Note
This view is available starting with V4.2.0.
Purpose
The DBA_OB_BALANCE_JOBS view displays the load balancing jobs currently running in the current tenant. At any given time, a tenant can have only one load balancing job running. Each load balancing job generates multiple load balancing tasks to perform the specific load balancing operations.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| JOB_ID | NUMBER(38) | NO | The ID of the load balancing job. |
| CREATE_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | The time when the job was created. |
| MODIFY_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | The time when the information was last updated. |
| BALANCE_STRATEGY | VARCHAR2(64) | NO | The name of the balancing strategy.
|
| JOB_TYPE | VARCHAR2(64) | NO | The type of the task.
|
| TARGET_UNIT_NUM | NUMBER(38) | NO | The number of units to be changed in each zone. |
| TARGET_PRIMARY_ZONE_NUM | NUMBER(38) | NO | The number of primary zones to be changed. |
| STATUS | VARCHAR2(64) | NO | The status of the task.
|
| COMMENT | longtext | YES | The comment. |
| COMMENT | CLOB | YES | The comment. |
| MAX_END_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | YES | The maximum end time of the load balancing task.
NoteThis column is available starting with V4.2.4. |
Sample query
Query the load balancing jobs currently running in the current tenant.
obclient [SYS]> SELECT * FROM SYS.DBA_OB_BALANCE_JOBS;
The query result is as follows:
+--------+----------------------------+----------------------------+---------------------------+--------------------+-----------------+-------------------------+--------+---------+--------------+
| JOB_ID | CREATE_TIME | MODIFY_TIME | BALANCE_STRATEGY | JOB_TYPE | TARGET_UNIT_NUM | TARGET_PRIMARY_ZONE_NUM | STATUS | COMMENT | MAX_END_TIME |
+--------+----------------------------+----------------------------+---------------------------+--------------------+-----------------+-------------------------+--------+---------+--------------+
| 68710 | 2024-12-31 18:24:16.758260 | 2024-12-31 18:24:16.758260 | manual transfer partition | TRANSFER_PARTITION | 3 | 1 | DOING | NULL | NULL |
+--------+----------------------------+----------------------------+---------------------------+--------------------+-----------------+-------------------------+--------+---------+--------------+
1 row in set
References
To view the history of load balancing jobs at the log stream level in the current tenant, see DBA_OB_BALANCE_JOB_HISTORY.
To view the load balancing tasks at the log stream level in the current tenant, see:
To view the load balancing tasks at the tablet level in the current tenant, see:
To view the transfer partition tasks in the current tenant, see:
For more information about data load balancing, see Data load balancing.