[client]
port = 3306
socket = /data/mysql/mysql.sock
[mysql]
prompt="\u@\h:\p/\d> " #登入mysql数据库后，mysql的提示符
no-auto-rehash #禁用命令自动补全,重启mysql生效
[mysqld]
# 需要根据实际情况修改的参数
port = 3306
basedir = /usr/local/mysql
datadir = /data/mysql
socket = /data/mysql/mysql.sock
server-id = 623306 #建议设置成 ip最后一位+端口号 的方式
log-bin = /data/mysql/mybinlog
slow_query_log_file = /data/mysql/slow.log
log-error = /data/mysql/error.log
innodb_undo_directory = /data/mysql/undolog
innodb_buffer_pool_size = 2G #InnoDB内存
expire_logs_days = 7 #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
default_time_zone = "+8:00" #若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
# general
user = mysql
character-set-server = utf8mb4
transaction_isolation = READ-COMMITTED
lower_case_table_names=1 #大小写不敏感
skip_name_resolve = 1
log_timestamps = SYSTEM
slow_query_log = 1
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
table_open_cache_instances = 64
external-locking = FALSE
explicit_defaults_for_timestamp = 1
# GTID
master_info_repository = TABLE
relay_log_info_repository = TABLE
gtid_mode = on
enforce_gtid_consistency = 1
# replication
#skip_slave_start #如果作为中级节点必须开启否则不用开启
#read_only = 1 #从库必须开启
slave-skip-errors = 1032 #跳过1032错误
log_slave_updates
slave-rows-search-algorithms = 'INDEX_SCAN,HASH_SCAN'
# relay log
#slave_parallel_workers = 8 并行的复制，多个数据库就要开启并行
max-relay-log-size = 256M
relay_log_purge = 1
relay_log_recovery = 1
# binary logging
binlog_format = row
sync_binlog = 1
binlog_cache_size = 4M
max_binlog_cache_size = 2G
max_binlog_size = 1G
# myisam
key_buffer_size = 64M #只针对Myisam引擎，如果以Innodb表为主，这个值就足够用了，如果以myisam表为主这个需要设置大些
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
# buffers & cache
table_open_cache = 1024
table_definition_cache = 2048
max_heap_table_size = 32M
tmp_table_size = 32M
sort_buffer_size = 4M
join_buffer_size = 4M
thread_cache_size = 768
thread_stack = 512K
read_buffer_size = 8M
read_rnd_buffer_size = 4M
bulk_insert_buffer_size = 64M
# connect
max_connections = 2000
max_user_connections = 1000 #用户最大连接数
open_files_limit = 65535 #不能超过内核的上限值
back_log = 1024 #如果有1000个连接过来，数据库现在只能连接100个进程，另外900缓存起来存到back_log中
# timeout
wait_timeout = 600
lock_wait_timeout = 3600
innodb_lock_wait_timeout = 30
max_connect_errors = 1000000
interactive_timeout = 600
connect_timeout = 20
slave-net-timeout = 20
# innodb
innodb_additional_mem_pool_size = 16M
innodb_adaptive_flushing = 1 #顺序io 的参数 自适应刷新
innodb_adaptive_hash_index = ON #开启自适应辅助hash索引
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 = 2
innodb_max_undo_log_size = 4G
innodb_undo_tablespaces = 95
innodb_thread_concurrency = 0
innodb_sync_spin_loops = 100
innodb_spin_wait_delay = 30
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
innodb_status_file = 1
binlog_checksum = 1
innodb_status_output = 0 #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_locks = 0
# 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"
# 下面的参数适用于 5.7
#innodb_checksums = 1
#innodb_file_format = Barracuda
#innodb_file_format_max = Barracuda
#query_cache_size = 0 #关闭查询缓存
#query_cache_type = 0 #关闭查询缓存
#innodb_undo_logs = 128
#internal_tmp_disk_storage_engine = InnoDB # 注意：MySQL 8.0.16开始删除该选项
# 下面的参数适用于 8.0
#log_error_verbosity = 3
#innodb_print_ddl_logs = 1
#binlog_expire_logs_seconds = 604800
#innodb_dedicated_server = 0
[mysqldump]
quick
max_allowed_packet = 1G