mysql5.7.21源碼安裝

1.下載安裝包

MySQL 官方下載地址： https://dev.mysql.com/downloads/mysql/ 

MySQL 5.7官方安裝文檔： https://dev.mysql.com/doc/refman/5.7/en/binary-installation.html

 

2.安裝依賴包

MySQL依賴於libaio 庫。若是這個庫沒有在本地安裝，數據目錄初始化和後續的服務器啓動步驟將會失敗。請使用適當的軟件包管理器進行安裝。例如，在基於Yum的系統上：

shell> yum search libaio 

shell> yum install libaio

 

3.建立一個mysql用戶和組

shell> groupadd mysql

shell> useradd -r -g mysql -s /bin/false mysql

 

4.解壓到指定目錄

shell> tar -zxvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz -C /usr/local

shell> cd /usr/local

shell> mv mysql-5.7.21-linux-glibc2.12-x86_64 mysql

 

5.配置數據庫目錄

數據目錄：/usr/local/mysql/data 

參數文件my.cnf：/usr/local/mysql/etc/my.cnf 

錯誤日誌log-error：/usr/local/mysql/log/mysql_error.log 

二進制日誌log-bin：/usr/local/mysql/log/mysql_bin.log 

慢查詢日誌slow_query_log_file：//usr/local/mysql/log/mysql_slow_query.log 

套接字socket文件：/usr/local/mysql/run/mysql.sock 

pid文件：/usr/local/mysql/run/mysql.pid 

 

shell> mkdir -p /usr/local/mysql/{data,log,etc,run}

shell> chown -R mysql:mysql /usr/local/mysql 

shell> chmod 750 /usr/local/mysql/{data,log,etc,run}

 

6.配置my.cnf文件

在/usr/local/mysql/etc/下建立my.cnf文件，加入以下參數，其餘參數根據須要配置

[client]

port = 3306

socket = /usr/local/mysql/run/mysql.sock

 

[mysqld]

port = 3306

socket = /usr/local/mysql/run/mysql.sock

pid_file = /usr/local/mysql/run/mysql.pid

datadir = /usr/local/mysql/data

default_storage_engine = InnoDB

max_allowed_packet = 128M

max_connections = 2048

open_files_limit = 65535

 

skip-name-resolve

lower_case_table_names=1

 

character-set-server = utf8mb4

collation-server = utf8mb4_unicode_ci

init_connect='SET NAMES utf8mb4'

 

 

innodb_buffer_pool_size = 128M

innodb_log_file_size = 128M

innodb_file_per_table = 1

innodb_flush_log_at_trx_commit = 0

 

 

key_buffer_size = 16M

 

log-error = /usr/local/mysql/log/mysql_error.log

log-bin = /usr/local/mysql/log/mysql_bin.log

slow_query_log = 1

slow_query_log_file = /usr/local/mysql/log/mysql_slow_query.log

long_query_time = 5

 

 

tmp_table_size = 16M

max_heap_table_size = 16M

query_cache_type = 0

query_cache_size = 0

 

server-id=1

 

7.設置臨時密碼

grep 'temporary password' /usr/local/mysql/log/mysql_error.log

 

8.初始化

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

 

9.將mysqld設置開啓自動啓動

 

cp /usr/local/mysql/support-files/mysql.server    /etc/init.d/mysqld

chkconfig --add mysqld

 

10.複製配置文件my.cnf

 

cp /usr/local/mysql/etc/my.cnf    /etc/my.cnf  (提示覆蓋就覆蓋)

 

11.啓動mysql服務

 

 

 

12.進入mysql

cd /usr/local/mysql/bin 

./ mysql -u root -p(臨時密碼)

 

13.修改密碼

從新設置密碼

SET PASSWORD FOR'root'@localhost=PASSWORD('admin');   #對應的換成你本身的密碼便可

1四、開啓遠程權限

 

grant all privileges on *.* to '新用戶名'@'%' identified by '新密碼';

flush privileges;

 

15.配置環境變量

 

vim /etc/profile

export PATH=/usr/local/mysql/bin:$PATH

source /etc/profile

 

實戰備註：

./mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

 

報錯解決方案

./bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

yum install -y libaio  //安裝後在初始化就OK了

 

cRowiC5?_mo_

linux mysql password

set password for 'root'@'localhost'=password('Jackphp123!')

 

錯誤提示：

 

[root@localhost support-files]# ./mysql.server start

 

Starting MySQL.2017-07-10T07:02:40.832128Z mysqld_safe error: log-error set to ‘/var/log/mariadb/mariadb.log‘, however file don‘t exists. Create writable for user ‘mysql‘.

 ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).

 解決方案：

 

由於前期未建立 /var/log/mariadb/mariadb.log‘ 下面的 mariadb目錄 ，mariadb.log 須要手工建立，完成 啓動成功。

缺乏libtinfo.so.5解決辦法 

在CentOS下，輸入命令

ln -s /usr/lib/libncurses.so.5 /usr/lib/libtinfo.so.5 

ln -s /usr/lib/libncurses.so.5 /lib/libtinfo.so.5  

安裝mysql後登陸提示：ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password:yes)

解決以下：

1.中止mysql服務

systemctl stop mysqld.service

 

2.修改配置文件無密碼登陸

vim  /etc/my.cnf

在最後加上

skip-grant-tables

保存

3.啓動mysql

systemctl  start  mysqld.service

 

4.登陸mysql

mysql -u root

注意這裏不要加-p

5.修改密碼，mysql5.7用此語法

use mysql;

update mysql.user set authentication_string=password('123456') where user='root' ;  

6.回到第二部把剛加的那句刪掉

保存，重啓mysql就能夠了

 

默認配置文件路徑： 

配置文件：/etc/my.cnf 

日誌文件：/var/log//var/log/mysqld.log 

服務啓動腳本：/usr/lib/systemd/system/mysqld.service 

socket文件：/var/run/mysqld/mysqld.pid

 

錯誤緣由：升級了mysql沒有update相應的mysql系統表結構，update完畢後重啓既可解決