To recover a dropped or corrupt table with Percona Data Recovery Tool for InnoDB you need two things: media with records… know how InnoDB uses `PREC` please let me know. mysql> select * from SYS_COLUMNS WHERE TABLE_ID=741; +———-+—–+————-+——-+———+——+——+ | TABLE_ID | …
Post: Benchmarking Percona Server TokuDB vs InnoDB
May 7, 2013 By 32 Comments
…to TokuDB. So TokuDB shows about 2.8x better throughput, and on data size: InnoDB table: 58GB and 244.980.192 records TokuDB table…recover socket=/var/lib/mysql/mysql.sock user=root skip-grant-tables…
Comment: How to recover table structure from InnoDB dictionary
May 8, 2013 By 4 Comments
… you can get your tables back with page_parser and constraints_parser tools. You can check the docs how to do it http://www.percona.com/docs/wiki/innodb-data-recovery-tool:mysql-data-recovery:start . The biggest challenge here is to find index_id for each table – http://www.percona.com/docs/wiki/innodb-data-recovery-tool:mysql-data-recovery:advanced_techniques#recovering…
Post: Recovering Innodb table Corruption
July 4, 2008 By 22 Comments
… 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… may wish to use Innodb Recovery Toolkit which is also helpful in cases you’ve want to recover deleted rows or dropped table. I should also mention at Percona we offer assistance in MySQL Recovery, including recovery from Innodb…
Post: How to recover a single InnoDB table from a Full Backup
January 25, 2012 By 10 Comments
…be focus on how to recover a single tablespace using stock MySQL server. First, you must meet certain prerequisites to be able to restore …headaches 
Instead of recovering all the InnoDB data we are going to recover only the “salaries” table: Discard the tablespace of the salaries table: mysql> set…
Post: Recovering CREATE TABLE statement from .frm file
December 17, 2008 By 5 Comments
… .frm file for the table and you need to recover CREATE TABLE statement for this table. In particular when we do Innodb Recovery we often get… in between. So how to recover CREATE TABLE from .frm file ? Recovering from .frm for Innodb Table If we simply copy .frm file back to the database we…
Post: How to recover deleted rows from an InnoDB Tablespace
February 20, 2012 By 4 Comments
…I explained how it could be possible to recover, on some specific cases, a single table from a full backup in order to save time…information related with tables and indexes (with their IDs) to the error log. mysql (employees) > CREATE TABLE innodb_table_monitor (id int) ENGINE=InnoDB; TABLE: name …
Post: A recovery trivia or how to recover from a lost ibdata1 file
June 3, 2011 By 8 Comments
… possible to recover the data?” The answer was yes since I was sure to at least be able to recover the data with the Innodb recovery… Innodb tables Once the Innodb tablespace id is minus one of a customer table alter the table definition from MyISAM to Innodb Discard the tablespace Replace the table…
Post: How to estimate time it takes Innodb to Recover ?
May 9, 2007 By 7 Comments
… depending on your record size and workload. If you have tables with short rows your log records will likely be more… is to run some benchmarks – apply the load you expect system to handle and crash Innodb few times to see how long it takes Innodb to recover. I’d recommend to crash by power cycling…
Post: How well does your table fits in innodb buffer pool ?
December 9, 2010 By 12 Comments
…innodb_sys_tables ON table_id = innodb_sys_tables.id JOIN innodb_index_stats ON innodb_index_stats.table_name = innodb_sys_tables.name AND innodb_sys_indexes.name = innodb… how many pages are in buffer pool for given table (cnt), how many … pool which may take hours to recover. This tool can be also…
