ALTER SYSTEM PARAMETER

ALTER SYSTEM SET parameter_name = expression;

obclient> SHOW PARAMETERS LIKE 'log_disk_utilization_threshold';
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
| zone  | svr_type | svr_ip         | svr_port | name                           | data_type | value | info                                                                                                                                 | section    | scope  | source  | edit_level        |
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
| zone1 | observer | xx.xx.xx.xx    |     2882 | log_disk_utilization_threshold | NULL      | 80    | log disk utilization threshold before reuse log files, should be smaller than log_disk_utilization_limit_threshold. Range: [10, 100) | LOGSERVICE | TENANT | DEFAULT | DYNAMIC_EFFECTIVE |
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
1 row in set

obclient> ALTER SYSTEM SET log_disk_utilization_threshold = 20;
Query OK, 0 rows affected

obclient> SHOW PARAMETERS LIKE 'log_disk_utilization_threshold';
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
| zone  | svr_type | svr_ip         | svr_port | name                           | data_type | value | info                                                                                                                                 | section    | scope  | source  | edit_level        |
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
| zone1 | observer | xx.xx.xx.xx    |     2882 | log_disk_utilization_threshold | NULL      | 20    | log disk utilization threshold before reuse log files, should be smaller than log_disk_utilization_limit_threshold. Range: [10, 100) | LOGSERVICE | TENANT | DEFAULT | DYNAMIC_EFFECTIVE |
+-------+----------+----------------+----------+--------------------------------+-----------+-------+--------------------------------------------------------------------------------------------------------------------------------------+------------+--------+---------+-------------------+
1 row in set