Note
This view is available starting with V1.4.
Purpose
This view displays the information about the last 10 wait events of all sessions on all OBServer nodes.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| SID | NUMBER | NO | For V4.2.x:
|
| CON_ID | NUMBER | NO | The tenant ID. |
| SVR_IP | VARCHAR2(46) | NO | The IP address of the server. |
| SVR_PORT | NUMBER(38) | NO | The port number of the server. |
| SEQ# | NUMBER | NO | The sequence number of the wait event. |
| EVENT# | NUMBER | NO | The wait event number. |
| EVENT | VARCHAR2(64) | NO | The name of the wait event. |
| P1TEXT | VARCHAR2(64) | NO | The description of the first parameter of the wait event. |
| P1 | NUMBER | NO | The value of the first parameter of the wait event. |
| P2TEXT | VARCHAR2(64) | NO | The description of the second parameter of the wait event. |
| P2 | NUMBER | NO | The value of the second parameter of the wait event. |
| P3TEXT | VARCHAR2(64) | NO | The description of the third parameter of the wait event. |
| P3 | NUMBER | NO | The value of the third parameter of the wait event. |
| WAIT_TIME_MICRO | NUMBER | NO | The wait time of the wait event, in microseconds. |
| TIME_SINCE_LAST_WAIT_MICRO | NUMBER | NO | The time elapsed since the end of the last wait event, in microseconds. |
| WAIT_TIME | NUMBER | NO | The wait time of the wait event, in 1/100 seconds. |
Sample query
In the user tenant, query the information about the last 10 wait events of all sessions on all OBServer nodes in the tenant.
obclient [SYS]> SELECT * FROM SYS.GV$SESSION_WAIT_HISTORY;
The query result is as follows:
+----------------------+--------+----------------+----------+------+--------+-------+--------+------+--------+------+--------+------+--------------------+------------------+----------------------------+
| SID | CON_ID | SVR_IP | SVR_PORT | SEQ# | EVENT# | EVENT | P1TEXT | P1 | P2TEXT | P2 | P3TEXT | P3 | WAIT_TIME | WAIT_TIME_MICRO | TIME_SINCE_LAST_WAIT_MICRO |
+----------------------+--------+----------------+----------+------+--------+-------+--------+------+--------+------+--------+------+--------------------+------------------+----------------------------+
| -9223372036854723788 | 1004 | 11.xxx.xxx.xxx | 28825 | 1 | 0 | NULL | NULL | 0 | NULL | 0 | NULL | 0 | 174315113113.80609 | 1743151131138061 | 0 |
+----------------------+--------+----------------+----------+------+--------+-------+--------+------+--------+------+--------+------+--------------------+------------------+----------------------------+
1 row in set