my37_MGR流控对数据库性能的影响以及MGR与主从的性能对比

mysql> show variables like 'group_replication_flow_control_applier_threshold';

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

| Variable_name                                    | Value    |

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

| group_replication_flow_control_applier_threshold | 30000000 |

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

1 row in set (0.00 sec)

mysql> show variables like 'group_replication_flow_control_certifier_threshold';

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

| Variable_name                                      | Value    |

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

| group_replication_flow_control_certifier_threshold | 30000000 |

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

1 row in set (0.00 sec)

16：05至16:10这段时间，做了主从转MGR的操作，并开了流控，流控的具体设置为上面的显示，之前测试这个3千万，相当于没有流控，性能接近于主从