RE: snapshot too old

From: Suhen Pather <Suhen.Pather_at_strandbags.com.au>
Date: Wed, 16 Jan 2002 15:28:35 -0800
Message-ID: <F001.003F20FA.20020116145531@fatcity.com>

Seema,

The "ORA-1555 snapshot too old" occurs when export tries to construct a read consistent view of your data from rollback segments, which has been overwritten or reused for new transactions.

Other sessions are updating data while the export is running in consistent mode (using consistent = Y)

To avoid the ORA-1555
- use consistent=N (default)

use larger rollback segments
increase the number of rollback segments
do exports during quieter periods ie. when not many users are manipulating data

Regards
$uhen

Hi
At time of export i am getting following error "EXP-00008: ORACLE error 1555 encountered ORA-01555: snapshot too old: rollback segment number 6 with name "R03" too small"

Please suggest
Thanks
-Seema

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Author: Suhen Pather
INET: Suhen.Pather_at_strandbags.com.au

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San Diego, California        -- Public Internet access / Mailing Lists


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