mysql服务器优化配置文件

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

back_log=600
max_connections=3000
max_connect_errors=6000
table_cache=614
external-locking=FALSE
max_allowed_packet=32M
sort_buffer_size=2M
join_buffer_size=2M
thread_cache_size=300
thread_concurrency=8
query_cache_size=64M
query_cache_limit=4M
query_cache_min_res_unit=2k
thread_stack=192K
transaction_isolation=READ-COMMITTED
tmp_table_size=256M
max_heap_table_size=256M
long_query_time=2
expire_logs_days=7
key_buffer_size=2048M
read_buffer_size=1M
read_rnd_buffer_size=16M
bulk_insert_buffer_size=64M
innodb_additional_mem_pool_size=16M
innodb_buffer_pool_size=2048M
innodb_data_file_path=ibdata1:1024M:autoextend
innodb_file_io_threads=4
innodb_thread_concurrency=8
innodb_flush_log_at_trx_commit=2
innodb_log_file_size=128M
innodb_log_files_in_group=3
innodb_max_dirty_pages_pct=90
innodb_lock_wait_timeout=120
innodb_file_per_table=0
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原文地址:https://www.cnblogs.com/ice-line/p/5646449.html