[oracle@easdb2 ~]$ expdp \'/ as sysdba\' directory=OABAK dumpfile=oabak.dmp full=y

Export: Release 19.0.0.0.0 - Production on Wed Feb 23 14:07:40 2022

Version 19.13.0.0.0

Copyright (c) 1982, 2021, Oracle and/or its affiliates.  All rights reserved.

Password:

Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production

ORA-31626: job does not exist

ORA-31638: cannot attach to job SYS_EXPORT_FULL_01 for user SYS

ORA-06512: at "SYS.KUPV$FT", line 1142

ORA-06512: at "SYS.KUPV$FT", line 1744

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95

ORA-06512: at "SYS.KUPV$FT_INT", line 498

ORA-39077: unable to subscribe agent KUPC$A_2_140743776185000 to queue "KUPC$C_2_20220223140742_0"

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95

ORA-06512: at "SYS.KUPC$QUE_INT", line 294

ORA-01001: invalid cursor

ORA-06512: at "SYS.DBMS_AQADM_SYS", line 9306

ORA-06512: at "SYS.DBMS_PRVTAQIS", line 1420

ORA-06512: at "SYS.DBMS_AQADM_SYS", line 9900

ORA-06512: at "SYS.DBMS_AQADM_SYS", line 9269

ORA-06512: at "SYS.DBMS_AQADM", line 881

ORA-06512: at "SYS.KUPC$QUE_INT", line 267

ORA-06512: at "SYS.KUPC$QUE_INT", line 1360

ORA-06512: at line 1

ORA-06512: at "SYS.KUPC$QUEUE_INT", line 65

ORA-06512: at "SYS.KUPV$FT_INT", line 465

ORA-06512: at "SYS.KUPV$FT", line 1664

ORA-06512: at "SYS.KUPV$FT", line 1103

RAC环境，一台机器执行要报这个错，另一台机器不报错，最后是报错得机器补丁卸载，再应用一次补丁即可。