参照 腾讯云 和ucloud my.cnf 以及网上找的资料
整理出来的 my.cnf , 以后修改任何参数都会继续更新
也是在测试阶段
物理机 ： ubuntu14.04 配置 8core 32G
mysql ： 5.5.62
调优配置
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
default-character-set = utf8
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
[mysqld]
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
key_buffer = 256M
max_allowed_packet = 1073741824
thread_stack = 512K
thread_cache_size = 50
max_connections = 5000
max_connect_errors = 1000000
table_cache = 4096
max_heap_table_size = 128M
open_files_limit = 102400
back_log = 2000
thread_concurrency = 20
sort_buffer_size = 524288
ft_min_word_len = 4
query_cache_size = 0
log_error = /var/log/mysql/error.log
log_slow_queries = /var/log/mysql/mysql-slow.log
long_query_time = 3
server-id = 1
log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 2
tmp_table_size = 4294967295
#default_table_type = InnoDB
#loose-skip-bdb
default-storage-engine =InnoDB
innodb_file_format=barracuda
#ROW_FORMAT=COMPRESSED
innodb_additional_mem_pool_size = 64M
innodb_buffer_pool_size = 6G
innodb_data_file_path = ibdata1:128M:autoextend
innodb_read_io_threads = 8
innodb_write_io_threads = 8
innodb_thread_concurrency = 20
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 8388608
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
[mysqldump]
quick
quote-names
max_allowed_packet = 1073741824
[mysql]
default-character-set = utf8
[isamchk]
key_buffer = 256M
!includedir /etc/mysql/conf.d/
附一些参数的简单解释
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
open-files-limit = 8192 #增加每个进程的可打开文件数量
[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp #记录msyql临时文件
#back_log = 300
lc-messages-dir = /usr/share/mysql
skip-external-locking #允许外部文件级别的锁. 打开文件锁会对性能造成负面影响
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address = 0.0.0.0 #控制可连接数据库的 客户端
#
# * Fine Tuning
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
[myisamchk]
key_buffer = 2048M
sort_buffer_size = 2048M
read_buffer = 32M
write_buffer = 32M
[mysqlhotcopy]
interactive-timeout
!includedir /etc/mysql/conf.d/
由 dawei
【声明】：站长网内容转载自互联网，其相关言论仅代表作者个人观点绝非权威，不代表本站立场。如您发现内容存在版权问题，请提交相关链接至邮箱：bqsm@foxmail.com，我们将及时予以处理。