現在の接続数
MariaDB> show status like 'Threads_connected';
+-------------------+-------+
| Variable_name | Value |
+-------------------+-------+
| Threads_connected | 1 |
+-------------------+-------+
1 row in set (0.01 sec)
最大接続数設定
mysql> show global variables like 'max_connections';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| max_connections | 150 |
+-----------------+-------+
1 row in set (0.00 sec)
起動してからの累積接続数
mysql> show global status like 'Connections';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| Connections | 11862 |
+---------------+-------+
1 row in set (0.00 sec)
起動してからこれまでの最大同時接続数
mysql> show global status like 'Max_used_connections';
+----------------------+-------+
| Variable_name | Value |
+----------------------+-------+
| Max_used_connections | 94 |
+----------------------+-------+
1 row in set (0.00 sec)
