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3202176 - HANA DB recovery or system replication unregistration failed with error "LSS refused connection (reason: Version mismatch)"

Symptom

  • When you perform a recovery of your HANA DB, you are facing the following error in backup.log.

2022-05-04T13:58:55+09:00  P0016051      1808d6f3d71 ERROR   RECOVERY RECOVER DATA finished with error: [448] recovery could not be completed, [110092] Recovery failed in nameserver startup: An error occured while retrieving topology from backup: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)

And in nameserver trace, you also notice the following information.

[16105]{-1}[-1/-1] 2022-05-04 13:58:51.866099 e LssClient        LssClientTracer.cpp(00035) : isAvailable [controller]: lss exception: LSS refused connection (reason: Version mismatch)
[16105]{-1}[-1/-1] 2022-05-04 13:58:51.866252 e Crypto           LssController.cpp(00051) : LSS call failed: exception  1: no.301102  (Crypto/LocalSecureStoreClient/ExceptionTranslator.hpp:102) TID: 16105
    lss exception: LSS refused connection (reason: Version mismatch)
[16105]{-1}[-1/-1] 2022-05-04 13:58:51.866363 e RootKeyManager   RootKeyStoreTypeGetter.hpp(00135) : Failed to read usage information from LSS: exception  1: no.301102  (Crypto/LocalSecureStoreClient/ExceptionTranslator.hpp:102) TID: 16105
    lss exception: LSS refused connection (reason: Version mismatch)
[16105]{-1}[-1/-1] 2022-05-04 13:58:51.866409 i RootKeyManager   RootKeyManager.cpp(00153) : Singleton RootKeyManager serves keys for database ID: 1
[16105]{-1}[-1/-1] 2022-05-04 13:58:51.867392 i RootKeyManager   RootKeyManager.cpp(00153) : Singleton RootKeyManager serves keys for database ID: 1
[16118]{-1}[-1/-1] 2022-05-04 13:58:55.390841 e LssClient        LssClientTracer.cpp(00035) : isAvailable [controller]: lss exception: LSS refused connection (reason: Version mismatch)
[16118]{-1}[-1/-1] 2022-05-04 13:58:55.390977 e Crypto           LssController.cpp(00051) : LSS call failed: exception  1: no.301102  (Crypto/LocalSecureStoreClient/ExceptionTranslator.hpp:102) TID: 16118
    lss exception: LSS refused connection (reason: Version mismatch)
[16118]{-1}[-1/-1] 2022-05-04 13:58:55.392750 e Backup           BackupMgr_Manager.cpp(06501) : Aborting recovery because of exception  1: no.110092  (Backup/impl/Backup_Recover.cpp:101) TID: 16118
    Recovery failed in nameserver startup: An error occured while retrieving topology from backup: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)
exception throw location:

......

[16118]{-1}[-1/-1] 2022-05-04 13:58:55.404512 e Backup           BackupMgr_Manager.cpp(06551) : :::: RECOVERY finished with error: [448] recovery could not be completed, [110092] Recovery failed in nameserver startup: An error occured while retrieving topology from backup: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)
 ::::
[16118]{-1}[-1/-1] 2022-05-04 13:58:56.188064 i DaemonClient     Network.cpp(00070) : Message "stop with comment". Daemon pid 16021. Child pid 16051
[16118]{-1}[-1/-1] 2022-05-04 13:58:56.189889 f NameServer       TREXNameServer.cpp(03731) : An error occured while retrieving topology from backup: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)
 -> stopping instance ...

  • When trying to unregister a system replication site, you get the same error:

> hdbnsutil -sr_unregister
unregistering site ...
nameserver <host>:<port> not responding.
unhandled ltt exception: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)
failed. trace file <nameserver trace> may contain more error details.

  • You run into same error when trying to uninstall LSS using resident hdblcm

INFO:     Output line 8: unhandled ltt exception: exception 301102: lss exception: LSS refused connection (reason: Version mismatch)


 "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental." 


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Environment

SAP HANA, platform edition 2.0

Product

SAP HANA, platform edition 2.0

Keywords

recovery, LSS, version mismatch, LSS refused connection , KBA , HAN-DB-BAC , SAP HANA Backup & Recovery , HAN-DB-SEC , SAP HANA Security & User Management , Problem

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