3412920 - HANA DB is down without receiving any signals

HANA went down all of sudden, when check HANA log files, there isn't any error or signal like below.

indexserver_<host>.<port>.<num>.trc:
2023-10-30 22:46:36.352560 i Savepoint        SavepointImpl.cpp(03049) : Savepoint current savepoint version...
2023-10-31 10:21:39.750368 i Basis            TraceStream.cpp(00718) : ==== Starting hdbindexserver, version <version_info>...

nameserver_<host>.<port>.<num>.trc：
2023-10-30 22:47:33.972308 i Savepoint        SavepointImpl.cpp(03049) : Savepoint current savepoint version...
2023-10-31 10:20:40.806315 i Basis            TraceStream.cpp(00718) : ==== Starting hdbnameserver, version <version_info>...

daemon_<host>.<port>.<num>.trc：
2023-10-30 15:01:46.777096 i Daemon           DaemonLoop.cpp(00231) : Leaving wait state with return code "WAITCHILD_TIMEOUT"
2023-10-30 19:01:57.570741 i Daemon           DaemonLoop.cpp(00231) : Leaving wait state with return code "WAITCHILD_TIMEOUT"
2023-10-31 10:20:34.758170 i Basis            Timer.cpp(00899) : Usage of system timer is forced because 'HDB_TIMER' environment is set to 'system'.
2023-10-31 10:20:34.758179 i Memory           mmProtectionKeys.cpp(00050) : ProtectionKeys disabled
2023-10-31 10:20:34.758165 i Basis            TraceStream.cpp(00718) : ==== Starting...

• SAP HANA Platform Edition 1.0
• SAP HANA Platform Edition 2.0

HANA went down, shutdown, stop, unavailable , KBA , HAN-DB , SAP HANA Database , Problem