MySQL Error Codes

All-in-One WP Migration plugin uses MySQL/MariaDB to retrieve and store WordPress data (posts, pages, comments, users, and more). On severely limited hosting plans, it is possible to encounter a database limit set by the hosting provider.

Here is a list of all the limits that can be reached when using All-in-One WP Migration:

The number of queries that an account can issue per hour.

The number of updates that an account can issue per hour.

The number of times an account can connect to the server per hour.

The number of simultaneous connections allowed.

If you encounter such a limit, contact your hosting provider and ask if they can increase it.


  1. Mike Bell

    Hi, I have moved my hosting to Fasthosts WordPress hosting, I have set up the WordPress area installing All-in-One Migration plugin but when I try and import my saved site file I get the error message ‘Unable to open file for reading. File: /homepages/15/d4295921792/htdocs/wordpress/wp-content/plugins/all-in-one-wp-migration/storage/a8ntl47j9uju/’ Any ideas on why I am getting this message. Thanks.

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