Mycat 管理命令4
2023-03-31 10:28:54 时间
查看逻辑数据库
mysql> show @@database;
+----------+
| DATABASE |
+----------+
| TESTDB |
| cctest |
+----------+
2 rows in set (0.00 sec)
mysql>
查看数据节点
查看所有数据节点
mysql> show @@datanode;
+------+----------------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| NAME | DATHOST | INDEX | TYPE | ACTIVE | IDLE | SIZE | EXECUTE | TOTAL_TIME | MAX_TIME | MAX_SQL | RECOVERY_TIME |
+------+----------------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| dn1 | localhost1/db1 | 0 | mysql | 0 | 0 | 1000 | 0 | 0 | 0 | 0 | -1 |
| dn2 | localhost1/db2 | 0 | mysql | 0 | 0 | 1000 | 0 | 0 | 0 | 0 | -1 |
| dn3 | localhost1/db3 | 0 | mysql | 0 | 0 | 1000 | 0 | 0 | 0 | 0 | -1 |
| sd1 | h101/my1 | 0 | mysql | 0 | 4 | 100 | 4 | 0 | 0 | 0 | -1 |
| sd2 | h101/my2 | 0 | mysql | 0 | 0 | 100 | 2 | 0 | 0 | 0 | -1 |
| sd3 | h101/my3 | 0 | mysql | 0 | 6 | 100 | 175 | 0 | 0 | 0 | -1 |
| sd4 | h202/my4 | 0 | mysql | 0 | 0 | 100 | 0 | 0 | 0 | 0 | -1 |
| sd5 | h101/my5 | 0 | mysql | 0 | 0 | 100 | 2 | 0 | 0 | 0 | -1 |
+------+----------------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
8 rows in set (0.01 sec)
mysql>
查看某个schema的数据节点
mysql> show @@datanode where schema = cctest;
+------+----------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| NAME | DATHOST | INDEX | TYPE | ACTIVE | IDLE | SIZE | EXECUTE | TOTAL_TIME | MAX_TIME | MAX_SQL | RECOVERY_TIME |
+------+----------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
| sd1 | h101/my1 | 0 | mysql | 0 | 4 | 100 | 4 | 0 | 0 | 0 | -1 |
| sd2 | h101/my2 | 0 | mysql | 0 | 0 | 100 | 2 | 0 | 0 | 0 | -1 |
| sd3 | h101/my3 | 0 | mysql | 0 | 6 | 100 | 180 | 0 | 0 | 0 | -1 |
| sd5 | h101/my5 | 0 | mysql | 0 | 0 | 100 | 2 | 0 | 0 | 0 | -1 |
+------+----------+-------+-------+--------+------+------+---------+------------+----------+---------+---------------+
4 rows in set (0.01 sec)
mysql>
查看数据源
查看所有数据源
mysql> show @@datasource;
+----------+--------+-------+-----------------+------+------+--------+------+------+---------+
| DATANODE | NAME | TYPE | HOST | PORT | W/R | ACTIVE | IDLE | SIZE | EXECUTE |
+----------+--------+-------+-----------------+------+------+--------+------+------+---------+
| sd3 | h101M1 | mysql | 192.168.100.101 | 3306 | W | 0 | 10 | 100 | 194 |
| sd4 | h202M1 | mysql | 192.168.100.202 | 3306 | W | 0 | 0 | 100 | 0 |
| sd1 | h101M1 | mysql | 192.168.100.101 | 3306 | W | 0 | 10 | 100 | 194 |
| sd2 | h101M1 | mysql | 192.168.100.101 | 3306 | W | 0 | 10 | 100 | 194 |
| sd5 | h101M1 | mysql | 192.168.100.101 | 3306 | W | 0 | 10 | 100 | 194 |
| dn2 | hostM1 | mysql | localhost | 3306 | W | 0 | 0 | 1000 | 0 |
| dn2 | hostS1 | mysql | localhost | 3316 | W | 0 | 0 | 1000 | 0 |
| dn3 | hostM1 | mysql | localhost | 3306 | W | 0 | 0 | 1000 | 0 |
| dn3 | hostS1 | mysql | localhost | 3316 | W | 0 | 0 | 1000 | 0 |
| dn1 | hostM1 | mysql | localhost | 3306 | W | 0 | 0 | 1000 | 0 |
| dn1 | hostS1 | mysql | localhost | 3316 | W | 0 | 0 | 1000 | 0 |
+----------+--------+-------+-----------------+------+------+--------+------+------+---------+
11 rows in set (0.00 sec)
mysql>
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