Bug #121050 Confusing Last_IO_Error "fatal error 1236" since 8.0 (also affecting 8.4, 9.7 and 26.7) and more.
Submitted: 3 Aug 22:09 Modified: 4 Aug 22:20
Reporter: Jean-François Gagné Email Updates:
Status: Open Impact on me:
None 
Category:MySQL Server: Replication Severity:S3 (Non-critical)
Version:8.0, 8.4, 9.7 and 26.7 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: