mysqlシリーズ:centos 7.6にmysql 8をインストールする.0

centos7.6上mysql 8.0のインストール
mysql 8をインストールする.バージョン0.16
インストールパッケージはmysqlの公式サイトからダウンロードすることができて、同じくできますhttps://mirrors.tuna.tsinghua.edu.cn/mysql/downloads/MySQL-8.0/ここでダウンロード
元のデータベースを削除
maridbのアンインストール

[root@localhost ~]# rpm -qa|grep mariadb
mariadb-5.5.60-1.el7_5.x86_64
mariadb-server-5.5.60-1.el7_5.x86_64
mariadb-libs-5.5.60-1.el7_5.x86_64


rpm -e --nodeps mariadb-5.5.60-1.el7_5.x86_64

rpm -e --nodeps mariadb-server-5.5.60-1.el7_5.x86_64

mysqlがインストールされているかどうかを確認します

[root@localhost ~]# rpm -qa | grep -i mysql
akonadi-mysql-1.9.2-4.el7.x86_64
perl-DBD-MySQL-4.023-6.el7.x86_64
qt-mysql-4.8.7-2.el7.x86_64
[root@localhost ~]# rpm -e --nodeps akonadi-mysql-1.9.2-4.el7.x86_64
[root@localhost ~]# rpm -e --nodeps perl-DBD-MySQL-4.023-6.el7.x86_64
[root@localhost ~]# rpm -e --nodeps qt-mysql-4.8.7-2.el7.x86_64

mysqlファイルの削除

[root@localhost ~]# find / -name mysql
/etc/selinux/targeted/active/modules/100/mysql
/root/.virtualenvs/django_env/lib/python3.6/site-packages/django/contrib/gis/db/backends/mysql
/root/.virtualenvs/django_env/lib/python3.6/site-packages/django/db/backends/mysql
/root/mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/lib64/mysql


[root@localhost ~]# rm -rf /val/lib/mysql
[root@localhost ~]# rm -rf /usr/lib/mysql
[root@localhost ~]# rm -rf /usr/lib64/mysql

構成ドキュメントの削除

rm -rf /etc/my.cnf

マシンにmysqlがインストールされているかどうかを再確認します

rpm -qa|grep -i mysql

Selinuxを閉じる

#     
setenforce 0
#     
vim /etc/sysconfig/selinux
SELINUX=enforcing    SELINUX=disabled

    reboot

mysql依存パッケージのインストール(選択)

yum -y install libaio.so.1 libgcc_s.so.1 libstdc++.so.6
yum update libstdc++-4.4.7-4.el6.x86_64
yum search libaio #       
yum install libaio #      
yum install net-tools

第1の取付方式rpmパッケージ

#    
mysql-community-client-8.0.17-1.el7.x86_64.rpm
mysql-community-common-8.0.17-1.el7.x86_64.rpm
mysql-community-libs-8.0.17-1.el7.x86_64.rpm
mysql-community-server-8.0.17-1.el7.x86_64.rpm

#       
rpm -ivh mysql-community-common-8.0.17-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.17-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.17-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.17-1.el7.x86_64.rpm

可能なエラー解決策

  1 
error: Failed dependencies: /usr/bin/perl is needed by 
mysql-community-server-8.0.11-1.el7.x86_64 perl(Getopt::Long) is 
needed by mysql-community-server-8.0.11-1.el7.x86_64 perl(strict)

  1 
yum install perl


  2 
error: Failed dependencies: 
libaio.so.1()(64bit) is needed by mysql-community-server-8.0.11-1.el7.x86_64 
libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-8.0.11-1.el7.x86_64 
  2 
wget http://mirror.centos.org/centos/6/os/x86_64/Packages/libaio-0.3.107-10.el6.x86_64.rpm 
rpm -ivh http://mirror.centos.org/centos/6/os/x86_64/Packages/libaio-0.3.107-10.el6.x86_64.rpm

初期mysqld–initializeデータベースの起動

mysqld --initailize --user=mysql
chown mysql:mysql /var/lib/mysql -R
systemctl  start  mysqld

誤報

[root@localhost mysql]# mysqld --initailize
2019-07-28T08:06:16.454284Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.17) starting as process 17757
2019-07-28T08:06:16.457257Z 0 [ERROR] [MY-010123] [Server] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!
2019-07-28T08:06:16.457292Z 0 [ERROR] [MY-010119] [Server] Aborting
2019-07-28T08:06:16.457404Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.17)  MySQL Community Server - GPL.

#     
vim /etc/my.cnf
user=mysql
port=3306


mysqld --initailize --user=mysql


systemctl start mysqld.service



2019-07-28T08:08:22.699288Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.17)  MySQL Community Server - GPL.
2019-07-28T08:10:21.874694Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.17) starting as process 18083
2019-07-28T08:10:21.884794Z 1 [ERROR] [MY-012592] [InnoDB] Operating system error number 13 in a file operation.
2019-07-28T08:10:21.884807Z 1 [ERROR] [MY-012595] [InnoDB] The error means mysqld does not have the access rights to the directory.
2019-07-28T08:10:21.884818Z 1 [ERROR] [MY-012270] [InnoDB] os_file_get_status() failed on './ibdata1'. Can't determine file permissions
2019-07-28T08:10:21.884830Z 1 [ERROR] [MY-010334] [Server] Failed to initialize DD Storage Engine
2019-07-28T08:10:21.885164Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2019-07-28T08:10:21.885227Z 0 [ERROR] [MY-010119] [Server] Aborting

#   
ll /var/run/mysqld/
#    
mkdir -p /var/run/mysqld/
chown -R mysql:mysql /var/run/mysqld
#      ，      。
#   selinux.   。
setenforce 0

