centos7 安装mysql5.6 以及部分优化

Posted 2020-09-28

hostnamectl  set-hostname  mysql 
[[email protected] ~]# rpm -qa  mariadb*
mariadb-libs-5.5.44-2.el7.centos.x86_64
[[email protected] ~]# yum remove  mariadb-libs-5.5.44-2.el7.centos.x86_64
[[email protected] ~]#yum install -y perl perl-devel perl-Module-Install.noarch
[[email protected] ~]# rpm  -ivh  MySQL-devel-5.6.29-1.rhel5.x86_64.rpm
warning: MySQL-devel-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
package MySQL-devel-5.6.29-1.rhel5.x86_64 is already installed
[[email protected] ~]# rpm -ivh  MySQL-client-5.6.29-1.rhel5.x86_64.rpm 
warning: MySQL-client-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
package MySQL-client-5.6.29-1.rhel5.x86_64 is already installed
[[email protected] ~]# rpm -ivh MySQL-server-5.6.29-1.rhel5.x86_64.rpm 
warning: MySQL-server-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
package MySQL-server-5.6.29-1.rhel5.x86_64 is already installed
[[email protected] ~]# 
You will find that password in ‘/root/.mysql_secret‘.
[[email protected] ~]# service mysql start
Starting MySQL. SUCCESS! 
[[email protected] ~]# 
[[email protected] ~]# /usr/bin/mysql_secure_installation  #初始化密码 设置自己密码

需要把默认 的 --datadir 的 那个mysql拷贝到 /data 下 并赋予mysql的权限

[[email protected] ~]# ps -ef |grep  mysql
root      12365      1  0 23:28 pts/1    00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/data/mysql --pid-file=/var/lib/mysql/mysql.pid
mysql     13171  12365  0 23:28 pts/1    00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/data/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/data/mysql/mysql-error.log --open-files-limit=65535 --pid-file=/var/lib/mysql/mysql.pid --socket=/data/socket/mysql.sock --port=3306
root      13208   2804  0 23:33 pts/1    00:00:00 grep --color=auto mysql
[[email protected] ~]#

看一下my.cnf

[[email protected] ~]# cat  /etc/my.cnf
[client]
port = 3306  
socket = /data/socket/mysql.sock 
default-character-set = utf8
[mysqld]
port = 3306
character-set-server=utf8
socket = /data/socket/mysql.sock
#basedir = /usr/local/mysql
datadir = /data/mysql
pid-file = /var/lib/mysql/mysql.pid
user = mysql
bind-address = 0.0.0.0
server-id = 1
skip-name-resolve
#skip-networking
back_log = 600
max_connections = 1000
max_connect_errors = 6000
open_files_limit = 65535
table_open_cache = 128
max_allowed_packet = 4M
binlog_cache_size = 1M
max_heap_table_size = 8M
tmp_table_size = 16M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 8M
key_buffer_size = 4M
thread_cache_size = 8
query_cache_size = 8M
query_cache_limit = 2M
ft_min_word_len = 4
log_bin = mysql-bin
binlog_format = mixed
expire_logs_days = 30
log_error = /data/mysql/mysql-error.log
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/mysql/mysql-slow.log
performance_schema = 0
explicit_defaults_for_timestamp
#lower_case_table_names = 1
skip-external-locking
default_storage_engine = InnoDB
#default-storage-engine = MyISAM
innodb_file_per_table = 1
innodb_open_files = 500
innodb_buffer_pool_size = 64M
innodb_write_io_threads = 4
innodb_read_io_threads = 4
innodb_thread_concurrency = 0
innodb_purge_threads = 1
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 32M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
bulk_insert_buffer_size = 8M
myisam_sort_buffer_size = 8M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
interactive_timeout = 28800
wait_timeout = 28800
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer_size = 8M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M

[[email protected] ~]#

修改socket的配置可以先停止 在启动 否则 mysql不知道socket的位置

备份数据库

mysqldump  -uroot -p123456  -B  mysql  -F -R --master-data=2  --events  --single-transaction |gzip >/opt/mysql.20170715.gz

 mysqldump  -uroot -p123456  -B  mysql  -F -R --master-data=2  --events  --single-transaction  >/opt/mysql.sql

gzip格式解压 

gzip -d  文件名

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