… | 2359297 | | 10290 | root | localhost | NULL | Query | 317 | Waiting for table flush | flush tables with read lock | 0 | 0 | 1 | | 10291 | root | localhost… for situation like above and either kill FLUSH TABLES WITH READ LOCK and fail backup or kill long running SELECT queries to…’re just using Innodb tables and you’re not actively changing users, stored procedures etc (which are stored in MyISAM tables anyway) you…
Comment: How FLUSH TABLES WITH READ LOCK works with Innodb Tables
March 26, 2012 By 20 Comments
… that is derived from that. Essentially, we are using FLUSH TABLES WITH READ LOCK, and then run ‘lvcreate -s’ to create…, we bring up the new mysqld, which finds a crashed innodb, recovers this, and then it is being configured to become… recovery of the innodb in the target location fails, though, even though it has been made even under FLUSH TABLES WITH READ LOCK…
Post: Faster Point In Time Recovery with LVM2 Snaphots and Binary Logs
February 23, 2012 By Leave a Comment
… CentOS. If you are using InnoDB, it is also important that… if our salaries table is restored. mysql> SHOW TABLES; +———————+ | Tables_in_employees | +———————+ … | salaries | … +———————+… procedure in case something fails during the operation. * While …
Comment: How FLUSH TABLES WITH READ LOCK works with Innodb Tables
March 26, 2012 By 20 Comments
… bug or user error. I think the innodb data from the backup where Innodb fails to recover should be passed to your support provider for investigation. It might be related to Innodb itself or… which are not handled if you have DDL however FLUSH TABLES WITH READ LOCK should prevent these.
Comment: Copying InnoDB tables between servers
March 12, 2012 By 10 Comments
…,but failed,here is my process: [redacted -- this question belongs on a forum, not in this blog's comments. - BPS] InnoDB: Progress in %: 93 95 96 98 100 done. but when i check the table t1 i find nothing…
Post: Recovering Innodb table Corruption
July 4, 2008 By 19 Comments
…Innodb will typically print something like this: InnoDB: Database page corruption on disk or a failed InnoDB: file read of page 7. InnoDB… or drop Innodb tables): mysql> optimize table test; +———–+———-+———-+———————————-+ | Table | Op | Msg_type | Msg_text…
Post: INSERT INTO ... SELECT Performance with Innodb tables.
July 12, 2006 By 21 Comments
Everyone using Innodb tables probably got use to the fact Innodb tables perform non locking reads, meaning unless you use some modifiers … table. It also applies to similar tables with where clause and joins. It is important for tables which is being read to be Innodb… done outside of MySQL Server) as otherwise the script will fail second time. If you need result to be even closer…
Post: SHOW INNODB STATUS walk through
July 17, 2006 By 40 Comments
… update insert into child values(2,2) Foreign key constraint fails for table `test/child`: , CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent… tables locked by transactions. Innodb does not lock tables for normal operation so number of tables locked normally stays 0, unless it is ALTER TABLE…
Post: Add an option to Fail on Innodb Initialize failure, Please ?
October 11, 2007 By 9 Comments
… now MySQL does not stop if Innodb storage engine failed to initialize but starts properly… just having Innodb tables unavailable. I honestly do not… accessing Innodb tables is also very obfuscated: error : Incorrect information in file: ‘./prod/user.frm’ How this supposed to tell you Innodb (or…
Post: Innodb Recovery Update - The tricks what failed.
May 24, 2007 By 3 Comments
… be no way to make Innodb avoid touching it. Even when we dropped all Innodb tables (for test purposes) Innodb still was crashing if we attempted to enable insert buffer. I think it would be nice for Innodb… have some impact. Innodb tables rarely become corrupt Indeed even if you leave out crashes in my experience Innodb tables become corrupted more seldom…
