Optimal my.cnf settings for large sites

[mysqld]
skip-networking
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
log-slow-queries  = /var/log/mysql_slow.log
open_files_limit =24000
symbolic-links=0
thread_concurrency = 8
query_cache_size = 32M
thread_cache_size = 8
myisam_sort_buffer_size = 64M
read_rnd_buffer_size = 8M
read_buffer_size = 2M
sort_buffer_size = 2M
table_cache = 512
max_allowed_packet = 32M
key_buffer = 384M
max_heap_table_size = 64M
query_cache_limit = 2M
 
innodb_file_per_table = 1
innodb_additional_mem_pool_size = 16M
innodb_flush_log_at_trx_commit = 0
innodb_log_buffer_size  = 8M
innodb_buffer_pool_size = 1G
innodb_log_file_size    = 24M
innodb_thread_concurrency =     16
innodb_lock_wait_timeout =	120
innodb_data_file_path   = ibdata1:10M:autoextend
innodb_file_io_threads  = 4
innodb_max_dirty_pages_pct =    90
 
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

Comments

Post new comment

  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>
  • You can enable syntax highlighting of source code with the following tags: <code>, <blockcode>, <c>, <cpp>, <drupal5>, <drupal6>, <java>, <javascript>, <php>, <python>, <ruby>. PHP source code can also be enclosed in <?php ... ?> or <% ... %>.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.

More information about formatting options

To prevent automated spam submissions leave this field empty.