介紹：Anemometer 是一個(gè)圖形化顯示MySQL慢日志的工具。結(jié)合pt-query-digest，Anemometer可以很輕松的幫你去分析慢查詢(xún)?nèi)罩?，讓你很容易就能找到哪些SQL需要優(yōu)化

This is the Box Anemometer, the MySQL Slow Query Monitor. This tool is used to analyze slow query logs collected from MySQL instances to identify problematic queries

官方網(wǎng)站：https://github.com/box/Anemometer

環(huán)境概況

以寫(xiě)此文章時(shí) percona-toolkit最新的版本3.0.10為例
mysql數(shù)據(jù)庫(kù)對(duì)應(yīng)版本為5.7.21，二進(jìn)制安裝
http和php均是系統(tǒng)CentOS Linux release 7.4.1708 (Core)自帶版本

需要安裝的步驟如下：

1.percona-toolkit工具的安裝

2.php web環(huán)境的搭建安裝

3.Anemometer并配置

4.導(dǎo)入慢查詢(xún)?nèi)罩?/p>

5.訪(fǎng)問(wèn)界面，查看慢查詢(xún)

6.其他相關(guān)和問(wèn)題解決

0. 整體的架構(gòu)

1. percona-toolkit工具的安裝

安裝目的：pt-query-digest是percona-toolkit里面一個(gè)工具，其作用就是分析慢查詢(xún)?nèi)罩?，將MySQL慢查詢(xún)?nèi)罩具M(jìn)行統(tǒng)計(jì)并友好的顯示出來(lái)

下載地址：https://www.percona.com/downloads/percona-toolkit/

安裝方式（rpm）：

1、下載包，wget https://www.percona.com/downloads/percona-toolkit/3.0.10/binary/redhat/7/x86_64/percona-toolkit-3.0.10-1.el7.x86_64.rpm

2、安裝依賴(lài)，yum install perl-DBI perl-DBD-MySQL perl-IO-Socket-SSL perl-Digest-MD5 -y

3、正式安裝，rpm -ivh percona-toolkit-3.0.10-1.el7.x86_64.rpm

4、安裝完畢驗(yàn)證，pt-query-digest --version pt-query-digest 3.0.10

安裝方式（tar二進(jìn)制）

1、下載包，wget https://www.percona.com/downloads/percona-toolkit/3.0.10/binary/tarball/percona-toolkit-3.0.10_x86_64.tar.gz

2、安裝依賴(lài)，yum install perl-DBI perl-DBD-MySQL perl-IO-Socket-SSL perl-Digest-MD5 -y


3、解壓包，tar xf percona-toolkit-3.0.10_x86_64.tar.gz

4、直接使用工具， ./percona-toolkit-3.0.10/bin/pt-query-digest --version
pt-query-digest 3.0.10

2. php web環(huán)境的搭建

安裝目的：Anemometer需要依賴(lài)
LAMP環(huán)境LAMP環(huán)境的安裝：
1、安裝apache，yum install httpd httpd-devel -y
2、安裝php，yum install php php-mysql php-common php-bcmath php-dba php-cli php-gd php-mbstring php-mcrypt php-devel php-xml php-pdo -y
3、修改時(shí)區(qū)，vim /etc/php.ini，修改為 date.timezone = PRC

LAMP環(huán)境的啟動(dòng)：
1、啟動(dòng)，systemctl start httpd
2、關(guān)閉，systemctl stop httpd
3、重啟，systemctl restart httpd
4、查看，systemctl status httpd

3. 安裝Anemometer并配置

1、下載安裝：
安裝目的：安裝Anemometer應(yīng)用
下載地址：https://github.com/box/Anemometer
下載包：git clone https://github.com/box/Anemometer.git
移動(dòng)到對(duì)應(yīng)路徑：mv Anemometer /var/www/html/anemometer
2、目標(biāo)慢查詢(xún)數(shù)據(jù)庫(kù)上需要授予Anemometer主機(jī)對(duì)應(yīng)的權(quán)限
1、目的，用于分析目標(biāo)慢查詢(xún)數(shù)據(jù)庫(kù)explain執(zhí)行計(jì)劃
2、授權(quán)，grant select on *.* to 'anemometer'@'$ip' identified by '123456';flush privileges;（$ip為Anemometer主機(jī)對(duì)應(yīng)ip地址）
3、修改配置文件增加explain讀取用戶(hù)密碼信息 cp conf/sample.config.inc.php conf/config.inc.php vim conf/config.inc.php\\

