Solution : https://service.sap.com/sap/support/notes/1623274 (SAP Service marketplace login required)
Key words :
sap xi/xpi af core service, <port> /adapterframework/ scheduler/scheduler, scheduled job stops executing, mail sender communication channel, configured poll interval, scheduler status page, terminated preliminarily due, mail adapter reason, specific server node, server node restart
Related Notes :
1593415 | AF Scheduler - fixes related to relocation mode |
1355715 | AF Scheduler to avoid using cluster communication |