centos 7 开始使用systemctl 管理服务
创新互联建站是专业的红河哈尼网站建设公司，红河哈尼接单;提供成都做网站、网站设计,网页设计,网站设计,建网站,PHP网站建设等专业做网站服务;采用PHP框架,可快速的进行红河哈尼网站开发网页制作和功能扩展;专业做搜索引擎喜爱的网站,专业的做网站团队,希望更多企业前来合作!
服务脚本目录 /etc/systemd/system/MySQL.service
脚本如下：
#
# 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=/application/mysql/bin/mysqld_safe
# 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
---
mysqld_pre_systemd (RPM platforms), mysql-system-start (Debian platforms): Support script for the unit file. This script assists in creating the error log file only if the log location matches a pattern (/var/log/mysql*.log for RPM platforms, /var/log/mysql/*.log for Debian platforms). In other cases, the error log directory must be writable or the error log must be present and writable for the user running the mysqld process.
如果 mysql error log 设置在 /var/log 下
以下是percona mysql 设置
[root@c52cbe15cfa3 system]# cat mysqld.service
#
# Systemd service file for Percona Server
#
# # This service file is to start PS just with mysqld_safe
#
[Unit]
Description=MySQL Percona Server
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
Alias=mysql.service
[Service]
# Execute pre and post scripts as root
PermissionsStartOnly=true
# Needed to create system tables etc.
ExecStartPre=/usr/bin/mysql-systemd pre
# Start main service
ExecStart=/usr/bin/mysqld_safe
# Don't signal startup success before a ping works
ExecStartPost=/usr/bin/mysql-systemd post
# Give up if ping don't get an answer
TimeoutSec=600
Restart=always
PrivateTmp=false
[root@c52cbe15cfa3 system]# pw