Thursday, September 8, 2016

MySQL InnoDB File Architecture


Keep in mind that /var/lib/mysql/ibdata1 is the busiest file in the InnoDB infrastructure. It normally houses six types of information:

  • Table Data
  • Table Indexes
  • MVCC (Multiversioning Concurrency Control) Data
  • Rollback Segments
  • Undo Space
  • Table Metadata (Data Dictionary)
  • Double Write Buffer (background writing to prevent reliance on OS caching)
  • Insert Buffer (managing changes to non-unique secondary indexes)
  • Please find below architecture for complete details,

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