通过shell抓取mysql应用的CPU、内存负载
vi dbload.sh
#!/bin/bash
Date=date +"%Y-%m-%d %H:%M:%S"
Datee=date +%Y-%m-%d
Se=/bin/hostname
Cp=/bin/ps aux | grep 'mysql.sock' | head -n 1 | awk -F[:" "]+ '{print $3}'
Me=/bin/ps aux | grep 'mysql.sock' | head -n 1 | awk -F[:" "]+ '{print $4}'
/bin/echo "$Date,$Se,$Cp,$Me" > /log/dbload.txt
/bin/cat /log/dbload.txt | tr -s '[:blank:]' > /log/dbload2.csv
/usr/bin/mysql -h 10.0.0.2 -u icinga2 -p'xxxxxxx' --local-infile=1 dbload -e "LOAD DATA LOCAL INFILE '/log/dbload2.csv' INTO TABLE loadavg FIELDS TERMINATED BY ','"
:wq
mysql部分：
create database dbload default character set utf8;
create table loadvag(time datetime,server char(50),cpu float,mem float);
grant all on dbload.* to icinga2@'10.%' identified by 'xxxxx';
flush privileges;
exit
grafana语句：
select UNIX_TIMESTAMP(Time) as time, cpu as "db2" from loadavg where server="db2";