【大資料】CentOS6.5安裝mysql5.6(靠譜！)
一、吐槽
我明明是跟著老師寫的書上一步一步來的，到最後出現了一堆錯誤，然後從網上找教程，網上那些人不知道咋想的，啥也往上貼，隨便一篇，除了自己能看懂沒幾個人能看懂的文章就貼到網上了。
結果就是，在原先錯誤的基礎上又一大堆錯。
於是，我把我所有操作過的檔案全部刪除了（一天之內操作過什麼檔案我基本上是能記住的，我記憶力超群，哈哈。）
當然，我敢刪是因為我覺得找到了一篇靠譜的文章，來自51CTO的
http://blog.51cto.com/10264683/2057472
這位肯定是一位大神了，因為他通篇文章沒說幾句話，就是默默的貼出程式碼，所以我斗膽藉著他的成果，加上我的一些廢話，發表於此，侵刪。
二、安裝
注：以下紅色字型都是終端命令，黑色正常字型為命令執行過程及結果
1、首先第一步，看一下有沒有安裝mysql （ V是大寫的 ）
[[email protected] /]# mysql -V
mysql Ver 14.14 Distrib 5.6.42, for Linux (x86_64) using EditLine wrapper
2、我這裡是安裝好了的，而且是5.6.42版本，如果你不是這個版本，想要使用這個版本，那麼就先把你電腦上的mysql給解除安裝掉。
[[email protected] etc]# yum -y remove mysql
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Remove Process
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.6.42-2.el6 will be erased
--> Processing Dependency: mysql-community-client(x86-64) >= 5.6.10 for package: mysql-community-server-5.6.42-2.el6.x86_64
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.6.42-2.el6 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Removing:
mysql-community-client x86_64 5.6.42-2.el6 @mysql56-community 83 M
Removing for dependencies:
mysql-community-server x86_64 5.6.42-2.el6 @mysql56-community 242 M
Transaction Summary
================================================================================
Remove 2 Package(s)
Installed size: 325 M
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Erasing : mysql-community-server-5.6.42-2.el6.x86_64 1/2
warning: erase unlink of /etc/my.cnf failed: No such file or directory
Erasing : mysql-community-client-5.6.42-2.el6.x86_64 2/2
Verifying : mysql-community-client-5.6.42-2.el6.x86_64 1/2
Verifying : mysql-community-server-5.6.42-2.el6.x86_64 2/2
Removed:
mysql-community-client.x86_64 0:5.6.42-2.el6
Dependency Removed:
mysql-community-server.x86_64 0:5.6.42-2.el6
Complete!
3、看到上面的Complete！就代表解除安裝完成了。
接下來就要安裝MySQL5.6了（複製貼上下面的命令就行，不過注意，中間有讓確認是否安裝，需要輸入一次或者兩次小寫的y）
[[email protected] /]#rpm -Uvh http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
Retrieving http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
Preparing... ########################################### [100%]
package mysql-community-release-el6-5.noarch is already installed
[[email protected] /]# yum install mysql-community-server
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.huaweicloud.com
* updates: mirror.bit.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.6.42-2.el6 will be installed
--> Processing Dependency: mysql-community-client(x86-64) >= 5.6.10 for package: mysql-community-server-5.6.42-2.el6.x86_64
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.6.42-2.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
mysql-community-server x86_64 5.6.42-2.el6 mysql56-community 55 M
Installing for dependencies:
mysql-community-client x86_64 5.6.42-2.el6 mysql56-community 18 M
Transaction Summary
================================================================================
Install 2 Package(s)
Total download size: 73 M
Installed size: 325 M
Is this ok [y/N]: y （←←←這裡有個小寫的y需要輸入）
Downloading Packages:
(1/2): mysql-community-client-5.6.42-2.el6.x86_64.rpm | 18 MB 00:12
(2/2): mysql-community-server-5.6.42-2.el6.x86_64.rpm | 55 MB 00:38
--------------------------------------------------------------------------------
Total 1.0 MB/s | 73 MB 01:13
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : mysql-community-client-5.6.42-2.el6.x86_64 1/2
Installing : mysql-community-server-5.6.42-2.el6.x86_64 2/2
Verifying : mysql-community-client-5.6.42-2.el6.x86_64 1/2
Verifying : mysql-community-server-5.6.42-2.el6.x86_64 2/2
Installed:
mysql-community-server.x86_64 0:5.6.42-2.el6
Dependency Installed:
mysql-community-client.x86_64 0:5.6.42-2.el6
Complete!
4、看到上面的Complete！就代表安裝完成了。
接下來看一下自己安裝的版本吧。（ V是大寫的）
[[email protected] /]# mysql -V
mysql Ver 14.14 Distrib 5.6.42, for Linux (x86_64) using EditLine wrapper
5、開啟mysql服務
[[email protected] /]# /etc/init.d/mysqld start （ 也可以使用 service mysqld start ）
Initializing MySQL database: 2018-11-04 01:24:09 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-11-04 01:24:09 0 [Note] Ignoring --secure-file-priv value as server is running with --bootstrap.
2018-11-04 01:24:09 0 [Note] /usr/sbin/mysqld (mysqld 5.6.42) starting as process 3781 ...
