Linux下Centos7安装Mysql5.7.19的详细教程

1.下载mysql

网址： https://dev.mysql.com/downloads/mysql/

2.选择源码包，通用版点击下载

Linux下Centos7安装Mysql5.7.19的详细教程

直接下载就可以了，不用登录

Linux下Centos7安装Mysql5.7.19的详细教程

3.解压编译

1 2	`tar` `-zxvf mysql-5.7.19.tar.gz` `cd` `mysql-5.7.19.tar.gz`

创建数据目录 mkdir -p /data/mysql

先用cmake编译，没有这个命令需要先yum安装

									cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql/  #这个是编译安装之后的mysql目录所在地，可自行更改

									-DMYSQL_DATADIR=/data/mysql/    #这个指向数据目录

									-DMYSQL_UNIX_ADDR=/tmp/mysql.sock

									-DSYSCONFDIR=/usr/local/mysql-5.7/conf/

									-DWITH_MYISAM_STORAGE_ENGINE=1

									-DWITH_INNOBASE_STORAGE_ENGINE=1

									-DWITH_BLACKHOLE_STORAGE_ENGINE=1

									-DWITH_ARCHIVE_STORAGE_ENGINE=1

									-DWITH_MEMORY_STORAGE_ENGINE=1

									-DWITH_READLINE=1

									-DMYSQL_TCP_PORT=3306

									-DENABLED_LOCAL_INFILE=1

									-DDEFAULT_CHARSET=utf8

									-DDEFAULT_COLLATION=utf8_general_ci

									-DMYSQL_USER=mysql

									-DWITH_SSL=system

									-DWITH_ZLIB=system -DDOWNLOAD_BOOST=1 -DWITH_BOOST=/usr/local/boost #从MySQL 5.7.5开始Boost库是必需安装的

编译之后make && make install 漫长的等待....之后就安装完成了

安装完成之后路径/usr/local/ 下面会有一个目录 mysql，这个目录就是我编译安装设置的路径-

1	`DCMAKE_INSTALL_PREFIX=/usr/local/mysql/`

一般为了安全起见，我们都会创建一个mysql用户和mysql组，执行以下命令

									#添加用户组

									groupadd mysql

									#添加用户mysql 到用户组mysql

									useradd

									-g mysql mysql

给予mysql权限

									chown -R mysql:mysql mysql

									#添加用户组

									groupadd mysql

									#添加用户mysql 到用户组mysql

									useradd -g mysql mysql

给予mysql权限

1	`chown` `-R mysql:mysql mysql`

4.接下来配置启动向，设置开机启动

配置/ect/my.cnf，如果没有my.cnf可自行新建添加 , 仅供参考

									[client]

									ort = 3306

									ocket = /tmp/mysql.sock

									default-character-set = utf8mb4

									[mysqld]

									ort = 3306

									ocket = /tmp/mysql.sock

									asedir = /usr/local/mysql

									datadir = /data/mysql

									id-file = /data/mysql/mysql.pid

									user = mysql

									ind-address = 0.0.0.0

									erver-id = 1

									init-connect = 'SET NAMES utf8mb4'

									character-set-server = utf8mb4

									#skip-name-resolve

									#skip-networking

									ack_log = 300

									max_connections = 1000

									max_connect_errors = 6000

									open_files_limit = 65535

									table_open_cache = 128

									max_allowed_packet = 4M

									inlog_cache_size = 1M

									max_heap_table_size = 8M

									tmp_table_size = 16M

									read_buffer_size = 2M

									read_rnd_buffer_size = 8M

									ort_buffer_size = 8M

									join_buffer_size = 8M

									key_buffer_size = 4M

									thread_cache_size = 8

									query_cache_type = 1

									query_cache_size = 8M

									query_cache_limit = 2M

									ft_min_word_len = 4

									log_bin = mysql-bi

									inlog_format = mixed

									expire_logs_days = 30

									log_error = /data/mysql/mysql-error.log

									low_query_log = 1

									long_query_time = 1

									low_query_log_file = /data/mysql/mysql-slow.log

									erformance_schema = 0

									explicit_defaults_for_timestam

									#lower_case_table_names = 1

									kip-external-locking

									default_storage_engine = InnoDB

									#default-storage-engine = MyISAM

									innodb_file_per_table = 1

									innodb_open_files = 500

									innodb_buffer_pool_size = 64M

									innodb_write_io_threads = 4

									innodb_read_io_threads = 4

									innodb_thread_concurrency = 0

									innodb_purge_threads = 1

									innodb_flush_log_at_trx_commit = 2

									innodb_log_buffer_size = 2M

									innodb_log_file_size = 32M

									innodb_log_files_in_group = 3

									innodb_max_dirty_pages_pct = 90

									innodb_lock_wait_timeout = 120

									ulk_insert_buffer_size = 8M

									myisam_sort_buffer_size = 8M

									myisam_max_sort_file_size = 10G

									myisam_repair_threads = 1

									interactive_timeout = 28800

									wait_timeout = 28800

									[mysqldump]

									quick

									max_allowed_packet = 16M

									[myisamchk]

									key_buffer_size = 8M

									ort_buffer_size = 8M

									read_buffer = 4M

									write_buffer = 4M

接下来就执行初始化数据库语句：

注意 mysql_install_db 已经不再推荐使用了，建议改成 mysqld –initialize 完成实例初始化。

1	`/usr/local/mysql/bin/mysqld` `--initialize-insecure --user=mysql --basedir=/usr/local/mysql` `--datadir=/data/mysql`

这步很重要，如果没有初始化直接启动数据库会报错

ERROR! The server quit without updating PID file (/data/mysql/mysql.pid).

如果初始化失败或者报以下错误，就需要先清空你的/data/mysql目录了，因为mysql目录下面有数据所以初始化执行中止。

2017-08-29T13:39:47.241469Z 0 [ERROR] --initialize specified but the data directory has files in it. Aborting.2017-08-29T13:39:47.241536Z 0 [ERROR] Aborting

清空之后再重新初始化

1	`/usr/local/mysql/bin/mysqld` `--initialize-insecure --user=mysql --basedir=/usr/local/mysql` `--datadir=/data/mysql`

接下来可以启动mysql了

1	`ervice mysqld start`

登录测试

1	`/usr/local/mysql/bin/mysql` `-uroot -`

因为初始化--initialize-insecure 是默认没有密码的所以密码不用输入直接确定就行了；

假如登录报错

1	`ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)`

检查一下你启动数据库成功没可执行 ps -ef | grep mysql 看看进程是不是启动状态

空密码不安全所以我们还要设置密码，下面命令中的\"root\"就是设置密码区域，我的密码设置为root，可自行修改

1	`[root@localhost` `local]# /usr/local/mysql/bin/mysql -e "grant all privileges on . to root@'127.0.0.1' identified by \"root\" with grant option;"[root@localhost local]# /usr/local/mysql/bin/mysql -e "grant all privileges on . to root@'localhost' identified by \"root\" with grant option;"`

接下来再登录测试一次密码修改成功没有就完成啦！

总结

以上所述是小编给大家介绍的Linux下Centos7安装Mysql5.7.19的详细教程，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！

原文链接：http://www.cnblogs.com/JahanGu/archive/2017/08/29/7448910.html