mysqld.cnf

# Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

#
# The MySQL  Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

[mysqld]
pid-file	= /var/run/mysqld/mysqld.pid
socket		= /var/run/mysqld/mysqld.sock
datadir		= /var/lib/mysql
#log-error	= /var/log/mysql/error.log
# By default we only accept connections from localhost
#bind-address	= 127.0.0.1
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

# SAFETY
innodb                         = FORCE
innodb_strict_mode             = 1
max_allowed_packet             = 1G
max_connect_errors             = 1000000
skip_name_resolve

# CACHES AND LIMITS
max_connections                = 500
max_heap_table_size            = 64M
open_files_limit               = 65535
query_cache_type               = 0
query_cache_size               = 0
table_definition_cache         = 4096
table_open_cache               = 10240
thread_cache_size              = 50
tmp_table_size                 = 64M
 
# INNODB
innodb_buffer_pool_size        = 18G
innodb_buffer_pool_instances   = 18
innodb_flush_method            = O_DIRECT
innodb_flush_log_at_trx_commit = 0
innodb_file_per_table          = 1
innodb_log_files_in_group      = 2
innodb_log_file_size           = 1536M
innodb_thread_concurrency      = 0
innodb_read_io_threads         = 64
innodb_write_io_threads        = 64
innodb_support_xa              = 0
innodb_doublewrite             = 0
innodb_locks_unsafe_for_binlog = 1

# LOGGING
general_log = 0