Note
- For OceanBase Database V4.3.x, this view is introduced in V4.3.5.
- For OceanBase Database V4.2.x, this view is introduced in V4.2.2.
Purpose
The DBA_WR_SYS_TIME_MODEL view displays the WR data of the time model statistics for the tenant.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| SNAP_ID | bigint(20) | NO | Snapshot ID |
| SVR_IP | varchar(46) | NO | Node IP |
| SVR_PORT | bigint(20) | NO | Node port |
| STAT_ID | bigint(20) | NO | Statistics ID |
| STAT_NAME | varchar(64) | NO | Statistics name |
| VALUE | bigint(20) | NO | Statistics value |
The following table describes the statistics events and their corresponding statistics IDs in the STAT_NAME column of the view.
| Statistics event | Description | Statistics ID | Statistics category |
|---|---|---|---|
| DB time | Total time of database activities, which is the sum of CPU time and non-idle wait time. | 200001 | 3072 |
| DB CPU | CPU time of database activities. | 200002 | 3072 |
| background elapsed time | Total time of background process execution. | 200005 | 3072 |
| background cpu time | CPU time of background processes. | 200006 | 3072 |
| non idle wait time | Total time of non-idle waits, which is the total time of sessions in wait states other than idle wait states. | 200010 | 3072 |
| idle wait time | Total time of idle waits, which is the total time of sessions in idle wait states. | 200011 | 3072 |
| background database time | Total time of database operations executed by background processes. | 200012 | 3072 |
| background database non-idle wait time | Total time of database operations executed by background processes in non-idle wait states. | 200013 | 3072 |
| background database idle wait time | Total time of database operations executed by background processes in idle wait states. | 200014 | 3072 |
| concurrency wait total time | Total wait time due to concurrency issues, such as wait time due to resource locking. | 220001 | 3072 |
| user io wait total time | Total wait time of user processes waiting for I/O operations (such as data reads and writes to disk) to complete. | 220002 | 3072 |
| application wait total time | Total wait time due to user application code, such as wait time due to row-level locking or explicit lock commands. | 2200013 | 3072 |
Sample query
obclient [oceanbase]> SELECT * FROM oceanbase.DBA_WR_SYS_TIME_MODEL LIMIT 10;
The query result is as follows:
+---------+----------------+----------+---------+-------------------------+-----------+
| SNAP_ID | SVR_IP | SVR_PORT | STAT_ID | STAT_NAME | VALUE |
+---------+----------------+----------+---------+-------------------------+-----------+
| 2 | 172.xx.xxx.xxx | 2882 | 200001 | DB time | 34505 |
| 1 | 172.xx.xxx.xxx | 2882 | 200001 | DB time | 34505 |
| 2 | 172.xx.xxx.xxx | 2882 | 200002 | DB CPU | 1966 |
| 1 | 172.xx.xxx.xxx | 2882 | 200002 | DB CPU | 1966 |
| 2 | 172.xx.xxx.xxx | 2882 | 200005 | background elapsed time | 233110335 |
| 1 | 172.xx.xxx.xxx | 2882 | 200005 | background elapsed time | 116267272 |
| 2 | 172.xx.xxx.xxx | 2882 | 200006 | background cpu time | 209738761 |
| 1 | 172.xx.xxx.xxx | 2882 | 200006 | background cpu time | 104674501 |
| 1 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 32539 |
| 1 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
+---------+----------------+----------+---------+-------------------------+-----------+
10 rows in set