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Export and import mysql in chunks

The largest possible packet that can be transmitted to or from a MySQL 8.0 server or client is 1GB. So I wrote some scripts that can export mysql into chunks and also to import chunks. Each chunk consist of a limited rows of a table.

Export mysql

First you need to check if your command line recognizes mysql command. Then you open dump script file and edit variables NO_CHUNKS which is number of chunks and ROWS_IN_CHUNKS. To run the script you need also make it executable (chmod a+x dump.sh).

(If necessary) Upload remotely

Script send_remotely.sh prints out what needs to be done to upload chunks remotely, edit it properly and run ./send_remotely.sh > some_file.sh, in this way you will have the correct file for uploading then simply make new file executable and run it.

Import mysql

To import simply run the script import.sh.