[Yahoo-eng-team] [Bug 2089522] [NEW] [stable] 2024.1 and 2023.2, broken grenade and skip jobs due to a partial migration to um/2023.1

Public bug reported: The following jobs are currently failing: * 2024.1: neutron-[ovs|ovn]-grenade-multinode-skip-level * 2023.2: neutron-ovs-grenade-* This is caused because of a partial migration to unmaintained/2023.1. Some projects (Glance for example), didn't finish this migration [1]. [1]h

[Yahoo-eng-team] [Bug 2089519] [NEW] instance evacuate faile due to it's volume have two attachments

Public bug reported: In the _post_live_migration_remove_source_vol_connections phase of live migration, if the attachment delete failed and it will not raise exception, but the instance's volume attachment that based source node will remain and instance will create a new attachment record on the d