my.cnf

# MariaDB database server configuration file.
#
# You can copy this file 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
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            = 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
lc_messages     = en_US
skip-external-locking

skip-grant-tables
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address            = 172.31.28.210
#
# * Fine Tuning
#
max_connections         = 1024
connect_timeout         = 5
wait_timeout            = 60
interactive_timeout     = 5000
max_allowed_packet      = 16M
thread_cache_size       = 128
join_buffer_size        = 4M
sort_buffer_size        = 4M
bulk_insert_buffer_size = 16M
tmp_table_size          = 256M
max_heap_table_size     = 256M
#
# * 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         = 512M
open-files-limit        = 60000
table_open_cache        = 48000
myisam_sort_buffer_size = 512M
concurrent_insert       = 2
read_buffer_size        = 2M
read_rnd_buffer_size    = 1M
back_log                = 9500
table_definition_cache  = 2000
table_open_cache_instances = 16
#
# * 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_min_res_unit = 2K
# for more write intensive setups, set to DEMAND or OFF
query_cache_type                = DEMAND
#
# * 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.
#
# we do want to know about network errors and such
log_warnings            = 2
#
# Enable the slow query log to see queries with especially long duration
#slow_query_log[={0|1}]
slow_query_log_file     = /var/log/mysql/mariadb-slow.log
long_query_time = 5
#log_slow_rate_limit    = 1000
log_slow_verbosity      = query_plan
log-queries-not-using-indexes = 1
#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
#auto_increment_increment = 2
#auto_increment_offset  = 1
log_bin                 = /var/log/mysql/mariadb-bin
log_bin_index           = /var/log/mysql/mariadb-bin.index
# not fab for performance, but safer
sync_binlog             = 1
expire_logs_days        = 10
max_binlog_size         = 100M
# slaves
#relay_log              = /var/log/mysql/relay-bin
#relay_log_index        = /var/log/mysql/relay-bin.index
#relay_log_info_file    = /var/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
innodb_file_format = Barracuda
innodb_large_prefix = 'on'

innodb_buffer_pool_size = 16G
innodb_buffer_pool_chunk_size=2G
innodb_log_buffer_size  = 64M
innodb_buffer_pool_instances=16
innodb_file_per_table   = 1
innodb_open_files       = 48000
innodb_io_capacity      = 30000
innodb_flush_method     = O_DIRECT
innodb_log_file_size    = 2G
innodb_log_files_in_group=2
innodb_undo_log_truncate=off

innodb_doublewrite= 1
innodb_thread_concurrency=6
innodb_flush_log_at_trx_commit= 1
innodb_max_dirty_pages_pct=90
innodb_max_dirty_pages_pct_lwm=10
innodb_use_native_aio=1
innodb_stats_persistent = 1
innodb_page_cleaners=4
innodb_change_buffer_max_size=15
innodb_flushing_avg_loops=5

innodb_adaptive_flushing = 1
innodb_flush_neighbors = 2
innodb_read_io_threads = 16
innodb_write_io_threads = 16

innodb_purge_threads=4
innodb_adaptive_hash_index=0
max_prepared_stmt_count=100000
innodb_monitor_enable = '%'
performance_schema=ON
skip-name-resolve=1
key_cache_age_threshold=7200
key_cache_division_limit=50
key_cache_block_size=16K



character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
skip-character-set-client-handshake
#
# * 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

#
# * 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      = 1024M
#net_read_timeout=3600
#net_write_timeout=3600
[mysql]
[mysql]
#no-auto-rehash # faster start of mysql but no tab completion
default-character-set = utf8mb4
[isamchk]
key_buffer              = 32M

#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!include /etc/mysql/mariadb.cnf
!includedir /etc/mysql/conf.d/