Originally posted by Calvin_Qiu
It seems that user ORACLE on host MPPISS1 has stopped it at 2:00 AM. Is it a scheduled job? Check it out.

You might establish a password to secure the listner using the Listner Control utility CHANGE_PASSWORD command.
dear Calvin_Qiu :

I have check the scheduled job ,it isn't a scheduled job ?
I can't find the reason now!

Thanks
joyloce