Note
- The view was introduced in OceanBase Database V4.3.5 for V4.3.x.
- The view was introduced in OceanBase Database V4.2.2 for V4.2.x.
Purpose
The V$OB_SESS_TIME_MODEL view displays the time model statistics for sessions on the current node.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| SID | bigint(20) | NO | Session ID |
| TENANT_ID | bigint(20) | NO | Tenant ID |
| SVR_IP | varchar(46) | NO | Node IP |
| SVR_PORT | bigint(20) | NO | Node port |
| STAT_ID | bigint(20) | NO | Stat ID |
| STAT_NAME | varchar(64) | NO | Stat name |
| VALUE | bigint(20) | NO | Stat value |
The following table describes the statistics events and their corresponding IDs in the STAT_NAME column of the view. | Statistic event | Description | Stat ID | Stat type | | ------------|------|------------|----------------| | DB time | The total time of database activities, which is the sum of CPU time and non-idle wait time. | 200001 | 3072 | | DB CPU | The CPU time of database activities. | 200002 | 3072 | | background elapsed time | The total time of background process execution. | 200005 | 3072 | | background cpu time | The CPU time of background processes. | 200006 | 3072 | | non idle wait time | The total time of non-idle waits, which is the total time when the session is in a wait state but not in an idle wait state. | 200010 | 3072 | | idle wait time | The total time of idle waits, which is the total time when the session is in an idle wait state. | 200011 | 3072 | | background database time | The total time of database operations performed by background processes. | 200012 | 3072 | | background database non-idle wait time | The total time of database operations performed by background processes in non-idle wait states. | 200013 | 3072 | | background database idle wait time | The total time of database operations performed by background processes in idle wait states. | 200014 | 3072 | | concurrency wait total time | The total wait time due to concurrency issues, such as wait time due to resource locking. | 220001 | 3072 | | user io wait total time | The total wait time for user processes waiting for I/O operations (such as data read or write to disk) to complete. | 220002 | 3072 |
| application wait total time | The 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.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