[slurm-users] upgrading slurm to 20.11

[Ole Holm Nielsen]

Hi,

You can upgrade from 19.05 to 20.11 in one step (2 major releases), 
skipping 20.02.  When that is completed, it is recommended to upgrade 
again from 20.11 to 21.08.8 in order to get the current major version. 
The 22.05 will be out very soon, but you may want to wait a couple of 
minor releases before upgrading to 22.05.

I have collected much detailed information about Slurm upgrades in my 
Wiki page:
https://wiki.fysik.dtu.dk/niflheim/Slurm_installation#upgrading-slurm

It is strongly recommended to make the dry-run test of the database 
upgrade, just to be sure your database won't cause problems.

/Ole



On 17-05-2022 18:13, byron wrote:
> Sorry, I should have been clearer.   I understand that with regards to 
> slurmd / slurmctld you can skip a major release without impacting 
> running jobs etc.  My questions was about upgrading slurmdbd and whether 
> it was necessary to upgrade through the intermediate major releases 
> (which I know understand is necessary).
> 
> Thanks
> 
> 
> On Tue, May 17, 2022 at 4:49 PM Paul Edmon <pedmon at cfa.harvard.edu 
> <mailto:pedmon at cfa.harvard.edu>> wrote:
> 
>     The slurm docs say you can do two major releases at a time
>     (https://slurm.schedmd.com/quickstart_admin.html
>     <https://slurm.schedmd.com/quickstart_admin.html>):
> 
>     "Almost every new major release of Slurm (e.g. 20.02.x to 20.11.x)
>     involves changes to the state files with new data structures, new
>     options, etc. Slurm permits upgrades to a new major release from the
>     past two major releases, which happen every nine months (e.g.
>     20.02.x or 20.11.x to 21.08.x) without loss of jobs or other state
>     information."
> 
>     As for old versions of slurm I think at this point you would need to
>     contact SchedMD.  I'm sure they have past releases they can hand out
>     if you are bootstrapping to a newer release.
> 
>     -Paul Edmon-
> 
>     On 5/17/22 11:42 AM, byron wrote:
>>     Thanks Brian for the speedy responce.
>>
>>     Am I not correct in thinking that if I just go from 19.05 to 20.11
>>     then there is the advantage that I can upgrade slurmd and
>>     slurmctld in one go and it won't affect the running jobs since
>>     upgrading to a new major release from the past two major releases
>>     doesn't affect the state information.  Or are you saying that  in
>>     this case (19.05  direct to 21.08) there isn't any impact to
>>     running jobs either.  Or did you step through all the versions
>>     when upgrading slurmd and slurmctld also?
>>
>>     Also where do I get a copy of 20.2 from if schedMD aren't
>>     providing it as a download.
>>
>>     Thanks
>>
>>
>>
>>
>>     On Tue, May 17, 2022 at 4:05 PM Brian Andrus <toomuchit at gmail.com
>>     <mailto:toomuchit at gmail.com>> wrote:
>>
>>         You need to step upgrade through major versions (not minor).
>>
>>         So 19.05=>20.x
>>
>>         I would highly recommend going to 21.08 while you are at it.
>>         I just did the same migration (although they started at 18.x)
>>         with no
>>         issues. Running jobs were not impacted and users didn't even
>>         notice.
>>
>>         Brian Andrus
>>
>>
>>         On 5/17/2022 7:35 AM, byron wrote:
>>         > Hi
>>         >
>>         > I'm looking at upgrading our install of slurm from 19.05 to
>>         20.11 in
>>         > responce to the recenty announced security vulnerabilities.
>>         >
>>         > I've been through the documentation / forums and have
>>         managed to find
>>         > the answers to most of my questions but am still unclear
>>         about the
>>         > following
>>         >
>>         >  - In upgrading the slurmdbd from 19.05 to 20.11 do I need
>>         to go
>>         > through all the versions (19.05 => 20.2 => 20.11)? From
>>         reading the
>>         > forums it look as though it is necesary
>>         >
>>         https://groups.google.com/g/slurm-users/c/fftVPaHvTzQ/m/YTWo1mRjAwAJ
>>         <https://groups.google.com/g/slurm-users/c/fftVPaHvTzQ/m/YTWo1mRjAwAJ>
>>         >
>>         https://groups.google.com/g/slurm-users/c/kXtepX8-L7I/m/udwySA3bBQAJ
>>         <https://groups.google.com/g/slurm-users/c/kXtepX8-L7I/m/udwySA3bBQAJ>
>>         >    However if that is the case it would seem strange that
>>         SchedMD have
>>         > removed 20.2 from the downloads page (I understand the
>>         reason is that
>>         > it contains the exploit) if it is still required for the
>>         upgrade.
>>         >
>>         > - We are running version 5.5.68 of the MariaDB, the version
>>         that comes
>>         > with centos7.9.   I've seen a few references to upgrading
>>         v5.5 but
>>         > they were in the context of upgrading from slurm 17 to 18.  I'm
>>         > wondering if its ok to stick with this version since we're
>>         already on
>>         > slurm 19.05.
>>         >
>>         > Any help much appreciated.