Symptom
The issue starts happening without a clear indication of why, and the issue goes away after some time (varying between a few and several minutes).
Different symptoms are observed while the issue is happening:
- CALL_FUNCTION_OPEN_ERROR dumps are raised for connections being opened to the instance itself (e.g., destination "NONE").
- At SM50, it can be observed that work processes stay "on hold" with reason "RFC" for several seconds.
When double clicking on the work process, the "Wait Info" field shows "CMINIT".
- The RFC Gateway trace file (dev_rd) shows entries similar to the following:
*****************************************************************************
*
* LOCATION SAP-Gateway on host [SAP hostname] /
* sapgwXX
* ERROR timeout during allocate
*
* TIME [date and time]
* RELEASE 789
* COMPONENT SAP-Gateway
* VERSION 2
* RC 242
* MODULE /bas/789_REL/src/krn/si/gw/gwr3cpic.c
* LINE 2264
* DETAIL no connect of TP sapdpXX from host [SAP hostname] after 60 sec
* COUNTER 28108
*
*****************************************************************************
- At the transaction SMGW (initial screen), connections to the destination "NONE" stay on "connection pending" state for a long time.
- A level 2 trace of the RFC Gateway reveals that the connection attempt is being made using an incorrect IP address.
NiHLGetNodeAddr: get addr for hostname '[SAP hostname]' (mode=0)
NiHLGetNodeAddr: found hostname '[SAP hostname]' in cache (valid-address/name)
NiIGetNodeAddr: hostname '[SAP hostname]' = addr [wrong IP address]
R3INIT: generated Partner-Host-Addr: [wrong IP address]
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Environment
- ABAP Platform based system
- SAP NetWeaver ABAP based system
Product
ABAP platform all versions ; SAP NetWeaver all versions
Keywords
Connection pending, CALL_FUNCTION_OPEN_ERROR, GW_TIMEOUT , KBA , BC-CST-GW , Gateway/CPIC , BC-CST , Client/Server Technology , Problem
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