2860727 - RS stack tracing infected with signal 11 in "dsi_hq_srvlang_hdl()" - SRS

• Connection lost that make DSI not cleaning (freeing) CDB context:

E. 2019/11/07 00:04:23. ERROR #1027 DSI EXEC(834(1) <SERVER_NAME>.<DB_NAME>) - /dsiutil.c(390)
Open Client Client-Library error: Error: 16843058, Severity 1 -- 'ct_command(): user api layer: external error: The connection has been marked dead.'.
E. 2019/11/07 00:04:23. ERROR #5215 DSI EXEC(834(1) <SERVER_NAME>.<DB_NAME>) - /dsiutil.c(393)
The interface function 'SQLPrepare' returns FAIL for database '<SERVER_NAME>.<DB_NAME>'. The errors are retryable. The DSI thread will restart automatically. See messages from the interface function for more information.
E. 2019/11/07 00:06:24. ERROR #1027 DSI(834 <SERVER_NAME>.<DB_NAME>) - seful/cm.c(5266)
Open Client Client-Library error: Error: 84083972, Severity 5 -- 'ct_connect(): network packet layer: internal net library error: Net-Lib protocol driver call to connect two endpoints failed', Operating System error 22 -- 'Socket connect failed - errno 22 Invalid argument'.
E. 2019/11/07 00:06:24. ERROR #13045 DSI(834 <SERVER_NAME>.<DB_NAME>) - seful/cm.c(5271)
Failed to connect to server 'ZAFFARI_DW_1' as user 'ZAFNFCE_maint'. See CT-Lib and/or server error messages for more information.
.
.
.
E. 2019/11/07 09:20:16. ERROR #1028 DSI EXEC(834(1) <SERVER_NAME>.<DB_NAME>) - dsiqmint.c(4391)
 Message from server: Message: -1003005, State 0, Severity 14 -- 'SQL Anywhere Error -1003005: Connectivity libraries cannot be found (check your dynamic library search path).  Selects from attached databases are not possible without these libraries. 
-- (hqmlib/hqm_cpm.cxx .

• RS thread stack tracing in "dsi_hq_srvlang_hdl()"

T. 2019/11/09 12:26:50. (343): Thread USER(<USER_NAME>_maint) infected with signal 11.
T. 2019/11/09 12:26:50. (343): Dumping memory trace.
T. 2019/11/09 12:26:50. (343): ***************STACK TRACE***************
T. 2019/11/09 12:26:50. (343): *****thread USER(<USER_NAME>_maint)*******

dbg_dump_stack
exc__appDumpStack
exc_terminate
bsd_catch_signal
---- Signal 11 (SIGSEGV) delivered ----
dsi_hq_srvlang_hdl
_ex_process_cmds
_ex_process_lang
ex_lang_handler
srv__exechandler
srv__runclient
srv__connhandle
srv__start_function

T. 2019/11/09 12:26:50. (343): *****End of stack trace.****
T. 2019/11/09 12:26:50. (343): Internal error. Attempting to produce a core file.

• SAP Replication Server (SRS) 15.6.X
• SAP Replication Server (SRS) 15.7.1 ESD#1
• SAP Replication Server (SRS) 15.7.1 ESD#2

CR 724534,  CR724534, CR#724534, dsi_hq_srvlang_hdl, infected, signal 11 , KBA , BC-SYB-REP , Sybase Replication Server (standalone) , Bug Filed