Smallest MySQL install my.cnf ... Anyone?

[drmike]

Anyone using/have/recommend a very small my.cnf config for 128MB or less RAM server?

Know the topic has been punted around here and there.   Never bookmarked and/or tried one.  Today is one of those days to experiment.

Anyone have one?

 

[SeriesN]

cp /usr/share/mysql/my-small.cnf /etc/my.cnf

 

[drmike]

cp /usr/share/mysql/my-small.cnf /etc/my.cnf

 

I don't have that sitting here now, but what is the small.cnf supposed to fit into RAM wise?

 

[SeriesN]

This is default mysql config for smaller system. Supposed to be for system with ~64mb ram.

# Example MySQL config file for small systems.

#

# This is for a system with little memory (<= 64M) where MySQL is only used

# from time to time and it's important that the mysqld daemon

# doesn't use much resources.

#

# MySQL programs look for option files in a set of

# locations which depend on the deployment platform.

# You can copy this option file to one of those

# locations. For information about these locations, see:

# http://dev.mysql.com/doc/mysql/en/option-files.html

#

# In this file, you can use all long options that a program supports.

# If you want to know which options a program supports, run the program

# with the "--help" option.

 

# The following options will be passed to all MySQL clients

[client]

#password       = your_password

port            = 3306

socket          = /var/lib/mysql/mysql.sock

 

# Here follows entries for some specific programs

 

# The MySQL server

[mysqld]

port            = 3306

socket          = /var/lib/mysql/mysql.sock

skip-locking

key_buffer_size = 16K

max_allowed_packet = 1M

table_open_cache = 4

sort_buffer_size = 64K

read_buffer_size = 256K

read_rnd_buffer_size = 256K

net_buffer_length = 2K

thread_stack = 128K

 

# Don't listen on a TCP/IP port at all. This can be a security enhancement,

# if all processes that need to connect to mysqld run on the same host.

# All interaction with mysqld must be made via Unix sockets or named pipes.

# Note that using this option without enabling named pipes on Windows

# (using the "enable-named-pipe" option) will render mysqld useless!

#

#skip-networking

server-id       = 1

 

# Uncomment the following if you want to log updates

#log-bin=mysql-bin

 

# binary logging format - mixed recommended

#binlog_format=mixed

 

# Uncomment the following if you are using InnoDB tables

#innodb_data_home_dir = /var/lib/mysql

#innodb_data_file_path = ibdata1:10M:autoextend

#innodb_log_group_home_dir = /var/lib/mysql

# You can set .._buffer_pool_size up to 50 - 80 %

# of RAM but beware of setting memory usage too high

#innodb_buffer_pool_size = 16M

#innodb_additional_mem_pool_size = 2M

# Set .._log_file_size to 25 % of buffer pool size

#innodb_log_file_size = 5M

#innodb_log_buffer_size = 8M

#innodb_flush_log_at_trx_commit = 1

#innodb_lock_wait_timeout = 50

 

[mysqldump]

quick

max_allowed_packet = 16M

 

[mysql]

no-auto-rehash

# Remove the next comment character if you are not familiar with SQL

#safe-updates

 

[myisamchk]

key_buffer_size = 8M

sort_buffer_size = 8M

 

[mysqlhotcopy]

interactive-timeout

 

 

[vanarp]

You may want to try this:


$ cat my.cnf
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
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
skip-external-locking
bind-address = 127.0.0.1
key_buffer = 8M
max_allowed_packet = 1M
thread_stack = 192K
thread_cache_size = 8
myisam-recover = BACKUP
query_cache_limit = 1M
query_cache_size = 4M
expire_logs_days = 10
max_binlog_size = 100M
skip-innodb
default-storage-engine=MyISAM
[mysqldump]
quick
quote-names
max_allowed_packet = 1M
[mysql]
[isamchk]
key_buffer = 8M
!includedir /etc/mysql/conf.d/

Anything in MBs can be reduced further if you see a problem. This is based on Minstall's config values. It is forced to use MyISAM instead of default InnoDB.