1 May
2020
1 May
'20
9:44 a.m.
Herve,
On Wed, Apr 29, 2020 at 2:57 PM Herve Ballans <herve.ballans(a)ias.u-psud.fr>
wrote:
Hi Alex,
Thanks a lot for your tips. I note that for my planned upgrade.
I take the opportunity here to add a complementary question regarding the
require-osd-release functionality (ceph osd require-osd-release nautilus )
I remember that one time I did that (on another cluster, a proxmox one)
and it took a very long time and had a strong impact on the ceph
performances during this operation (several hours)
Did you notice that too on your side ?
I did not notice any issues with the process. That said, the upgrade was
in our lab cluster, which does not do a lot of IO. Things may be different
in one of the production clusters, but I will not know for at least a
couple of months.
--
Alex Gorbachev
Intelligent Systems Services Inc.
Thanks again,
Hervé
On 29/04/2020 20:39, Alex Gorbachev wrote:
On Wed, Apr 29, 2020 at 11:54 AM Herve Ballans <
herve.ballans(a)ias.u-psud.fr> wrote:
Hi all,
I'm planning to upgrade one on my Ceph Cluster currently on Luminous
12.2.13 / Debian Stretch (updated).
On this cluster, Luminous is packaged from the official Ceph repo (deb
https://download.ceph.com/debian-luminous/ stretch main)
I would like to upgrade it with Debian Buster and Nautilus using the
croit.io repository (deb https://mirror.croit.io/debian-nautilus/ buster
main)
I already prepared the steps procedure but I just want to verify one
step regarding the upgrade of the ceph packages.
Do I have to upgrade ceph in the same time than Debian or do i have to
upgrade ceph after the Debian upgrade from Stretch to Buster ?
1) In the first case :
* Replace stretch by buster in /etc/apt/sources.list
* Modify the ceph.list repo by croit.io one
* Upgrade the entire nodes
2) In the second case (upgrade Debian then Ceph)
* Replace stretch by buster in /etc/apt/sources.list
* keep the /etc/apt/sources.list.d/ceph.list as it is
* Upgrade and reboot the nodes
* replace the ceph.list file by croit.io
* upgrade the ceph packages
* restarting the Ceph services (in the right order MON -> MGR -> OSD
-> MDS)
Thanks a lot for your advices
Regards,
Hervé
Hi Hervé,
The one thing I had trouble with (and it's primarily from not reading the
docs very carefully) is that you should NOT enable the messenger 2 protocol
until all OSDs have been updated. In other words, Ceph will complain about
not running msgr2, but you should leave it like that until all OSDs are on
Nautilus. Then you run:
ceph mon enable-msgr2
ceph osd require-osd-release nautilus
Ref: https://docs.ceph.com/docs/master/releases/nautilus/
--
Alex Gorbachev
Intelligent Systems Services Inc.
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