Bug 2161529

Summary: Controller should clear unknown feature flags
Product: Red Hat Enterprise Linux Fast Datapath Reporter: Ales Musil <amusil>
Component: ovn22.12Assignee: Ales Musil <amusil>
Status: CLOSED UPSTREAM QA Contact: Ehsan Elahi <eelahi>
Severity: unspecified Docs Contact:
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Version: FDP 22.ECC: ctrautma, dcbw, jiji, jishi, mmichels
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Last Closed: 2023-08-01 13:17:28 UTC Type: Bug
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Description Ales Musil 2023-01-17 08:18:33 UTC 
Description of problem:
We store available features for particular controller in other_config of chassis
table. If we install a controller version that has new feature it gets added into other_config. However the flag is not cleared when user decides to downgrade below that feature. Northd still assumes that the controller supports the feature and generates logical flows accordingly, which might not work on the downgraded controller. 


Solution would be to keep list of known features and remove anything that is not part of that list.
Comment 1 Ales Musil 2023-01-25 11:46:49 UTC 
Patches posted u/s: https://patchwork.ozlabs.org/project/ovn/list/?series=338416
Comment 2 OVN Bot 2023-05-11 04:10:28 UTC 
ovn23.06 fast-datapath-rhel-8 clone created at https://bugzilla.redhat.com/show_bug.cgi?id=2203014
ovn23.06 fast-datapath-rhel-9 clone created at https://bugzilla.redhat.com/show_bug.cgi?id=2203015
Comment 7 Mark Michelson 2023-08-01 13:17:28 UTC 
This issue is being closed as "UPSTREAM" since it is fixed upstream and is not being backported to ovn22.12.