| 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