…. InnoDB: Your database may be corrupt or you may have copied the InnoDB InnoDB: tablespace but not the InnoDB log files. See InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: for more…
Post: Ultimate MySQL variable and status reference list
January 8, 2011 By 4 Comments
…MySQL manual, especially …innodb_flush_methodblogpercona.commanual innodb_force_recoveryblogpercona.commanual Innodb_have_atomic_builtinsblogpercona.commanual innodb_io_capacityblogpercona.commanual innodb_lock_wait_timeoutblogpercona.commanual innodb….commanual rpl_recovery_rankblogpercona.commanual …
Post: Percona Testing: Innodb crash / recovery tests available
December 21, 2011 By Leave a Comment
…know this, but there are precious few innodb crash recovery tests available. Some folks have noticed …tests have been created for the main MySQL branch. The MySQL at Facebook branch has a number …./kewpie.py –suite=innodbCrash –basedir=/path/to/basedir –force –randgen-seed=time –repeat=3 gets us:…
Post: Recovering Innodb table Corruption
July 4, 2008 By 19 Comments
… portion of pages so once you started Innodb with innodb_force_recovery=1 you can do the following: mysql> CREATE TABLE `test2` ( -> `c` char(255…://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even If you get such assertion failures most likely higher innodb_force_recovery…
Post: Magic Innodb Recovery self healing
May 22, 2007 By 2 Comments
… recover data on per table basics. Also if MySQL crashes during recovery lower values of innodb_force_recovery normally would not work. Reading Documentation one… really required by trying lower recovery settings. Happily I was able to restart MySQL with innodb_force_recovery=4 (SRV_FORCE_NO_IBUF_MERGE). So in…
Post: How InnoDB handles REDO logging
February 3, 2011 By 18 Comments
…. Both the MySQL configuration and hardware will affect the speed at which InnoDB can log. You can request that InnoDB force its REDO records… by enabling the innodb_recovery_stats option in Percona Server, which allows you to see the progress made during recovery. How does this…
Post: Innodb Recovery Update - The tricks what failed.
May 24, 2007 By 3 Comments
… avoid dumping the data and find some other way to recovery. Examining Innodb page content and crash information we figured out it… tables with innodb_force_recovery=4 was confirmed to be added in 5.0.33, meaning you could not really recover corrupted Innodb tables… could mean all sorts of different things: Versions later than MySQL 5.0.33 are not frequently used True many distributions…
Post: Connecting orphaned .ibd files
May 13, 2011 By 12 Comments
…. ibdata1 is erroneously removed 2. ibdata1 is heavily corrupted and innodb_force_recovery doesn’t help Chris Calender suggests two methods. The first… modify SPACE in InnoDB dictionary. MySQL must be stopped at this point. There is a tool ibdconnect in Percona InnoDB Recovery Tool. Make sure… was tested on MySQL 5.1 on CentOS 5.6 x86_64. However it expected to work on all versions of MySQL/InnoDB.
Comment: Returning to InnoDB scalability
August 7, 2006 By 42 Comments
… InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html InnoDB: about forcing recovery. mysqld got signal…
Post: Innodb Recovery - Is large buffer pool always better ?
July 17, 2007 By 3 Comments
… Innodb crash recovery on box with large amount of memory (64GB) with Innodb Buffer pool configured to be just a bit over 20GB. Innodb recovery was taking long hours with reasonably sized Innodb log files… being forced to scan good portion of it finding place to insert the page. So I took a shot at restarting MySQL…
