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[mysqld]
# GENERAL #
user = mysql
port = 3306
socket = /data1/db3306/my3306.sock
pid_file = /data1/db3306/mysql.pid
datadir = /data1/db3306/
tmpdir = /data1/tmp
log_bin = /data1/db3306/3306-mysql-bin
relay-log = /data1/db3306/3306-relay-bin
log_error = /data1/db3306/error.log
slow_query_log_file = /data1/db3306/slow-queries.log
long_query_time=1
sync_binlog = 0
expire_logs_days = 7
back_log=1024
skip-name-resolve
skip-slave-start
skip-external-locking
skip-character-set-client-handshake
explicit_defaults_for_timestamp=true
default_storage_engine = InnoDB
bind-address=0.0.0.0
#lower_case_table_names  = 0
myisam_recover = FORCE,BACKUP
transaction-isolation = READ-COMMITTED
table_definition_cache = 4096
table_open_cache = 4096

# connection #
max_connections = 1100
max_user_connections = 1000
max_connect_errors = 1000

# timeout #
wait_timeout = 100
interactive_timeout = 100
lock_wait_timeout = 3
connect_timeout = 20
slave-net-timeout = 30

# character # 
character-set-server=utf8
init-connect='SET NAMES utf8'

# disabled query cache #
query_cache_type = 0
query_cache_size = 0

# replication #
server_id=71493306
gtid_mode=ON
enforce-gtid-consistency
log-slave-updates
binlog-format=row
slave-parallel-workers=6
master-info-repository=TABLE
relay-log-info-repository=TABLE
sync_master_info = 10000
slave_sql_verify_checksum=1
skip-slave-start

# session #
key_buffer_size = 128M
tmp_table_size = 32M
max_heap_table_size = 32M
max_allowed_packet = 32M
bulk_insert_buffer_size = 32M
sort_buffer_size = 128K
read_buffer_size = 1M
read_rnd_buffer_size = 1M
join_buffer_size = 128K
myisam_sort_buffer_size = 32M
tmp_table_size = 32M
max_heap_table_size = 64M
thread_cache_size = 64
#thread_concurrency = 32
thread_stack = 192K

# INNODB #
innodb_flush_method = O_DIRECT
innodb_data_home_dir = /data1/db3306/
innodb_data_file_path = ibdata1:10M:autoextend
#redo log
innodb_log_group_home_dir=/data1/db3306/
innodb_log_files_in_group = 3
innodb_log_file_size = 1G
#innodb performance
innodb_flush_log_at_trx_commit = 0
innodb_file_per_table = 1
innodb_buffer_pool_instances = 8
innodb_io_capacity = 2000
innodb_lock_wait_timeout = 30
binlog_error_action = ABORT_SERVER
innodb_buffer_pool_size = 256M
innodb_max_dirty_pages_pct=90
innodb_file_format=Barracuda 
innodb_support_xa = 0
innodb_buffer_pool_dump_at_shutdown = 1
innodb_buffer_pool_load_at_startup = 1