Symptom
When an RFC connection uses Message Server with Load Balancing enabled, the following error is raised in the corresponding RFC-trace file (dev_rfc*) in the work directory (/usr/sap/<SYS>/<instance name>/work):
Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 2827 LB: Hostname or service of the message server unknown DEST =XXXXX MSHOST =XXXXXXXX R3NAME =XXX GROUP =XXX ABAP Programm: xxxxxx (Transaction: ) User: XXXXX (Client: 001) Destination: XXXXX (Handle: 2, DtConId: 00000000000000000000000000000000, DtConCnt: 0, ConvId: ,) XXX RootContextId: XXX568D6568XXXXX187DCD15XXXXX09, ConnectionId: 00000000000000000000000000000000, ConnectionCnt: 0 XXX TransactionId: 2B3FXXXXX1B2F1D78C09005056XXXXX |
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Environment
- Operating System independent
- Database independent
- SAP NetWeaver
- SAP Web Application Server for SAP S/4HANA
- ABAP Platform
Product
Keywords
Error when opening an RFC connection, LB: Hostname or service of the message server unknown, service '?' unknown, Service sapms<sid> unknown, SM59, /etc/services, %windir%\System32\drivers\etc\services, dev_rfc, /usr/sap/<SYS>/<instance name>/work, Connection Test, SAPOSS, SAP-OSS , KBA , BC-CST-LG , Logon group based load balancing , BC-MID-RFC , RFC , Problem
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