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社区首页 >专栏 >Mycat 管理命令7

Mycat 管理命令7

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franket
发布2021-12-02 09:30:57
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发布2021-12-02 09:30:57
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文章被收录于专栏:技术杂记

查看高频SQL

代码语言:javascript
复制
mysql> show @@sql.high ;
+------+------+-----------+----------+----------+----------+--------------+---------------+-------------------------------+
| ID   | USER | FREQUENCY | AVG_TIME | MAX_TIME | MIN_TIME | EXECUTE_TIME | LAST_TIME     | SQL                           |
+------+------+-----------+----------+----------+----------+--------------+---------------+-------------------------------+
|    0 | cc   |         1 |       13 |       27 |       27 |           27 | 1457442294297 | select count(*) from catworld |
+------+------+-----------+----------+----------+----------+--------------+---------------+-------------------------------+
1 row in set (0.00 sec)

mysql> 

查看慢查询

代码语言:javascript
复制
mysql> show @@sql.slow;
Empty set (0.00 sec)

mysql>

查看SQL统计

代码语言:javascript
复制
mysql> show @@sql.sum;
+------+------+------+------+------+------+--------------+--------------+---------------+
| ID   | USER | R    | W    | R%   | MAX  | TIME_COUNT   | TTL_COUNT    | LAST_TIME     |
+------+------+------+------+------+------+--------------+--------------+---------------+
|    1 | cc   |    8 |    0 | 1.00 | 1    | [0, 0, 0, 8] | [5, 3, 0, 0] | 1457442532080 |
+------+------+------+------+------+------+--------------+--------------+---------------+
1 row in set (0.00 sec)

mysql> 
mysql> show @@sql.sum.user;
+------+------+------+------+------+------+--------------+--------------+---------------+
| ID   | USER | R    | W    | R%   | MAX  | TIME_COUNT   | TTL_COUNT    | LAST_TIME     |
+------+------+------+------+------+------+--------------+--------------+---------------+
|    1 | cc   |    8 |    0 | 1.00 | 1    | [0, 0, 0, 8] | [5, 3, 0, 0] | 1457442532080 |
+------+------+------+------+------+------+--------------+--------------+---------------+
1 row in set (0.00 sec)

mysql> 

查看表统计

代码语言:javascript
复制
mysql> show @@sql.sum.table;
+------+----------+------+------+------+-----------+-----------+---------------+
| ID   | TABLE    | R    | W    | R%   | RELATABLE | RELACOUNT | LAST_TIME     |
+------+----------+------+------+------+-----------+-----------+---------------+
|    0 | catworld |    5 |    0 | 1.00 | NULL      | NULL      | 1457442518224 |
|    1 | abc      |    3 |    0 | 1.00 | NULL      | NULL      | 1457442532080 |
+------+----------+------+------+------+-----------+-----------+---------------+
2 rows in set (0.01 sec)

mysql> 

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如有侵权,请联系 cloudcommunity@tencent.com 删除。

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如有侵权,请联系 cloudcommunity@tencent.com 删除。

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目录
  • 查看高频SQL
  • 查看慢查询
  • 查看SQL统计
  • 查看表统计
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