3232528 - SAP HANA upgrade ends with 'WARNING: The import of delivery units is skipped due to a failed database restart!'

During HANA upgrade, you notice the HBLM.log ends with

 ERR : Update of SAP HANA Database components failed.
 INFO: Summary of critical errors
 ERR :   Update of SAP HANA Database components failed.
 ERR :     Update of SAP HANA Database through SAP Host Agent Operation failed!
 ERR :       Update of SAP HANA Database on host '<hostname>' failed!
 INFO:         >WARNING: The import of delivery units is skipped due to a failed database restart!
 INFO:         Upgrade failed
 INFO:           error upgrading
 INFO:             Failed to determine current secure store setup
 INFO:             Cannot start system
 INFO:               Start instance <num> on host '<hostname>' (worker) failed. Has to be restarted manually.
 INFO:                 Cannot establish HTTPS connection to '<hostname>': Connection reset by peer

SAP HANA, platform edition 1.0

SAP HANA, platform edition 2.0

saphana, sap_hana , KBA , HAN-LM-UPG-DB , Upgrade of HANA Database , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , Problem