Solution : https://service.sap.com/sap/support/notes/1391642 (SAP Service marketplace login required)
Key words :
exe arguments= startdir=${sap_retrieval_path} instances=1 environment=rfc_trace_dir=${sap_retrieval_path}/trace, /usr/sap/sid/trx00/<hostname>/trace, cpic_trace=2 stdout=${sap_retrieval_path}/trace/trexrfcserver$, default trex/bwa trace directories, cpic_trace_dir=${sap_retrieval_path}/trace, trex/bwa landscape, cpic trace level>, cpic trace level, cpic trace files, [rfcserver] executable=trexrfcserver2
Related Notes :
| 47682 | Activating the CPIC trace |