CentOS7-Minimal安裝MySQL服務
CentOS7默認安裝的是Mariadb而不是mysql，而Mariadb是mysql的一個分支， 安裝mysql會覆蓋Mariadbhtml
1、下載MySQL官方的 Yum Repository
[root@localhost ~]# wget -i -c https://repo.mysql.com//mysql57-community-release-el7-10.noarch.rpm --2018-07-26 10:21:52-- https://repo.mysql.com//mysql57-community-release-el7-10.noarch.rpm 正在解析主機 repo.mysql.com (repo.mysql.com)... 104.88.152.154 正在鏈接 repo.mysql.com (repo.mysql.com)|104.88.152.154|:443... 已鏈接。 已發出 HTTP 請求，正在等待迴應... 200 OK 長度：25548 (25K) [application/x-redhat-package-manager] 正在保存至: 「mysql57-community-release-el7-10.noarch.rpm」 100%[========================================================================================>] 25,548 36.5KB/s 用時 0.7s 2018-07-26 10:21:58 (36.5 KB/s) - 已保存 「mysql57-community-release-el7-10.noarch.rpm」 [25548/25548]) -c: 沒有那個文件或目錄 在 -c 中找不到 URL。 FINISHED --2018-07-26 10:21:58-- Total wall clock time: 6.3s Downloaded: 1 files, 25K in 0.7s (36.5 KB/s) [root@localhost ~]#
2、安裝mysql57-community-release-el7-10.noarch.rpm包，安裝完以後會獲取mysql的yum repo源
[root@localhost ~]# yum -y install mysql57-community-release-el7-10.noarch.rpm 已加載插件：fastestmirror 正在檢查 mysql57-community-release-el7-10.noarch.rpm: mysql57-community-release-el7-10.noarch mysql57-community-release-el7-10.noarch.rpm 將被安裝 正在解決依賴關係 --> 正在檢查事務 ---> 軟件包 mysql57-community-release.noarch.0.el7-10 將被 安裝 --> 解決依賴關係完成 依賴關係解決 ================================================================================================================================== Package 架構 版本 源 大小 ================================================================================================================================== 正在安裝: mysql57-community-release noarch el7-10 /mysql57-community-release-el7-10.noarch 30 k 事務概要 ================================================================================================================================== 安裝 1 軟件包 總計：30 k 安裝大小：30 k Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安裝 : mysql57-community-release-el7-10.noarch 1/1 驗證中 : mysql57-community-release-el7-10.noarch 1/1 已安裝: mysql57-community-release.noarch 0:el7-10 完畢！ [root@localhost ~]# 查看mysql的yum repo源：mysql-community.repo 和 mysql-community-source.repo [root@localhost ~]# ls -l /etc/yum.repos.d/ 總用量 40 -rw-r--r--. 1 root root 1664 4月 29 00:35 CentOS-Base.repo -rw-r--r--. 1 root root 1309 4月 29 00:35 CentOS-CR.repo -rw-r--r--. 1 root root 649 4月 29 00:35 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 314 4月 29 00:35 CentOS-fasttrack.repo -rw-r--r--. 1 root root 630 4月 29 00:35 CentOS-Media.repo -rw-r--r--. 1 root root 1331 4月 29 00:35 CentOS-Sources.repo -rw-r--r--. 1 root root 4768 4月 29 00:35 CentOS-Vault.repo -rw-r--r--. 1 root root 1627 4月 5 2017 mysql-community.repo -rw-r--r--. 1 root root 1663 4月 5 2017 mysql-community-source.repo [root@localhost ~]#
3、使用yum安裝MySQL服務，此步驟會安裝mysql的依賴包，會浪費一些時間
[root@localhost ~]# yum -y install mysql-community-server
已加載插件：fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.zju.edu.cn
* extras: mirrors.zju.edu.cn
* updates: mirrors.shu.edu.cn
mysql-connectors-community | 2.5 kB 00:00:00
mysql-tools-community | 2.5 kB 00:00:00
mysql57-community | 2.5 kB 00:00:00
(1/3): mysql-connectors-community/x86_64/primary_db | 20 kB 00:00:05
(2/3): mysql-tools-community/x86_64/primary_db | 41 kB 00:00:06
(3/3): mysql57-community/x86_64/primary_db | 144 kB 00:00:06
正在解決依賴關係
--> 正在檢查事務
---> 軟件包 mysql-community-server.x86_64.0.5.7.22-1.el7 將被 安裝
--> 正在處理依賴關係 mysql-community-common(x86-64) = 5.7.22-1.el7，它被軟件包 mysql-community-server-5.7.22-1.el7.x86_64 須要
--> 正在處理依賴關係 mysql-community-client(x86-64) >= 5.7.9，它被軟件包 mysql-community-server-5.7.22-1.el7.x86_64 須要
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.
