>>
>> On Tue, Sep 7, 2021 at 3:46 PM
Dear all,
is there a way to change the failure domain of a CRUSH rule using the CLI?
I know I can do that by editing the crush map. I'm curious if there is a "CLI
way"?
Thank you,
Laszlo
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Dear all,
I am experimenting with ceph pacific, and I have noticed that if I remove an
object from a pool that has a snapshot, the `rados -p poolname ls` command will
keep showing the object.
```
root@node1:~# rados -p testpool ls
first
root@node1:~# rados -p testpool mksnap snap1
created pool
er/rados/operations/control/
>
>
> or use the balancer module in newer releases *iff* all clients are new enough
> to handle pg-upmap
>
> https://docs.ceph.com/docs/nautilus/rados/operations/balancer/
>
>
>
>
>
>
>> On Jul 30, 2020, at 9:21 AM, Budai Laszlo
Dear all,
We have a ceph cluster where we are have configured two SSD only pools in order
to use them as cache tier for the spinning discs. Altogether there are 27 SSDs
organized on 9 hosts distributed in 3 chassis. The hierarchy looks like this:
$ ceph osd df tree | grep -E 'ssd|ID'
ID CLASS
Hello all,
is there a way to interrogate a cache tier pool about the number of dirty
objects/bytes that it contains?
Thank you,
Laszlo
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Hello all,
is it allowed to configure and activate a cache tier for a pool that contains
used RBD images?
The documentation
(https://docs.ceph.com/docs/mimic/rados/operations/cache-tiering/) doesn't say
anything about this, but we have experienced errors with our VMS consuming ceph
rbd
have understood CRUSH, I am
> quite sure that will answer many of your questions.
>
> And feel free to ask about CRUSH. I would be glad to answer.
>
> BR
>
>
>
>
>
> On Wed, Jul 15, 2020 at 8:54 AM Budai Laszlo <mailto:laszlo.bu...@gmail.com>&g
?
Thank you,
Laszlo
On 7/15/20 8:12 AM, Budai Laszlo wrote:
> Hi Nghia,
>
> in the docs (https://docs.ceph.com/docs/master/architecture/#about-pools)
> there is the statement "Ceph Clients retrieve a Cluster Map from a Ceph
> Monitor, and write objects to pools."
client get the knowledge about a change in the
cluster?
Thank you,
Laszlo
On 7/15/20 7:57 AM, Nghia Viet Tran wrote:
> Hi Laszlo,
>
> Which client are you talking about?
>
> On 7/15/20, 11:54, "Budai Laszlo" wrote:
>
> Hello everybody,
>
> I'm
Hello everybody,
I'm trying to figure out how often the ceph client is contacting the monitors
for updating its own information about the cluster map.
Can anyone point me to a document describing this client <-> monitor
communication?
Thank you,
Laszlo
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