… applications) and observing whenever memory usage shrinks can be very helpful in diagnostics….: InnoDB NAME: #sql516_1c42_2 TABLE_ROWS: 0 AVG_ROW_LENGTH: 0 DATA_LENGTH: …Page hash 127499384 Dictionary cache 512619219 (509995888 + 2623331) File system 294352 (82672 + 211680) Lock system 318875832 (…
Post: Reasons for run-away main Innodb Tablespace
June 10, 2010 By 1 Comment
… running MySQL With innodb_file_per_table option but your ibdata1 file which holds main (or system) … – these are system tables, also known as data dictionary – table and index definitions and related stuff…your system tablespace size to explode – they will shrink to the normal size and all what …
Comment: Choosing innodb_buffer_pool_size
January 20, 2011 By 38 Comments
… production-innodb-database allocates now of about 50GB of filesystem-space, the dump is about 19GB big. i know that innodb – ibdata – files will never shrink, so i have to drop and import the data to get rid of this… learned(thanx to your blog!) i definitely want to increase innodb_puffer_pool_size(which is set to just 386MB). my…
Post: High-Performance Click Analysis with MySQL
December 22, 2008 By 13 Comments
…. What does this have to do with InnoDB? Data clustering. InnoDB‘s primary keys define the physical order … later. Alternately, you can store the atomic data as CSV files and use the CSV engine so you … indexes other than the primary key, we can shrink the primary key’s width: create table ads_…
Post: 10+ Ways to Crash or Overload MySQL
November 13, 2007 By 20 Comments
…long_data call – Server buffers such data until you have executed prepared statement. Innodb Table Cache Leak – Innodb never shrinks its internal table cache (data …technique with innodb_file_per_table. However you can’t control growth of Innodb system tablespace which is used to hold undo data …
