MySQL Bugs: #50561: ALTER PARTITIONS does not have adequate lock, breaks with concurrent I

Bug #50561	ALTER PARTITIONS does not have adequate lock, breaks with concurrent I_S query
Submitted:	23 Jan 2010 1:12	Modified:	14 Oct 2010 12:58
Reporter:	Mattias Jonsson	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Partitions	Severity:	S2 (Serious)
Version:	5.1+	OS:	Any
Assigned to:	Mattias Jonsson	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

Apply this diff to a mysql-5.1(-bugteam) tree

Attachment: b50561.how_to_repeat.diff (application/octet-stream, text), 2.28 KiB.

unpack these test files under mysql-test and run ./mtr b50561

Attachment: b50561-test.tgz (application/x-gzip, text), 1.33 KiB.