MySQL MyISAM 優化實戰：關鍵參數調優與生產級配置模板

生產級配置模板（Dell R710、16G、日 IP 100-200W）

[mysqld]
back_log = 512
max_connections = 3000
table_open_cache = 4096
max_allowed_packet = 32M
read_buffer_size = 8M
read_rnd_buffer_size = 64M
sort_buffer_size = 16M
join_buffer_size = 16M
thread_cache_size = 16
thread_concurrency = 8
query_cache_size = 128M
query_cache_limit = 4M
key_buffer_size = 128M
bulk_insert_buffer_size = 256M
myisam_sort_buffer_size = 256M
myisam_max_sort_file_size = 10G
innodb_buffer_pool_size = 6G
innodb_log_file_size = 512M
innodb_flush_log_at_trx_commit = 2
innodb_thread_concurrency = 16
open_files_limit = 10240

常用狀態檢查命令

SHOW STATUS;
SHOW VARIABLES;
SHOW ENGINES;
SHOW ENGINE INNODB STATUS;