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2317074 - "timeout during allocate" when starting external programs

Symptom

An external program is to be started by SAP through an RFC destination (transaction SM59) of type "TCP/IP".

Performing a "connection test" in such destination returns a "timeout during allocate" error similar to the below.

Connection Test <destination name>
Connection Type TCP/IP Connection  

Logon           Connection Error
Error Details   Error when opening an RFC connection
Error Details   ERROR: timeout during allocate
Error Details   LOCATION: SAP-Gateway on host <hostname> / sapgw<XX>
Error Details   DETAIL: no connect of TP <external program> from host <hostname>
Error Details   COMPONENT: SAP-Gateway
Error Details   COUNTER: 2
Error Details   MODULE: gwr3cpic.c
Error Details   LINE: 2164
Error Details   RETURN CODE: 242
Error Details   SUBRC: 0
Error Details   RELEASE: 721
Error Details   TIME: <date and time>
Error Details   VERSION: 2

This can occur, for example:

  • When performing transport operations (transaction STMS, destination "CALLTP_<Operating System>");
  • Executing tasks at the transaction DB13 (that use the destination "SAPXPG_DBDEST_<hostname>").

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Environment

  • Product / Release independent
  • SAP NetWeaver ABAP

Product

SAP NetWeaver all versions

Keywords

Timeout during allocate, Timeout, TP, Brconnect, External program, Start external program, Sapxpg, SM59, Connection test, TCP/IP connection, TCP/IP destination, RFC destination, SM59 destination, STMS, DB13 , KBA , BC-MID-RFC , RFC , BC-DB-ORA , Oracle , BC-CST , Client/Server Technology , BC-CST-GW , Gateway/CPIC , BC-CTS-TMS , Transport Management System , BC-CTS , Change and Transport System , How To

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