mysql配置

my.cnf

[client]
port = 3306
socket = /var/lib/mysql/mysql.sock
[mysql]
no-auto-rehash

[mysqld]
#Misc
server-id = 1
user = mysql
port = 3306
socket = /var/lib/mysql/mysql.sock
datadir = /data/mysql_data
ft_min_word_len=1

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

#Performance
log-bin=mysql-bin
net_read_timeout = 6000
net_write_timeout = 9000
wait_timeout = 28800
interactive_timeout = 28800
open_files_limit = 10240
back_log = 300
max_connections = 5000
max_connect_errors = 50
external-locking = FALSE
performance_schema = 1

#buffers & cache
table_definition_cache = 2048
max_heap_table_size = 246M
tmp_table_size = 246M
sort_buffer_size = 2M
join_buffer_size = 2M
thread_cache_size = 256
#thread_concurrency = 8
query_cache_type = ON
query_cache_size = 32M
query_cache_limit = 2M
query_cache_min_res_unit = 2k
thread_stack = 192K
read_buffer_size = 1M
read_rnd_buffer_size = 16M
bulk_insert_buffer_size = 64M

#logs
#log-output=file
log-error=/data/mysql_log/error.log
log_warnings = 2
slow-query-log
slow-query-log-file=/data/mysql_log/slow-log.log
long_query_time = 1

#binlog & replication
binlog_row_image = full
binlog_format = row
binlog_cache_size = 4M
max_binlog_cache_size = 1G
max_binlog_size = 1G
expire_logs_days = 7
relay-log-purge = 1
sync_binlog = 1
skip-slave-start = 1
log-slave-updates  = 1

#Myisam engine
key_buffer_size = 1620M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 1G
myisam_repair_threads = 1
myisam_recover
lower_case_table_names = 1
skip-name-resolve
slave-skip-errors = 1032,1062

#Innodb engine
innodb_additional_mem_pool_size = 1660M
innodb_buffer_pool_size = 25G
innodb_data_file_path = ibdata1:100M:autoextend
innodb_file_per_table = 1
innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 16M
innodb_log_file_size = 256M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 75
innodb_lock_wait_timeout = 120
innodb_rollback_on_timeout
innodb_status_file = 1
innodb_io_capacity = 800
transaction_isolation = READ-COMMITTED
innodb_flush_method = O_DIRECT
innodb-support-xa = 0
innodb_read_io_threads = 8
innodb_write_io_threads = 8
innodb_file_format = Barracuda

[mysqldump]
quick
max_allowed_packet = 7132M