分主機查看連接數

mysql> select count(1) ‘連接數‘,host_db.host ‘客戶端‘ from ( select substring_index(host,‘:‘,1) as "host" from processlist ) host_db group by host_db.host;
+------+---------------+
| 連接數 | 客戶端          |
+------+---------------+
|    3 | 172.16.91.237 |
|    3 | 172.16.91.249 |
|  186 | bogon         |
 

|   12 | localhost     |
+------+---------------+
4 rows in set

分數據庫查看連接數

mysql> select count(1) ‘連接數‘,db ‘數據庫‘ from processlist group by db;
+------+--------------------+
| 連接數 | 數據庫               |
+------+--------------------+
|    1 | NULL               |
|    3 | bpm                |
|    3
 
 | bpm_ys             |
|    3 | epm                |
|    2 | information_schema |
|  119 | perform2           |
|    5 | pms                |
|   39 | portal             |
|   29 | security_ys        |
+------+--------------------+
9 rows in set

MySQL 網絡訪問連接