mysql-group-replication 是由mysql-5.7.17这个版本提供的强一致的高可用集群解决方案
1、环境规划
主机ip 主机名 172.16.192.201 balm001 172.16.192.202 balm002 172.16.192.203 balm003
2、mysql的配置文件
balm001的配置如下：
[mysql] auto-rehash [mysqld] ####: for global user =mysql # mysql basedir =/usr/local/mysql # /usr/local/mysql/ datadir =/usr/local/mysql_datas/3306 # /usr/local/mysql/data server_id =1 # 0 port =3306 # 3306 character_set_server =utf8 # latin1 log_timestamps =system # utc socket =/tmp/mysql.sock # /tmp/mysql.sock read_only =1 # off skip-slave-start =1 # auto_increment_increment =1 # 1 auto_increment_offset =1 # 1 lower_case_table_names =1 # 0 secure_file_priv = # null ####: for binlog binlog_format =row # row log_bin =mysql-bin # off binlog_rows_query_log_events =on # off log_slave_updates =on # off expire_logs_days =4 # 0 binlog_cache_size =32768 # 32768(32k) binlog_checksum =none # CRC32 sync_binlog =1 # 1 ####: for error-log log_error =error.log # /usr/local/mysql/data/localhost.localdomain.err ####: for slow query log ####: for gtid gtid_executed_compression_period =1000 # 1000 gtid_mode =on # off enforce_gtid_consistency =on # off ####: for replication master_info_repository =table # file relay_log_info_repository =table # file ####: for group replication transaction_write_set_extraction =XXHASH64 # off loose-group_replication_group_name ="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa" # loose-group_replication_start_on_boot =off # off loose-group_replication_local_address ="172.16.192.201:24901" # loose-group_replication_group_seeds ="172.16.192.201:24901,172.16.192.202:24901,172.16.192.203:24901" loose-group_replication_bootstrap_group =off # off ####: for innodb default_storage_engine =innodb # innodb default_tmp_storage_engine =innodb # innodb innodb_data_file_path =ibdata1:12M:autoextend # ibdata1:12M:autoextend innodb_temp_data_file_path =ibtmp1:12M:autoextend # ibtmp1:12M:autoextend innodb_buffer_pool_filename =ib_buffer_pool # ib_buffer_pool innodb_log_group_home_dir =./ # ./ innodb_log_files_in_group =2 # 2 innodb_log_file_size =48M # 50331648(48M) innodb_file_format =Barracuda # Barracuda innodb_file_per_table =on # on innodb_page_size =16k # 16384(16k) innodb_thread_concurrency =0 # 0 innodb_read_io_threads =4 # 4 innodb_write_io_threads =4 # 4 innodb_purge_threads =4 # 4 innodb_print_all_deadlocks =on # off innodb_deadlock_detect =on # on innodb_lock_wait_timeout =50 # 50 innodb_spin_wait_delay =6 # 6 innodb_autoinc_lock_mode =2 # 1 innodb_stats_persistent =on # on innodb_stats_persistent_sample_pages =20 # 20 innodb_buffer_pool_instances =1 # 1 innodb_adaptive_hash_index =on # on innodb_change_buffering =all # all innodb_change_buffer_max_size =25 # 25 innodb_flush_neighbors =1 # 1 innodb_flush_method =O_DIRECT # innodb_doublewrite =on # on innodb_log_buffer_size =16M # 16777216(16M) innodb_flush_log_at_timeout =1 # 1 innodb_flush_log_at_trx_commit =1 # 1 innodb_buffer_pool_size =134217728 # 134217728(128M) autocommit =1 # 1 #### for performance_schema performance_schema =on # on performance_schema_consumer_events_stages_current =on # off performance_schema_consumer_events_stages_history =on # off performance_schema_consumer_events_stages_history_long =off # off performance_schema_consumer_statements_digest =on # on performance_schema_consumer_events_statements_current =on # on performance_schema_consumer_events_statements_history =on # on performance_schema_consumer_events_statements_history_long =off # off performance_schema_consumer_events_waits_current =on # off performance_schema_consumer_events_waits_history =on # off performance_schema_consumer_events_waits_history_long =off # off performance_schema_consumer_global_instrumentation =on # on performance_schema_consumer_thread_instrumentation =on # on