前言
大家应该都有所体会,随着硬件层面的发展,linux系统多核已经是普通趋势,而mysql是单进程多线程,所以先天上对多进程的利用不是很高,虽然5.6版本已经在这方面改进很多,但是也没有达到100%,所以为了充分的利用系统资源,mysql有自己的补充,那就是可以部署多实例,一个实例一个端口。
mysqld_multi设计用于管理在同一台机器上运行的多个mysqld进程,这些进程使用不同的socket文件并监听在不同的端口上。mysqld_multi可以批量启动、关闭、或者报告这些mysqld进程的状态。
下面话不多说了,来一起看看详细的介绍吧。
一、mysql编译安装:
cd /usr/local/src wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz tar zxvf mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz mv mysql-5.6.35-linux-glibc2.5-x86_64 /usr/local/mysql cd /usr/local/mysql useradd mysql mkdir -p /data/mysql chown -R mysql:mysql /data/mysql ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql cp support-files/my-default.cnf /etc/my.cnf cp support-files/mysql.server /etc/init.d/mysqld
二、准备第一个多实例3307
2.1 创建目录:
mkdir /usr/local/mysql3307 chown -R mysql.mysql /usr/local/mysql3307/ mkdir -p /data/mysql3307 chown -R mysql.mysql /data/mysql3307 mkdir -p /home/data/mysql3307/binlog chown -R mysql.mysql /home/data/mysql3307
2.2 配置文件
[root@zhdya01 ~]# vim /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin =/usr/local/mysql/bin/mysqladmin log =/var/log/mysqld_multi.log [mysqld1] socket = /usr/local/mysql3307/mysql.sock port = 3307 pid-file = /usr/local/mysql3307/mysql.pid datadir = /data/mysql3307 log_bin=/home/data/mysql3307/binlog server-id = 1 innodb_buffer_pool_size = 128M innodb_flush_log_at_trx_commit = 0
2.3 初始化数据库
/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql3307
三、准备第二个多实例3308
3.1 创建目录:
mkdir /usr/local/mysql3308 chown -R mysql.mysql /usr/local/mysql3308/ mkdir -p /data/mysql3308 chown -R mysql.mysql /data/mysql3308 mkdir -p /home/data/mysql3308/binlog chown -R mysql.mysql /home/data/mysql3308
3.2 配置文件
[root@zhdya01 ~]# vim /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install, and will be replaced if you # *** upgrade to a newer version of MySQL. [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin =/usr/local/mysql/bin/mysqladmin log =/var/log/mysqld_multi.log [mysqld1] socket = /usr/local/mysql3307/mysql.sock port = 3307 pid-file = /usr/local/mysql3307/mysql.pid datadir = /data/mysql3307 log_bin=/home/data/mysql3307/binlog server-id = 1 innodb_buffer_pool_size = 128M innodb_flush_log_at_trx_commit = 0 [mysqld2] socket = /usr/local/mysql3308/mysql.sock port = 3308 pid-file = /usr/local/mysql3308/mysql.pid datadir = /data/mysql3308 log_bin=/home/data/mysql3308/binlog server-id = 2 innodb_buffer_pool_size = 128M innodb_flush_log_at_trx_commit = 0
3.3 初始化数据库
/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql3308
四、启动多实例
/etc/init.d/mysqld start mysqld_multi --defaults-extra-file=/etc/my.cnf start 1,2 [root@zhdya01 bin]# !net netstat -lntp -lntp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1241/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2087/master tcp6 0 0 :::3306 :::* LISTEN 4406/mysqld tcp6 0 0 :::3307 :::* LISTEN 4197/mysqld tcp6 0 0 :::3308 :::* LISTEN 3359/mysqld tcp6 0 0 :::8080 :::* LISTEN 2222/java tcp6 0 0 :::22 :::* LISTEN 1241/sshd tcp6 0 0 ::1:25 :::* LISTEN 2087/master
五、查看启动状态
[root@zhdya01 bin]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running
六、停止多实例
[root@zhdya01 bin]# mysqld_multi --defaults-extra-file=/etc/my.cnf stop 1,2 [root@zhdya01 bin]# mysqld_multi --defaults-extra-file=/etc/my.cnf report Reporting MySQL servers MySQL server from group: mysqld1 is not running MySQL server from group: mysqld2 is not running
七、各自登录mysql实例
[root@zhdya01 bin]# mysql --socket=/usr/local/mysql3307/mysql.sock Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.35-log MySQL Community Server (GPL) Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,如果有疑问大家可以留言交流,谢谢大家对的支持。
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
《魔兽世界》大逃杀!60人新游玩模式《强袭风暴》3月21日上线
暴雪近日发布了《魔兽世界》10.2.6 更新内容,新游玩模式《强袭风暴》即将于3月21 日在亚服上线,届时玩家将前往阿拉希高地展开一场 60 人大逃杀对战。
艾泽拉斯的冒险者已经征服了艾泽拉斯的大地及遥远的彼岸。他们在对抗世界上最致命的敌人时展现出过人的手腕,并且成功阻止终结宇宙等级的威胁。当他们在为即将于《魔兽世界》资料片《地心之战》中来袭的萨拉塔斯势力做战斗准备时,他们还需要在熟悉的阿拉希高地面对一个全新的敌人──那就是彼此。在《巨龙崛起》10.2.6 更新的《强袭风暴》中,玩家将会进入一个全新的海盗主题大逃杀式限时活动,其中包含极高的风险和史诗级的奖励。
《强袭风暴》不是普通的战场,作为一个独立于主游戏之外的活动,玩家可以用大逃杀的风格来体验《魔兽世界》,不分职业、不分装备(除了你在赛局中捡到的),光是技巧和战略的强弱之分就能决定出谁才是能坚持到最后的赢家。本次活动将会开放单人和双人模式,玩家在加入海盗主题的预赛大厅区域前,可以从强袭风暴角色画面新增好友。游玩游戏将可以累计名望轨迹,《巨龙崛起》和《魔兽世界:巫妖王之怒 经典版》的玩家都可以获得奖励。
更新日志
- 凤飞飞《我们的主题曲》飞跃制作[正版原抓WAV+CUE]
- 刘嘉亮《亮情歌2》[WAV+CUE][1G]
- 红馆40·谭咏麟《歌者恋歌浓情30年演唱会》3CD[低速原抓WAV+CUE][1.8G]
- 刘纬武《睡眠宝宝竖琴童谣 吉卜力工作室 白噪音安抚》[320K/MP3][193.25MB]
- 【轻音乐】曼托凡尼乐团《精选辑》2CD.1998[FLAC+CUE整轨]
- 邝美云《心中有爱》1989年香港DMIJP版1MTO东芝首版[WAV+CUE]
- 群星《情叹-发烧女声DSD》天籁女声发烧碟[WAV+CUE]
- 刘纬武《睡眠宝宝竖琴童谣 吉卜力工作室 白噪音安抚》[FLAC/分轨][748.03MB]
- 理想混蛋《Origin Sessions》[320K/MP3][37.47MB]
- 公馆青少年《我其实一点都不酷》[320K/MP3][78.78MB]
- 群星《情叹-发烧男声DSD》最值得珍藏的完美男声[WAV+CUE]
- 群星《国韵飘香·贵妃醉酒HQCD黑胶王》2CD[WAV]
- 卫兰《DAUGHTER》【低速原抓WAV+CUE】
- 公馆青少年《我其实一点都不酷》[FLAC/分轨][398.22MB]
- ZWEI《迟暮的花 (Explicit)》[320K/MP3][57.16MB]