Note
This view is introduced since OceanBase Database V4.2.0.
Purpose
This view displays the real-time status of statistics collection tasks for all OBServer nodes in the current tenant.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| TENANT_ID | NUMBER | NO | The ID of the tenant to which the collection task belongs. |
| SVR_IP | VARCHAR2(46) | NO | The IP address of the OBServer node where the collection task resides. |
| SVR_PORT | NUMBER | NO | The port number of the OBServer node where the collection task resides. |
| SESSION_ID | NUMBER | NO | The ID of the session to which the collection task belongs. For V4.3.x:
|
| TRACE_ID | VARCHAR2(64) | NO | The ID of the trace to which the collection task belongs. |
| TASK_ID | VARCHAR2(36) | NO | The ID of the collection task, which is generated based on the universally unique identifier (UUID) and is globally unique. |
| TYPE | VARCHAR2(16) | NO | The type of the collection task. |
| TASK_START_TIME | TIMESTAMP(6) | NO | The start time of the collection task. |
| TASK_DURATION_TIME | NUMBER | NO | The duration of the collection task, in microseconds. |
| TASK_TABLE_COUNT | NUMBER | NO | The number of tables whose statistics need to be collected by the collection task. |
| COMPLETED_TABLE_COUNT | NUMBER | NO | The number of tables whose statistics have been collected by the collection task. |
| RUNNING_TABLE_OWNER | VARCHAR2(128) | NO | The username of the owner of the table whose statistics are being collected by the collection task. |
| RUNNING_TABLE_NAME | VARCHAR2(256) | NO | The name of the table whose statistics are being collected by the collection task. |
| RUNNING_TABLE_DURATION_TIME | VARCHAR2(256) | NO | The duration that has been taken by the collection task to collect statistics of the table. |
Sample query
Query the real-time status of statistics collection tasks in all nodes of the user tenant.
obclient> SELECT * FROM SYS.GV$OB_OPT_STAT_GATHER_MONITOR;
The query result is as follows:
+-----------+----------------+----------+------------+-----------------------------------+--------------------------------------+---------------+----------------------------+--------------------+------------------+-----------------------+---------------------+--------------------+-----------------------------+
| TENANT_ID | SVR_IP | SVR_PORT | SESSION_ID | TRACE_ID | TASK_ID | TYPE | TASK_START_TIME | TASK_DURATION_TIME | TASK_TABLE_COUNT | COMPLETED_TABLE_COUNT | RUNNING_TABLE_OWNER | RUNNING_TABLE_NAME | RUNNING_TABLE_DURATION_TIME |
+-----------+----------------+----------+------------+-----------------------------------+--------------------------------------+---------------+----------------------------+--------------------+------------------+-----------------------+---------------------+--------------------+-----------------------------+
| 1006 | xxx.xxx.xxx.xx | 2882 | 3221575784 | YB42AC1E87C6-0005FF6AD9F825FB-0-0 | c921f339-1bc8-11ee-a7ea-52583362494c | MANUAL GATHER | 2023-07-06 14:46:07.691856 | 609652 | 1 | 0 | test | t1 | 609653 |
+-----------+----------------+----------+------------+-----------------------------------+--------------------------------------+---------------+----------------------------+--------------------+------------------+-----------------------+---------------------+--------------------+-----------------------------+
1 row in set
References
To view the collection status of tenant-level historical statistics, see DBA_OB_TASK_OPT_STAT_GATHER_HISTORY.
To view the collection status of table-level historical statistics, see DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY.
For more information about statistics collection monitoring and diagnostics, see Statistics collection monitoring and diagnostics.