expdp 错误信息ORA-01555:

报错日志：

ORA-31693: Table data object "ZMINFO"."BONDBASEINFO" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-01555: snapshot too old: rollback segment number 10 with name "_SYSSMU10$" too small
ORA-31693: Table data object "ZMINFO"."ANNOUNMT" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-01555: snapshot too old: rollback segment number 9 with name "_SYSSMU9$" too small
. . exported "ZMINFO"."BYIELDCURVE"                      45.40 GB 472827729 rows
. . exported "ZMINFO"."ISSWEIGHT"                        37.97 GB 347057094 rows
ORA-31693: Table data object "ZMINFO"."FINFO" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-01555: snapshot too old: rollback segment number 10 with name "_SYSSMU10$" too small
. . exported "ZMINFO"."BESTIMATE"                        12.98 GB 89206815 rows

解决方法：

调大 RETENTION 

SQL> ALTER SYSTEM SET UNDO_RETENTION = 3600 scope=both;