Note
- Due to the architecture optimization of the physical backup and restore feature in OceanBase Database V4.x, this parameter has been deprecated since OceanBase Database V4.0.0.
- OceanBase Database V4.x provides the following three high availability (HA) parameters, each corresponding to specific task types, based on the task priority and significance:
ha_high_thread_scorespecifies the number of worker threads for high-availability high-priority tasks such as replication, rebuild, and restore tasks. For more information about the tenant-level parameterha_high_thread_score, see ha_high_thread_score.ha_mid_thread_scorespecifies the number of worker threads for high-availability medium-priority tasks such as migration tasks. For more information about the tenant-level parameterha_mid_thread_score, see ha_mid_thread_score.ha_low_thread_scorespecifies the number of worker threads for high-availability low-priority tasks such as backup and backup cleanup tasks. For more information about the tenant-level parameterha_low_thread_score, see ha_low_thread_score.
backup_concurrency specifies the concurrency of data writes to the file system during backup.
| Attribute | Description |
|---|---|
| Type | Integer |
| Default value | 0 |
| Value range | [0, 100] |
| Effective upon OBServer node restart | No |