怎样进行MySQL5.7.17- Group Replication搭建

怎样进行MySQL5.7.17- Group Replication搭建，针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。

背景：

• mysql>INSTALL PLUGIN group_replication SONAME 'group_replication.so'

• 
  

  mysql> SHOW PLUGINS;
  +----------------------------+----------+--------------------+----------------------+-------------+
  | Name                       | Status   | Type               | Library              | License     |
  +----------------------------+----------+--------------------+----------------------+-------------+
  | binlog                     | ACTIVE   | STORAGE ENGINE     | NULL                 | PROPRIETARY |
  
  (...)
  
  | group_replication          | ACTIVE   | GROUP REPLICATION  | group_replication.so | PROPRIETARY |
  +----------------------------+----------+--------------------+----------------------+-------------+

  mysql> SET GLOBAL group_replication_bootstrap_group=ON;
  mysql> START GROUP_REPLICATION;
  mysql> SET GLOBAL group_replication_bootstrap_group=OFF;
  mysql> SELECT * FROM performance_schema.replication_group_members;
  +---------------------------+--------------------------------------+-------------+-------------+--------------+
  | CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
  +---------------------------+--------------------------------------+-------------+-------------+--------------+
  | group_replication_applier | 550a7cbd-ccce-11e6-829a-a2d813521b2e | sh347       |        3307 | ONLINE       |
  +---------------------------+--------------------------------------+-------------+-------------+--------------+
  1 row in set (0.00 sec)
  
  

• 
  

2.4插入一些模拟数据

1. mysql> CREATE DATABASE test;
   

2. Query OK, 1 row affected (0.00 sec)
   

3. 
   

4. mysql> use test;
   

5. Database changed
   

6. mysql> CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 TEXT NOT NULL);
   

7. Query OK, 0 rows affected (0.00 sec)
   

8. 
   

9. mysql> INSERT INTO t1 VALUES (1, 'Luis');
   

10. Query OK, 1 row affected (0.01 sec)

3 往集群里面添加数据库实例

1. 3.1修改第二台数据库配置文件

1. 
   

1. [client]
   

2. port = 24802
   

3. socket = /home/data/mydata/3307/mysql.sock
   

4. 
   

5. 
   

6. [mysqld]
   

7. port = 24802
   

8. socket = /home/data/mydata/3307/mysql.sock
   

9. basedir = /home/data/mysql
   

10. datadir = /home/data/mydata/3307
    

11. pid-file = /home/data/mydata/3307/mysql.pid
    

12. ##group replication####
    

13. server_id = 2
    

14. gtid_mode =ON
    

15. enforce_gtid_consistency = ON
    

16. master_info_repository = TABLE
    

17. relay_log_info_repository=TABLE
    

18. binlog_checksum = NONE
    

19. log_slave_updates = ON
    

20. log_bin=binlog
    

21. binlog_format=ROW
    

22. 
    

23. transaction_write_set_extraction=XXHASH64
    

24. loose-group_replication_group_name = "77e497e2-c59a-11e6-9a68-525400159185"
    

25. loose-group_replication_start_on_boot=off
    

26. loose-group_replication_local_address="192.168.1.14:34062"
    

27. loose-group_replication_group_seeds="192.168.1.247:34061,192.168.1.14:34062,192.168.1.242:34063"
    

28. loose-group_replication_bootstrap_group=off
    

29. loose-group_replication_single_primary_mode=false
    

30. loose-group_replication_enforce_update_everywhere_checks=TRUE

1. 3.2启动数据库进行配置
   

1. SET SQL_LOG_BIN=0;
   

2. CREATE USER rpl_user@'%';
   

3. GRANT REPLICATION SLAVE ON *.* TO rpl_user@'%' IDENTIFIED BY 'rpl_pass';
   

4. SET SQL_LOG_BIN=1;
   

5. CHANGE MASTER TO MASTER_USER='rpl_user', MASTER_PASSWORD='rpl_pass' FOR CHANNEL 'group_replication_recovery'

2. 
   

1. 3.3 安装引擎，加入gp组
   
   

1. mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so';
   

2. mysql> START GROUP_REPLICATION;
   

3. mysql> SELECT * FROM performance_schema.replication_group_members;

4. +---------------------------+--------------------------------------+---------------------------+-------------+--------------+
   

5. | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
   

6. +---------------------------+--------------------------------------+---------------------------+-------------+--------------+
   

7. | group_replication_applier | 29a03be3-cccf-11e6-9dac-00163e2d2c29 | interface.test.haodai.com | 24802 | ONLINE |
   

8. | group_replication_applier | 550a7cbd-ccce-11e6-829a-a2d813521b2e | sh347 | 3307 | ONLINE |
   

9. +---------------------------+--------------------------------------+---------------------------+-------------+--------------+

10. 注意：与2操作相比少了两个步骤，千万别执行那两个步骤！那两个步骤是在搭建gp 初始化才需要执行的两个步骤

2. 3.4检验数据
   

1. mysql> show databases;
   

2. +--------------------+
   

3. | Database |
   

4. +--------------------+
   

5. | information_schema |
   

6. | mysql |
   

7. | performance_schema |
   

8. | sys |
   

9. | test |
   

10. +--------------------+
    

11. 5 rows in set (0.00 sec)
    

12. 
    

13. mysql> select * from test.t1;
    

14. +----+------+
    

15. | c1 | c2 |
    

16. +----+------+
    

17. | 1 | Luis |
    

18. +----+------+
    

19. 1 row in set (0.00 sec)

4 模拟数据库down机

1. 关闭247数据库

2. mysql> SELECT * FROM performance_schema.replication_group_members;
   

3. 
   

4. | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
   

5. 
   

6. | group_replication_applier | | | NULL | OFFLINE |
   

7. 
   

8. 1 row in set (0.00 sec)
   

9. 
   

10. mysql> start GROUP_REPLICATION;  ###重新打开即可
    

11. Query OK, 0 rows affected (3.50 sec)
    

12. 
    

13. mysql> SELECT * FROM performance_schema.replication_group_members;
    

14. 
    

15. | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
    

16. 
    

17. | group_replication_applier | 29a03be3-cccf-11e6-9dac-00163e2d2c29 | interface.test.haodai.com | 24802 | ONLINE |
    

18. | group_replication_applier | 550a7cbd-ccce-11e6-829a-a2d813521b2e | sh347 | 3307 | ONLINE |
    

19. 
    

20. 2 rows in set (0.00 sec)
    

21. 
    

22. mysql> stop GROUP_REPLICATION;
    

23. Query OK, 0 rows affected (8.47 sec)
    

24. 
    

25. mysql> SELECT * FROM performance_schema.replication_group_members;
    

26. 
    

27. | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
    

28. 
    

29. | group_replication_applier | 550a7cbd-ccce-11e6-829a-a2d813521b2e | sh347 | 3307 | OFFLINE |
    

30. 
    

31. 1 row in set (0.00 sec)
    

32. 
    

33. mysql> start GROUP_REPLICATION;
    

34. Query OK, 0 rows affected (5.49 sec)
    

35. 
    

36. mysql> SELECT * FROM performance_schema.replication_group_members;
    

37. 
    

38. | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE |
    

39. 
    

40. | group_replication_applier | 29a03be3-cccf-11e6-9dac-00163e2d2c29 | interface.test.haodai.com | 24802 | ONLINE |
    

41. | group_replication_applier | 550a7cbd-ccce-11e6-829a-a2d813521b2e | sh347 | 3307 | ONLINE |
    

42. 
    

43. 2 rows in set (0.00 sec)

至此，数据库集群组搭建完毕！

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