Bug #67041 'mysql' folder in datadir becomes empty after upgrade.
Submitted: 1 Oct 2012 22:00 Modified: 2 Apr 2013 7:36
Reporter: Peter Laursen (Basic Quality Contributor) Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Server: Installing Severity:S1 (Critical)
Version:5.5.28 OS:Any
Assigned to: CPU Architecture:Any

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: