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3分钟搞定MySQL5.7安装

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发表于 2018-10-17 23:09:02 | 显示全部楼层 |阅读模式
1.下载MySQL5.7二进制版本
mkdir /opt/mysqlcd /opt/mysqlwget http://downloads.mysql.com/arc ... ar.gz
2.解压MySQL5.7到/opt/mysql下
tar zxf mysql-5.7.9-linux-glibc2.5-x86_64.tar.gz

3. 创建一个软连接,方便升级
cd /usr/local
ln -s /opt/mysql/mysql-5.7.9-linux-glibc2.5-x86_64 mysql

4. 创建MySQl启动用户和组
groupadd mysql
useradd -d /usr/local/mysql -g mysql -s /sbin/nologin mysql
chown -R mysql:mysql /usr/local/mysql

5. 创建基本目录
mkdir -p /data/mysql/mysql3307/{data,logs,tmp}
chown -R mysql:mysql /data/mysql/mysql3307

6. 创建my.cnf配置文件(见附件)
vim /data/mysql/mysql3307/my.cnf

7. 初始化数据库
·注意MySQL5.7初始化已经融合到bin/mysqld命令中,通过“--initialize”来完成初始化,更多详细的命令,可以执行下面的命令来查看·
/usr/local/mysql/bin/mysqld --verbose --help|less

本例中数据库初始化命令如下(它将没有任何的输出,但是你可以从日志进行查看):
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my.cnf --initialize

8. 设置环境变量
echo "export PATH=$PATH:/usr/local/mysql/bin" >> /etc/profilesource /etc/profile

9. 启动MySQL
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my.cnf &

10. 修改MySQL的root用户密码
初始完后需要用户自行更改root用户密码,默认会生成一个随机密码,可在error.log里找到。否则执行“mysql -S /tmp/mysql3307.sock -u root -p”将报下面的错误:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

这时候我们需要关闭MySQL数据库,执行下面的命令更改MySQL root的初始化密码:
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql3307/my.cnf --skip-grant-tables &
mysql -S /tmp/mysql3307.sock
>update mysql.user set authentication_string=password('cloud-ark') where user='root' and host='localhost';
>flush privileges;
>\q

关闭MySQL数据库,然后使用mysqld启动数据库
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/mysql3307/my.cnf &

启动完毕后,如果直接执行“/usr/local/mysql/bin/mysql -S /tmp/mysql3307.sock -u root -p”,将报下面的错误:
ERROR 1862 (HY000): Your password has expired. To log in you must change it using a client that supports expired passwords.

这时候需要执行下面的命令对数据库进行密码更改
/usr/local/mysql/bin/mysql -S /tmp/mysql3307.sock -u root -p --connect-expired-password>set password=password('3wedu.net');>flush privileges;>\q

更改完成后,就可以使用下面的命令直接登录了
/usr/local/mysql/bin/mysql -S /tmp/mysql3307.sock -u root -p

11. 配置参考文件:my.cnf
#my.cnf
[client]
port            = 3307
socket          = /tmp/mysql3307.sock

[mysql]
prompt="\\u@\\h:\p  \\R:\\m:\\s [\\d]>"
#tee=/data/mysql/mysql_3306/data/query.log
no-auto-rehash

[mysqld_multi]
mysqld     = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
user       = zhangdh
password   = zhangdh1113
log        = /data/mysql/mysql3307/logs/multi.log
#tcp-ip

[mysqld]
#misc
user = mysql
basedir = /usr/local/mysql
datadir = /data/mysql/mysql3307/data
port = 3307
socket = /tmp/mysql3307.sock
event_scheduler = 0

#tmp
tmpdir=/data/mysql/mysql3307/tmp

#timeout
interactive_timeout = 300
wait_timeout = 300

#character set
character-set-server = utf8
open_files_limit = 65535
max_connections = 100
max_connect_errors = 100000
skip-name-resolve = 1

#logs
log-output=file
slow_query_log = 1
slow_query_log_file = slow.log
log-error = error.log
log_warnings = 2
pid-file = mysql.pid
long_query_time = 1
#log-slow-admin-statements = 1
#log-queries-not-using-indexes = 1
log-slow-slave-statements = 1

#binlog
binlog_format = row
server-id = 2003307
log-bin = /data/mysql/mysql3307/logs/mysql-bin
binlog_cache_size = 4M
max_binlog_size = 1G
max_binlog_cache_size = 2G
sync_binlog = 0
expire_logs_days = 10

#relay log
skip_slave_start = 1
max_relay_log_size = 1G
relay_log_purge = 1
relay_log_recovery = 1
log_slave_updates

#slave-skip-errors=1032,1053,1062
explicit_defaults_for_timestamp=1

#buffers & cache
table_open_cache = 2048
table_definition_cache = 2048
table_open_cache = 2048
max_heap_table_size = 96M
sort_buffer_size = 2M
join_buffer_size = 2M
thread_cache_size = 256
query_cache_size = 0
query_cache_type = 0
query_cache_limit = 256K
query_cache_min_res_unit = 512
thread_stack = 192K
tmp_table_size = 96M
key_buffer_size = 8M
read_buffer_size = 2M
read_rnd_buffer_size = 16M
bulk_insert_buffer_size = 32M

#myisam
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1

#innodb
innodb_buffer_pool_size = 100M
innodb_buffer_pool_instances = 1
innodb_data_file_path = ibdata1:1G:autoextend
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 64M
innodb_log_file_size = 500M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 50
innodb_file_per_table = 1
innodb_rollback_on_timeout
innodb_status_file = 1
innodb_io_capacity = 2000
transaction_isolation = READ-COMMITTED
innodb_flush_method = O_DIRECT

#[mysqld3306]
#port            = 3306
#datadir = /data/mysql/mysql_3306/data
#socket = /tmp/mysql_3306.sock
#tmpdir=/data/mysql/mysql_3306/tmp
#server-id = 2143306
#log-bin = /data/mysql/mysql_3306/logs/mysql-bin

#[mysqld3316]
#port            = 3316
#datadir = /data/mysql/mysql_3316/data
#socket = /tmp/mysql_3316.sock
#tmpdir=/data/mysql/mysql_3316/tmp
#server-id = 2143316
#log-bin = /data/mysql/mysql_3316/logs/mysql-bin

[mysqld_safe]
#malloc-lib=/usr/local/mysql/lib/jmalloc.so
nice=-19
open-files-limit=65535

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