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Thanks everyone for all of your guidance. To answer all the questions!
> Are the OSD nodes connected with 10Gb as well?
Yes
> Are you using SSDs for your index pool? How many?
Yes, for a node with 39 HDD OSDs we are using 6 Index SSDs
> How big are your objects?
Most test run at 64K, but I have
I have no idea why ceph-volume keeps failing so much. I keep zapping and
creating and all of a sudden it works. I am not having pvs or links left
in /dev/mapper. I am checking that with lsblk, dmsetup ls --tree and
ceph-volume inventory.
These are the stdout/err I am having, every time ceph-
Hi,
what is the nbproc setting on the haproxy ?
Hi,
On 25/09/2020 20:39, Dylan Griff wrote:
We have 10Gb network to our two RGW nodes behind a single ip on
haproxy, and some iperf testing shows I can push that much; latencies
look okay. However, when using a small cosbench cluster I am unab
Some tests on dmcrypted (aes-xts-plain64, 512 bit) vs non-dmcrypted on a small
SAS SSD drive. Latencies are reported at 99.9 percentile
fio 4k, direct, sync, QD1
==
WRITE READ
IOPS LATENCIES(us)
Hi Andreas,
> Is this assumption correct? The documentation
> (https://docs.ceph.com/projects/ceph-ansible/en/latest/day-2/upgrade.html) is
> short on
> this.
That's right, if you run the rolling_update.yml playbook without changing the
ceph_stable_release in the group_vars then you will upgrad
I did also some testing, but was more surprised how much cputime kworker
and dmcrypt-write(?) instances are taking. Is there some way to get fio
output realtime to influx or prometheus so you can view it with load
together?
-Original Message-
From: t...@postix.net [mailto:t...@p
On 2020-09-28 11:45, Jake Grimmett wrote:
> To show the cluster before and immediately after an "episode"
>
> ***
>
> [root@ceph7 ceph]# ceph -s
> cluster:
> id: 36ed7113-080c-49b8-80e2-4947cc456f2a
> health: HEALTH_WARN
>
Hi,
On 25/09/2020 20:39, Dylan Griff wrote:
We have 10Gb network to our two RGW nodes behind a single ip on
haproxy, and some iperf testing shows I can push that much; latencies
look okay. However, when using a small cosbench cluster I am unable to
get more than ~250Mb of read speed total.
A
Hi Stefan,
many thanks for your good advice.
We are using ceph version 14.2.11
There is an issue with full osds - I'm not sure it's causing this
misplaced jump problem; I've reweighting the most full osds on several
consecutive days to reduce the number of nearfull osds, and it seems to
have no
I want to update my mimic cluster to the latest minor version using the
rolling-update script of ceph-ansible. The cluster was rolled out with that
setup.
So as long as ceph_stable_release stays on the current installed version
(mimic) the rolling update script will do only a minor update.
I
Dear All,
After adding 10 new nodes, each with 10 OSDs to a cluster, we are unable
to get "objects misplaced" back to zero.
The cluster successfully re-balanced from ~35% to 5% misplaced, however
every time "objects misplaced" drops below 5%, a number of pgs start to
backfill, increasing the "obj
Hi,
Today I found the same error messages on the logs:
-1 monclient: _check_auth_rotating possible clock skew, rotating keys
expired way too early
However, I found out after realising that Ceph was running without active
manager:
cluster:
health: HEALTH_WARN
no active mgr
This
Are all the OSDs in the same crush root? I would think that since the
crush weight of hosts change as soon as OSDs are out it impacts the
whole crush tree. If you separate the SSDs from the HDDs logically
(e.g. different bucket type in the crush tree) the ramapping wouldn't
affect the HDDs.
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