Does MySQL support master master replication?
MySQL / MariaDB MariaDB: natively supports multi-master replication since version 10.0, but conflict resolution is not supported, so each master must contain different databases. On MySQL, this is named multi-source available since version 5.7.
How do I stop master master replication in MySQL?
There does not exist a STOP MASTER; command nor is there a manual mechanism from the Master to stop Replication. You would have to go to each Slave and run on of the following: STOP SLAVE; (Kills the IO Thread and SQL Thread) STOP SLAVE IO_THREAD; (Kills the IO Thread only)
What is MySQL master master replication?
MySQL replication is the process by which a single data set, stored in a MySQL database, will be live-copied to a second server. This configuration, called “master-slave” replication, is a typical setup. This subtle but important difference allows us to perform mysql read or writes from either server.
How do I fix master master replication in MySQL?
On the GS, using the information just gathered from the BS, execute: CHANGE MASTER TO master_log_file=’mysql-bin. xxxxxx’, master_log_pos=yy; Then, on the GS, execute START SLAVE. You should now have two way replication again and you can verify this via SHOW SLAVE STATUS on the GS.
How MySQL master master replication works?
Replication works as follows: Whenever the master’s database is modified, the change is written to a file, the so-called binary log, or binlog. The slave has another thread, called the SQL thread, that continuously reads the relay log and applies the changes to the slave server.
How do I turn off MySQL replication?
To completely disable replication with a master-master setup, you should do the following on each slave:
- STOP SLAVE;
- RESET SLAVE; (Use RESET SLAVE ALL; for MySQL 5.5. 16 and later)
- Edit the my. cnf and remove any information (if present) which refers to “master-…” or “replicate-…” options.
- Restart mysqld.
What is Slave_SQL_Running?
Slave_SQL_Running : Whether the SQL thread for executing events in the relay log is running. As with the I/O thread, this should normally be Yes . Last_IO_Error , Last_SQL_Error : The last errors registered by the I/O and SQL threads when processing the relay log. Ideally these should be blank, indicating no errors.