1、下载二进制安装文件包

https://dev.mysql.com/downloads/mysql/

mysql-8.0.21-linux-glibc2.12-x86_64.tar.xz

2、解压二进制文件包

groupadd mysql

useradd -r -g mysql -s /bin/false mysql

tar -zcvf mysql-8.0.21-linux-glibc2.12-x86_64.tar.xz

mv mysql-8.0.21-linux-glibc2.12-x86_64 /usr/lcoal/

mv mysql-8.0.21-linux-glibc2.12-x86_64 mysql

chown -R mysql:mysql /usr/local/mysql

mkdir -p  /data/mysql

cd /data/mysql

mkdir logs undo data

chown -R mysql:mysql /data

3、初始化前的配置

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

4、配置mysql的配置文件

vi my.cnf

[client]

port = 13306

socket = /data/mysql/mysql.sock

[mysql]

prompt="\u@master \R:\m:\s [\d]> "

no-auto-rehash

[mysqld]

user = mysql

port = 13306

basedir = /usr/local/mysql

datadir = /data/mysql/data

socket = /data/mysql/mysql.sock

pid-file = master.pid

character-set-server = utf8mb4

skip_name_resolve = 1

#若你的MySQL数据库主要运行在境外，请务必根据实际情况调整本参数

default_time_zone = "+8:00"

open_files_limit    = 65535

back_log = 1024

max_connections = 512

max_connect_errors = 1000000

table_open_cache = 1024

table_definition_cache = 1024

table_open_cache_instances = 64

thread_stack = 512K

external-locking = FALSE

max_allowed_packet = 32M

sort_buffer_size = 4M

join_buffer_size = 4M

thread_cache_size = 768

interactive_timeout = 600

wait_timeout = 600

tmp_table_size = 32M

max_heap_table_size = 32M

slow_query_log = 1

log_timestamps = SYSTEM

slow_query_log_file = /data/mysql/log/slow.log

log-error = /data/mysql/log/error.log

long_query_time = 0.1

log_queries_not_using_indexes =1

log_throttle_queries_not_using_indexes = 60

min_examined_row_limit = 100

log_slow_admin_statements = 1

log_slow_slave_statements = 1

server-id = 13306

log-bin = /data/mysql/log/mybinlog

sync_binlog = 1

binlog_cache_size = 4M

max_binlog_cache_size = 2G

max_binlog_size = 1G

#注意：MySQL 8.0开始，binlog_expire_logs_seconds选项也存在的话，会忽略expire_logs_days选项

#expire_logs_days = 7

master_info_repository = TABLE

relay_log_info_repository = TABLE

gtid_mode = on

enforce_gtid_consistency = 1

log_slave_updates

#slave-rows-search-algorithms = 'INDEX_SCAN,HASH_SCAN'

binlog_format = row

binlog_checksum = 1

relay_log_recovery = 1

relay-log-purge = 1

key_buffer_size = 32M

read_buffer_size = 8M

read_rnd_buffer_size = 4M

bulk_insert_buffer_size = 64M

myisam_sort_buffer_size = 128M

myisam_max_sort_file_size = 10G

myisam_repair_threads = 1

lock_wait_timeout = 3600

explicit_defaults_for_timestamp = 1

innodb_thread_concurrency = 0

#innodb_sync_spin_loops = 100

#innodb_spin_wait_delay = 30

transaction_isolation = REPEATABLE-READ

#innodb_additional_mem_pool_size = 16M

innodb_buffer_pool_size = 717M

innodb_buffer_pool_instances = 4

innodb_buffer_pool_load_at_startup = 1

innodb_buffer_pool_dump_at_shutdown = 1

innodb_data_file_path = ibdata1:1G:autoextend

innodb_flush_log_at_trx_commit = 1

innodb_log_buffer_size = 32M

innodb_log_file_size = 2G

innodb_log_files_in_group = 3

innodb_max_undo_log_size = 4G

innodb_undo_directory = /data/mysql/undo/undolog

innodb_undo_tablespaces = 95

# 根据您的服务器IOPS能力适当调整

# 一般配普通SSD盘的话，可以调整到 10000 - 20000

# 配置高端PCIe SSD卡的话，则可以调整的更高，比如 50000 - 80000

innodb_io_capacity = 4000

innodb_io_capacity_max = 8000

innodb_flush_sync = 0

innodb_flush_neighbors = 0

innodb_write_io_threads = 8

innodb_read_io_threads = 8

innodb_purge_threads = 4

innodb_page_cleaners = 4

innodb_open_files = 65535

innodb_max_dirty_pages_pct = 50

innodb_flush_method = O_DIRECT

innodb_lru_scan_depth = 4000

innodb_checksum_algorithm = crc32

innodb_lock_wait_timeout = 10

innodb_rollback_on_timeout = 1

innodb_print_all_deadlocks = 1

innodb_file_per_table = 1

innodb_online_alter_log_max_size = 4G

innodb_stats_on_metadata = 0

innodb_undo_log_truncate = 1

#注意：MySQL 8.0.16开始删除该选项

internal_tmp_disk_storage_engine = InnoDB

# some var for MySQL 8

log_error_verbosity = 3

innodb_print_ddl_logs = 1

binlog_expire_logs_seconds = 604800

#innodb_dedicated_server = 0

innodb_status_file = 1

#注意: 开启 innodb_status_output & innodb_status_output_locks 后, 可能会导致log-error文件增长较快

innodb_status_output = 0

innodb_status_output_locks = 1

innodb_sort_buffer_size = 67108864

innodb_autoinc_lock_mode = 1

#performance_schema

performance_schema = 1

#performance_schema_instrument = '%memory%=on'

#performance_schema_instrument = '%lock%=on'

#innodb monitor

innodb_monitor_enable="module_innodb"

innodb_monitor_enable="module_server"

innodb_monitor_enable="module_dml"

innodb_monitor_enable="module_ddl"

innodb_monitor_enable="module_trx"

innodb_monitor_enable="module_os"

innodb_monitor_enable="module_purge"

innodb_monitor_enable="module_log"

innodb_monitor_enable="module_lock"

innodb_monitor_enable="module_buffer"

innodb_monitor_enable="module_index"

innodb_monitor_enable="module_ibuf_system"

innodb_monitor_enable="module_buffer_page"

innodb_monitor_enable="module_adaptive_hash"

[mysqldump]

quick

max_allowed_packet = 32M

5、初始化mysql

cd /usr/local/mysql/bin

./mysqld --initialize --user=mysql

./mysql_ssl_rsa_setup

参考文档：https://dev.mysql.com/doc/refman/8.0/en/binary-installation.html

                    my.cnf 生成工具：https://imysql.cn/my_cnf_generator