mysql详细参数配置分析

发布时间：2023-08-25 15:04:48 所属栏目：MySql教程来源：

导读：下文内容主要给大家带来mysql详细参数配置解析，这里所讲到的知识，与书籍略有不同，都是亿速云专业技术人员在与用户接触过程中，总结出来的，具有一定的经验分享价值，希望给广大读者带来帮助。

[client]

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下文内容主要给大家带来mysql详细参数配置解析，这里所讲到的知识，与书籍略有不同，都是亿速云专业技术人员在与用户接触过程中，总结出来的，具有一定的经验分享价值，希望给广大读者带来帮助。

[client]

port    = 3306

socket = /data/mysql/data/mysql.sock

[mysql]

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

no-auto-rehash

[mysqld]

sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION

lower_case_table_names=1

log_timestamps = SYSTEM

default_time_zone = +08:00

user    = mysql

port    = 3306

basedir = /usr/local/mysql

datadir = /data/mysql/data

socket = /data/mysql/data/mysql.sock

pid-file = /data/mysql/data/mysql.pid

character-set-server = utf8

skip_name_resolve = 1

open_files_limit    = 65535

back_log = 1024

max_connections = 1000

max_connect_errors = 1000000

table_open_cache = 2000

table_definition_cache = 400

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 = 3000

query_cache_size = 0

query_cache_type = 0

#interactive_timeout = 600

#wait_timeout = 600

tmp_table_size = 32M

max_heap_table_size = 32M

slow_query_log = 1

slow_query_log_file = /logs/mysql/mysql-slow.log

log-error = /logs/mysql/mysql-error.log

long_query_time = 0.5

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 = 271883306

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

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

slave-parallel-type=LOGICAL_CLOCK

slave-parallel-workers=8

slave_preserve_commit_order=1

binlog_format = row

relay-log = /data/mysql/data/relay-bin

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 = 0

innodb_thread_concurrency = 0

innodb_sync_spin_loops = 100

innodb_spin_wait_delay = 30

mysql详细参数配置解析

innodb_undo_directory           = /data/mysql/data

innodb_undo_logs                = 128

innodb_undo_tablespaces         = 3

innodb_undo_log_truncate        = 1

innodb_purge_rseg_truncate_frequency = 128

transaction_isolation = REPEATABLE-READ

#innodb_additional_mem_pool_size = 16M

innodb_buffer_pool_size = 3072M

innodb_buffer_pool_instances = 2

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 = 512M

innodb_log_files_in_group = 3

innodb_max_undo_log_size = 4G

# 根据您的云服务器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 = 800

innodb_io_capacity_max = 1600

innodb_flush_neighbors = 1

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_file_format = Barracuda

#innodb_file_format_max = Barracuda

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

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,module_server,module_dml,module_ddl,module_trx,module_os,module_purge,module_log,module_lock,module_buffer,module_index,module_ibuf_system,module_buffer_page,module_adaptive_hash

[mysqldump]

quick

max_allowed_packet = 32M

初始化信息参考:

创建用户：

useradd mysql

mkdir -p /data/mysql/data

mkdir -p /logs/mysql/

chown mysql:mysql -R /data/mysql/data

chown mysql:mysql -R /logs/mysql

yum -y install libaio

初始化数据库：

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

cat /logs/mysql/mysql-error.log|grep password|awk '{print $NF}'

修改密码：

alter user root@'localhost' identified by "password";

配置文件自动生成参考信息：

在线cnf 文件生产工具 http://imysql.com/my-cnf-wizard.html

（编辑：聊城站长网）

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