Question

How to use Managed MySQL Database read-only node with WordPress

I have setup a Manage MySQL Database primary note and a read-only node and want to use them for my WordPress site.

Does the “read-only node” works automatically as in auto split the read transactions?

If not, how do I setup it so that my WordPress site will make use of the read-only node?

Thank you.


Submit an answer


This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Accepted Answer

Does the “read-only node” works automatically as in auto split the read transactions?

No, usually applications have to route the queries themself. Some ORMs makes this easier. In Node.js, I use Sequelize and see their docs: https://sequelize.org/master/manual/read-replication.html

How do I setup it so that my WordPress site will make use of the read-only node?

As far as I know, WordPress doesn’t have this functionality inbuilt. So you’ll have to route queries manually. See https://wordpress.stackexchange.com/questions/243438/configure-wordpress-to-read-from-database-only-never-write

There also some plugins that do this, like “HyperDB” (I haven’t tried it).

Also worth reading: https://jeffreyeverhart.com/2019/04/10/scaling-wordpress-databases-remote-servers-sharding-replication-ludicrous-db-aws/

Answering my own question.

WordPress site can setup mysql replication (read-only) using HyperDB plugin.

Refer: https://www.interserver.net/tips/kb/high-availability-wordpress-hyperdb/

Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

card icon
Get our biweekly newsletter

Sign up for Infrastructure as a Newsletter.

Sign up
card icon
Hollie's Hub for Good

Working on improving health and education, reducing inequality, and spurring economic growth? We’d like to help.

Learn more
card icon
Become a contributor

You get paid; we donate to tech nonprofits.

Learn more
Welcome to the developer cloud

DigitalOcean makes it simple to launch in the cloud and scale up as you grow – whether you’re running one virtual machine or ten thousand.

Learn more ->
DigitalOcean Cloud Control Panel