RFCIO_ERROR_SYSERROR

Question

Hi All,
Having issues with RFC communication with an external system .Please refer to the log and advise on analyzing further.
Log of RFC conneciton test:
Logon - Connection Error
Error Details / CPIC-CALL: 'ThSAPOCMINIT' : cmRc=27 thRc=677 Timeout while waiting for a conn
Error Details ERROR: timeout during allocate of registered program
Error Details LOCATION: SAP-Gateway on host ****01 / sapgw*
Error Details DETAIL: TP BP_TMSS_CSI_OS_Exe init/busy for more than 20 sec
Error Details COMPONENT: SAP-Gateway
Error Details COUNTER: 113862
Error Details MODULE: gwr3cpic.c
Error Details LINE: 1937
Error Details RETURN CODE: 677
Error Details SUBRC: 0
Error Details RELEASE: 700
Error Details TIME: Fri Jan 16 21:58:13 2009
Error Details VERSION: 2
Trace file opened at 20090113 125444 EDT SAP-REL 700,0,155 RFC-VER U 3 974600
======> CPIC-CALL: 'ThSAPOCMINIT' : cmRc=27 thRc=677
Timeout while waiting for a connection to be established
ABAP Programm: SAPLZVALIDATIONS (Transaction: )
User: WF-BATCH (Client: ***)
Destination: ZTEST_RFC (handle: 4, , )
SERVER> RFC Server Session (handle: 1, 38447829, {496BED90-E4FC-4A07-E100-00000A640274})
SERVER> Caller host:
SERVER> Caller transaction code: (Caller Program: SAPLERFC)
SERVER> Called function module: ARFC_DEST_SHIP
Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 1501
CPIC-CALL: 'ThSAPOCMINIT' : cmRc=27 thRc=677
Timeout while waiting for a connection to be established
DEST =ZTEST_RFC
HOST =%%RFCSERVER%%
PROG =BP_TMSS_CSI_OS_Exe
Regards
Shiva

Answer 1

The gateway services are working fine for sap system however check the other server where the SAP is trying to communicate. The listener on the other side has some issue, either the services are not registered properly or network issue.