由於分散式系統架構中含有mysql中介軟體，用以元資料的儲存。搞了一個社群版的mysql，版本號5.7.13，GA版本（整體可用）。
網路好的時候 dev.mysql.com 訪問很流暢，下載 檔案mysql-community-server-5.7.13-1.el7.x86_64.rpm ，但是安裝過程需要多個rpm包，反覆多次，最後乖乖的下載 mysql-5.7.9-1.el7.x86_64.rpm-bundle.tar （500M）
http://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.9-1.el7.x86_64.rpm-bundle.tar
1、安裝 mysql-community-common-5.7.9-1.el7.x86_64.rpm 的時候提示，有檔案衝突，如：

warning: mysql-community-common-5.7.9-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ################################# [100%] file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.9-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
2、出現以上資訊說明有其他版本的mysql類庫存在，需要刪除後再安裝
檢查安裝包：
[

[email protected] mysql]# rpm -qa | grep ‘mariadb-libs’
mariadb-libs-5.5.41-2.el7_0.x86_64

解除安裝舊版本：
[[email protected] mysql]# rpm -e mariadb-libs-5.5.41-2.el7_0.x86_64 –nodeps

3、安裝 mysql-community-server-5.7.9-1.el7.x86_64.rpm
安裝過程如下：
[[email protected] mysql]# rpm -ivh mysql-community-common-5.7.9-1.el7.x86_64.rpm warning: mysql-community-common-5.7.9-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ################################# [100%] Updating / installing… 1:mysql-community-common-5.7.9-1.el################################# [100%] [

[email protected] mysql]# rpm -ivh mysql-community-libs- mysql-community-libs-5.7.9-1.el7.x86_64.rpm mysql-community-libs-compat-5.7.9-1.el7.x86_64.rpm [[email protected] mysql]# rpm -ivh mysql-community-libs-5.7.9-1.el7.x86_64.rpm warning: mysql-community-libs-5.7.9-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ################################# [100%] Updating / installing… 1:mysql-community-libs-5.7.9-1.el7 ################################# [100%] [[email protected] mysql]# rpm -ivh mysql-community-client-5.7.9-1.el7.x86_64.rpm warning: mysql-community-client-5.7.9-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ################################# [100%] Updating / installing… 1:mysql-community-client-5.7.9-1.el################################# [100%] [[email protected] mysql]# rpm -ivh mysql-community-server-5.7.9-1.el7.x86_64.rpm warning: mysql-community-server-5.7.9-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ################################# [100%] Updating / installing… 1:mysql-community-server-5.7.9-1.el################################# [100%]

4、初始化mysql ：
[[email protected] mysql]# mysqld –initialize
5、獲取初始化密碼：
[[email protected] mysql]# more /var/log/mysqld.log
2016-07-21T06:08:10.180268Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use –explicit_defaults_for_timestamp server op
tion (see documentation for more details).
2016-07-21T06:08:11.836294Z 0 [Warning] InnoDB: New log files created, LSN=45790
2016-07-21T06:08:12.113570Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2016-07-21T06:08:12.190776Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started
. Generating a new UUID: 812d4953-4f09-11e6-87e4-005056b00910.
2016-07-21T06:08:12.195975Z 0 [Warning] Gtid table is not ready to be used. Table ‘mysql.gtid_executed’ cannot be opened.
2016-07-21T06:08:12.197226Z 1 [Note] A temporary password is generated for [email protected]: b=/wpqyRK3hu
[[email protected] mysql]# chown mysql:mysql /var/lib/mysql -R
[[email protected] mysql]# su - mysql
[[email protected] mysql]# systemctl start mysqld.service
[[email protected] mysql]# cd
[[email protected] ~]# more .
./ .bash_history .bash_profile .cache/ .cshrc .tcshrc
../ .bash_logout .bashrc .config/ .ssh/ .viminfo
[[email protected] ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.9

Copyright (c) 2000, 2015, 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;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> use mysql
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

修改密碼：

mysql> alter user ‘root’@’localhost’ identified by ‘passwd’;
Query OK, 0 rows affected (0.00 sec)

mysql> show databases;
+——————–+
| Database |
+——————–+
| information_schema |
| mysql |
| performance_schema |
| sys |
+——————–+
4 rows in set (0.00 sec)

mysql>