RE: Symlinks not working when pointing to another table.
-Original Message- From: Julien Lory [mailto:julien.l...@gmail.com] Sent: Thursday, September 02, 2010 12:31 PM To: mysql@lists.mysql.com Subject: Symlinks not working when pointing to another table. Hello, I've done lot of researches and tests but can't find any answer. I need to share one table between two db, those two db are in the same path ( /var/lib/mysql/db1 db2 ). I created symbolic links for db2 pointing to the table in db1. When I query the table from db2 I get this error : 'ERROR 1030 (HY000): Got error 140 from storage engine' I'm sure it was working in previous version of MySQL, but from the last version it's no longer working. This is how it looks : test-lan:/var/lib/mysql/test3# ls -alh drwx-- 2 mysql mysql 4.0K 2010-08-30 13:28 . drwxr-xr-x 6 mysql mysql 4.0K 2010-08-30 13:29 .. lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.frm - /var/lib/mysql/test/blbl.frm lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYD - /var/lib/mysql/test/blbl.MYD lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYI - /var/lib/mysql/test/blbl.MYI -rw-rw 1 mysql mysql 65 2010-08-30 13:24 db.opt I really need those symlinks, is there a way to make them working like before ? ( old MySQL-server is fine ) Just out of curiosity. If you're using apparmor and this new directory is on another partion or mount point or anything, you might have to add a rule in apparmor's config for them... -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Symlinks not working when pointing to another table.
I'm using Debian Lenny ( up to date ), so there is no app armor / selinux / grsec :/ ii mysql-client-5.0 5.0.51a-24+lenny4 MySQL database client binaries ii mysql-common 5.0.51a-24+lenny4 MySQL database common files ii mysql-server-5.0 5.0.51a-24+lenny4 MySQL database server binaries On 02/09/2010 16:18, Daevid Vincent wrote: -Original Message- From: Julien Lory [mailto:julien.l...@gmail.com] Sent: Thursday, September 02, 2010 12:31 PM To: mysql@lists.mysql.com Subject: Symlinks not working when pointing to another table. Hello, I've done lot of researches and tests but can't find any answer. I need to share one table between two db, those two db are in the same path ( /var/lib/mysql/db1 db2 ). I created symbolic links for db2 pointing to the table in db1. When I query the table from db2 I get this error : 'ERROR 1030 (HY000): Got error 140 from storage engine' I'm sure it was working in previous version of MySQL, but from the last version it's no longer working. This is how it looks : test-lan:/var/lib/mysql/test3# ls -alh drwx-- 2 mysql mysql 4.0K 2010-08-30 13:28 . drwxr-xr-x 6 mysql mysql 4.0K 2010-08-30 13:29 .. lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.frm - /var/lib/mysql/test/blbl.frm lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYD - /var/lib/mysql/test/blbl.MYD lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYI - /var/lib/mysql/test/blbl.MYI -rw-rw 1 mysql mysql 65 2010-08-30 13:24 db.opt I really need those symlinks, is there a way to make them working like before ? ( old MySQL-server is fine ) Just out of curiosity. If you're using apparmor and this new directory is on another partion or mount point or anything, you might have to add a rule in apparmor's config for them... -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Symlinks not working when pointing to another table.
On 9/2/2010 3:31 PM, Julien Lory wrote: Hello, I've done lot of researches and tests but can't find any answer. I need to share one table between two db, those two db are in the same path ( /var/lib/mysql/db1 db2 ). I created symbolic links for db2 pointing to the table in db1. When I query the table from db2 I get this error : 'ERROR 1030 (HY000): Got error 140 from storage engine' I'm sure it was working in previous version of MySQL, but from the last version it's no longer working. This is how it looks : test-lan:/var/lib/mysql/test3# ls -alh drwx-- 2 mysql mysql 4.0K 2010-08-30 13:28 . drwxr-xr-x 6 mysql mysql 4.0K 2010-08-30 13:29 .. lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.frm - /var/lib/mysql/test/blbl.frm lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYD - /var/lib/mysql/test/blbl.MYD lrwxrwxrwx 1 mysql mysql 28 2010-08-30 13:28 blbl.MYI - /var/lib/mysql/test/blbl.MYI -rw-rw 1 mysql mysql 65 2010-08-30 13:24 db.opt I really need those symlinks, is there a way to make them working like before ? ( old MySQL-server is fine ) You cannot share one set of files (one table) between two different MySQL instances. That also means that you cannot share a table between the same instance by pretending it's something else by a symlink. The storage engines are designed with the premise that they have exclusive domain over the files they manage. Sharing is not part of their code. If you need to expose a table from within a different database, you must use a view. -- Shawn Green MySQL Principal Technical Support Engineer Oracle USA, Inc. Office: Blountville, TN -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
