WordPress Backend HA (Automatic failover)
You can achieve automatic failover using a synchronous service, like Galera cluster. It requires three nodes, but you can set up two nodes there, along with an arbitrator.
database
Retrieve data from the database to table such as comments in the admin control panel
Retrieve data from the database to table such as comments in the admin control panel
WordPress returns to an old version
WordPress returns to an old version
How to scan barcode and store data into a database [closed]
How to scan barcode and store data into a database [closed]
Dynamic content in template
This sounds like page caching. Page caching is a good thing, it keeps your site fast. The downside is that any personalized data is not accurate, which is why the clock is not updated. It looks like perhaps WPEngine doesn’t give you control over page caching – https://wpengine.com/blog/no-caching-plugins/ You may need to speak to them … Read more
Execute long and heavy processes
Execute long and heavy processes
Auto login subdomain from main domain on single sites with different DB
Auto login subdomain from main domain on single sites with different DB
custom user role wordpress – grant guest access to edit.php without insert/update/delete
After you’ve created the new role, you need to add the capability to it using add_cap. Check here for more info: https://codex.wordpress.org/Function_Reference/add_cap I think that for your particular case, you could replicate an Author but then remove certain capabilities using remove_cap https://codex.wordpress.org/Function_Reference/remove_cap
Split reads to a different connection string
You can use WordPress HyperDB plugin.
Is it possible to store Custom Post Type data in separate set of tables and still have wp_post class functionality?
Is it possible to store Custom Post Type data in separate set of tables and still have wp_post class functionality?