centos7和centos6.5環境rpm方式安裝mysql5.7和mysql5.6詳解

centos環境安裝mysql5.7

其實不建議安裝mysql5.7 語法和配置可能和之前的版本區別較大，多坑，慎入

1.yum方式安裝(不推薦)

a.安裝mysql5.7 yum源

centos6:

wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
yum localinstall mysql-community-release-el6-5.noarch.rpm

centos7:

wget dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm
yum localinstall mysql57-community-release-el7-7.noarch.rpm

yum方式安裝：
yum install mysql-community-server

2.rpm方式安裝(推薦)
因yum源是在國外下載速度很是慢，建議直接下載後經過本地安裝

centos6:
mysql-community-client-5.7.15-1.el6.x86_64.rpm
mysql-community-common-5.7.15-1.el6.x86_64.rpm
mysql-community-libs-5.7.15-1.el6.x86_64.rpm
mysql-community-server-5.7.15-1.el6.x86_64.rpm

centos7:
mysql-community-client-5.7.15-1.el7.x86_64.rpm
mysql-community-common-5.7.15-1.el7.x86_64.rpm
mysql-community-libs-5.7.15-1.el7.x86_64.rpm
mysql-community-server-5.7.15-1.el7.x86_64.rpm

yum localinstall -y mysql-community*.rpm

報錯：
Error: Package: 2:postfix-2.6.6-6.el6_7.1.x86_64 (localyum)
           Requires: libmysqlclient.so.16(libmysqlclient_16)(64bit)
           Removing: mysql-libs-5.1.71-1.el6.x86_64 (@anaconda-CentOS-201311272149.x86_64/6.5)
               libmysqlclient.so.16(libmysqlclient_16)(64bit)
           Obsoleted By: mysql-community-libs-5.7.15-1.el6.x86_64 (/mysql-community-libs-5.7.15-1.el6.x86_64)
               Not found
           Updated By: mysql-libs-5.1.73-7.el6.x86_64 (localyum)
               libmysqlclient.so.16(libmysqlclient_16)(64bit)
Error: Package: 2:postfix-2.6.6-6.el6_7.1.x86_64 (localyum)
           Requires: libmysqlclient.so.16()(64bit)
           Removing: mysql-libs-5.1.71-1.el6.x86_64 (@anaconda-CentOS-201311272149.x86_64/6.5)
               libmysqlclient.so.16()(64bit)
           Obsoleted By: mysql-community-libs-5.7.15-1.el6.x86_64 (/mysql-community-libs-5.7.15-1.el6.x86_64)
               Not found
           Updated By: mysql-libs-5.1.73-7.el6.x86_64 (localyum)
               libmysqlclient.so.16()(64bit)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

 解決辦法：
rpm -e --nodeps mysql-libs-5.1.71-1.el6.x86_64

1）默認 root 密碼爲空，其實不爲空，使用 mysql -u root -p 進行登陸失敗
2)mysql_secure_installation這個初始化也不行

直接編輯mysql配置文件
vim /etc/my.cnf
加入
skip-grant-tables
注意：要加在[mysqld]的位置

重啓數據庫

#進入 mysql控制檯

# mysql

可能的報錯：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (111)

解決辦法：加上-h127.0.0.1
[root@node2 bin]# mysql -h127.0.0.1 -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.15 MySQL Community Server (GPL)


Copyright (c) 2000, 2016, 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 |
| sys                |
+--------------------+
4 rows in set (0.13 sec)

>use mysql;

# 修改密碼
>update user set authentication_string = password('yourpasswd'), password_expired = 'N', password_last_changed = now() where user = 'root';

刪掉skip-grant-tables，再次重啓便可

添加用戶時，報錯，是由於密碼策略的問題，咱們只是測試，密碼不須要那麼複雜

mysql> grant all privileges on test.* to jack@'%' identified by "test";

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

修改密碼策略便可
mysql> set global validate_password_policy=0;

mysql5.7開發環境的配置示例：

[mysqld]

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
max_connections=1024

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_UNSIGNED_SUBTRACTION"
[client]
default-character-set = utf8mb4

