Note
This view is available starting with V4.0.0.
Purpose
This view displays the major compaction information of each zone of the current tenant.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| ZONE | varchar(128) | NO | The name of the zone. |
| BROADCAST_SCN | bigint(20) unsigned | NO | The version number of the major compaction broadcasted to all servers. |
| LAST_SCN | bigint(20) unsigned | NO | The version number of the last major compaction. |
| LAST_FINISH_TIME | timestamp(6) | NO | The end time of the last major compaction. |
| START_TIME | timestamp(6) | NO | The start time of the major compaction. |
| STATUS | varchar(10) | NO |
|
Sample query
Query the major compaction information of each zone of the current tenant.
obclient> SELECT * FROM oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION;
The query result is as follows:
+-------+---------------------+---------------------+----------------------------+----------------------------+--------+
| ZONE | BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS |
+-------+---------------------+---------------------+----------------------------+----------------------------+--------+
| zone1 | 1748455203800778000 | 1748455203800778000 | 2025-05-29 02:08:07.213120 | 2025-05-29 02:00:03.843129 | IDLE |
+-------+---------------------+---------------------+----------------------------+----------------------------+--------+
1 row in set
References
Query the global major compaction information of the current tenant: DBA_OB_MAJOR_COMPACTION
Query the tablet-level basic statistics of major compaction:
Query the detailed historical information of major compaction at the tablet level:
For more information about major compaction, see the following topics: