my3308.cnf

[client]
port            = 3308
socket          = /tmp/mysql3308.sock

[mysql]
prompt                         = mysql [\d]>
default_character_set          = utf8
no-auto-rehash

[mysqld]
#misc
user = mysql
basedir = /usr/local/mysql
datadir = /data/mysql/mysql_3308/data
port = 3308
socket = /tmp/mysql3308.sock
event_scheduler = 0

tmpdir=/data/mysql/mysql_3308/tmp
#timeout
interactive_timeout = 43200
wait_timeout = 43200

#character set
character-set-server = utf8

open_files_limit = 65535
max_connections = 100
max_connect_errors = 100000
#
explicit_defaults_for_timestamp
#logs
log-output=file
slow_query_log = 1
slow_query_log_file = slow.log
log-error = error.log
log_error_verbosity=3
pid-file = mysql.pid
long_query_time = 1
#log-slow-admin-statements = 1
#log-queries-not-using-indexes = 1
log-slow-slave-statements = 1

#binlog
binlog_format = row
server-id = 1343308
log-bin = /data/mysql/mysql_3308/logs/mysql-bin
binlog_cache_size = 1M
max_binlog_size = 200M
max_binlog_cache_size = 2G
sync_binlog = 0
expire_logs_days = 10


#group replication
server_id=1013308
gtid_mode=ON
enforce_gtid_consistency=ON
master_info_repository=TABLE
relay_log_info_repository=TABLE
binlog_checksum=NONE
log_slave_updates=ON
binlog_format=ROW

transaction_write_set_extraction=XXHASH64
loose-group_replication_group_name="13855fca-d2ab-11e6-8f37-005056b8286c"
loose-group_replication_start_on_boot=off
loose-group_replication_local_address= "192.168.128.132:23308"
loose-group_replication_group_seeds= "192.168.128.130:33061,192.168.128.131:33071,192.168.128.132:33081"
loose-group_replication_bootstrap_group= off

loose-group_replication_single_primary_mode=off
loose-group_replication_enforce_update_everywhere_checks=on

#relay log
skip_slave_start = 1
max_relay_log_size = 500M
relay_log_purge = 1
relay_log_recovery = 1
#slave-skip-errors=1032,1053,1062

#buffers & cache
table_open_cache = 2048
table_definition_cache = 2048
table_open_cache = 2048
max_heap_table_size = 96M
sort_buffer_size = 2M
join_buffer_size = 2M
thread_cache_size = 256
query_cache_size = 0
query_cache_type = 0
query_cache_limit = 256K
query_cache_min_res_unit = 512
thread_stack = 192K
tmp_table_size = 96M
key_buffer_size = 8M
read_buffer_size = 2M
read_rnd_buffer_size = 16M
bulk_insert_buffer_size = 32M

#myisam
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1

#innodb
innodb_buffer_pool_size = 500M
innodb_buffer_pool_instances = 1
innodb_data_file_path = ibdata1:100M:autoextend
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 64M
innodb_log_file_size = 256M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_file_per_table = 1
innodb_rollback_on_timeout
innodb_status_file = 1
innodb_io_capacity = 2000
transaction_isolation = READ-COMMITTED
innodb_flush_method = O_DIRECT