MySQL Bugs: #50142: Backup - Limitation "Only 1 Backup or Restore session allowed" not documented

Bug #50142	Backup - Limitation "Only 1 Backup or Restore session allowed" not documented
Submitted:	7 Jan 2010 16:14	Modified:	8 Jan 2010 15:51
Reporter:	Sanjay Manwani	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Documentation	Severity:	S3 (Non-critical)
Version:		OS:	Any
Assigned to:	Paul DuBois	CPU Architecture:	Any

Description:
Ingo noticed a restriction, which was not found in the
 MySQL Backup reference manual and not in the new list:

Only one BACKUP or RESTORE operation can run on one server at a time.
That is, only one BACKUP or one RESTORE can run at a time. Neither two
BACKUP, nor two RESTORE, nor one BACKUP plus one RESTORE can run at the
same time.

How to repeat:
This is a documentation bug.

Suggested fix:
Change in Documentation

Thank you for your bug report. This issue has been addressed in the documentation. The updated documentation will appear on our website shortly, and will be included in the next release of the relevant products.

Added to http://dev.mysql.com/doc/mysql-backup/en/mysql-backup-restrictions.html:

The server cannot execute multiple BACKUP DATABASE and RESTORE
statements concurrently. Each statement blocks the other as well as 
other instances of itself.