…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…
Post: Recovering Innodb table Corruption
July 4, 2008 By 19 Comments
…delete any data (though you can create or drop Innodb tables): mysql> optimize table test; +———–+———-+———-+———————————-+ | Table | Op | Msg_type | Msg_text | +———–+———-+———-+———————————-+ | test.test | optimize | error… after MySQL crashes to make sure indexes are not corrupted. So we looked at how to get your data back from simple Innodb Table Corruption. In more complex cases you may need to use higher innodb_force_recovery modes to block…
Post: MySQL Crash Recovery
July 30, 2006 By 26 Comments
… number of Innodb tables you have, as well as many other operations, so beware. Binary log corruption – Binary log may become corrupted and out…. In MySQL 5.0 XA is taking care of this synchronization. .frm Corruption – Few people know MySQL is not really ACID even with Innodb tables…
Post: Innodb Recovery Update - The tricks what failed.
May 24, 2007 By 3 Comments
… could mean all sorts of different things: Versions later than MySQL 5.0.33 are not frequently used True many distributions… 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…
Post: Magic Innodb Recovery self healing
May 22, 2007 By 2 Comments
… the table corrupting with Innodb, as it is limited to only one particular index on one particular table type it is likely to be Innodb…’t really recover data on per table basics. Also if MySQL crashes during recovery lower values of innodb_force_recovery normally would not… to now dump potentially corrupted tables (in this particular corruption instance Innodb did not print table name in question), drop tables, restart Innodb without innodb_force_recovery and…
Post: Verifying backup integrity with CHECK TABLES
February 1, 2012 By 4 Comments
… asked how to check tables for corruption. This kind of ties into my recent post on InnoDB‘s handling of corrupted pages, because the best way to check for corruption is with CHECK TABLES, but if a page is corrupt, InnoDB will crash the server to prevent access to the corrupt data…
Post: Data Corruption, DRBD and story of bug
November 29, 2010 By 6 Comments
… pastebin. Everything below is related to InnoDB-plugin/XtraDB, but not to regular InnoDB ( i.e in MySQL 5.0) In short, if… 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…
Post: Percona Server 5.5.10 (Release Candidate)
April 4, 2011 By 4 Comments
…innodb_overwrite_relay_log_info was renamed to innodb_recovery_update_relay_log. (Yasufumi Kinoshita) Old system variable innodb_pass_corrupt_table was renamed to innodb_corrupt_table…
Post: Add an option to Fail on Innodb Initialize failure, Please ?
October 11, 2007 By 9 Comments
… to resolve this “frm corruption” issue it is the time to return to it again. During MySQL 5.0 release cycle the… made so now MySQL does not stop if Innodb storage engine failed to initialize but starts properly… just having Innodb tables unavailable. I honestly… see it unless you look in MySQL server Error Logs but the error message accessing Innodb tables is also very obfuscated: error : Incorrect…
Post: How Percona Server handles data corruption more gracefully
January 6, 2012 By 2 Comments
… while ago about how Percona Server handles corrupted data more gracefully than the standard MySQL server from Oracle. The short version is… whole server. With standard MySQL from Oracle, if any page of data in InnoDB is found to be corrupt, the entire instance will… others. Percona Server handles corruption more gracefully, if you enable it, by simply marking the single table as corrupt, and not crashing the…
