Question

I have 3 Database Servers (MYSQL) that I want to know how to synchronize at a time. For centos8.

I have 3 Database Servers (MYSQL) that I want to know how to synchronize at a time. For centos8. Adding, subtracting, deleting, or changing something in the database is like changing 3 databases at the same time.


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Hi @tusherghosh2015,

I think what you are looking at is a Master/Slave configuration. You have one master and two slave databases. All databases are on every Droplet. When you change the information on your Master, it will automatically change the databases on your Slave Droplet’s as well.

DigitalOcean have a pretty good tutorial on how to setup replication. You can check it out here:

https://www.digitalocean.com/community/tutorials/how-to-set-up-replication-in-mysql

https://www.digitalocean.com/community/tutorials/how-to-set-up-mysql-master-master-replication

This setup is a very popular one. It’s used in production environments all the time. When working with databases, it can be useful to have multiple copies of your data. This provides redundancy in case one of the database servers fails and can improve a database’s availability, scalability, and overall performance. The practice of synchronizing data across multiple separate databases is called replication.

Hi @tusherghosh2015,

You can plan on implementing MySQL Replication. If database servers should carry the same data and should be synced.

For reference on replication : https://dev.mysql.com/doc/mysql-replication-excerpt/8.0/en/replication-howto.html https://www.digitalocean.com/community/tutorials/how-to-set-up-replication-in-mysql

Regards, Rajkishore