expdp报ora-21780。规避措施：expdp在运行时，请不要改变参数值
来源：步遥情感网
Solution
FIX
11.2.0.412.1
WORKAROUND
Don't change the number of parallel processes while Data Pump Export is running.
References
BUG:10198387 - DATA PUMP EXPORT REPORTS ORA-21780 WHEN PARALLELISM (PARALLEL=N) IS MODIFIED
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