why ora-1555 error.

Hi All!

I have encountered ora-1555 during exp inctype=complete processing. Nothing of other oracle activity was proceeded. Then exp process was suspended by ora-1555. After then, I increase the size of rollback segments. For some time, exp process was completed normaly. But now ora-1555 is occured again.
My questions are ...

1. Why ora-1555 error is occured, nevertheless I only run exp process?
2. I could found the size estimation of rollback segment for normal transaction. How about the size estimation for processing of exp.

My system is a oracle 6.0.33 on the Unisys U6000/65 SVR4.

Any help and comments are greatly appriceated.

Thanks in Advance

Best Regads,

Kazu Yamada

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Kazushi Yamada | Nihon Unisys, Ltd. (MS:L-3B)  |


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