Bug #86573 foreign key cascades use excessive memory
Submitted: 3 Jun 2017 9:20 Modified: 30 Oct 2017 12:28
Reporter: Shane Bester (Platinum Quality Contributor) Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S1 (Critical)
Version:5.7.18 OS:Any
Assigned to: CPU Architecture:Any
Tags: excessive memory, Memory, regression

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:

[3 Jun 2017 12:14] Shane Bester
5.7 memory profile

Attachment: 5.7-mybin.hprof.5344.heap.pdf (application/pdf, text), 14.73 KiB.