Re: [HTCondor-users] Condor upgrade from 9.0x to 10.0x

[Andreas Haupt <andreas.haupt@xxxxxxx>]

Hi Thomas,

we did this update recently. One thing to note from our side: all idtokens
issued with HTC-9.0 were no longer valid with HTC-10.0. We had to recreate
them after the update.

Just in case you use idtokens for any authentication, you'll be warned ;-)

Cheers,
Andreas

On Wed, 2023-10-04 at 08:16 +0000, Thomas Birkett - STFC UKRI wrote:
> Hi all,
> Â
> Weâre currently looking at upgrading our Condor pool to Condor 10.0.9
> from Condor 9.0.15. I plan on upgrading the Scheddâs first, in testing,
> this works as expected where the daemons get restarted, jobs in the
> queue are picked up again and the Schedd carries on where it left off. I
> then plan on upgrading the Startdâs next, this again, goes smoothly. We
> have the config setup so a graceful restart of the daemons happens, the
> jobs drain out, condor is restarted and jobs start to run on the startd
> once again. However, when we upgrade the Central Managers, Startds loose
> communication to the Central Managers and are only re-established after
> a restart of the Condor daemons on the startd host, this would kill any
> running jobs on the node.
> Â
> Looking at the changes between the two versions, I believe this may be
> to do with the following:
> Â
> - https://opensciencegrid.atlassian.net/browse/HTCONDOR-283
> - https://opensciencegrid.atlassian.net/browse/HTCONDOR-287
> - https://opensciencegrid.atlassian.net/browse/HTCONDOR-1057
> Â
> Iâm guessing as there is this change in Condor 10, the startâs need to
> re-negotiate the security between the daemons, requiring this restart.
> My question to the community is if there is a way to upgrade the Condor
> pool without requiring the startd restart once the Central Managers are
> upgraded. Interestingly this does not affect the scheddâs which continue
> to communicate with the Central Managers.
> Â
> Many thanks,
> Â
> Thomas Birkett
> Senior Systems Administrator
> Scientific Computing Department Â
> Science and Technology Facilities Council (STFC)
> Rutherford Appleton Laboratory, Chilton, DidcotÂ
> OX11 0QX
> Â
> signature_609518872
> Â
> Â
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-- 
| Andreas HauptÂÂÂÂÂÂÂÂÂÂÂÂ| E-Mail: andreas.haupt@xxxxxxx
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