Bug #78916 mysqldump doesn`t support general tablespace.
Submitted: 22 Oct 2015 7:44 Modified: 15 Dec 2017 8:05
Reporter: Shinya Sugiyama Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: mysqldump Command-line Client Severity:S4 (Feature request)
Version:5.7.9, 5.7.20 OS:CentOS (6)
Assigned to: CPU Architecture:Any
Tags: General Tablespace

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file: