my.cnf.erb

#
# Generated by Chef for <%= node['hostname'] %>
#
# Local modifications will be overwritten.
# 
# The MySQL database server configuration file.
#
# You can copy this 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          = <%= node['mysql']['socket'] %>

# 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          = <%= node['mysql']['socket'] %>
nice            = 0

[mysqld]
#
# * Basic Settings
#

#
# * IMPORTANT
#   If you make changes to these settings and your system uses apparmor, you may
#   also need to also adjust /etc/apparmor.d/usr.sbin.mysqld.
#

user            = mysql
pid-file        = <%= node['mysql']['pid_file'] %>
socket          = <%= node['mysql']['socket'] %>
port            = 3306
basedir         = <%= node['mysql']['basedir'] %>
datadir         = <%= node['mysql']['data_dir'] %>
tmpdir          = /tmp
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            = <%= node['mysql']['bind_address'] %>
#
# * Fine Tuning
#
key_buffer              = <%= node['mysql']['tunable']['key_buffer'] %>
max_allowed_packet      = <%= node['mysql']['tunable']['max_allowed_packet'] %>
thread_stack            = <%= node['mysql']['tunable']['thread_stack'] %>
thread_cache_size       = <%= node['mysql']['tunable']['thread_cache_size'] %>

auto-increment-increment = <%= node['mysql']['auto-increment-increment'] %>
auto-increment-offset    = <%= node['mysql']['auto-increment-offset'] %>

# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover          = BACKUP
#max_connections        = 100
#table_cache            = 64
#thread_concurrency     = 10
max_connections         = <%= node['mysql']['tunable']['max_connections'] %>
wait_timeout            = <%= node['mysql']['tunable']['wait_timeout'] %>
net_read_timeout        = <%= node['mysql']['tunable']['net_read_timeout'] %>
net_write_timeout       = <%= node['mysql']['tunable']['net_write_timeout'] %>
back_log                = <%= node['mysql']['tunable']['back_log'] %>
table_cache             = <%= node['mysql']['tunable']['table_cache'] %>
max_heap_table_size     = <%= node['mysql']['tunable']['max_heap_table_size'] %>

#
# * Encoding and collation
#

default-character-set   = <%= node['mysql']['tunable']['default-character-set'] %>
default-collation       = <%= node['mysql']['tunable']['default-collation'] %>

#
# * Query Cache Configuration
#
query_cache_limit       = <%= node['mysql']['tunable']['query_cache_limit'] %>
query_cache_size        = <%= node['mysql']['tunable']['query_cache_size'] %>
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
#log            = /var/log/mysql/mysql.log
#
# Error logging goes to syslog. This is a Debian improvement :)
<%- if node['mysql']['tunable']['log_error'] %>
log-error = <%= node['mysql']['tunable']['log_error'] %>
<%- end %>
#
# Here you can see queries with especially long duration
log_slow_queries        = <%= node['mysql']['tunable']['log_slow_queries'] %>
long_query_time         = <%= node['mysql']['tunable']['long_query_time'] %>
<%- if node['mysql']['tunable']['log_queries_not_using_index'] %>
log-queries-not-using-indexes
<%- end %>
#
# 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
<%- if node['mysql']['tunable']['log_bin'] %>
log_bin = <%= node['mysql']['tunable']['log_bin'] %>
log_slave_updates       = <%= node['mysql']['tunable']['log_slave_updates'] %>
<%- end %>
<%- if node['mysql']['tunable']['log_bin_trust_function_creators'] %>
log_bin_trust_function_creators
<%- end %>
expire_logs_days        = <%= node['mysql']['tunable']['expire_logs_days'] %>
max_binlog_size         = <%= node['mysql']['tunable']['max_binlog_size'] %>
#binlog_do_db           = include_database_name
#binlog_ignore_db       = include_database_name
<%- if node['mysql']['tunable']['relay_log'] %>
relay-log               = <%= node['mysql']['tunable']['relay_log'] %>
<%- end %>
sync_binlog             = <%= node['mysql']['tunable']['sync_binlog'] %>
<%- if node['mysql']['tunable']['skip_slave_start'] %>
skip_slave_start
<%- end %>

#
# * 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!
# You might want to disable InnoDB to shrink the mysqld process by circa 100MB.
#skip-innodb
innodb_buffer_pool_size = <%= node['mysql']['tunable']['innodb_buffer_pool_size'] %>
innodb_log_file_size    = <%= node['mysql']['tunable']['innodb_log_file_size'] %>
innodb_additional_mem_pool_size = <%= node['mysql']['tunable']['innodb_additional_mem_pool_size'] %>
innodb_data_file_path   = <%= node['mysql']['tunable']['innodb_data_file_path'] %>
innodb_file_per_table
innodb_flush_log_at_trx_commit = <%= node['mysql']['tunable']['innodb_flush_log_at_trx_commit'] %>
innodb_flush_method     = <%= node['mysql']['tunable']['innodb_flush_method'] %>
innodb_log_buffer_size  = <%= node['mysql']['tunable']['innodb_log_buffer_size'] %>
innodb_adaptive_flushing  = <%= node['mysql']['tunable']['innodb_adaptive_flushing'] %>

<% if @skip_federated %>
#
# * Federated
#
# The FEDERATED storage engine is disabled since 5.0.67 by default in the .cnf files
# shipped with MySQL distributions (my-huge.cnf, my-medium.cnf, and so forth).
#
skip-federated
<% end %>
#
# * 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      = <%= node['mysql']['tunable']['max_allowed_packet'] %>

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

[isamchk]
key_buffer              = <%= node['mysql']['tunable']['max_allowed_packet'] %>

#
# * NDB Cluster
#
# See /usr/share/doc/mysql-server-*/README.Debian for more information.
#
# The following configuration is read by the NDB Data Nodes (ndbd processes)
# not from the NDB Management Nodes (ndb_mgmd processes).
#
# [MYSQL_CLUSTER]
# ndb-connectstring=127.0.0.1

<% case node['platform'] -%>
<% when "centos", "redhat", "fedora", "suse", "scientific", "amazon"-%>
#
# * BerkeleyDB
#
# Using BerkeleyDB is now discouraged as its support will cease in 5.1.12.
skip-bdb
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords           = <%= node['mysql']['old_passwords'] %>

<% else -%>
#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir <%= node['mysql']['confd_dir'] %>/
<% end -%>