3330337 - SQL error -10709 performing CON

An alert reported a disruption and the syslog shows DB connection errors:

C  *** ERROR => Connect to database failed, rc=1, rcSQL=-10709
 [dbhdbsql.cpp 606]
C  {root-id=6E96FC1355E547619C5FC27FBFF3F655}_{conn-id=00000000000000000000000000000000}_0
C  SQLCODE    : -10709
C  SQLERRTEXT : Connect failed (connect timeout expired) (10.183.161.54:54896 -> xxx22v020018.xxx03.xxx.xxx.sap.corp\
C               :30250)
B  ***LOG BV3=> severe db error -10709; work process is stopped [dbsh         1319]
B  ***LOG BY2=> sql error -10709 performing CON [dblink       690]
B  ***LOG BY0=> Connect failed (connect timeout expired) (xx.xxx.xxx.xx:54896 -> xxx22v020018.xxx03.xxx.xxx.sap.corp:30250) [dblink       690]
M  ***LOG R19=> ThDbConnect, db_connect () [thxxtool.c   6072]
M  ThIErrHandle: in_ThErrHandle: 1
M  *** ERROR => ThInit: db_connect (step TH_INIT, thRc ERROR-DB-CONNECT_ERROR, action STOP_WP, level 1) [thxxhead.c   2833]
M  ThIErrHandle: set thRc ERROR-DB-CONNECT_ERROR for T122_U28007_M0
M  ThResetEmMagic: reset em magic for T122_U28007_M0_I0

SAP HANA DB Version 2.0

disruption, syslog, DB connection errors, timeout, connection 0, KBA 3112451, Hana client interface, nodeConnectTimeout, SQLDBC Connection Properties, connectTimeout, node's timeout, default value, 60 seconds, 60000 milliseconds, -10709 error , KBA , HAN-DB-CLI , SAP HANA Clients (JDBC, ODBC) , Problem