Note
- This view is available starting with V4.3.5 for V4.3.x.
- This view is available starting with V4.2.2 for V4.2.x.
Purpose
The V$OB_SESS_TIME_MODEL view displays session-level time model statistics on the current node.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| SID | bigint(20) | NO | The session ID. |
| TENANT_ID | bigint(20) | NO | The tenant ID. |
| SVR_IP | varchar(46) | NO | The IP address of the node. |
| SVR_PORT | bigint(20) | NO | The port number of the node. |
| STAT_ID | bigint(20) | NO | The ID of the statistic. |
| STAT_NAME | varchar(64) | NO | The name of the statistic. |
| VALUE | bigint(20) | NO | The value of the statistic. |
The following table describes the statistics and their corresponding IDs in the STAT_NAME column.
| Statistic Name | Description | Statistic ID | Statistic Type |
|---|---|---|---|
| DB time | The total time spent on database activities, including CPU time and non-idle wait time. | 200001 | 3072 |
| DB CPU | The CPU time spent on database activities. | 200002 | 3072 |
| background elapsed time | The total time spent on background processes. | 200005 | 3072 |
| background cpu time | The CPU time spent on background processes. | 200006 | 3072 |
| non idle wait time | The total time spent on non-idle waits, which is the time when a session is in a waiting state but not in an idle wait. | 200010 | 3072 |
| idle wait time | The total time spent on idle waits, which is the time when a session is in an idle wait. | 200011 | 3072 |
| background database time | The total time spent on database operations by background processes. | 200012 | 3072 |
| background database non-idle wait time | The time spent on database operations by background processes in a non-idle wait state. | 200013 | 3072 |
| background database idle wait time | The time spent on database operations by background processes in an idle wait state. | 200014 | 3072 |
| concurrency wait total time | The total time spent on waiting for concurrency issues, such as waiting for resource locks. | 220001 | 3072 |
| user io wait total time | The total time spent on waiting for I/O operations, such as reading or writing data to disk. | 220002 | 3072 |
| application wait total time | The total time spent on waiting for user application code, such as waiting for row-level locks or explicit lock commands. | 2200013 | 3072 |
Sample query
Query the session-level time model statistics on the current node and display the first 10 records.
obclient [oceanbase]> SELECT * FROM oceanbase.V$OB_SESS_TIME_MODEL LIMIT 10;
The query result is as follows:
+---------------+-----------+----------------+----------+---------+--------------------+-------+
| SID | TENANT_ID | SVR_IP | SVR_PORT | STAT_ID | STAT_NAME | VALUE |
+---------------+-----------+----------------+----------+---------+--------------------+-------+
| 3298534883328 | 1002 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 0 |
| 3298534883328 | 1002 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
| 3848290697216 | 1001 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 0 |
| 3848290697216 | 1001 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
| 4398046511104 | 1001 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 0 |
| 4398046511104 | 1001 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
| 3221667747 | 1 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 0 |
| 3221667747 | 1 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
| 4947802324992 | 1004 | 172.xx.xxx.xxx | 2882 | 200010 | non idle wait time | 0 |
| 4947802324992 | 1004 | 172.xx.xxx.xxx | 2882 | 200011 | idle wait time | 0 |
+---------------+-----------+----------------+----------+---------+--------------------+-------+
10 rows in set