May 23, 2012

Comment: How to change innodb_log_file_size safely

…:16 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd filesInnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer… 120502…

Post: Faster Point In Time Recovery with LVM2 Snaphots and Binary Logs

…updates on CentOS. If you are using InnoDB, it is also important that your …recovery when an LSN mismatch occurs and still end up with inconsistent data. Now, assuming I have the following logical volumes – mysql-data… a consistent snapshot of the MySQL data files. Restoring snapshot alone may not be…

Comment: How to recover a single InnoDB table from a Full Backup

…# xtrabackup_55 –backup –innodb-file-per-table –target-dir=/mnt/mysql/export/ –tables=data # xtrabackup_55 –prepare –export –innodb-file-per-table –… 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

Comment: Connecting orphaned .ibd files

… “st_results#P#p_1″ If doesn’t work please file a bug here https://bugs.launchpad.net/percona-data-recovery-tool-for-innodb

Post: Troubleshooting MySQL Memory Usage

… TABLE_NAME: my ENGINE: InnoDB NAME: #sql516_1c42_2 TABLE_ROWS: 0 AVG_ROW_LENGTH: 0 DATA_LENGTH: 16384 INDEX_LENGTH: 0… 127499384 Dictionary cache 512619219 (509995888 + 2623331) File system 294352 (82672 + 211680) Lock system 318875832 (318747272 + 128560) Recovery system 0 (0 + 0) Threads…

Comment: How FLUSH TABLES WITH READ LOCK works with Innodb Tables

… be recoverable 100% of the time. You might have found recovery bug but there have been very few of them. Typically… from either not having log files and data on the same partition or synchronization of binary log and innodb snapshot. In certain versions…

Post: Data Recovery Toolkit for InnoDB Version 0.1 Released

InnoDB data recovery to provide our customers effective data recovery services and one of major parts of these strategies is our toolkit for InnoDB data recovery. … Works with single tablespaces and file-per-table tablespaces Able to recover data even when processed InnoDB page has been reassigned …

Post: How to recover deleted rows from an InnoDB Tablespace

…the following link: http://www.percona.com/docs/wiki/innodb-data-recovery-tool:mysql-data-recovery:generating_a_table_definition With the table definition on…the data you need to recover and save it in another file. This is the output of our example: ~/data-recovery# cat data/salaries.recovery

Post: How innodb_open_files affects performance

…:36 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd filesInnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer… InnoDB: Doing recovery: scanned…

Post: Recovering Innodb table Corruption

… cases Innodb will typically print something like this: InnoDB: Database page corruption on disk or a failed InnoDB: file read of page 7. InnoDB: You… Running in innodb_force_recovery mode Innodb becomes read only for data operations and so you can’t insert or delete any data (though you…