enqt -u Identify the PID from SM50 (if accessible) or dev_disp . Then:
sapcontrol -nr 00 -function RestartService This forces the dispatcher to reevaluate work processes. In many cases, the “free” resources are then correctly allocated. If the enqueue server is the culprit, use SM12 to delete all outdated locks. If SM12 is unresponsive, run the report RSSNAPI via command line (requires SAP kernel access): ewprod hanging free
The RFC was wrapped with a timeout ( CALL FUNCTION ... DESTINATION ... TIMEOUT = 30 ). A cleanup job was added to kill orphaned RFC handles every hour. After the change, EWPROD returned to normal and the “hanging free” alert never recurred. Conclusion The “EWPROD hanging free” state is one of SAP’s most deceptive performance anomalies. It contradicts intuition—a frozen system with ample resources—and requires methodical diagnosis that bridges SAP application logic with operating system realities. enqt -u Identify the PID from SM50 (if