January 2018
Intermediate to advanced
446 pages
12h 57m
English
Content preview from MySQL 8 Cookbook
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How to do it...
On a high level, you need to install and enable semi-synchronous plugins on both the master and all slaves where you want semi-synchronous replication. You have to restart the slave IO thread to bring the changes into effect. You can adjust the value of rpl_semi_sync_master_timeout according to your network and application. A value of 1 second is a good start:
- On the master, install the rpl_semi_sync_master plugin:
mysql> INSTALL PLUGIN rpl_semi_sync_master SONAME 'semisync_master.so';Query OK, 0 rows affected (0.86 sec)
Verify that the plugin is activated:
mysql> SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE '%semi%';+----------------------+---------------+| PLUGIN_NAME | PLUGIN_STATUS ...
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