Update my.cnf

Ref https://github.com/just-containers/mariadb/blob/master/rootfs/etc/mysql/my.cnf

Author: nemchik

root/defaults/my.cnf

@@ -1,102 +1,156 @@
-## custom configuration file, please be aware that changing options here may break things
+## 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
+# escpecially 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]
-nice		= 0
+socket          = /var/run/mysqld/mysqld.sock
+nice            = 0
 
 [mysqld]
-character-set-server	= utf8
-max_connections		= 100
-connect_timeout		= 5
-wait_timeout		= 600
-max_allowed_packet	= 16M
+#
+# * 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/mysql
+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
-sort_buffer_size	= 4M
-bulk_insert_buffer_size	= 16M
-tmp_table_size		= 32M
-max_heap_table_size	= 32M
-binlog_format=mixed
+thread_stack            = 192K
+sort_buffer_size        = 4M
+bulk_insert_buffer_size = 16M
+tmp_table_size          = 32M
+max_heap_table_size     = 32M
+
+character_set_server    = utf8mb4
+collation_server        = utf8mb4_general_ci
+transaction_isolation   = READ-COMMITTED
+binlog_format           = ROW
+
 #
 # * 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
-key_buffer_size		= 128M
-#open-files-limit	= 2000
-table_open_cache	= 400
-myisam_sort_buffer_size	= 512M
-concurrent_insert	= 2
-read_buffer_size	= 2M
-read_rnd_buffer_size	= 1M
+myisam_recover         = 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
+query_cache_limit               = 128K
+query_cache_size                = 64M
 # for more write intensive setups, set to DEMAND or OFF
-#query_cache_type		= DEMAND
+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_file        = /config/log/mysql/mysql.log
 #general_log             = 1
+#general_log_file        = /config/log/mysql/mysql.log
 #
-# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf.
+# Error log - should be very few entries.
 #
-# we do want to know about network errors and such
-log_warnings		= 2
+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[={0|1}]
-slow_query_log_file	= /config/log/mysql/mariadb-slow.log
-long_query_time = 10
-#log_slow_rate_limit	= 1000
-log_slow_verbosity	= query_plan
-
+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 README.Debian about
-#       other settings you may need to change.
-#server-id		= 1
-#report_host		= master1
+# 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
+#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
-expire_logs_days	= 10
+#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
+#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
+#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
+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
+#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
 #
@@ -109,33 +163,13 @@ innodb_flush_method	= O_DIRECT
 # ssl-cert=/etc/mysql/server-cert.pem
 # ssl-key=/etc/mysql/server-key.pem
 
-#
-# * Galera-related settings
-#
-[galera]
-# Mandatory settings
-#wsrep_on=ON
-#wsrep_provider=
-#wsrep_cluster_address=
-#binlog_format=row
-#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
-
 [mysqldump]
 quick
 quote-names
-max_allowed_packet	= 16M
+max_allowed_packet      = 16M
 
 [mysql]
-#no-auto-rehash	# faster start of mysql but no tab completion
+#no-auto-rehash # faster start of mysql but no tab completition
 
 [isamchk]
-key_buffer_size		= 16M
+key_buffer         = 16M