基于mysql的SQLadvisor工具一次优化尝试

基于mysql的SQLadvisor工具一次优化尝试

使用方式：

1 1> [root@SQLAdvisor ~]# getenforce 
2 Disabled
3 安装SQLAdvisor
4 [root@SQLAdvisor ~]# yum -y install cmake libaio-devel libffi-devel glib2 glib2-devel

2> 配置Percona56 yum源;

1 $ yum install http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm

# 安装Percona-Server-shared-56;

1 $ yum install Percona-Server-shared-56

3> 查看版本，测试是否安装成功。

1 [root@xjfw3 ~]# cmake --version
2 cmake version 3.10.0-rc4
3 CMake suite maintained and supported by Kitware (kitware.com/cmake).

4> 建立软连接

1 [root@SQLAdvisor ~]# ln -s /usr/lib64/libperconaserverclient_r.so.18 /usr/lib64/libperconaserverclient_r.so

5> 编译依赖项sqlparser

1 [root@SQLAdvisor ~]# cd SQLAdvisor/
2 [root@SQLAdvisor SQLAdvisor]# cmake -DBUILD_CONFIG=mysql_release -DCMAKE_BUILD_TYPE=debug -DCMAKE_INSTALL_PREFIX=/usr/local/sqlparser ./
3 [root@SQLAdvisor SQLAdvisor]# make && make install

6> 安装SQLAdvisor

1 [root@SQLAdvisor SQLAdvisor]# cd sqladvisor/
2 [root@SQLAdvisor sqladvisor]# cmake -DCMAKE_BUILD_TYPE=debug ./
3 [root@SQLAdvisor sqladvisor]# make
4 [root@SQLAdvisor sqladvisor]# ./sqladvisor --help

#####################################自己环境下的一次测试#############################

 1 mysql> create database test1 character set utf8mb4;
 2 Query OK, 1 row affected (0.00 sec)
 3 
 4 mysql> create table user(
 5 -> id INT PRIMARY KEY AUTO_INCREMENT,
 6 -> name VARCHAR(64) NOT NULL,
 7 -> age int,
 8 -> sex int
 9 -> )ENGINE=INNODB DEFAULT CHARSET=utf8mb4;
10 Query OK, 0 rows affected (0.13 sec)
11 
12 mysql> desc user;
13 +-------+-------------+------+-----+---------+----------------+
14 | Field | Type | Null | Key | Default | Extra |
15 +-------+-------------+------+-----+---------+----------------+
16 | id | int(11) | NO | PRI | NULL | auto_increment |
17 | name | varchar(64) | NO | | NULL | |
18 | age | int(11) | YES | | NULL | |
19 | sex | int(11) | YES | | NULL | |
20 +-------+-------------+------+-----+---------+----------------+
21 4 rows in set (0.01 sec)
22 
23 * 生成测试数据
24 mysql> insert into user(name,age, sex) select 'lisea', 25, 1;
25 Query OK, 1 row affected (0.01 sec)
26 Records: 1 Duplicates: 0 Warnings: 0
27 生产测试数据
28 insert into user(name,age, sex) select concat(name, '1'), age+1, sex+1 from user;
29 insert into user(name,age, sex) select concat(name, '2'), age+2, sex from user;
30 insert into user(name,age, sex) select concat(name, '3'), age+2, sex from user;
31 insert into user(name,age, sex) select concat(name, '10'), age+2, sex from user;
32 insert into user(name,age, sex) select concat(name, '11'), age+4, sex from user;
33 --执行两次
34 
35 结果
36 [mysql@mysql sqladvisor]$ ./sqladvisor -h 192.168.226.131 -P 16063 -u root -p '6yhn^YHN' -d test1 -q "select * from user where name = 'lisea'" -v 1
37 2019-10-24 07:36:20 35965 [Note] 第1步: 对SQL解析优化之后得到的SQL:select `*` AS `*` from `test1`.`user` where (`name` = 'lisea') 
38 2019-10-24 07:36:20 35965 [Note] 第2步：开始解析where中的条件:(`name` = 'lisea') 
39 2019-10-24 07:36:20 35965 [Note] show index from user 
40 2019-10-24 07:36:20 35965 [Note] show table status like 'user' 
41 2019-10-24 07:36:20 35965 [Note] select count(*) from ( select `name` from `user` FORCE INDEX( PRIMARY ) order by id DESC limit 10000) `user` where (`name` = 'lisea') 
42 2019-10-24 07:36:20 35965 [Note] 第3步：表user的行数:1045485,limit行数:10000,得到where条件中(`name` = 'lisea')的选择度:10000 
43 2019-10-24 07:36:20 35965 [Note] 第4步：开始验证 字段name是不是主键。表名:user 
44 2019-10-24 07:36:20 35965 [Note] show index from user where Key_name = 'PRIMARY' and Column_name ='name' and Seq_in_index = 1 
45 2019-10-24 07:36:20 35965 [Note] 第5步：字段name不是主键。表名:user 
46 2019-10-24 07:36:20 35965 [Note] 第6步：开始验证 字段name是不是主键。表名:user 
47 2019-10-24 07:36:20 35965 [Note] show index from user where Key_name = 'PRIMARY' and Column_name ='name' and Seq_in_index = 1 
48 2019-10-24 07:36:20 35965 [Note] 第7步：字段name不是主键。表名:user 
49 2019-10-24 07:36:20 35965 [Note] 第8步：开始验证表中是否已存在相关索引。表名:user, 字段名:name, 在索引中的位置:1 
50 2019-10-24 07:36:20 35965 [Note] show index from user where Column_name ='name' and Seq_in_index =1 
51 2019-10-24 07:36:20 35965 [Note] 第9步：开始输出表user索引优化建议: 
52 2019-10-24 07:36:20 35965 [Note] Create_Index_SQL：alter table user add index idx_name(name) 
53 2019-10-24 07:36:20 35965 [Note] 第10步: SQLAdvisor结束!
54 
55 也可配置文件传参调用    
56 [root@SQLAdvisor sqladvisor]# cat sql.cnf 
57 [sqladvisor]
58 username=root
59 password=123
60 host=127.0.0.1
61 port=3306
62 dbname=test1
63 sqls=select * from user where name = 'lisea'
64 [root@SQLAdvisor sqladvisor]# ./sqladvisor -f sql.cnf -v 1