CALL_FUNCTION_WAIT_ERROR

Question

I am calling custome developed RFC functions from Java application daily.  This is automated process.  We are using these functions for the last few months. No issues reported. But on 05/22/2007 when a call is made to these RFC, one RFC has thrown the following error.  Please let me know if the error is in the function module coding / data problem or in RFC call. Is this fix is to be takenup by the ABAP developer?  What action to be taken to fix the issue. This issue was not reported again.  on 05/23/2007 also RFC are called and it is successful.  Please let me know how to handle this if again I encounter this kind of problem.
The following is the Short dump.
ABAP runtime errors    CALL_FUNCTION_WAIT_ERROR     
       Occurred on     05/22/2007 at 16:43:08
Error when waiting for reply to Remote Function Call.                         
What happened?
"connection closed"                                                                               
An error occurred when executing a Remote Function Call.
Error analysis
An error occurred when executing a Remote Function Call.                                                                               
"connection closed"                                                                               
Status of connection.... "CODE=CM_DEALLOCATED_NORMAL CM_SEND_RECEIVED         
CM_COMPLETE_DATA_RECEIVED SAPCODE=0 CONV=89797100"                           
Internal error code.... "RFC_IO5"                                                                               
There is an error in the communication system. To clarify                     
and resolve the error, contact your system administrator.
Information on where termination occurred
The termination occurred in the ABAP/4 program "SAPMSSY1 " in                 
"REMOTE_FUNCTION_CALL".                                                       
The main program was "SAPMSSY1 ".                                                                               
The termination occurred in line 69                                           
of the source code of program "SAPMSSY1 " (when calling the editor 690).
Source code extract
000650   FORM REMOTE_FUNCTION_CALL USING VALUE(TYPE).                           
000660     DO.                                                                  
000670       CALL 'RfcImport' ID 'Type' FIELD TYPE.                             
000680       PERFORM (SY-XFORM) IN PROGRAM (SY-XPROG).                          
>       RSYN >SCONT SYSC 00011111 0.                                       
000700     ENDDO.                                                               
000710   ENDFORM.
It will be very helpful if someone can provide a suggetion or detailed information on this.  I dont have access to OSS or SAP service notes.   We are Java developers.  We have no SAP in my organization. The issue is reported in my customers SAP system.
Thanks
Sarma

Answer 1

Hi Sarma,
The runtime error CALL_FUNCTION_WAIT_ERROR is logged on the receiving side of the RFC communication if the RFC connection to the sending program was unexpectedly terminated.
If the error only arises within the asynchronous RFC without response, you can correct this error with the kernel patch.
If it only arises within the asynchronous RFCs with response, this error may be caused by the fact that the caller program does not fetch the answers from ALL pending asynchronous RFCs before scheduling.
Hope this is useful
Reagrds
Umesh