edit it i.e. to this:
#
# 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 = 32768
log-error = /var/log/mysql/mysql-error.log
[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
lc-messages-dir = /usr/share/mysql
skip-external-locking
init_connect=‘SET collation_connection = utf8_general_ci’
init_connect=‘SET NAMES utf8’
character-set-server=utf8
collation-server=utf8_general_ci
skip-character-set-client-handshake
DO NOT USE IN XCP-XAPI
#local-infile = 0
#automatic_sp_privileges = 0
#safe-user-create = 1
#secure-auth = 1
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
bind-address = 127.0.0.1
* Fine Tuning
key_buffer = 384M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
DO NOT USE IN XCP-XAPI
#interactive_timeout = 3600
wait_timeout = 6000
tmp_table_size = 32M
max_heap_table_size = 32M
This replaces the startup script and checks MyISAM tables if needed
the first time they are touched
myisam-recover = BACKUP
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
* Query Cache Configuration
query_cache_limit = 1M
query_cache_size = 32M
* Logging and Replication
Both location gets rotated by the cronjob.
Be aware that this log type is a performance killer.
As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf.
Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
The following can be used as easy to replay backup logs or for replication.
note: if you are setting up a replication slave, see README.Debian about
other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
* InnoDB
innodb_file_per_table = 1
InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
Read the manual for more InnoDB related options. There are many!
* Security Features
Read the manual, too, if you want chroot!
chroot = /var/lib/mysql/
For generating SSL certificates I recommend the OpenSSL GUI “tinyca”.
ssl-ca=/etc/mysql/cacert.pem
ssl-cert=/etc/mysql/server-cert.pem
ssl-key=/etc/mysql/server-key.pem
thread_concurrency = 8
thread_cache_size = 256
max_connections = 256
myisam_sort_buffer_size = 64M
read_rnd_buffer_size = 8M
read_buffer_size = 2M
table_definition_cache = 4096
table_open_cache = 16384
table_cache = 1024
sort_buffer_size = 2M
DO NOT USE IN XCP-XAPI
#thread_stack = 256K
#join_buffer_size = 2M
#optimizer_search_depth = 4
#query_cache_type = 1
#query_cache_limit = 256K
#query_cache_size = 256M
#query_cache_min_res_unit = 4K
[mysqldump]
quick
quote-names
max_allowed_packet = 64M
[mysql]
no-auto-rehash # faster start of mysql but no tab completition
[isamchk]
key_buffer = 256M
write_buffer = 2M
read_buffer = 2M
sort_buffer_size = 256M
key_cache_block_size = 4K
bulk_insert_buffer_size = 8M
myisam_sort_buffer_size = 64M
concurrent_insert = 2
[innodb]
innodb_buffer_pool_size = 8192M
innodb_log_group_home_dir = /var/lib/mysql
innodb_data_home_dir = /var/lib/mysql
#innodb_autoextend_increment = 128
#innodb_data_file_path = ibdata1:128M:autoextend
innodb_log_buffer_size = 8M
innodb_additional_mem_pool_size = 8M
innodb_flush_log_at_trx_commit = 0
innodb_file_per_table = 1
#innodb_strict_mode = 1
innodb_thread_concurrency = 16
innodb_lock_wait_timeout = 60
#innodb_support_xa = 0
innodb_flush_method = O_DIRECT
#thread_concurrency = 10
general_log_file = /var/log/mysql/mysql.log
general_log = 1
log_output = FILE
slow_query_log = 1
slow_query_log_file = /var/log/mysql/mysql-slow.log
long_query_time = 1 # 2
server-id = 1
log_bin = /var/log/mysql/mysql-bin.log
binlog_cache_size = 256K
sync_binlog = 256
expire_logs_days = 14
max_binlog_size = 1G
binlog_do_db = include_database_name
binlog_ignore_db = include_database_name
log-bin-trust-function-creators = 1
binlog_format = mixed
#sql-mode =“NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION”
* IMPORTANT: Additional settings that can override those from this file!
The files must end with ‘.cnf’, otherwise they’ll be ignored.
!includedir /etc/mysql/conf.d/