backup_backup_dest_option specifies parameters related to secondary backup.
Note
This parameter is deprecated since OceanBase Database V4.0.0.
Attribute |
Description |
|---|---|
| Type | String |
| Default value | Empty string |
| Value range | N/A |
| Effective upon OBServer node restart | No |
Parameters available in backup_backup_dest_option are a subset of those in backup_dest_option. You cannot specify the backup_copies and log_archive_piece_switch_interval parameters in backup_backup_dest_option.
Example
obclient> ALTER SYSTEM SET backup_backup_dest_option='log_archive_checkpoint_interval=1h&recovery_window=14d&auto_delete_obsolete_backup=true';
where
The
log_archive_checkpoint_intervalparameter specifies the interval of secondary log backup operations when log splitting is not enabled. We recommend that you enable log splitting to start a secondary log backup.The
recovery_windowparameter specifies the time window for recovering secondary backup data. The system determines whether secondary backup data has expired based on the value of this parameter. For example,recovery_window='7d'indicates that data within the last 7 days is valid, and the secondary backup data irrelevant to the recovery of this data is considered expired.The
auto_delete_obsolete_backupparameter specifies whether to automatically clear expired secondary backup data. For example,auto_delete_obsolete_backup=truespecifies that expired secondary backup data is automatically cleared.