Mysql 5.7多源复制及并行复制功能

准备环境:

os version:CentOS release 6.5 (Final)

服务器信息:

Master1:192.168.1.29

Master2:192.168.1.37

Slave:192.168.1.86

1,修改my.cnf

Slave中的my.cnf加入以下参数

启用enhanced multi-threaded slave （多线程复制）

slave-parallel-type=LOGICAL_CLOCK

slave-parallel-workers=8

master_info_repository=TABL

relay_log_info_repository=TABLE

relay_log_recovery=ON

可以通过以下监控并行复制

mysql> show tables like 'replication%';

+---------------------------------------------+

| Tables_in_performance_schema (replication%) |

+---------------------------------------------+

| replication_applier_configuration           |

| replication_applier_status                  |

| replication_applier_status_by_coordinator   |

| replication_applier_status_by_worker        |

| replication_connection_configuration        |

| replication_connection_status               |

| replication_group_member_stats              |

| replication_group_members                   |

+----------------------------------

 2，授权，在master1上和master2上授权，允许slave复制

 3，change master

change master tomaster_host="192.168.1.29",master_port=3306,master_user="root",master_password="Password@123456"FOR CHANNEL "master1";

change master tomaster_host="192.168.1.37",master_port=3306,master_user="root",master_password="Password@123456"FOR CHANNEL "master2";

4,启动slave

start slave for channel "master1";

start slave for channel "master2";