MySQL Bugs: #42338: Backup of a database takes long time when there is high load on another database

Bug #42338	Backup of a database takes long time when there is high load on another database
Submitted:	26 Jan 2009 9:02	Modified:	11 Aug 2009 11:55
Reporter:	Bernt Marius Johnsen	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Server: Backup	Severity:	S2 (Serious)
Version:	mysql-6.0-backup	OS:	Any
Assigned to:	Assigned Account	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

Jar file which runs test

Attachment: jl.jar (application/java-archive, text), 31.95 KiB.

Property file for jl.jar

Attachment: test-mysql.prop (application/octet-stream, text), 310 bytes.

Results of measurements.

Attachment: measurements.xls (application/octet-stream, text), 9.50 KiB.

test script used to measure BACKUP times.

Attachment: test.test (application/octet-stream, text), 891 bytes.