January 2019
Intermediate to advanced
286 pages
7h 41m
English
Content preview from Advanced MySQL 8
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Network partitioning
A group replication plugin assumes that we have deployed group members on a great network. But networks are fragile. Let's look at an example. In our group replication topology, we have five servers:
mysql> SELECT MEMBER_ID,MEMBER_HOST,MEMBER_PORT,MEMBER_STATE FROM performance_schema.replication_group_members;+--------------------------------------+-------------+-------------+--------------| MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE|+--------------------------------------+-------------+-------------+--------------| 2322f8f4-2bbg-34w4-hh64-21i3ll123i98 | 127.0.0.1 | 19002 | ONLINE || 2312f7b4-2bbg-34w4-hb59-21i3ll123i98 | 127.0.0.1 | 19001 | ONLINE || 2327v9q2-2bbg-34w4-bb21-21i3ll123i98 | 127.0.0.1 | 19000 ...