Do not try to dump or reload information_schema. It is derived meta
information, not real tables.
-Original Message-
From: Rafał Radecki [mailto:radecki.ra...@gmail.com]
Sent: Monday, February 04, 2013 12:17 AM
To: mysql@lists.mysql.com
Subject: Mysqldump routines dump, problem with lock tables.
Hi All.
I use:
# rpm -qa | grep -i percona-server-server
Percona-Server-server-55-5.5.28-rel29.3.388.rhel6.x86_64
My system:
# uname -a;cat /etc/redhat-release
Linux prbc01.mg.local 2.6.32-279.19.1.el6.centos.plus.x86_64 #1 SMP Wed
Dec 19 06:20:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Red Hat
Enterprise Linux Server release 6.3 (Santiago)
I have a backup script which at some point calls:
mysqldump --default-character-set=utf8 --routines --no-data --no-
create-info --skip-triggers -S /mysql/database.sock -u backup -pxxx
database
and I have error:
mysqldump: Got error: 1045: Access denied for user 'yyy'@'zzz' (using
password: YES) when using LOCK TABLES
So I thinke that mysqldump locks the table (--add-locks) by default.
But for this user:
mysql show grants for yyy@'zzz';
+--
---
---+
| Grants for backup@localhost
|
+--
---
---+
| GRANT SELECT, RELOAD, LOCK TABLES, SHOW VIEW ON *.* TO 'yyy'@'zzz'
IDENTIFIED BY PASSWORD ... |
|
+--
---
---+
2 rows in set (0.00 sec)
So why is this error showing?
When I add --single-transaction to mysqldump everything is ok. But I
would like to have this table locked because:
mysql SELECT ENGINE
- FROM information_schema.TABLES
- WHERE TABLE_SCHEMA = 'information_schema'
- AND TABLE_NAME = 'routines';
++
| ENGINE |
++
| MyISAM |
++
so information_schema.tables is myisam.
So why do I get the error about LOCK TABLES?
Best regards,
Rafal Radecki.
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