mysqld_exporter部署

简单介绍

mysqld_exporter是prometheus官方提供的用于监控mysql运行状态的exporter

---

环境

系统	版本
CentOS	7.6.1810 (Core)
CPU/内存	4核、8G
mysqld_exporter	0.14.0

软件包下载

CSDN

mysql_exporter

官网

官网

部署

解压

[root@A bag]# tar xf mysqld_exporter-0.14.0.linux-amd64.tar.gz
[root@A bag]# mv mysqld_exporter-0.14.0.linux-amd64  ../mysqld_exporter

配置my.cnf

my.cnf是mysqld_exporter的

[root@A bag]# cd ../mysqld_exporter
[root@A mysqld_exporter]# cat <> my.cnf
[client]
host = 192.168.1.10
port = 3306
user = exporter
password = exporter@123
[mysqladmin]
host = 192.168.1.10
port = 3306
user = exporter
password = exporter@123
EOF

mysql授权用户

登录进去数据库，进行授权

grant PROCESS,REPLICATION CLIENT,SELECT  on *.* to 'exporter'@'192.168.1.10' identified by 'exporter@123' with grant option;

测试登录信息

mysql -u exporter -p'exporter@123' -h 192.168.1.10 -P 3306

启动

分两种，任选一种，博主是第一种

supervisor启动

安装

yum install -y supervisor
systemctl enable supervisord --now

配置my.ini

cat <<EOF>> /etc/supervisord.d/my.ini
[program:mysqld_exporter]
directory=/data/mysqld_exporter
command=/data/mysqld_exporter/mysqld_exporter --config.my-cnf=/data/mysqld_exporter/my.cnf --web.listen-address=0.0.0.0:9104 --collect.slave_status --collect.binlog_size --collect.info_schema.processlist --collect.info_schema.innodb_metrics --collect.engine_innodb_status --collect.perf_schema.file_events --collect.perf_schema.replication_group_member_stats
user=root
autostart=true
autorestart=true
startsecs = 2
redirect_stderr=true
stdout_logfile=/var/log/mysqld_exporter.log
EOF

启动

# 加载配置
supervisorctl update
# 查看状态
supervisorctl status

配置为系统服务

mysqld-exporter.service

cat <<EOF>>  /usr/lib/systemd/system/mysqld-exporter.service 
[Unit]
Description=mysqld_exporter


[Service]
User=root
ExecStart=/data/mysqld_exporter/mysqld_exporter --config.my-cnf /data/mysqld_exporter/my.cnf --web.listen-address=0.0.0.0:9104 \
--collect.slave_status \
--collect.binlog_size \
--collect.info_schema.processlist \
--collect.info_schema.innodb_metrics \
--collect.engine_innodb_status \
--collect.perf_schema.file_events \
--collect.perf_schema.replication_group_member_stats
Restart=on-failure

[Install]
WantedBy=multi-user.targe
EOF

启动

systemctl daemon-reload
systemctl enable mysqld-exporter --now
systemctl status mysqld-exporter
systemctl stop mysqld-exporter

mysqld_exporter监控两个数据库

my3307.cnf

[root@A mysqld_exporter]# cat <> my3307.cnf
[client]
host = 192.168.1.10
port = 3307
user = exporter
password = exporter@123
[mysqladmin]
host = 192.168.1.10
port = 3307
user = exporter
password = exporter@123
EOF

数据库授权

grant PROCESS,REPLICATION CLIENT,SELECT  on *.* to 'exporter'@'192.168.1.10' identified by 'exporter@123' with grant option;

测试登录信息

mysql -u exporter -p'exporter@123' -h 192.168.1.10 -P 3306

配置启动信息

• supervisor方式
• 修改program
• 里边的my.cnf名字
• 端口

cat <<EOF>> /etc/supervisord.d/my3307.ini
[program:mysqld_exporter3307]
directory=/data/mysqld_exporter
command=/data/mysqld_exporter/mysqld_exporter --config.my-cnf=/data/mysqld_exporter/my33047.cnf --web.listen-address=0.0.0.0:9105 --collect.slave_status --collect.binlog_size --collect.info_schema.processlist --collect.info_schema.innodb_metrics --collect.engine_innodb_status --collect.perf_schema.file_events --collect.perf_schema.replication_group_member_stats
user=root
autostart=true
autorestart=true
startsecs = 2
redirect_stderr=true
stdout_logfile=/var/log/mysqld_exporter.log
EOF

启动

# 加载配置
supervisorctl update
# 查看状态
supervisorctl status

Grafana监控配置

ID: 7362

prometheus.yml修改

参考

scrape_configs:
  - job_name: mysqld
      static_configs:
      - targets: ['192.168.1.10:9104']

prometheus监控&插件方案

prometheus部署

总结

以上是centos上边部署mysqld_exporter监控数据库的方法，有问题联系博主，后续也有其他插件