MySQL Bugs: #96400: MTS STOP SLAVE takes over a minute when master crashed during event logging

Bug #96400	MTS STOP SLAVE takes over a minute when master crashed during event logging
Submitted:	1 Aug 2019 13:30	Modified:	2 Aug 2019 10:49
Reporter:	Przemyslaw Malkowski	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Replication	Severity:	S3 (Non-critical)
Version:	5.7.25, 5.7.27	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:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

Test results - 5.7.27

Attachment: 96400_5.7.27.results (application/octet-stream, text), 10.56 KiB.

5.7.27 patch for the bug based on Facebook's implementation with improvements from Percona

Attachment: bug96400_5.7.27.patch (text/x-patch), 15.32 KiB.