## custom configuration file based on https://github.com/just-containers/mariadb/blob/master/rootfs/etc/mysql/my.cnf
## please be aware that changing options here may break things
#
# The MySQL database server configuration file.
#
# 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
# especially if they contain "#" chars...
[client]
port            = 3306
socket          = /var/run/mysqld/mysqld.sock

default-character-set = utf8mb4

# 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

[mysqld]
#
# * Basic Settings
#
user            = abc
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/mariadb
lc_messages     = en_US
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address           = 127.0.0.1
#
# * Fine Tuning
#
key_buffer_size         = 128M
max_connections         = 100
connect_timeout         = 5
wait_timeout            = 600
max_allowed_packet      = 16M
thread_cache_size       = 128
thread_stack            = 192K
sort_buffer_size        = 4M
bulk_insert_buffer_size = 16M
tmp_table_size          = 32M
max_heap_table_size     = 32M

#performance_schema = on
character_set_server    = utf8mb4
collation_server        = utf8mb4_general_ci
transaction_isolation   = READ-COMMITTED
binlog_format           = MIXED

#
# * MyISAM
#
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched. On error, make copy and try a repair.
myisam-recover-options  = BACKUP
#open-files-limit       = 2000
table_open_cache        = 400
#table_cache            = 64
#thread_concurrency     = 10
myisam_sort_buffer_size = 512M
concurrent_insert       = 2
read_buffer_size        = 2M
read_rnd_buffer_size    = 1M
#
# * Query Cache Configuration
#
# Cache only tiny result sets, so we can fit more in the query cache.
query_cache_limit               = 128K
query_cache_size                = 64M
# for more write intensive setups, set to DEMAND or OFF
query_cache_type               = DEMAND
#
# * Logging and Replication
#
console                 = 1
# 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             = 1
#general_log_file        = /config/log/mysql/mysql.log
#
# Error log - should be very few entries.
#
log_warnings            = 2
# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf
#log_error               = /config/log/mysql/mysql.log
#
# Enable the slow query log to see queries with especially long duration
slow_query_log          = 1
slow_query_log_file     = /config/log/mysql/mariadb-slow.log
long_query_time         = 5
#log_slow_rate_limit    = 1000
#log-queries-not-using-indexes
#log_slow_admin_statements
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see
#       https://mariadb.com/kb/en/setting-up-replication/
#       about other settings you may need to change.
#server-id              = 1
#report_host            = master1
#auto_increment_increment = 2
#auto_increment_offset  = 1
log_bin                 = /config/log/mysql/mariadb-bin
log_bin_index           = /config/log/mysql/mariadb-bin.index
# not fab for performance, but safer
#sync_binlog             = 1
#binlog_do_db            = include_database_name
#binlog_ignore_db        = include_database_name
expire_logs_days        = 10
max_binlog_size         = 100M
# slaves
#relay_log              = /config/log/mysql/relay-bin
#relay_log_index        = /config/log/mysql/relay-bin.index
#relay_log_info_file    = /config/log/mysql/relay-bin.info
#log_slave_updates
#read_only
#
# If applications support it, this stricter sql_mode prevents some
# mistakes like inserting invalid dates etc.
#sql_mode               = NO_ENGINE_SUBSTITUTION,TRADITIONAL
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
default_storage_engine  = InnoDB
# you can't just change log file size, requires special procedure
#innodb_log_file_size   = 50M
innodb_buffer_pool_size = 256M
innodb_log_buffer_size  = 8M
innodb_file_per_table   = 1
innodb_open_files       = 400
innodb_io_capacity      = 400
innodb_flush_method     = O_DIRECT
#
# * 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

[mysqldump]
quick
quote-names
max_allowed_packet      = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completion

[isamchk]
key_buffer         = 16M

#
# * Galera-related settings
#
[galera]
# Mandatory settings
#wsrep_on=ON
#wsrep_provider=
#wsrep_cluster_address=
#binlog_format=MIXED
#default_storage_engine=InnoDB
#innodb_autoinc_lock_mode=2
#
# Allow server to accept connections on all interfaces.
#
#bind-address=0.0.0.0
#
# Optional setting
#wsrep_slave_threads=1
#innodb_flush_log_at_trx_commit=0