centos7systemctl管理mysql

centos 7 開始使用systemctl 管理服務(wù)

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服務(wù)腳本目錄 /etc/systemd/system/MySQL.service

腳本如下：

#

# 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 設(shè)置在 /var/log 下

以下是percona mysql 設(shè)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

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