Solution : https://service.sap.com/sap/support/notes/620633 (SAP Service marketplace login required)
Key words :
sap exchange infrastructure hang, qrfc inbound queues, qrfc requests, inbound queue, running status, qin scheduler, mapping tool, sxms_async_exec reason, prerequisites due, xi application
Related Notes :
1118297 | XI runtime: QRFC processing of messages |
615024 | Mapping tool looses values sometimes |