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Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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# FAST_START_PARALLEL_ROLLBACK

Property | Description
--- | ---
Parameter type | String
Syntax | `FAST_START_PARALLEL_ROLLBACK = { HI | LO | FALSE }`
Default value | `LOW`
Modifiable | `ALTER SYSTEM`
Basic | No

`FAST_START_PARALLEL_ROLLBACK` determines the maximum number of processes that can exist for performing parallel rollback. This parameter is useful on systems in which some or all of the transactions are long running.

Values:

- `FALSE` indicates that parallel rollback is disabled

- `LOW` limits the number of rollback processes to 2 * `CPU_COUNT`

- `HIGH` limits the number of rollback processes to 4 * `CPU_COUNT`