Add my.cnf.

my.cnf

@@ -0,0 +1,53 @@
+#
+[mysqld_safe]
+flush_caches
+numa_interleave
+#
+[mysqld]
+back_log = 65535
+binlog_format = ROW
+character_set_server = utf8mb4
+collation_server = utf8mb4_general_ci
+datadir = /var/lib/mysql
+default_storage_engine = InnoDB
+expand_fast_index_creation = 1
+expire_logs_days = 7
+innodb_autoinc_lock_mode = 2
+innodb_buffer_pool_instances = 16
+innodb_buffer_pool_populate = 1
+innodb_buffer_pool_size = 12G
+innodb_data_file_path = ibdata1:64M;ibdata2:64M:autoextend
+innodb_file_format = Barracuda
+innodb_file_per_table
+innodb_flush_log_at_trx_commit = 2
+innodb_flush_method = O_DIRECT
+innodb_io_capacity = 1600
+innodb_large_prefix
+innodb_locks_unsafe_for_binlog = 1
+innodb_log_file_size = 64M
+innodb_print_all_deadlocks = 1
+innodb_read_io_threads = 64
+innodb_stats_on_metadata = FALSE
+innodb_support_xa = FALSE
+innodb_write_io_threads = 64
+log-bin = mysqld-bin
+log-queries-not-using-indexes
+log-slave-updates
+long_query_time = 1
+max_allowed_packet = 64M
+max_connect_errors = 4294967295
+max_connections = 4096
+min_examined_row_limit = 1000
+performance-schema-instrument='%=ON'
+port = 3306
+relay-log-recovery = TRUE
+skip-name-resolve
+slow_query_log = 1
+slow_query_log_timestamp_always = 1
+table_open_cache = 4096
+thread_cache = 1024
+tmpdir = /srv/tmp
+transaction_isolation = READ-COMMITTED
+updatable_views_with_limit = 0
+user = mysql
+wait_timeout = 60