RMAN delete backup hangs
Backup of database(500GB) on Oracle 12.2.0.1 takes approx 3 hours in scheduled cronjob while RMAN delete of backupiece hangs.
RMAN debug trace shows consistently
krmxpoq - returning rpc_number: 20 with status: STARTED62 for channel ORA_DISK_1
DBGRPC: ENTERED krmqgns
DBGRPC: krmqgns: looking for work for channel default (krmqgns)
DBGRPC: krmqgns: commands remaining to be executed: (krmqgns)
DBGRPC: CMD type=delete cmdid=1 status=STARTED
DBGRPC: 1 STEPstepid=1 cmdid=1 status=STARTED chid=ORA_DISK_1
DBGRPC: krmqgns: no work found for channel default (krmqgns)
DBGRPC: (krmqgns)
DBGRPC: EXITED krmqgns with status 1