mha 相关设置

发布时间:2020-07-25 03:56:35 作者:Love轩轩
阅读:425
开发者专用服务器限时活动,0元免费领! 查看>>

/etc/my.cnf

read_only=on

启动项加入 --relay-log-purge=off

/etc/systemd/system/mysql.service

# Simple MySQL systemd service file

#

# systemd supports lots of fancy features, look here (and linked docs) for a full list: 

#  http://www.freedesktop.org/software/systemd/man/systemd.exec.html

#

# Note: this file ( /usr/lib/systemd/system/mysql.service )

# will be overwritten on package upgrade, please copy the file to 

#

#  /etc/systemd/system/mysql.service 

#  

# to make needed changes.

# systemd-delta can be used to check differences between the two mysql.service files.

#

[Unit]

Description=MySQL Community Server

After=network.target

After=syslog.target

[Install]

WantedBy=multi-user.target

Alias=mysql.service

[Service]

User=mysql

Group=mysql

# Execute pre and post scripts as root

PermissionsStartOnly=true

# Needed to create system tables etc.

#ExecStartPre=/usr/bin/mysql-systemd-start pre

# Start main service

ExecStart=/usr/local/mysql/bin/mysqld_safe --relay-log-purge=0

# Don't signal startup success before a ping works

#ExecStartPost=/usr/bin/mysql-systemd-start post

# Give up if ping don't get an answer

TimeoutSec=600

Restart=always

PrivateTmp=false

不自动清理relay log 用作业的方式清理

清理时调用 mha_node 工具 purge_relay_logs

cat purge_relay_log.sh 

#!/bin/bash

user=root

passwd=123456

port=3306

log_dir='/data/masterha/log'

work_dir='/data'

purge='/usr/local/bin/purge_relay_logs'

if [ ! -d $log_dir ]

then

   mkdir $log_dir -p

fi

$purge --user=$user --password=$passwd --disable_relay_log_purge --port=$port --workdir=$work_dir >> $log_dir/purge_relay_logs.log 2>&1

亿速云「云服务器」,即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘,价格低至29元/月。点击查看>>

推荐阅读:
  1. MHA高可用集群
  2. mysql之MHA架构

开发者交流群:

免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。

read mha only

上一篇:Django模型的_meta编程

下一篇:区块链项目CBT云比特矿机APP系统软件开发

相关阅读

您好,登录后才能下订单哦!

密码登录
登录注册
其他方式登录
点击 登录注册 即表示同意《亿速云用户服务条款》
开发者交流群×