R12.2 ADZDWRKR.sql Is Running On 8 Workers For Long Time

Sol:
SQL> show parameter max_dump_file_size
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
max_dump_file_size string 20480
2) Inscreasing the max_dump_file_size
     a- Change the max_dump_file_size = unlimited
     b- Restart the Database
     c- Rerun adop session