Rudder

During an updagrade from Rudder 6.1 to 6.2 in centos8, I had scale-out plugin installed in version 6.1-1.4, but it was not migrated with the following messages:

********************************************************************************
Due to incompatibility reasons for this specific version all plugins have been
disabled. Make sure to update your repo index and install the latest version of
your plugins before re-enabling them.
You can use the following commands to upgrade your plugins:
rudder package update
rudder package upgrade-all
********************************************************************************

Installing the plugin with rudder package installed scale-out-relay worked and installed plugin version 6.2-1.0.

While looking to log /var/log/rudder/install/rudder-webapp.xxx.log I saw:

Thu Dec  3 11:27:56 UTC 2020 - Starting rudder-webapp post installation script
INFO: Checking if rudder-web.properties database access credentials are all right... LDAP OK,  SQL OK
Adding LDAP index on attribute: software
Adding LDAP index on attribute: modifyTimestamp
Reindexing LDAP directory - this may take a few minutes... Done
INFO: A Technique library reload is needed and has been scheduled.
INFO: A Technique library reload is needed and has been scheduled.
Overriding existing techniques
INFO: Correcting permissions on /var/rudder/configuration-repository... Done
Techniques have been updated, and update branch set to current state of the Techniques
INFO: Checking PostgreSQL service status... OK
INFO: Checking LDAP service status... OK
downloading https://download.rudder.io/plugins/licenses/demo-normation/branding.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/change-validation.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/create-node-api.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/auth-backends.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/node-external-reports.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/aix.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/user-management.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/cve.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/datasources.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/dsc.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/reporting.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/license.key
downloading https://download.rudder.io/plugins/licenses/demo-normation/scale-out-relay.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/solaris.license
downloading https://download.rudder.io/plugins/licenses/demo-normation/api-authorizations.license
No newer release compatible versions found for the plugin rudder-plugin-scale-out-relay, disabling it.
INFO: The migration has completed successfully.
INFO: Correcting permissions on /var/rudder/configuration-repository... Done
Thu Dec  3 11:28:40 UTC 2020 - Ending rudder-webapp post installation script