[mysql]
default-character-set = utf8mb4

[mysqld]
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation_server = utf8mb4_general_ci
init_connect='SET NAMES utf8mb4'

ucloud mysql5.7配置：

[client]
default-character-set = utf8mb4
[mysql]
default-character-set = utf8mb4
[mysqld]
back_log = 2000
basedir = /opt/udb/program/mysql/mysql-5.7.12
bind-address = 127.0.0.1
binlog-format = MIXED
character-set-client-handshake = 0
character_set_server = utf8mb4
datadir = /opt/udb/instance/mysql-5.7/xxxxxxxx/data
event_scheduler = ON
expire_logs_days = 7
general-log-file = /opt/udb/instance/mysql-5.7/xxxxxxxx/log/mysqld.log
init_connect = 'SET NAMES utf8mb4'
innodb_buffer_pool_size = 377487360
innodb_data_file_path = ibdata1:100M:autoextend
innodb_data_home_dir = /opt/udb/instance/mysql-5.7/xxxxxxxx/data
innodb_file_per_table = 1
innodb_flush_log_at_trx_commit = 2
innodb_flush_method = O_DIRECT
innodb_io_capacity = 2000
innodb_log_buffer_size = 8388608
innodb_log_file_size = 512M
innodb_log_files_in_group = 2
innodb_log_group_home_dir = /opt/udb/instance/mysql-5.7/xxxxxxxx/data
innodb_max_dirty_pages_pct = 50
innodb_open_files = 1024
innodb_read_io_threads = 8
innodb_thread_concurrency = 20
innodb_write_io_threads = 8
key_buffer_size = 33554432
local_infile = 1
log-bin = /opt/udb/instance/mysql-5.7/xxxxxxxx/binlog/mysql-bin.log
log-error = /opt/udb/instance/mysql-5.7/xxxxxxxx/log/mysqld.log
log_bin_trust_function_creators = 1
log_output = TABLE
long_query_time = 3
max_allowed_packet = 16777216
max_connect_errors = 1000000
max_connections = 2000
myisam_sort_buffer_size = 8388608
net_buffer_length = 8192
performance_schema = 0
performance_schema_max_table_instances = 200
pid-file = /opt/udb/instance/mysql-5.7/xxxxxxxx/mysqld.pid
port = 3306
query_cache_size = 16777216
read_buffer_size = 262144
read_rnd_buffer_size = 524288
relay-log = /opt/udb/instance/mysql-5.7/xxxxxxxx/relaylog/mysql-relay.log
secure-file-priv = /opt/udb/instance/mysql-5.7/xxxxxxxx/tmp
server-id = 2130706433
skip-slave-start
skip_name_resolve
slave-load-tmpdir = /opt/udb/instance/mysql-5.7/xxxxxxxx/tmp
slave-parallel-type = LOGICAL_CLOCK
slave_parallel_workers = 8
slow-query-log-file = /opt/udb/instance/mysql-5.7/xxxxxxxx/log/mysql-slow.log
slow_query_log = 1
socket = /opt/udb/instance/mysql-5.7/xxxxxxxx/mysqld.sock
sort_buffer_size = 524288
sql_mode = STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_UNSIGN
sync_binlog = 1
table_open_cache = 128
thread_cache_size = 50
tmpdir = /opt/udb/instance/mysql-5.7/xxxxxxxx/tmp
user = mysql
[mysqld_safe]
log-error = /opt/udb/instance/mysql-5.7/xxxxxxxx/log/mysqld.log
pid-file = /opt/udb/instance/mysql-5.7/xxxxxxxx/mysqld.pid

centos6.5環境安裝mysql5.6

操做系統：centos6.5 x86_64


1.檢查下linux是否是已經安裝了mysql
rpm -qa | grep -i mysql


#若是安裝了先卸載舊的版本    
rpm -e --nodeps mysql...


2.下載須要的安裝包，下載地址：
http://dev.mysql.com/downloads/mysql/5.6.html#downloads


MySQL-client-5.6.34-1.el6.x86_64.rpm
MySQL-devel-5.6.34-1.el6.x86_64.rpm
MySQL-server-5.6.34-1.el6.x86_64.rpm


所有安裝
rpm -ivh MySQL-*.rpm


3.修改配置文件位置並作相關設置

cp /usr/share/mysql/my-default.cnf /etc/my.cnf
vi /etc/my.cnf

若是以前的版本有安裝，須要重置root密碼，能夠在my.cnf的mysqld步伐加入，重啓mysql，不輸入密碼便可進數據庫
skip-grant-tables

密碼默認位置：

# cat /root/.mysql_secret 4.初始化MySQL及設置密碼 /usr/bin/mysql_install_db service mysql start 可能碰到的錯誤： 明明已經修改了mysql.user表中的root密碼，執行命令報錯： mysql> show databases; ERROR 1820 (HY000): You must SET PASSWORD before executing this statement mysql> use mysql; ERROR 1820 (HY000): You must SET PASSWORD before executing this statement 解決辦法： mysql> SET PASSWORD = PASSWORD('123'); Query OK, 0 rows affected (0.00 sec)