4、修改配置文件指向數(shù)據(jù)源文件，vim conf/datasource_localhost.inc.php，當(dāng)然也可以直接vim conf/config.inc.php

5、初始化數(shù)據(jù)源的數(shù)據(jù)庫(kù)表的配置，mysql -uroot -p123456 -h127.0.0.1 -P5700 install.sql，每個(gè)datasource源頭可以對(duì)應(yīng)不同的數(shù)據(jù)庫(kù)database（修改install.sql的內(nèi)容）

4. 導(dǎo)入慢查詢(xún)?nèi)罩?/strong>

For pt-query-digest version  2.2
$ pt-query-digest --user=anemometer --password=superSecurePass \

--review h=db.example.com,D=slow_query_log,t=global_query_review \

--review-history h=db.example.com,D=slow_query_log,t=global_query_review_history \

--no-report --limit=0% \ 
--filter=" \$event->{Bytes} = length(\$event->{arg}) and \$event->{hostname}=\"$HOSTNAME\"" \ 
/var/lib/mysql/db.example.com-slow.log

For pt-query-digest version >= 2.2
$ pt-query-digest --user=anemometer --password=superSecurePass \

--review h=db.example.com,D=slow_query_log,t=global_query_review \

--history h=db.example.com,D=slow_query_log,t=global_query_review_history \

--no-report --limit=0% \ 
--filter=" \$event->{Bytes} = length(\$event->{arg}) and \$event->{hostname}=\"$HOSTNAME\"" \ 
/var/lib/mysql/db.example.com-slow.log

#config anemometer server, the purpose is to push slow query to the remote anemometer server and store it.
anemometer_host="127.0.0.1"
anemometer_user="root"
anemometer_password="123456"
anemometer_port=5700
anemometer_db="slow_query_log"

#config mysql server, the purpose is to get the path of the slow query log.
mysql_client="/usr/local/mysql-5.7.21/bin/mysql"
mysql_user="root"
mysql_password="123456"
mysql_socket="/tmp/mysql_5700.sock"
mysql_port=5700

#config slowqury dir to cd, and then delete the expired slow query file.
slowquery_dir="/data/mysql_$mysql_port/"

#get the path of the slow query log.
slowquery_file=`$mysql_client -u$mysql_user -p$mysql_password -S $mysql_socket -e "show variables like 'slow_query_log_file'"|grep log|awk '{print $2}'`
pt_query_digest="/data/percona-toolkit-3.0.10/bin/pt-query-digest"

#collect mysql slowquery log into lepus database.
$pt_query_digest --user=$anemometer_user --password=$anemometer_password --port=$anemometer_port --review h=$anemometer_host,D=$anemometer_db,t=global_query_review --history h=$anemometer_host,D=$anemometer_db,t=global_query_review_history --no-report --limit=0% --filter=" \$event->{Bytes} = length(\$event->{arg}) and \$event->{hostname}=\"$HOSTNAME:$mysql_port\"" $slowquery_file

#generate a new slow query log, the below is generate a new slow file per hour.
tmp_log=`$mysql_client -u$mysql_user -p$mysql_password -S $mysql_socket -e "select concat('$slowquery_dir','slowquery_',date_format(now(),'%Y%m%d%H'),'.log');"|grep log|sed -n -e '2p'`

#use new slow file to config mysql slowquery
$mysql_client -u$mysql_user -p$mysql_password -S $mysql_socket -e "set global slow_query_log = 0;set global slow_query_log_file = '$tmp_log';"
$mysql_client -u$mysql_user -p$mysql_password -S $mysql_socket -e "set global slow_query_log = 1; "

#delete slow query file before 2 days
cd $slowquery_dir
/usr/bin/find ./ -name 'slowquery_*.log' -mtime +2|xargs rm -rf ;

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