actual mysql

cat /etc/mysql/mariadb.conf.d/50-server.cnf

# 

# These groups are read by MariaDB server.

# Use it for options that only the server (but not clients) should see

# this is read by the standalone daemon and embedded servers

\[server\]

# this is only for the mysqld standalone daemon

\[mysqld\] slow_query_log = 1 slow_query_log_file = /var/log/mysql/slow.log long_query_time = 2

# innodb_large_prefix = 1

innodb_buffer_pool_size = 12G #innodb_buffer_pool_size = 8G

# chatgpt 4gb original

innodb_log_file_size = 4G

# innodb_log_file_size = 2G

innodb_flush_method = O_DIRECT #thread_handling = one-thread-per-connection thread_handling = pool-of-threads innodb_io_capacity = 5000 #innodb_io_capacity = 2000

# innodb_log_files_in_group = 2

# interactive_timeout = 1000

max_connections = 200

# max_statement_time = 1000

# performance_schema = ON

skip-name-resolve

# chatgpt table_definition_cache = 1300 wait_timeout = 1000

table_definition_cache = 2000 table_open_cache = 2000

# wait_timeout = 2000

interactive_timeout = 600 wait_timeout = 600

#transaction_isolation = READ-COMMITTED

# 

# \* Basic Settings

# 

#user = mysql pid-file = /run/mysqld/mysqld.pid

basedir = /usr #datadir = /var/lib/mysql #tmpdir = /tmp

# Broken reverse DNS slows down connections considerably and name resolve is

# safe to skip if there are no "host by domain name" access grants

#skip-name-resolve

# 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_allowed_packet = 1G #thread_stack = 192K #thread_cache_size = 8

# This replaces the startup script and checks MyISAM tables if needed

# the first time they are touched

#myisam_recover_options = BACKUP #max_connections = 100 #table_cache = 64

# 

# \* Logging and Replication

# 

# Note: The configured log file or its directory need to be created

# and be writable by the mysql user, e.g.:

# $ sudo mkdir -m 2750 /var/log/mysql

# $ sudo chown mysql /var/log/mysql

# Both location gets rotated by the cronjob.

# Be aware that this log type is a performance killer.

# Recommend only changing this at runtime for short testing periods if needed!

#general_log_file = /var/log/mysql/mysql.log #general_log = 1

# When running under systemd, error logging goes via stdout/stderr to journald

# and when running legacy init error logging goes to syslog due to

# /etc/mysql/conf.d/mariadb.conf.d/50-mysqld_safe.cnf

# Enable the slow query log to see queries with especially long duration

#log_slow_query_file = /var/log/mysql/mariadb-slow.log #log_slow_query_time = 10 #log_slow_verbosity = query_plan,explain #log-queries-not-using-indexes #log_slow_min_examined_row_limit = 1000

# 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

# 

# \* SSL/TLS

# 

# For documentation, please read

# https://mariadb.com/kb/en/securing-connections-for-client-and-server/

#ssl-ca = /etc/mysql/cacert.pem #ssl-cert = /etc/mysql/server-cert.pem #ssl-key = /etc/mysql/server-key.pem #require-secure-transport = on

# 

# \* Character sets

# 

# MySQL/MariaDB default is Latin1, but in Debian we rather default to the full

# utf8 4-byte character set. See also client.cnf

character-set-server = utf8mb4 collation-server = utf8mb4_general_ci

# 

# \* 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!

# Most important is to give InnoDB 80 % of the system RAM for buffer use:

# https://mariadb.com/kb/en/innodb-system-variables/#innodb_buffer_pool_size

#innodb_buffer_pool_size = 8G

# this is only for embedded server

\[embedded\]

# This group is only read by MariaDB servers, not by MySQL.

# If you use the same .cnf file for MySQL and MariaDB,

# you can put MariaDB-only options here

\[mariadb\]

# This group is only read by MariaDB-10.11 servers.

# If you use the same .cnf file for MariaDB of different versions,

# use this group for options that older servers don't understand

\[mariadb-10.11\]