/var/log/vmware/vcf/domainmanager/domainmanager.log will show entries similar to YYYY-MM-DDTHH:MM:SS ERROR [vcf_dm,692705ad2254fee5a07f48623cbb7f5a,abfc] [c.v.v.c.f.a.UpdateInventoryVdsWithNsxDetailsForClustersAction,dm-exec-1] Failed to update the VDS in the inventoryjava.lang.IllegalStateException: Duplicate key vds_name (attempted merging values class Vds {
VCF 5.2.x
This issue occurs because the Add Cluster workflow triggers a VDS inventory synchronization for the imported domain. In environments where multiple clusters share the same vDS, SDDC Manager attempts to update that vDS multiple times, resulting in the “Duplicate key vds_name” error.
If you encounter the symptoms outlined above, please contact Broadcom Technical Support for further assistance, as the resolution involves modifying SDDC Manager database.