What is parallel export?
Parallel export is the process of doing exports simultaneously in a multisite environment.
Does the Prime Mover plugin support parallel export in multisite?
Yes, the plugin is tested to work with parallel export. This means that in a multisite setting, you can export subsites simultaneously, and it should work fine.
What are the limitations of Parallel export?
Parallel export is only limited by your server resources. Since exporting can consume RAM, CPU, and disk space, be careful when running parallel exports, as they will consume significant resources! Your site’s backend and frontend might become very slow due to heavy resource usage.
Do you recommend doing parallel export in multisite?
No, because sometimes in very rare instances, a race condition might occur. This condition can corrupt your export data and files. In addition, this puts a heavy load on your multisite server. Your server might go offline if you do parallel export excessively. This is typically important if it’s a production or live server.
If you need to save time by exporting multiple sites in parallel, export a few together. Instead of exporting 10 sites at a time, export 2 or 3 sites at a time. This keeps server usage under control and is less error-prone.
If you want a perfect export, export one site at a time.
What is parallel import?
Parallel import is the process of restoring packages simultaneously in a multisite environment.
Does the Prime Mover plugin support parallel import in multisite?
No, because an import process requires a dedicated database access. WordPress does not natively support parallel read/write across multiple databases, as it defaults to a single MySQL or MariaDB instance. So you can only import one package at a time.