三 Prometheus 监控 Mysql

1 ) 下载 mysqld_exporter :

wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.12.1/mysqld_exporter-0.12.1.linux-amd64.tar.gz
tar -zxf mysqld_exporter-0.12.1.linux-amd64.tar.gz 
mv mysqld_exporter-0.12.1.linux-amd64 mysqld_exporter
chown -R work.work mysqld_exporter/

2 ) 登录mysql为exporter创建账号并授权:

# 2.1 )  创建数据库用户：
mysql> CREATE USER 'exporter'@'%' IDENTIFIED BY '123456';

# 2.2 )  可查看主从运行情况查看线程，及所有数据库：
mysql> GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'%';

# 2.3 )  创建mysql配置文件、运行时可免密码连接数据库:
vim /data/soft/mysqld_exporter/.mysqld_exporter.cnf

[client]
host= MYsql的IP地址
port=3306
user=exporter 
password=123456

3 ) 启动exporter客户端

vim  /data/soft/mysqld_exporter/my_exporter.sh

#!/bin/bash

cd /data/soft/mysqld_exporter
./mysqld_exporter --config.my-cnf /data/soft/mysqld_exporter/.mysqld_exporter.cnf 
--collect.auto_increment.columns 
--collect.binlog_size 
--collect.engine_innodb_status 
#--collect.engine_tokudb_status 
--collect.global_status 
--collect.info_schema.tables 
--collect.info_schema.innodb_tablespaces 
--collect.info_schema.innodb_metrics 
--collect.global_status 
--collect.global_variables 
--collect.slave_status 
--collect.info_schema.processlist 
--collect.perf_schema.tablelocks 
--collect.perf_schema.eventsstatements 
--collect.perf_schema.eventsstatementssum 
--collect.perf_schema.eventswaits 
--collect.auto_increment.columns 
--collect.perf_schema.tableiowaits 
--collect.perf_schema.indexiowaits 
--collect.info_schema.userstats 
--collect.info_schema.clientstats 
--collect.info_schema.tablestats 
--collect.info_schema.schemastats 
--collect.perf_schema.file_events 
--collect.perf_schema.file_instances 
--collect.perf_schema.replication_group_member_stats 
--collect.perf_schema.replication_applier_status_by_worker 
--collect.slave_hosts 
--collect.info_schema.innodb_cmp 
--collect.info_schema.innodb_cmpmem 
--web.listen-address=0.0.0.0:9104

4 ) 启动脚本：

# 4.1 )  脚本内容：

vim /usr/lib/systemd/system/mysql_exporter.service

[Unit]
Description=https://prometheus.io

[Service]
Restart=on-failure
ExecStart=/data/soft/mysqld_exporter/mysqld_exporter 
--config.my-cnf /data/soft/mysqld_exporter/.mysqld_exporter.cnf 
--collect.auto_increment.columns 
--collect.binlog_size 
--collect.engine_innodb_status 
#--collect.engine_tokudb_status 
--collect.global_status 
--collect.info_schema.tables 
--collect.info_schema.innodb_tablespaces 
--collect.info_schema.innodb_metrics 
--collect.global_status 
--collect.global_variables 
--collect.slave_status 
--collect.info_schema.processlist 
--collect.perf_schema.tablelocks 
--collect.perf_schema.eventsstatements 
--collect.perf_schema.eventsstatementssum 
--collect.perf_schema.eventswaits 
--collect.auto_increment.columns 
--collect.perf_schema.tableiowaits 
--collect.perf_schema.indexiowaits 
--collect.info_schema.userstats 
--collect.info_schema.clientstats 
--collect.info_schema.tablestats 
--collect.info_schema.schemastats 
--collect.perf_schema.file_events 
--collect.perf_schema.file_instances 
--collect.perf_schema.replication_group_member_stats 
--collect.perf_schema.replication_applier_status_by_worker 
--collect.slave_hosts 
--collect.info_schema.innodb_cmp 
--collect.info_schema.innodb_cmpmem 
--web.listen-address=0.0.0.0:9104

[Install]
WantedBy=multi-user.target

# 4.2 )  启动信息：
systemctl daemon-reload
systemctl enable mysql_exporter
systemctl start mysql_exporter
systemctl status mysql_exporter

5 ) 配置Prometheus:

vim prometheus.yml
 ......
 
  - job_name: 'mysql_exporter'
    static_configs:
    - targets: ['IP地址:9104']
      labels:
        operator: 'Ucloud'
        area: '北京二D'
        env: 'Pord'

6 ) Grafana 添加模板：

6.1 ) 添加模板：
 7362  or  6239
 
6.2 )