… dump tables with innodb_force_recovery=4 was confirmed to be added in 5.0.33, meaning you could not really recover corrupted Innodb tables… have some impact. Innodb tables rarely become corrupt Indeed even if you leave out crashes in my experience Innodb tables become corrupted more seldom than MyISAM… example for so they can be fixed. Corruption usually happens in secondary index, so simple ALTER TABLE fixes it This also seems to be…
Post: Data Corruption, DRBD and story of bug
November 29, 2010 By 6 Comments
… the tablespace! InnoDB: The tablespace free space info is corrupt. InnoDB: You may need to dump your InnoDB tables and recreate the whole InnoDB: database! Trash state means that InnoDB won’t… is technical problem with ChangeLog process and it will be fixed soon, but I reported it so it is not lost…
Post: Heikki Tuuri answers to Innodb questions, Part II
November 4, 2007 By 13 Comments
…HT: You are right, bugs that cause data corruption, crashes, or wrong query results get the … greatly to spot scalability problems and find fixes for them. The work continues. I believe… have a fairly large Innodb table (150GB) that is showing poor performance for full table scans. using O_DIRECT…
Post: Add an option to Fail on Innodb Initialize failure, Please ?
October 11, 2007 By 9 Comments
…not stop if Innodb storage engine failed to initialize but starts properly… just having Innodb tables unavailable. I … to get out quickly and fix things. But it gets worse. Innodb failed initialization is not … message and think it is indeed .frm corruption – trying to restore .frm from backup or …
Post: Presentations Announcement: 2010 O'Reilly MySQL Conference & Expo
April 29, 2010 By 4 Comments
…Operating System For MySQL Author: Peter Zaitsev Diagnosing and Fixing MySQL Performance Problems Author: Baron Schwartz, Morgan Tocker EXPLAIN…Write Splitting Author: Baron Schwartz Recovery of lost or corrupted InnoDB tables Author: Aleksandr Kuzminsky Scaling Applications with Caching Sharding and…
Post: Percona sessions at the MySQL conference
March 15, 2010 By 6 Comments
… Here’s a list: Morgan Tocker, Baron Schwartz: Diagnosing and Fixing MySQL Performance Problems Peter Zaitsev: Scaling Applications with Caching, … Hot Backups and More Aleksandr Kuzminsky: Recovery of Lost or Corrupted InnoDB Tables Ryan Lowe: Achieving PCI Compliance with MySQL Yves Trudeau: How…
Post: Magic Innodb Recovery self healing
May 22, 2007 By 2 Comments
…Innodb bug fixed) until today we got MySQL to crash during recovery process right after 17% of log records were applied. Such corruption…dump potentially corrupted tables (in this particular corruption instance Innodb did not print table name in question), drop tables, restart Innodb without innodb_…
Post: Connecting orphaned .ibd files
May 13, 2011 By 12 Comments
…corrupted and innodb_force_recovery doesn’t help Chris Calender suggests two methods. The first is create/drop the table…InnoDB dictionary. It consists of several internal tables. For our topic only SYS_TABLES and SYS_INDEXES are relevant. These are usual InnoDB tables… 0x C168689B fixing new checksum…
Post: Small things are better
October 8, 2006 By 15 Comments
… with Innodb tables. They are designed to never crash, surviving power failures and even partial page writes but still they can get corrupted… bugs, misconfiguration or failures. Sometimes corruption kind be mild, so ALTER TABLE to rebuild the table fixes it. Sometimes table needs to be dropped and…
Post: xtrabackup-0.8
July 1, 2009 By 8 Comments
… possible, moving InnoDB tables between servers”for details) tar4ibd is made to be sure that read of InnoDB page is… size, if needed after –prepare Data page corruption check is added to local backup mode …389360: innobackupex-1.5.1 accepts scp options Fixed bugs: Bug #388062: Update to innobackupex …