#     
service mysqld restart

  systemctl status mysqld.service

起動サービスの設定

systemctl  enable mysqld

初期化パスワードの表示

#           
cat /var/log/mysqld.log | grep password 

2つ目のmysqlのインストール方法(これを推奨)

userdel mysql

#   mysql   ，  
groupadd mysql
useradd -g mysql mysql

tar xf mysql-8.0.17-linux-glibc2.12-x86_64.tar.xz
mv mysql-8.0.17-linux-glibc2.12-x86_64 /usr/local/mysql

cd /usr/local/mysql
mkdir data sql_log undo_log

chown mysql:mysql -R data/ sql_log/ undo_log/

vim /etc/profile
export PATH=$PATH:/usr/localmysql/bin

source /etc/profile
#   my.cnf     
vim /etc/my.cnf
:%s@/home/mysql@/usr/local/mysql@

#    
mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data


#       
cd /usr/local/mysql/support-files
cp mysql.server /etc/init.d/mysqld

#     
/etc/init.d/mysqld start

#   
Starting MySQL. ERROR! The server quit without updating PID file (/usr/local/mysql/data//localhost.localdomain.pid).
  my.cnf                       ，          mysql


#     ：
[root@localhost sql_log]# grep password mysql-error.log
2019-07-28T10:50:16.286737Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: du%3pH5VBo;l

#   mysql
mysql -uroot -p

#         8.0.17
[root@localhost sql_log]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.17

Copyright (c) 2000, 2019, 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>

#     
alter user user() identified by '123456';

my.cnfプロファイル

[client]
port=3306
socket=/usr/local/mysql/data/mysql.sock
[mysqld]
# Skip #
skip_name_resolve= 1
skip-external-locking=1 
symbolic-links= 0
# GENERAL #
user = mysql
default_storage_engine=InnoDB
character-set-server=utf8
socket=/usr/local/mysql/data/mysql.sock
pid_file=/usr/local/mysql/data/mysqld.pid
basedir = /usr/local/mysql
#log_error=/usr/local/mysql/sql_log/mysql_1302.err
port=3306
bind-address=0.0.0.0
explicit_defaults_for_timestamp=off
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
sql_mode=NO_ENGINE_SUBSTITUTION
#read_only=on
# MyISAM #
key_buffer_size=32M
#myisam_recover=FORCE,BACKUP

# undo log #
innodb_undo_directory=/usr/local/mysql/undo_log
innodb_undo_tablespaces=16

# SAFETY #
max_allowed_packet=100M
max_connect_errors=1000000
sysdate_is_now=1
#innodb = FORCE
#innodb_strict_mode=1
secure-file-priv=/usr/local/mysql/sql_log
default_authentication_plugin='mysql_native_password'
# Replice #
 server-id=1306
 relay_log=mysqld-relay-bin
 gtid_mode=on
 enforce-gtid-consistency
 log-slave-updates=on
 master_info_repository=TABLE
 relay_log_info_repository=TABLE


# group replication specific options
#plugin-load=group_replication.so
#group_replication=FORCE_PLUS_PERMANENT
#transaction-write-set-extraction=XXHASH64
#loose-group_replication_start_on_boot=ON
#loose-group_replication_bootstrap_group=OFF
#loose-group_replication_group_name='aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
#group_replication_local_address='10.102.13.2:33061'
#group_replication_group_seeds='10.102.13.3:33061,10.102.13.5:33061'

# DATA STORAGE #
 datadir=/usr/local/mysql/data/
 tmpdir=/tmp
 
# BINARY LOGGING #
 log_bin=/usr/local/mysql/sql_log/mysql-bin
 max_binlog_size=1000M
 binlog_format=row
 expire_logs_days=7
# sync_binlog=1

 # CACHES AND LIMITS #
 tmp_table_size                 = 32M
 max_heap_table_size            = 32M
 max_connections                = 4000
 thread_cache_size              = 2048
 open_files_limit               = 65535
 table_definition_cache         = 4096
 table_open_cache               = 4096
 sort_buffer_size               = 2M
 read_buffer_size               = 2M
 read_rnd_buffer_size           = 2M
# thread_concurrency             = 24
 join_buffer_size = 1M
# table_cache = 32768
 thread_stack = 512k
 max_length_for_sort_data = 16k


 # INNODB #
 innodb_flush_method            = O_DIRECT
 innodb_log_buffer_size = 16M
 innodb_flush_log_at_trx_commit = 2
 innodb_file_per_table          = 1
 innodb_buffer_pool_size        = 2G
 #innodb_buffer_pool_instances = 8
 innodb_stats_on_metadata = off
 innodb_open_files = 8192
 innodb_read_io_threads = 16
 innodb_write_io_threads = 16
 innodb_io_capacity = 20000
 innodb_thread_concurrency = 0
 innodb_lock_wait_timeout = 60
 innodb_old_blocks_time=1000
 innodb_use_native_aio = 1
 innodb_purge_threads=1
 innodb_change_buffering=all
 innodb_log_file_size = 128M
 innodb_log_files_in_group = 3
 innodb_data_file_path  = ibdata1:1024M:autoextend
 
 innodb_rollback_on_timeout=on
 # LOGGING #
 log_error=/usr/local/mysql/sql_log/mysql-error.log
 # log_queries_not_using_indexes  = 1
 # slow_query_log                 = 1
slow_query_log_file=/usr/local/mysql/sql_log/slowlog_1305.log

 # TimeOut #
 #interactive_timeout = 30
 #wait_timeout        = 30
 #net_read_timeout = 60

[mysqldump]
quick
max_allowed_packet = 100M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

転載先:https://www.cnblogs.com/myt2000/p/11263777.html