Note
This view is introduced since OceanBase Database V4.2.2.
Purpose
The oceanbase.CDB_WR_SYS_TIME_MODEL view displays the workload repository (WR) data of the time model statistical item of all tenants.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| CLUSTER_ID | bigint(20) | No | The ID of the cluster. |
| TENANT_ID | bigint(20) | No | The ID of the tenant. |
| SNAP_ID | bigint(20) | No | The ID of the snapshot. |
| SVR_IP | varchar(46) | No | The IP address of the server. |
| SVR_PORT | bigint(20) | No | The port number of the server. |
| STAT_ID | bigint(20) | No | The ID of the statistical item. |
| STAT_NAME | varchar(64) | No | The name of the statistical item. |
| VALUE | bigint(20) | No | The value of the statistical item. |
The following table describes the name and ID of the statistical event in the STAT_NAME column of the view.
| Event name | Description | Event ID | Event class |
|---|---|---|---|
| DB time | The total duration of database activities, which is the sum of the CPU time and non-idle wait time. | 200001 | 3072 |
| DB CPU | The CPU time consumed for database activities. | 200002 | 3072 |
| background elapsed time | The total execution time of background processes. | 200005 | 3072 |
| background cpu time | The CPU time consumed by background processes. | 200006 | 3072 |
| non idle wait time | The total duration of non-idle waits, when the session was waiting but not idle. | 200010 | 3072 |
| idle wait time | The total duration of idle waits, when the session was waiting in idleness. | 200011 | 3072 |
| background database time | The total duration of database operations performed by background processes. | 200012 | 3072 |
| background database non-idle wait time | The total waiting duration of background processes for performing database operation tasks in the non-idle state. | 200013 | 3072 |
| background database idle wait time | The total waiting duration of background processes for performing database operation tasks in the idle state. | 200014 | 3072 |
| concurrency wait total time | The total duration of the wait event caused by concurrency issues, such as the waiting duration for resource locks. | 220001 | 3072 |
| user io wait total time | The total time a user process waits for an I/O operation, such as the data write to or data read from a disk, to complete. | 220002 | 3072 |
| application wait total time | The total duration of waits caused by the user application code, caused by user application code, such as a lock wait event caused by a row lock or by an explicit lock command. | 2200013 | 3072 |
Example
obclient [oceanbase]> SELECT * FROM oceanbase.CDB_WR_SYS_TIME_MODEL LIMIT 10;
The query result is as follows:
+------------+-----------+---------+----------------+----------+---------+-------------------------+-----------+
| CLUSTER_ID | TENANT_ID | SNAP_ID | SVR_IP | SVR_PORT | STAT_ID | STAT_NAME | VALUE |
+------------+-----------+---------+----------------+----------+---------+-------------------------+-----------+
| 10001 | 1002 | 2 | 172.xx.xxx.xxx | 2882 | 200001 | DB time | 34505 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200001 | DB time | 34505 |
| 10001 | 1002 | 2 | 172.xx.xxx.xxx | 2882 | 200002 | DB CPU | 1966 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200002 | DB CPU | 1966 |
| 10001 | 1002 | 2 | 172.xx.xxx.xxx | 2882 | 200005 | background elapsed time | 233110335 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200005 | background elapsed time | 116267272 |
| 10001 | 1002 | 2 | 172.xx.xxx.xxx | 2882 | 200006 | background cpu time | 209738761 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200006 | background cpu time | 104674501 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 32539 |
| 10001 | 1002 | 1 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
+------------+-----------+---------+----------------+----------+---------+-------------------------+-----------+
10 rows in set
