The error 12592 means that the information provided was not acceptable to the TWO-TASK layer. It can occur if the data itself is not valid OR if the packet is in fact corrupt from the Oracle Net (SQL*Net) layer.
检查导出日志是否存在错误提示。试试将dmp文件拷到要导入的数据库服务器上来进行导入,绕开网络,看看是否还报错
如果问题还不能解决,检查数据是否有问题
12593, 00000, "TNS:no registered connection"
// *Cause: An attempt to solicit network event activity has failed because
// no connections are registered for event notification.
// *Action: Not normally visible to the user. For further details, turn
// on tracing and reexecute the operation. If error persists, contact
// Oracle Customer Support.
貌似根连接有关~