这篇myql安装教程是在Linux系统上部署的
【51cto学院MySQL精品好课】:企业级MySQL系列教程-贯穿课程讲解MySQL性能优化+原理+实战
课程地址:https://edu.51cto.com/course/28593.html
有广度有深度系统学习MySQL;贯穿课程说MySQL性能优化;丰富的MySQL实战案例,让你学以致用;
1.mysql下载
①进入mysql官方网站:https://www.mysql.com/ 点击进入DOWNLOADS下载页面
②进入下载页面后,找到mysql社区版本MySQL Community (GPL) Downloads点击进入
③进入社区版页面后,进行如下点击
④进入后,点击mysql版本归档页面
⑤进入mysql版本归档页面后选择你所需要的mysql版本、操作系统及系统版本,然后点击download即可下载
2.mysql安装规范
3.二进制安装MySQL5.7.26(该安装方式使用于MySQL5.7和MySQL8.0的各个小版本)
。创建MySQL虚拟用户
。创建目录
。将下载的文件上传
。解压二进制包
。将软件部分移动到指定目录
。创建软连接
。删除mariadb(避免与MySQL冲突)
。配置文件整理(该配置参数只用于测试环境,不可在生产中使用。配置参数影响着MySQL数据库的性能及安全,慎重!!!)
。安装MySQL依赖包
。更改MySQL相关目录的用户组
。初始化数据库
。加入环境变量
。启动MySQL
。查看是否启动成功
。连接mysql
5.MySQL参数配置详解
## my.cnf for MySQL 5.7/8.0
## 注意:个别建议可能需要根据实际情况作调整,请自行判断或联系我,本人不对这些建议结果负相应责任
## 本配置文件主要适用于MySQL 5.7/8.0版本
[client]
port = 3306
socket = /data/mysql/mysql3306/mysql.sock #socket文件所在目录,本地登录不用再次输入
[mysqld]
user = mysql
port = 3306
basedir = /usr/local/mysql
datadir = /data/mysql/
socket = /data/mysql/mysql.sock
pid-file = mysqldb.pid
character-set-server = utf8mb4
skip_name_resolve = 1
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
slow_query_log_file = /data/mysql/slow.log
log-error = /data/mysql/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 = 3306
log-bin = /data/mysql/mybinlog
sync_binlog = 1
binlog_cache_size = 4M
max_binlog_cache_size = 2G
max_binlog_size = 1G
expire_logs_days = 7
master_info_repository = TABLE
relay_log_info_repository = TABLE
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
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 = 45875M
innodb_buffer_pool_instances = 8
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 = 2
innodb_max_undo_log_size = 4G
innodb_undo_directory = 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_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
internal_tmp_disk_storage_engine = InnoDB
innodb_stats_on_metadata = 0
# some var for MySQL 8
log_error_verbosity = 3
innodb_print_ddl_logs = 1
binlog_expire_logs_seconds = 86400
#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 = 0
#performance_schema
performance_schema = 1
performance_schema_instrument = \’%=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]
max_allowed_packet = 32M