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---> 軟件包 perl-HTTP-Tiny.noarch.0.0.033-3.el7 將被 安裝
---> 軟件包 perl-parent.noarch.1.0.225-244.el7 將被 安裝
--> 解決依賴關係完成
依賴關係解決
==================================================================================================================================
Package 架構 版本 源 大小
==================================================================================================================================
正在安裝:
mysql-community-libs x86_64 5.7.22-1.el7 mysql57-community 2.1 M
替換 mariadb-libs.x86_64 1:5.5.56-2.el7
mysql-community-libs-compat x86_64 5.7.22-1.el7 mysql57-community 2.0 M
替換 mariadb-libs.x86_64 1:5.5.56-2.el7
mysql-community-server x86_64 5.7.22-1.el7 mysql57-community 165 M
爲依賴而安裝:
mysql-community-client x86_64 5.7.22-1.el7 mysql57-community 24 M
mysql-community-common x86_64 5.7.22-1.el7 mysql57-community 274 k
net-tools x86_64 2.0-0.22.20131004git.el7 base 305 k
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perl-threads x86_64 1.87-4.el7 base 49 k
perl-threads-shared x86_64 1.43-6.el7 base 39 k
事務概要
==================================================================================================================================
安裝 3 軟件包 (+30 依賴軟件包)
總下載量：205 M
Downloading packages:
警告：/var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.22-1.el7.x86_64.rpm: 頭V3 DSA/SHA1 Signature, 密鑰 ID 5072e1f5: NOKEY
mysql-community-common-5.7.22-1.el7.x86_64.rpm 的公鑰還沒有安裝
(1/33): mysql-community-common-5.7.22-1.el7.x86_64.rpm | 274 kB 00:00:07
(2/33): mysql-community-libs-5.7.22-1.el7.x86_64.rpm | 2.1 MB 00:01:00
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.
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(32/33): mysql-community-client-5.7.22-1.el7.x86_64.rpm | 24 MB 00:11:56
(33/33): mysql-community-server-5.7.22-1.el7.x86_64.rpm | 165 MB 01:05:31
----------------------------------------------------------------------------------------------------------------------------------
總計 52 kB/s | 205 MB 01:07:47
從 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql 檢索密鑰
導入 GPG key 0x5072E1F5:
用戶ID : "MySQL Release Engineering <mysql-build@oss.oracle.com>"
指紋 : a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5
軟件包 : mysql57-community-release-el7-10.noarch (installed)
來自 : /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安裝 : mysql-community-common-5.7.22-1.el7.x86_64 1/34
正在安裝 : mysql-community-libs-5.7.22-1.el7.x86_64 2/34
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.
.
正在安裝 : mysql-community-libs-compat-5.7.22-1.el7.x86_64 33/34
正在刪除 : 1:mariadb-libs-5.5.56-2.el7.x86_64 34/34
驗證中 : mysql-community-libs-compat-5.7.22-1.el7.x86_64 1/34
驗證中 : perl-HTTP-Tiny-0.033-3.el7.noarch 2/34
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.
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驗證中 : perl-Text-ParseWords-3.29-4.el7.noarch 32/34
驗證中 : mysql-community-client-5.7.22-1.el7.x86_64 33/34
驗證中 : 1:mariadb-libs-5.5.56-2.el7.x86_64 34/34
已安裝:
mysql-community-libs.x86_64 0:5.7.22-1.el7 mysql-community-libs-compat.x86_64 0:5.7.22-1.el7
mysql-community-server.x86_64 0:5.7.22-1.el7
做爲依賴被安裝:
mysql-community-client.x86_64 0:5.7.22-1.el7 mysql-community-common.x86_64 0:5.7.22-1.el7
net-tools.x86_64 0:2.0-0.22.20131004git.el7 perl.x86_64 4:5.16.3-292.el7
.
.
.
perl-threads.x86_64 0:1.87-4.el7 perl-threads-shared.x86_64 0:1.43-6.el7
替代:
mariadb-libs.x86_64 1:5.5.56-2.el7
完畢！
[root@localhost ~]#
4、啓動並查看Mysql狀態
[root@localhost ~]# systemctl start mysqld.service
[root@localhost ~]# systemctl status mysqld.service
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since 四 2018-07-26 12:21:21 CST; 11s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 4113 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
Process: 4040 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 4116 (mysqld)
CGroup: /system.slice/mysqld.service
└─4116 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
7月 26 12:21:06 localhost.localdomain systemd[1]: Starting MySQL Server...
7月 26 12:21:21 localhost.localdomain systemd[1]: Started MySQL Server.
[root@localhost ~]#
5、查看mysql初始化密碼
- 這次mysql初始化密碼爲：1#(EdfAGebE5
- 須要使用
grep "password" /var/log/mysqld.log命令查看
[root@localhost ~]# grep "password" /var/log/mysqld.log 2018-07-26T04:21:09.246395Z 1 [Note] A temporary password is generated for root@localhost: 1#(EdfAGebE5 [root@localhost ~]#
6、登錄mysql，並輸入出廠密碼
[root@localhost ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.22 Copyright (c) 2000, 2018, 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>
7、修改root用戶密碼
- mysql強制用戶必須修改密碼，否則只能登錄，卻不能操做數據庫（注意：在修改密碼時密碼複雜度不能太簡單，如：123456，可是咱們本身開發時又不想設置的太複雜，因此在修改密碼以前先修改密碼複雜度，如若不想修改密碼複雜度，請直接執行ALTER語句）
# 密碼能夠只有一種字符 mysql> set global validate_password_policy=0; Query OK, 0 rows affected (0.00 sec) # 密碼最小長度爲1 mysql> set global validate_password_length=1; Query OK, 0 rows affected (0.00 sec) mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'hadoop'; Query OK, 0 rows affected (0.00 sec) mysql>
8、修改默認字符集
- mysql默認的database和server字符集爲latin1，咱們須要把它修改成utf8
mysql> show variables like 'character%'; +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 8 rows in set (0.01 sec) mysql> set character_set_database=utf8; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> set character_set_server=utf8; Query OK, 0 rows affected (0.00 sec) mysql>
9、受權root用戶能夠從任意主機登陸（注意將hadoop換成本身的密碼）
mysql> grant all privileges on *.* to root@"%" identified by "hadoop" with grant option; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql>
10、退出並重啓mysql服務
mysql> quit Bye [root@localhost ~]# systemctl restart mysqld.service [root@localhost ~]#
11、開放端口3306端口
[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent success [root@localhost ~]# firewall-cmd --reload success [root@localhost ~]#
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