Note
This view was introduced in V4.0.0.
Description
This view displays the status and restore progress of log streams in the current tenant.
Fields
Field name |
Type |
Not null |
Description |
|---|---|---|---|
| LS_ID | NUMBER | NO | The ID of the log stream. |
| STATUS | VARCHAR2(100) | NO | The status of the log stream. Valid values: CREATING: The log stream is being created.CREATED: The log stream has been created.NORMAL: The log stream is available for services.DROPPING: The log stream is to be deleted. The tablets on the log stream need to be migrated.TENANT DROPPING: The log stream is in the process of being deleted because the tenant to which it belongs is being deleted.WAIT OFFLINE: The data of the log stream has been deleted. It is waiting for garbage collection.CREATE ABORT: The creation of the log stream has failed or is no longer needed. The log stream is to be deleted. |
| PRIMARY_ZONE | CLOB | YES | The primary zone of the log stream. |
| UNIT_GROUP_ID | NUMBER | NO | The ID of the unit group. |
| LS_GROUP_ID | NUMBER | NO | The ID of the log stream group. |
| CREATE_SCN | NUMBER | NO | The SCN where the log stream begins to write logs. |
| DROP_SCN | NUMBER | NO | The SCN where the log stream is to be deleted. It is also the SCN where all user data ends. |
| SYNC_SCN | NUMBER | NO | The synchronization SCN of the log stream. |
| READABLE_SCN | NUMBER | NO | The readable SCN of the log stream. |
| FLAG | VARCHAR2(2048) | YES | The flags of the log stream. Possible values:
NoteThis field was introduced in V4.2.0. |
Examples
A user tenant queries the status and restore progress of its log streams.
obclient [SYS]> SELECT * FROM SYS.DBA_OB_LS;
The query result is as follows:
+-------+--------+--------------+---------------+-------------+---------------------+----------+---------------------+---------------------+------+
| LS_ID | STATUS | PRIMARY_ZONE | UNIT_GROUP_ID | LS_GROUP_ID | CREATE_SCN | DROP_SCN | SYNC_SCN | READABLE_SCN | FLAG |
+-------+--------+--------------+---------------+-------------+---------------------+----------+---------------------+---------------------+------+
| 1 | NORMAL | zone1 | 0 | 0 | NULL | NULL | 1741747516828022001 | 1741747516828022000 | NULL |
| 1001 | NORMAL | zone1 | 1002 | 1001 | 1740535631547912001 | NULL | 1741747516828022001 | 1741747516828022000 | NULL |
+-------+--------+--------------+---------------+-------------+---------------------+----------+---------------------+---------------------+------+
2 rows in set