I have used rook for a year, it's really easy to manage the ceph
cluster, but I didn't use it later, because ceph cluster
is complicated enough, I don't want to make it more complicated with k8s.
If you want to use ceph , you have to know ceph+k8s+rook, each module
can cause problems.
On
Hi guys,
I want to add a CDN service for my rgws, and provide a url without
authentication.
I have a test on openresty, but I'm not sure it it suitable for
production. Which tool do you use in production?
Thanks.
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questions.
Off the top of my head, we have set:
osd_max_scrubs 20
osd_scrub_auto_repair true
osd _scrub_load_threashold 0.6
We do not limit srub hours.
Thank you,
Ray
-Original Message-
From: norman.kern
Sent: Wednesday, March 9, 2022 7:28 PM
To: Ray Cunningham
Cc: ceph-users
Cunningham
Sent: Thursday, March 10, 2022 7:59 AM
To: norman.kern
Cc: ceph-users@ceph.io
Subject: RE: [ceph-users] Scrubbing
We have 16 Storage Servers each with 16TB HDDs and 2TB SSDs for DB/WAL, so we
are using bluestore. The system is running Nautilus 14.2.19 at the moment, with
an upgrade scheduled
Ray,
Can you provide more information about your cluster(hardware and
software configs)?
On 3/10/22 7:40 AM, Ray Cunningham wrote:
make any difference. Do
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On Tue, 8 Mar 2022 at 05:18, norman.kern wrote:
Dear Ceph folks,
Anyone is using cephadm in product(Version: Pacific)？ I found several bugs
on it and
I really doubt
Dear Ceph folks,
Anyone is using cephadm in product(Version: Pacific)？ I found several bugs on
it and
I really doubt it.
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Chad,
As the document noted, min_size means "Minimum number of replicas to
serve the request", so you can't read when number of PGs below min_size.
Norman
Best regards
On 12/17/21 10:59 PM, Chad William Seys wrote:
ill open an issue to h
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Joshua,
Quincy should release in March 2022, You can find the release cycle and
standards from https://docs.ceph.com/en/latest/releases/general/
Norman
Best regards
On 12/22/21 9:37 PM, Joshua West wrote:
Where do I find information on the release timeline for quincy?
I learned a lesson
Mark,
Thanks for your reply. I made the test on the local host and no replica
pg set. The crimson may help me a lot and I will do more tests.
And I will try rbd persistent cache feature for that the client is
sensitive to latency.
P.S. crimson can be used in production now or not ?
On
Marc,
Thanks for your reply. The wiki page is very helpful to me. I have
analyzed the I/O flow and pretend to optimize the librbd client.
And I found RBD has support persistent
cache(https://docs.ceph.com/en/pacific/rbd/rbd-persistent-write-back-cache/),
and I will have a try.
P.S. Anyone
I create a rbd pool using only two SATA SSDs(one for data, another for
database,WAL), and set the replica size 1.
After that, I setup a fio test on Host same with the OSD placed. I found
the latency is hundreds micro-seconds(sixty micro-seconds for the raw
SATA SSD ).
The fio outpus:
Hi Anthony,
Thanks for your reply. If the SSD down, Do I have to rebuild the 3-4
OSDs and balance the data in the OSD?
在 2021/11/20 下午2:27, Anthony D'Atri 写道:
On Nov 19, 2021, at 10:25 PM, norman.kern wrote:
Hi guys,
Nowadays, I have some SATA SSDs(400G) and HDDs(8T)，How many HHDs(Data
Hi guys,
Nowadays, I have some SATA SSDs(400G) and HDDs(8T)，How many HHDs(Data)
share one SSD(DB) is better?
And If the SSD is broken down, it will cause all OSDs which share it down?
Wait for your replies.
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Hi guys,
I have a long holiday since this summer, I came back to setup a new ceph
server, I want to know which stable version of ceh you're using for
production?
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Hi David,
The web page is missing:
https://docs.ceph.com/en/latest/docs/master/install/get-packages/
\ SORRY/
\ /
\This page does /
] not exist yet.[,'|
] [ /
Hi,
Anyone knows how to know which client hold lock of a file in Ceph fs?
I met a dead lock problem that a client holding on get the lock, but I don't
kown which client held it.
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On 2021/3/10 下午3:05, Konstantin Shalygin wrote:
>> On 10 Mar 2021, at 09:50, Norman.Kern wrote:
>>
>> I have used Ceph rbd for Openstack for sometime, I met a problem while
>> destroying a VM. The Openstack tried to
>>
>> delete rbd image but failed. I
Hi Guys,
I have used Ceph rbd for Openstack for sometime, I met a problem while
destroying a VM. The Openstack tried to
delete rbd image but failed. I have a test deleting a image by rbd command, it
costs lots of time(image size 512G or more).
Anyone met the same problem with me?
Thanks,
I met the same problem, I set the reweight value to make it not worse. Do you
solve it by setting balancer? My ceph verison is 14.2.5.
Thank you,
Norman
On 2021/3/7 下午12:40, Anthony D'Atri wrote:
> ceph balancer status
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James,
Can you tell me what's the hardware config of your bcache? I use the 400G SATA
SSD as cache device and
10T HDD as the storage device. Hardware relationed?
On 2021/3/2 下午4:49, James Page wrote:
> Hi Norman
>
> On Mon, Mar 1, 2021 at 4:38 AM Norman.Kern wrote:
>
>> H
On 2021/3/2 下午4:49, James Page wrote:
> Hi Norman
>
> On Mon, Mar 1, 2021 at 4:38 AM Norman.Kern wrote:
>
>> Hi, guys
>>
>> I am testing ceph on bcache devices, I found the performance is not good
>> as expected. Does anyone have any best practices for it?
On 2021/3/2 上午5:09, Andreas John wrote:
> Hallo,
>
> do you expect that to be better (faster), than having the OSD's Journal
> on a different disk (ssd, nvme) ?
No, I created the OSD storage devices using bcache devices.
>
>
> rgds,
>
> derjohn
>
>
> On 01.0
On 2021/3/1 下午6:32, Matthias Ferdinand wrote:
> On Mon, Mar 01, 2021 at 12:37:38PM +0800, Norman.Kern wrote:
>> Hi, guys
>>
>> I am testing ceph on bcache devices, I found the performance is not
>> good as expected. Does anyone have any best practices for it? Tha
Hi, guys
I am testing ceph on bcache devices, I found the performance is not good as
expected. Does anyone have any best practices for it? Thanks.
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