2018-11-04 01:24:09 3781 [Note] InnoDB: Using atomics to ref count buffer pool pages
2018-11-04 01:24:09 3781 [Note] InnoDB: The InnoDB memory heap is disabled
2018-11-04 01:24:09 3781 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-11-04 01:24:09 3781 [Note] InnoDB: Memory barrier is not used
2018-11-04 01:24:09 3781 [Note] InnoDB: Compressed tables use zlib 1.2.11
2018-11-04 01:24:09 3781 [Note] InnoDB: Using Linux native AIO
2018-11-04 01:24:09 3781 [Note] InnoDB: Using CPU crc32 instructions
2018-11-04 01:24:09 3781 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2018-11-04 01:24:09 3781 [Note] InnoDB: Completed initialization of buffer pool
2018-11-04 01:24:09 3781 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2018-11-04 01:24:09 3781 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2018-11-04 01:24:09 3781 [Note] InnoDB: Database physically writes the file full: wait...
2018-11-04 01:24:09 3781 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2018-11-04 01:24:10 3781 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2018-11-04 01:24:10 3781 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2018-11-04 01:24:10 3781 [Warning] InnoDB: New log files created, LSN=45781
2018-11-04 01:24:10 3781 [Note] InnoDB: Doublewrite buffer not found: creating new
2018-11-04 01:24:10 3781 [Note] InnoDB: Doublewrite buffer created
2018-11-04 01:24:10 3781 [Note] InnoDB: 128 rollback segment(s) are active.
2018-11-04 01:24:10 3781 [Warning] InnoDB: Creating foreign key constraint system tables.
2018-11-04 01:24:10 3781 [Note] InnoDB: Foreign key constraint system tables created
2018-11-04 01:24:10 3781 [Note] InnoDB: Creating tablespace and datafile system tables.
2018-11-04 01:24:10 3781 [Note] InnoDB: Tablespace and datafile system tables created.
2018-11-04 01:24:10 3781 [Note] InnoDB: Waiting for purge to start
2018-11-04 01:24:11 3781 [Note] InnoDB: 5.6.42 started; log sequence number 0
2018-11-04 01:24:11 3781 [Note] Binlog end
2018-11-04 01:24:11 3781 [Note] InnoDB: FTS optimize thread exiting.
2018-11-04 01:24:11 3781 [Note] InnoDB: Starting shutdown...
2018-11-04 01:24:13 3781 [Note] InnoDB: Shutdown completed; log sequence number 1625977
2018-11-04 01:24:13 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-11-04 01:24:13 0 [Note] Ignoring --secure-file-priv value as server is running with --bootstrap.
2018-11-04 01:24:13 0 [Note] /usr/sbin/mysqld (mysqld 5.6.42) starting as process 3803 ...
2018-11-04 01:24:13 3803 [Note] InnoDB: Using atomics to ref count buffer pool pages
2018-11-04 01:24:13 3803 [Note] InnoDB: The InnoDB memory heap is disabled
2018-11-04 01:24:13 3803 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-11-04 01:24:13 3803 [Note] InnoDB: Memory barrier is not used
2018-11-04 01:24:13 3803 [Note] InnoDB: Compressed tables use zlib 1.2.11
2018-11-04 01:24:13 3803 [Note] InnoDB: Using Linux native AIO
2018-11-04 01:24:13 3803 [Note] InnoDB: Using CPU crc32 instructions
2018-11-04 01:24:13 3803 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2018-11-04 01:24:13 3803 [Note] InnoDB: Completed initialization of buffer pool
2018-11-04 01:24:13 3803 [Note] InnoDB: Highest supported file format is Barracuda.
2018-11-04 01:24:13 3803 [Note] InnoDB: 128 rollback segment(s) are active.
2018-11-04 01:24:13 3803 [Note] InnoDB: Waiting for purge to start
2018-11-04 01:24:13 3803 [Note] InnoDB: 5.6.42 started; log sequence number 1625977
2018-11-04 01:24:13 3803 [Note] Binlog end
2018-11-04 01:24:13 3803 [Note] InnoDB: FTS optimize thread exiting.
2018-11-04 01:24:13 3803 [Note] InnoDB: Starting shutdown...
2018-11-04 01:24:14 3803 [Note] InnoDB: Shutdown completed; log sequence number 1625987
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h master password 'new-password'
Alternatively you can run:
/usr/bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.
See the manual for more instructions.
Please report any problems at http://bugs.mysql.com/
The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at http://shop.mysql.com
Note: new default config file not created.
Please make sure your config file is current
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server
[ OK ]
Starting mysqld: [ OK ]
6、如果能看到兩個OK，就代表mysql服務啟動成功了，接下來嘗試進入mysql資料庫
[[email protected] /]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.42 MySQL Community Server (GPL)
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> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)
7、如果能看到databases的資訊，就代表mysql資料庫是可以使用了。只不過現在需要修改一下密碼。
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
8、把root使用者的密碼改為jmxx
mysql> update user set password=PASSWORD("jmxx")where User='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> quit;
Bye
9、重啟mysql服務，老師書上給的是下面這個命令，我執行了一下是失敗的，你可以嘗試一下
[[email protected] /]# service mysql restart
mysql: unrecognized service
10、下面這個才是真正的重啟mysql服務的命令（比上面多個d）
[[email protected] /]# service mysqld restart
Stopping mysqld: [ OK ]
Starting mysqld: [ OK ]
11、如果出現了兩個OK，之後就是登陸mysql客戶端了
[[email protected] /]# mysql -uroot -p
Enter password: （這裡輸入jmxx，密碼是不顯示的）
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.42 MySQL Community Server (GPL)
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> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)
12、恭喜！你已經開啟了屬於你的mysql之旅~~~
.
看完如果覺得不錯，留個贊再走。
.