Recovery of Lost or Corrupted InnoDB Tables

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When an InnoDB table is deleted physically its records remain untouched some time. Knowing how InnoDB stores information and the table’s structure it is possible to recover the records.

The session covers topics:

  • InnoDB page format
  • Internal system tables SYS_INDEXES and SYS_TABLES
  • InnoDB Primary and Secondary keys
  • Typical failure scenarios
  • Dealing with corrupted InnoDB tablespace
  • Recovery from a raw partition

The session is illustrated with examples using Percona in-house InnoDB Recovery Tool.

Aleksandr Kuzminsky

Percona Inc

Aleksandr Kuzminsky is a colsultant of Percona Inc since 2008.
His primary focus is emergency data recovery from corrupted databases.

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