Note
This view is available starting with V4.0.0.
Overview
Displays the information about the MemTable and SSTable under each partition of all tenants on all OBServer nodes.
Columns
Field Name |
Type |
Whether can be NULL |
Description |
|---|---|---|---|
| SVR_IP | varchar(46) | NO | Server IP Address |
| SVR_PORT | bigint(20) | NO | Server Port Number |
| TABLE_TYPE | varchar(20) | NO | Table type |
| TENANT_ID | bigint(20) | NO | Tenant ID |
| LS_ID | bigint(20) | NO | Log Stream ID |
| TABLET_ID | bigint(20) | NO | Data Shard ID |
| START_LOG_SCN | bigint(20) unsigned | NO | The left boundary of the log timestamp range for the data in this table. |
| END_LOG_SCN | bigint(20) unsigned | NO | Right Boundary of Log Timestamp Range for Data in This Table |
| SIZE | bigint(20) | NO | Disk usage, in bytes |
| REF | bigint(20) | NO | The count of references to this table, in units of number |
| UPPER_TRANS_VERSION | bigint(20) unsigned | NO | Maximum Transaction Version Number of a Committed Transaction |
| IS_ACTIVE | varchar(3) | NO | Whether it is an active MemTable |
| CONTAIN_UNCOMMITTED_ROW | varchar(3) | NO | Whether the table contains uncommitted transaction rows:
|
Sample query
In the sys tenant, view the MemTable and SSTable information of partition 1001 for log stream 1001 of the tenant with ID 1002 on all OBServer nodes.
obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_SSTABLES WHERE TENANT_ID=1002 AND LS_ID=1001;
The query result is as follows:
+----------------+----------+------------------+-----------+-------+-----------+---------------------+---------------------+---------+------+---------------------+-----------+-------------------------+
| SVR_IP | SVR_PORT | TABLE_TYPE | TENANT_ID | LS_ID | TABLET_ID | START_LOG_SCN | END_LOG_SCN | SIZE | REF | UPPER_TRANS_VERSION | IS_ACTIVE | CONTAIN_UNCOMMITTED_ROW |
+----------------+----------+------------------+-----------+-------+-----------+---------------------+---------------------+---------+------+---------------------+-----------+-------------------------+
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200032 | 0 | 1743357601718033000 | 380 | 0 | 1743155516647021000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MINOR | 1002 | 1001 | 49402 | 1 | 1743155746972459000 | 3244 | 0 | 4096 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | TX_DATA_MEMTABLE | 1002 | 1001 | 49402 | 1743155746972459000 | 4611686018427387903 | 1048576 | 3 | 0 | YES | YES |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200037 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200015 | 0 | 1743357601718033000 | 411 | 0 | 1742957323483246000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200031 | 0 | 1743357601718033000 | 380 | 0 | 1743155516647021000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200007 | 0 | 1743357601718033000 | 643 | 0 | 1742541257735502000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200014 | 0 | 1743357601718033000 | 411 | 0 | 1742957323483246000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200030 | 0 | 1743357601718033000 | 380 | 0 | 1743155516647021000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200021 | 0 | 1743357601718033000 | 389 | 0 | 1743155475021424000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200016 | 0 | 1743357601718033000 | 411 | 0 | 1742957323483246000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200020 | 0 | 1743357601718033000 | 380 | 0 | 1743155475021424000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200038 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200005 | 0 | 1743357601718033000 | 643 | 0 | 1742541257735502000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200036 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200012 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200018 | 0 | 1743357601718033000 | 384 | 0 | 1743152704981127000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200013 | 0 | 1743357601718033000 | 406 | 0 | 1742957323483246000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 49401 | 0 | 1 | 0 | 0 | 1 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | TX_CTX_MEMTABLE | 1002 | 1001 | 49401 | 1 | 2 | 0 | 2 | 0 | YES | YES |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200004 | 0 | 1743357601718033000 | 961 | 0 | 1742541257735502000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200033 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 49403 | 0 | 1 | 0 | 0 | 1 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | LOCK_MEMTABLE | 1002 | 1001 | 49403 | 1 | 2 | 0 | 3 | 0 | YES | YES |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200002 | 0 | 1743357601718033000 | 933 | 0 | 1742541257735502000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200019 | 0 | 1743357601718033000 | 0 | 0 | 1743357601718033000 | NO | NO |
| 11.xxx.xxx.xxx | 28825 | MAJOR | 1002 | 1001 | 200003 | 0 | 1743357601718033000 | 774 | 0 | 1742541257735502000 | NO | NO |
+----------------+----------+------------------+-----------+-------+-----------+---------------------+---------------------+---------+------+---------------------+-----------+-------------------------+
27 rows in set