【MySQL】SQLAdvisor的简单安装使用

#git clone https://github.com/Meituan-Dianping/SQLAdvisor.git

yum install -y cmake libaio-devel libffi-devel glib2 glib2-devel bison
yum install -y Percona-Server-server-56 Percona-Server-client-56

//设置软链
cd /usr/lib64/
ls -l libperconaserverclient_r.so.18
ln -s libperconaserverclient_r.so.18 libperconaserverclient_r.so

跟据glib安装的路径，修改SQLAdvisor/sqladvisor/CMakeLists.txt中的两处include_directories针对glib设置的path。glib yum 安装默认不需要修改路径
编译sqladvisor时依赖perconaserverclient_r, 因此需要安装Percona-Server-shared-56。有可能需要配置软链接,例如:
1. cd /usr/lib64/ 
2. ln -s libperconaserverclient_r.so.18 libperconaserverclient_r.so
有可能需要配置percona56 yum源:
yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm
yum -y install Percona-Server-shared-56

1. cmake -DBUILD_CONFIG=mysql_release -DCMAKE_BUILD_TYPE=debug -DCMAKE_INSTALL_PREFIX=/usr/local/sqlparser ./
2. make && make install

DCMAKE_INSTALL_PREFIX为sqlparser库文件和头文件的安装目录，其中lib目录包含库文件libsqlparser.so，include目录包含所需的所有头文件。
DCMAKE_INSTALL_PREFIX值尽量不要修改，后面安装依赖这个目录。

1. cd SQLAdvisor/sqladvisor/
2. cmake -DCMAKE_BUILD_TYPE=debug ./
3. make
在本路径下生成一个sqladvisor可执行文件，这即是我们想要的。

# ./sqladvisor --help
Usage:
  sqladvisor [OPTION...] sqladvisor

SQL Advisor Summary

Help Options:
  -?, --help              Show help options

Application Options:
  -f, --defaults-file     sqls file
  -u, --username          username
  -p, --password          password
  -P, --port              port
  -h, --host              host
  -d, --dbname            database name
  -q, --sqls              sqls
  -v, --verbose           1:output logs 0:output nothing

# ./sqladvisor -h xx  -P xx  -u xx -p 'xx' -d xx -q "sql" -v 1

$> cat sql.cnf
[sqladvisor]
username=xx
password=xx
host=xx
port=xx
dbname=xx
sqls=sql1;sql2;sql3....

cmd: ./sqladvisor -f sql.cnf  -v 1

[root@OPS-9-78 sqladvisor]# sqladvisor -u root -p 'xxxxxx' -h 192.168.9.78 -P 3400 -d test_tur -q "select * from base_test where district_code=10000" -v 1 
2020-04-22 14:16:58 63400 [Note] 第1步: 对SQL解析优化之后得到的SQL:select `*` AS `*` from `test_tur`.`base_test` where (`district_code` = 10000) 

2020-04-22 14:16:58 63400 [Note] 第2步：开始解析where中的条件:(`district_code` = 10000) 

2020-04-22 14:16:58 63400 [Note] show index from base_test 

2020-04-22 14:16:58 63400 [Note] show table status like 'base_test' 

2020-04-22 14:16:58 63400 [Note] select count(*) from ( select `district_code` from `base_test` FORCE INDEX( PRIMARY ) order by id DESC limit 10000) `base_region` where (`district_code` = 10000)  

2020-04-22 14:16:59 63400 [Note] 第3步：表base_test的行数:47447,limit行数:10000,得到where条件中(`district_code` = 10000)的选择度:10000 

2020-04-22 14:16:59 63400 [Note] 第4步：开始验证 字段district_code是不是主键。表名:base_test 

2020-04-22 14:16:59 63400 [Note] show index from base_test where Key_name = 'PRIMARY' and Column_name ='district_code' and Seq_in_index = 1 

2020-04-22 14:16:59 63400 [Note] 第5步：字段district_code不是主键。表名:base_test 

2020-04-22 14:16:59 63400 [Note] 第6步：开始验证 字段district_code是不是主键。表名:base_test 

2020-04-22 14:16:59 63400 [Note] show index from base_test where Key_name = 'PRIMARY' and Column_name ='district_code' and Seq_in_index = 1 

2020-04-22 14:16:59 63400 [Note] 第7步：字段district_code不是主键。表名:base_test 

2020-04-22 14:16:59 63400 [Note] 第8步：开始验证表中是否已存在相关索引。表名:base_test, 字段名:district_code, 在索引中的位置:1 

2020-04-22 14:16:59 63400 [Note] show index from base_test where Column_name ='district_code' and Seq_in_index =1 

2020-04-22 14:16:59 63400 [Note] 第9步：开始输出表base_test索引优化建议: 

2020-04-22 14:16:59 63400 [Note] Create_Index_SQL：alter table base_test add index idx_district_code(district_code) 

2020-04-22 14:16:59 63400 [Note] 第10步: SQLAdvisor结束!