ORA-30926 while using impdp over a database link

 
 Starting "SYS_PYTHIAN"."SYS_IMPORT_TABLE_03": sys_pythian/******** parfile=table_import.par 
 Processing object type TABLE_EXPORT/TABLE/TABLE
 Processing object type TABLE_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
 Processing object type TABLE_EXPORT/TABLE/COMMENT
 Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
 Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
 Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
 Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
 Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
 Processing object type TABLE_EXPORT/TABLE/STATISTICS/MARKER
 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.STATS_LOAD [MARKER] 
 MARKER
 ORA-30926: unable to get a stable set of rows in the source tables
 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 105
 ORA-06512: at "SYS.KUPW$WORKER", line 11265
 ----- PL/SQL Call Stack -----
  object line object
  handle number name
 0x12f199188 27116 package body SYS.KUPW$WORKER
 0x12f199188 11286 package body SYS.KUPW$WORKER
 0x12f199188 24286 package body SYS.KUPW$WORKER
 0x12f199188 24415 package body SYS.KUPW$WORKER
 0x12f199188 20692 package body SYS.KUPW$WORKER
 0x12f199188 10206 package body SYS.KUPW$WORKER
 0x12f199188 13381 package body SYS.KUPW$WORKER
 0x12f199188 3173 package body SYS.KUPW$WORKER
 0x12f199188 12035 package body SYS.KUPW$WORKER
 0x12f199188 2081 package body SYS.KUPW$WORKER
 0x12ffe7908 2 anonymous block
 In STATS_UNLOAD
 DBMS_STATS.EXPORT_STATS_FOR_DP
 DBMS_STATS.EXPORT_STATS_FOR_DP
 In STATS_LOAD with process_order 39
 Fixing up the name in the impdp stat table
 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.STATS_LOAD [MARKER] 
 ORA-30926: unable to get a stable set of rows in the source tables
 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95
 ORA-06512: at "SYS.KUPW$WORKER", line 11259
 ----- PL/SQL Call Stack -----
  object line object
  handle number name
 0x6fc030c8 27116 package body SYS.KUPW$WORKER
 0x6fc030c8 11286 package body SYS.KUPW$WORKER
 0x6fc030c8 24286 package body SYS.KUPW$WORKER
 0x6fc030c8 24415 package body SYS.KUPW$WORKER
 0x6fc030c8 10105 package body SYS.KUPW$WORKER
 0x6fc030c8 13381 package body SYS.KUPW$WORKER
 0x6fc030c8 3173 package body SYS.KUPW$WORKER
 0x6fc030c8 12035 package body SYS.KUPW$WORKER
 0x6fc030c8 2081 package body SYS.KUPW$WORKER
 0x134b42cf8 2 anonymous block
 In STATS_UNLOAD
 DBMS_STATS.EXPORT_STATS_FOR_DP
 DBMS_STATS.EXPORT_STATS_FOR_DP
 In STATS_LOAD with process_order 39
 Fixing up the name in the impdp stat table
 Job "SYS_PYTHIAN"."SYS_IMPORT_TABLE_03" stopped due to fatal error at Thu Jan 19 13:47:30 2017 elapsed 0 00:01:58
 
 

 
 SQL> SELECT comp_id, status, SUBSTR(version,1,10) version, comp_name 
 FROM dba_registry ORDER BY 1;
 
 COMP_ID STATUS VERSION COMP_NAME
 ------------------------------ ----------- ---------- --------------------------------------------
 
 CATALOG VALID 12.1.0.2.0 Oracle Database Catalog Views
 
 CATPROC VALID 12.1.0.2.0 Oracle Database Packages and Types
 
 XDB VALID 12.1.0.2.0 Oracle XML Database
 
 SQL> select * 
 FROM SYS.EXPPKGACT$ 
 WHERE PACKAGE = 'DBMS_CUBE_EXP' AND SCHEMA= 'SYS';
 
 PACKAGE SCHEMA CLASS LEVEL#
 
 ----------------- ---------- ---------- ----------
 DBMS_CUBE_EXP SYS 4 1050
 
 SQL> select PACKAGE, SCHEMA, class from exppkgact$ where (schema, package) 
 not in 
 (select owner, object_name 
 from dba_objects 
 where object_type='PACKAGE');
 
 PACKAGE SCHEMA CLASS
 -------------------------- ---------- ---------- 
 DBMS_CUBE_EXP SYS 4
 
 SQL> create table exppkgact$_bck as select * from exppkgact$;
 
 Table created.
 
 SQL> delete from exppkgact$ where package = 'DBMS_CUBE_EXP' and schema = 'SYS';
 
 1 row deleted.
 
 SQL> commit;
 
 Commit complete.
 
 

 [oracle@ ~ ]$ cat table_import.par
 tables=TEST.TEST_TABLE
 directory=export_dir_pythian 
 logfile=impdp.log
 network_link=PYTHIAN
 TABLE_EXISTS_ACTION=replace
 EXCLUDE=STATISTICS
 STATUS=120
 
 [oracle@ ~ ]$ cat impdp.log
 ;;; 
 Import: Release 12.1.0.2.0 - Production on Thu Jan 19 13:49:57 2017
 
 Copyright (c) 1982, 2014, Oracle and/or its affiliates. All rights reserved.
 ;;; 
 Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
 With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
 Advanced Analytics and Real Application Testing options
 Starting "SYS_PYTHIAN"."SYS_IMPORT_TABLE_04": sys_pythian/******** parfile=table_import.par 
 Processing object type TABLE_EXPORT/TABLE/TABLE
 Processing object type TABLE_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
 Processing object type TABLE_EXPORT/TABLE/COMMENT
 Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
 Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
 Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
 . . imported "TEST"."TEST_TABLE" 222224 rows
 Job "SYS_PYTHIAN"."SYS_IMPORT_TABLE_04" successfully completed at Thu Jan 19 13:50:07 2017 elapsed 0 00:00:07
 

Conclusion