Solution : https://service.sap.com/sap/support/notes/961154 (SAP Service marketplace login required)
Key words :
prerequisites sql statements, scheduler inconsistently activates, attached correction instructions, db2 database systems, parallel db2 database, qrfc outbound luws, db2 reason, qrfc table, qrfc tables, inbound luw
Related Notes :
1051445 | qRFC scheduler does not use all available resources |